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Cu-Mo selective recovery from As containing copper sulfide with sea water flotation

Research Project

Project/Area Number 19H02659
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 31020:Earth resource engineering, Energy sciences-related
Research InstitutionKyushu University

Principal Investigator

MIKI HAJIME  九州大学, 工学研究院, 准教授 (10706386)

Co-Investigator(Kenkyū-buntansha) 笹木 圭子  九州大学, 工学研究院, 教授 (30311525)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords浮遊選別 / 含ヒ素銅鉱物 / 含モリブデン銅精鉱 / 過酸化水素水 / ピロ亜硫酸ナトリウム / 銅ヒ素分離 / 銅モリブデン分離 / 海水利用 / 電気化学 / モリブデン回収 / 難処理鉱
Outline of Research at the Start

世界の銅鉱山は、有価なモリブデンと有害なヒ素やアンチモン等を随伴するなど難処理化が進行する傾向にある。申請者は、鉱物処理工程(浮遊選別)において海水を用い、安価な酸化還元剤と組み合わせることにより、銅およびモリブデンを分離して回収する良好な予備試験結果を得てきた。本効果を、各種精密な電気化学的手法により解析し、鉱物表面に起こる酸化還元反応と生成物を同定することにより、分離機構と、より効率的な手法について探索する。また、実際の難処理銅鉱に適用し、黄鉄鉱など不純物の影響や、脈石成分、粘土鉱物に対する酸化還元剤や海水成分の影響等、海水を用いた浮遊選別法の確立にあたり必要な条件と有用性を検討する。

Outline of Final Research Achievements

It was difficult to remove arsenic from arsenic-containing copper concentrate with flotation and it is serious issue. We invented method with adding inexpensive and safe redox agents (hydrogen peroxide solution, sodium pyrosulfite), copper minerals as sink and arsenic-containing copper minerals as float with high efficiency by almost the same procedure as conventional flotation circuits. This method was also recognized using extremely oxidized concentrates, refractory complex copper concentrates and arsenic containing copper ore.
On the other hand, for selective flotation of molybdenum and copper from molybdenum-containing copper concentrates, same method can be applied with high separation efficiency, and seawater and slaked lime could also be used. Effects were also observed in various real concentrate samples and ore samples.
This method has received high praise in academic conferences and papers in Japan and overseas as a method that can be applied to actual operation.

Academic Significance and Societal Importance of the Research Achievements

銅需要増加に伴い銅鉱山の銅品位は減少の傾向にあり、特にヒ素やモリブデンなどの不純物の除去が大きな問題とされてきたが、一般的な浮遊選別による分離は困難であった。本研究において、安価安全な酸化還元剤添加と浮遊選別によって銅とヒ素、モリブデンが高い効率で分離できたことは、銅資源確保、環境負荷低減の観点から社会的意義が大きい。また、酸化還元剤とその他浮選剤、銅鉱物の反応機構などにおいて、これまで銅の浮遊に作用するとされてきた浮選剤が抑制剤として働く場合があり、作用の制御が可能なこと、消石灰と海水による沈殿が分離効率の上昇に働く場合があるなど、新しい作用機構を見出したことから、学術的意義も大きい。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (47 results)

All 2022 2021 2020 2019

All Journal Article (19 results) (of which Peer Reviewed: 19 results,  Open Access: 5 results) Presentation (25 results) (of which Int'l Joint Research: 13 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Effect of Sodium Metabisulfite on Selective Flotation of Chalcopyrite and Molybdenite2021

    • Author(s)
      Semoto Yuki、Suyantara Gde Pandhe Wisnu、Miki Hajime、Sasaki Keiko、Hirajima Tsuyoshi、Tanaka Yoshiyuki、Aoki Yuji、Ura Kumika
    • Journal Title

      Minerals

      Volume: 11 Issue: 12 Pages: 1377-1377

    • DOI

      10.3390/min11121377

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Na2SO3 on the floatability of chalcopyrite and enargite2021

    • Author(s)
      Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Miki Hajime、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Journal Title

      Minerals Engineering

      Volume: 173 Pages: 107222-107222

    • DOI

      10.1016/j.mineng.2021.107222

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mineralogical Prediction on the Flotation Behavior of Copper and Molybdenum Minerals from Blended Cu?Mo Ores in Seawater2021

    • Author(s)
      Tanaka Yoshiyuki、Miki Hajime、Suyantara Gde、Aoki Yuji、Hirajima Tsuyoshi
    • Journal Title

      Minerals

      Volume: 11 Issue: 8 Pages: 869-869

    • DOI

      10.3390/min11080869

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flotation behavior of chalcopyrite and enargite in sodium sulfite aqueous solution2021

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Yoshiyuki Tanaka, Yuji Aoki
    • Journal Title

      Proceedings of Flotation'21 International Conference

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of selective flotation of copper and molybdenum with various redox reagents2021

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Yuki Semoto, Keiko Sasaki, Yoshiyuki Tanaka, Yuji Aoki
    • Journal Title

      Proceedings of Flotation'21 International Conference

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 九州大学・住友金属鉱山株式会社における「銅原料中からのヒ素低減技術開発」に向けた取り組み2021

    • Author(s)
      三木一、沖部奈緒子、Gde Pandhe Wisnu Suyantara、小山恵史、笹木圭子、平島剛、中村壮志、青木悠二、田中善之、諏訪貴大
    • Journal Title

      環境資源工学

      Volume: 68 Pages: 124-131

    • NAID

      40022824090

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of a sulfite reagent as a depressants of chalcopyrite in flotation of copper and molybdenum2021

    • Author(s)
      Semoto Yuki、Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Kumika Ura、Miki Hajime、Sasaki Keiko、Yoshiyuki Tanaka
    • Journal Title

      Proceedings of International Symposium on Earth Science and Technology 2021

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bubble interactions with chalcopyrite and molybdenite surfaces in seawater2020

    • Author(s)
      Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Miki Hajime、Sasaki Keiko
    • Journal Title

      Minerals Engineering

      Volume: 157 Pages: 106536-106536

    • DOI

      10.1016/j.mineng.2020.106536

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of H2O2 and potassium amyl xanthate on separation of enargite and tennantite from chalcopyrite and bornite using flotation2020

    • Author(s)
      Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Miki Hajime、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Journal Title

      Minerals Engineering

      Volume: 152 Pages: 106371-106371

    • DOI

      10.1016/j.mineng.2020.106371

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Selective flotation for removal of impurities on copper concentrates with various redox reactions2020

    • Author(s)
      Miki Hajime、Hirajima Tsuyoshi、Suyantara Gde Pandhe Wisnu、Orii Yuta、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Journal Title

      Proceedings of IMPC 2020:XXX International Mineral Processing Congress

      Volume: 1 Pages: 1434-1442

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of seawater and process water on copper-molybdenum rougher flotation in batch and pilot test2020

    • Author(s)
      Tanaka Yoshiyuki、Miki Hajime、Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Aoki Yuji、Okamoto Hideyuki
    • Journal Title

      Proceedings of IMPC 2020:XXX International Mineral Processing Congress

      Volume: 1 Pages: 1443-1453

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of a sulfite reagent on floatability of chalcopyrite and enargite2020

    • Author(s)
      Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Orii Yuta、Miki Hajime、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Journal Title

      Proceedings of IMPC 2020:XXX International Mineral Processing Congress

      Volume: 1 Pages: 1864-1873

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The study of selective flotation separation of copper-molybdenite with seawater2020

    • Author(s)
      Semoto Yuki、Suyantara Gde Pandhe Wisnu、Miki Hajime、Sasaki Keiko、Hirajima Tsuyoshi、Aoki Yuji
    • Journal Title

      Proceedings of International Symposium on Earth Science and Technology 2020

      Volume: 1 Pages: 192-193

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Separation of molybdenite and chalcopyrite using various oxidation treatments2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi, Mitsuru Sawada
    • Journal Title

      Proceedings of 10th Copper International Conference

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Heating Treatment on Magnetic Properties2019

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki
    • Journal Title

      Proceedings of 10th Copper International Conference

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective Flotation on Chalcopyrite and Molybdenite with Various Redox Reactions2019

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki
    • Journal Title

      Proceedings of The 15th Internatonal Symposium on East Asian Resources Recycling Technology

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki
    • Journal Title

      Proceedings of Flotation'19 International Conference

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of seawater on bubble interactions with chalcopyrite and molybdenite surfaces2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki
    • Journal Title

      Proceedings of Flotation'19 International Conference

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study of selective flotation of copper sulfide and As containing copper minerals2019

    • Author(s)
      Yuta Orii, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Shigeto Kuroiwa, Yuji Aoki
    • Journal Title

      Proceedings of International Symposium on Earth Science and Technology 2019

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Oxidation treatment for separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation2022

    • Author(s)
      Gde Pandhe Wisnu Suyantara、三木 一、笹木 圭子、平島 剛、田中善之、滝田絵里
    • Organizer
      資源・素材学会2022年度春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Selective flotation of Copper Mineral and Enargite with PAX and Hydrogen Peroxide2022

    • Author(s)
      Daniyarov Berdakh、三木 一、Gde Pandhe Wisnu Suyantara、笹木 圭子、平島 剛
    • Organizer
      資源・素材学会2022年度春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Flotation behavior of chalcopyrite and enargite in sodium sulfite aqueous solution2021

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Yoshiyuki Tanaka, Yuji Aoki
    • Organizer
      Flotation'21 International Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of selective flotation of copper and molybdenum with various redox reagents2021

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Yuki Semoto, Keiko Sasaki, Yoshiyuki Tanaka, Yuji Aoki
    • Organizer
      Flotation'21 International Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of a sulfite reagent as a depressants of chalcopyrite in flotation of copper and molybdenum2021

    • Author(s)
      Semoto Yuki、Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Kumika Ura、Miki Hajime、Sasaki Keiko、Yoshiyuki Tanaka
    • Organizer
      International Symposium on Earth Science and Technology 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 加熱処理-乾式磁力選別法による含ヒ素銅精鉱からのヒ素除去に関する研究2021

    • Author(s)
      福田弘樹,三木一,Gde Pandhe Wisnu Suyantara,笹木圭子, 平島 剛,青木 悠二,忰山 卓矢
    • Organizer
      資源・素材学会九州支部2021年度若手研究者および技術者の研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 含ヒ素、含モリブデン銅精鉱における選択浮遊選別による不純物除去の試み2021

    • Author(s)
      三木 一、Gde Pandhe Wisnu Suyantara、笹木 圭子、平島 剛、青木悠二、黒岩樹人
    • Organizer
      資源・素材学会 秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Recent development on copper flotation and hydrometallurgy2021

    • Author(s)
      Hajime Miki
    • Organizer
      1st Uzbekistan-Japan International Symposium on Green Chemistry and Sustainable Development
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海水でのCu-Mo選択浮遊選別法の開発2021

    • Author(s)
      瀬元 祐希、スヤンタラ グディパンディウィスヌ、三木 一、笹木 圭子、平島 剛、青木 悠二、田中 善之
    • Organizer
      資源・素材2021年度 春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 九州大学における銅原料中からのヒ素低減技術開発の取り組み2021

    • Author(s)
      三木 一、Suyantara Gde Pandhe Wisnu、平島 剛、沖部 奈緒子、笹木 圭子、青木 悠二、忰山 卓矢
    • Organizer
      資源・素材2021年度 春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Selective flotation for removal of impurities on copper concentrates with various redox reactions2020

    • Author(s)
      Miki Hajime、Hirajima Tsuyoshi、Suyantara Gde Pandhe Wisnu、Orii Yuta、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Organizer
      IMPC 2020:XXX International Mineral Processing Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of seawater and process water on copper-molybdenum rougher flotation in batch and pilot test2020

    • Author(s)
      Tanaka Yoshiyuki、Miki Hajime、Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Aoki Yuji、Okamoto Hideyuki
    • Organizer
      IMPC 2020:XXX International Mineral Processing Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of a sulfite reagent on floatability of chalcopyrite and enargite2020

    • Author(s)
      Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Orii Yuta、Miki Hajime、Sasaki Keiko、Kuroiwa Shigeto、Aoki Yuji
    • Organizer
      IMPC 2020:XXX International Mineral Processing Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The study of selective flotation separation of copper-molybdenite with seawater2020

    • Author(s)
      Semoto Yuki、Suyantara Gde Pandhe Wisnu、Miki Hajime、Sasaki Keiko、Hirajima Tsuyoshi、Aoki Yuji
    • Organizer
      International Symposium on Earth Science and Technology 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海水下での黄銅鉱・輝水鉛鉱選択的浮遊選別に関する研究2020

    • Author(s)
      瀬元祐希、Gde Pandhe Wisnu Suyantara、三木 一、笹木 圭子、平島剛、青木 悠二
    • Organizer
      一般社団法人資源・素材学会 2020年度 九州支部会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 含ヒ素硫化銅鉱物と非含ヒ素硫化銅鉱物の浮選分離に及ぼす捕収剤の影響2020

    • Author(s)
      折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、 平島剛、黒岩樹人、青木悠二、山根正嗣
    • Organizer
      資源・素材学会春季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 海水を用いたCu-Mo選択浮遊選別に関する研究2020

    • Author(s)
      瀬元 祐希、Gde Pandhe Wisnu Suyantara、三木 一、平島 剛、青木 悠二、 黒岩 樹人、田中 善之
    • Organizer
      資源・素材学会春季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Separation of molybdenite and chalcopyrite using various oxidation treatments2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi, Mitsuru Sawada
    • Organizer
      10th Copper International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Heating Treatment on Magnetic Properties2019

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki
    • Organizer
      10th Copper International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Selective Flotation on Chalcopyrite and Molybdenite with Various Redox Reactions2019

    • Author(s)
      Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki
    • Organizer
      The 15th Internatonal Symposium on East Asian Resources Recycling Technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki
    • Organizer
      Flotation'19 International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of seawater on bubble interactions with chalcopyrite and molybdenite surfaces2019

    • Author(s)
      Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki
    • Organizer
      Flotation'19 International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of selective flotation of copper sulfide and As containing copper minerals2019

    • Author(s)
      Yuta Orii, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Shigeto Kuroiwa, Yuji Aoki
    • Organizer
      International Symposium on Earth Science and Technology 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] 亜硫酸ナトリウム添加による硫化銅鉱物と含ヒ素銅鉱物の浮選分離に関する研究2019

    • Author(s)
      折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、平島剛、黒岩樹人、青木悠二
    • Organizer
      資源・素材学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 亜硫酸ナトリウム添加による斑銅鉱とヒ四面銅鉱の浮選分離に関する研究2019

    • Author(s)
      折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、平島剛
    • Organizer
      資源・素材学会九州支部会
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] 選鉱方法2020

    • Inventor(s)
      平島剛、三木一、G.Suyantara、笹木圭子
    • Industrial Property Rights Holder
      平島剛、三木一、G.Suyantara、笹木圭子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Acquisition Date
      2021
    • Related Report
      2021 Annual Research Report
  • [Patent(Industrial Property Rights)] 選鉱方法2019

    • Inventor(s)
      平島剛,三木一,Gde Suyanatara,瀬元祐希,笹木圭子
    • Industrial Property Rights Holder
      平島剛,三木一,Gde Suyanatara,瀬元祐希,笹木圭子
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-212060
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] 選鉱方法2019

    • Inventor(s)
      平島 剛,三木一,Gde Suyantara,折居優太,笹木圭子
    • Industrial Property Rights Holder
      平島 剛,三木一,Gde Suyantara,折居優太,笹木圭子
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-200384
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-12-25  

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