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Development of X-ray polarimetry with bent Si crystals and CFRP substrate

Research Project

Project/Area Number 15K21679
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Astronomy
Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionJapan Aerospace EXploration Agency

Principal Investigator

Iizuka Ryo  国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 研究開発員 (50548120)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsX線天文学 / X線偏光計 / ブラッグ反射 / CFRP / シリコン結晶 / 湾曲結晶
Outline of Final Research Achievements

X-ray polarization is the key to search for the spatial structure and emission mechanism around the celestial object in the extreme condition. However, the progress for the polarimetry is considerably delayed because of technical difficulties. In order to make a breakthrough in the field of X-ray polarimetry, we have developed a Bragg-type polarimeter which large effective area and high polarization sensitivity which is specialized near the iron emission line, by using CFRP for the paraboloid of revolution and sticking a Si single crystal. As a results, we have established a method to fabricate a large paraboloid of revolution mirror by integrally molding CFRP and Si crystal. The simulation from the evaluated results found that the produced polarimeter is the optimum optical system.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (40 results)

All 2017 2016 2015

All Journal Article (16 results) (of which Int'l Joint Research: 12 results,  Peer Reviewed: 7 results,  Open Access: 16 results,  Acknowledgement Compliant: 3 results) Presentation (22 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster2016

    • Author(s)
      Aharonian, F. A., Akamatsu, H, Terada, Y. et al (Hitomi collaboration)
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 837 Issue: 1 Pages: 15-23

    • DOI

      10.3847/2041-8213/aa61fa

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Large X-ray flares on stars detected with MAXI/GSC: A universal correlation between the duration of a flare and its X-ray luminosity2016

    • Author(s)
      Y. Tsuboi, K. Yamazaki, Y. Sugawara, A. Kawagoe, S. Kaneto, R. Iizuka, T. Matsumura, S. Nakahira, M. Higa, M. Matsuoka, M. Sugizaki, Y. Ueda, N. Kawai, M. Morii, M. Serino, T. Mihara, H. Tomida, S. Ueno, H. Negoro, N. Isobe, H. Tsunemi, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 68 Issue: 5 Pages: 90-90

    • DOI

      10.1093/pasj/psw081

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Examining the angular resolution of the ASTRO-H's soft x-ray telescopes2016

    • Author(s)
      Sato, Toshiki et al.
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 2 Issue: 4 Pages: 044001-044001

    • DOI

      10.1117/1.jatis.2.4.044001

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of X-ray spectroscopic polarimetry with bent Si crystals and CFRP substrate2016

    • Author(s)
      Iizuka, Ryo; Izumiya, Takanori; Tsuboi, Yohko
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99055E-99055E

    • DOI

      10.1117/12.2231166

    • Related Report
      2016 Annual Research Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] Point spread function of ASTRO-H Soft X-ray Telescope (SXT)2016

    • Author(s)
      Hayashi, Takayuki et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99055D-99055D

    • DOI

      10.1117/12.2232007

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Ray-tracing simulation and in-orbit performance of the ASTRO-H hard x-ray telescope (HXT)2016

    • Author(s)
      Matsumoto, H., H.; Awaki, H., et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 990541-990541

    • DOI

      10.1117/12.2232135

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Reflectivity around the gold L-edges of x-ray reflector of the soft x-ray telescope onboard ASTRO-H2016

    • Author(s)
      Maeda, Y., Kikuchi, N., Kurashima, S., Ishida, M., Iizuka, R., Hayashi, T., Okajima, T., Matsumoto, H., Mitsuishi, I., Saji, S., Sato, T., Tachibana, S., Mori, H., Christensen, F., Brejnholt, N., Nitta, K., Uruga, T.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99053Z-99053Z

    • DOI

      10.1117/12.2232727

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Reflectivity around the gold M-edges of x-ray reflector of the Soft X-ray Telescope onboard ASTRO-H2016

    • Author(s)
      Kurashima, Sho et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99053Y-99053Y

    • DOI

      10.1117/12.2231173

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] The ASTRO-H SXT performance to the large off-set angles2016

    • Author(s)
      Sato, Toshiki et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99053X-99053X

    • DOI

      10.1117/12.2232175

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-Ray Spectrometer2016

    • Author(s)
      M. Leutenegger; M. Audard; K. Boyce; G. Brown; M. Chiao; M. Eckart; R. Fujimoto; A. Furuzawa; M. Guainazzi; D. Haas; J. den Herder; T. Hayashi; R. Iizuka; M. Ishida; Y. Ishisaki; R. Kelley; N. Kikuchi; C. Kilbourne; S. Koyama; et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: Volume 9905 Pages: 99053U-99053U

    • DOI

      10.1117/12.2234230

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Performance of ASTRO-H hard x-ray telescope (HXT)2016

    • Author(s)
      Awaki, H., Kunieda, H., Ishida, M., Matsumoto, H., et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 990512-990512

    • DOI

      10.1117/12.2231258

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] First peek of ASTRO-H Soft X-ray Telescope (SXT) in-orbit performance2016

    • Author(s)
      Okajima, Takashi et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 99050Z-99050Z

    • DOI

      10.1117/12.2231705

    • Related Report
      2016 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] The ASTRO-H (Hitomi) x-ray astronomy satellite2016

    • Author(s)
      Takahashi, T. et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9905 Pages: 990510-11

    • DOI

      10.1117/12.2232379

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The quiescent intracluster medium in the core of the Perseus cluster2016

    • Author(s)
      Hitomi Collaboration et al.
    • Journal Title

      Nature

      Volume: 535 Issue: 7610 Pages: 117-121

    • DOI

      10.1038/nature18627

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Upgrade of the 30-m x-ray pencil beam line at the Institute of Space and Astronautical Science2015

    • Author(s)
      Hayashi, Takayuki; Sato, Toshiki; Kikuchi, Naomichi; Kurashima, Sho; Nakaniwa, Nozomi; Sato, Takuro; Iizuka, Ryo; Maeda, Yoshitomo; Ishida, Manabu
    • Journal Title

      Journal of Astronomical Telescopes

      Volume: 1 Issue: 4 Pages: 0400441-0400447

    • DOI

      10.1117/1.jatis.1.4.044004

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An X-ray spectroscopic search for dark matter in the Perseus cluster with Suzaku2015

    • Author(s)
      Tamura et al.
    • Journal Title

      PASJ

      Volume: 67 Issue: 2 Pages: 1-16

    • DOI

      10.1093/pasj/psu156

    • NAID

      40020435063

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 広範な協力で行われた「ひとみ」衛星の地上光学観測とその成果2017

    • Author(s)
      飯塚亮, 辻本匡弘, 竹井洋, 堂谷忠靖, 石田学, 大川拓也, 生田ちさと (ISAS/JAXA), 他ひとみコラボレーションチーム
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 高角度分解能X線望遠鏡の概念検討2017

    • Author(s)
      前田良知, 飯塚亮, 石田学 (ISAS/JAXA), 林多佳由 (GSFC/NASA, 名古屋大学)
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] ひとみ (ASTRO-H) 搭載軟X線望遠鏡の Crab 観測による軌道上での性能評価2017

    • Author(s)
      倉嶋翔, 佐藤寿紀, 中庭望, 浅井龍太 (首都大学東京), 石田學, 前田良知, 飯塚亮, 上田周太朗 (ISAS), 岡島崇, 森英之, 林多佳由 (GSFC), 内田裕之、田中孝明 (京都大)、中嶋大、井上翔太 (大阪大)、森浩二 (宮崎大)、信川正順 (奈良教育大)
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 「ひとみ(ASTRO-H)」搭載軟X線望遠鏡(SXT)の軌道上での有効面積の評価2017

    • Author(s)
      中庭望, 佐藤寿紀, 倉嶋翔, 浅井龍太 (首都大学東京), 石田學, 前田良知, 飯塚亮, 上田周太朗 (ISAS), 内田裕之, 田中孝明 (京都大学), 中嶋大, 井上翔太 (大阪大学), 森浩二 (宮崎大学), 信川正順 (奈良教育大学), 岡島崇, 森英之, 林多佳由 (GSFC)
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線天文衛星「ひとみ (ASTRO-H)」搭載硬 X 線望遠鏡 (HXT) の軌道上での性能評価 II2017

    • Author(s)
      粟木久光 (愛媛大), 國枝秀世, 松本浩典, 石橋和紀, 田村啓輔, 田原譲, 三石郁之 (名古屋大), 古澤彰浩 (藤田保健衛生大), 宮澤拓也 (沖縄科技大), 岡島崇, 森英之, 林多佳由 (NASA/GSFC), 石田学, 前田良知, 飯塚亮 (ISAS/JAXA), 幅良統 (愛知教育大), 山内茂雄 (奈良女子大), 杉田聡司 (東工大), 吉田鉄生 (愛媛大)他「ひとみ」HXT チーム
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線フレアの可視光追観測システムの構築2017

    • Author(s)
      河合広樹, 坪井陽子, 山田宗次郎 (中央大学), 飯塚亮, 菅原泰晴 (JAXA/ISAS)
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] X-ray study of stellar flares with MAXI/GSC: A universal correlation between the duration of a flare and its X-ray luminosity2017

    • Author(s)
      Yohko Tsuboi, Kyohei Yamazaki, Yasuharu Sugawara, Atsushi Kawagoe, Soichiro kaneto, Ryo Iizuka (Chuo University), and the MAXI Team
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 「ひとみ」によるペルセウス座銀河団のガス速度測定: (1) 速度構造2017

    • Author(s)
      一戸悠人 (首都大), 飯塚亮 (ISAS), 井上翔太 (大阪大), 上田周太朗 (ISAS), 太田直美 (奈良女子大), 北山哲 (東邦大), 佐藤浩介 (東京理科大), 田中桂悟 (金沢大), 田村隆幸 (ISAS), 辻本匡弘 (ISAS), 藤本龍一 (金沢大), 前田良知 (ISAS), および「ひとみ」コラボレーション
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 「ひとみ」によるペルセウス座銀河団のガス速度測定: (2) 輝線の非ガウス性 とイオン温度への制限2017

    • Author(s)
      上田周太朗 (ISAS), 飯塚亮 (ISAS), 一戸悠人 (首都大), 井上翔太 (大阪大), 太田直美 (奈良女子大), 北山哲 (東邦大), 佐藤浩介 (東京理科大), 田中桂悟 (金沢大), 田村隆幸 (ISAS), 辻本匡弘 (ISAS), 藤本龍一 (金沢大), 前田良知 (ISAS), および「ひとみ」コラボレーション
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線天文衛星「ひとみ (ASTRO-H)」:打ち上げとその後2016

    • Author(s)
      高橋忠幸 (JAXA, 宇宙科学研究所), ほか「ひとみ」衛星チーム
    • Organizer
      日本天文学会2017年春季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線天文衛星「ひとみ (ASTRO-H)」搭載軟 X 線望遠鏡 (SXT) の軌道上での性能評価2016

    • Author(s)
      前田良知, 石田学, 飯塚亮 (ISAS/JAXA), Peter Serlemitsos, Yang Soong, Takashi Okajima, Hideyuki Mori(NASA/GSFC), 林多佳由, 三石郁之, 松本浩典, 石橋和紀, 桜井郁也, 田村啓輔, 田原譲, 國枝秀世 (名古屋大), 粟木久光 (愛媛大), 古澤彰浩 (藤田保健衛生大), 宮澤拓也 (沖縄科技大), 杉田聡司 (東工大)、他「ひとみ」SXT チーム
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 「ひとみ (ASTRO-H)」搭載軟 X 線望遠鏡に用いる反射鏡の反射率測定2016

    • Author(s)
      中庭望, 佐藤寿紀, 菊地直道, 倉嶋翔 (首都大学東京), 飯塚亮, 前田良知, 石田學 (ISAS), 岡島崇, 森英之, 林多佳由 (GSFC), 他 the ASTRO-H SXT team
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線天文衛星「ひとみ (ASTRO-H)」搭載硬 X 線望遠鏡 (HXT) の軌道上 での性能評価2016

    • Author(s)
      粟木久光 (愛媛大), 國枝秀世, 松本浩典, 石橋和紀, 田村啓輔, 田原譲, 三石郁之 (名古屋大), 古澤彰浩 (藤田保健衛生大), 宮澤拓也 (沖縄科技大), 岡島崇, 森英之, 林多佳由 (NASA/GSFC), 石田学, 前田良知, 飯塚亮 (ISAS/JAXA), 幅良統 (愛知教育大), 山内茂雄 (奈良女子大), 杉田聡司 (東工大), 他「ひとみ」HXT チーム
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 「ひとみ (ASTRO-H)」搭載 アラインメントモニタシステム (AMS) の軌道上性能評価2016

    • Author(s)
      飯塚亮, 石田学, 上野史郎, 河野太郎, 石村康生 (ISAS/JAXA), 湯浅孝行 (理研), Koujelev Alexandre, Moroso Franco (ASC/CSA), Guibert Martin, Stephane Gagnon, Timothy Elgin (Neptec), Gallo Luigi C. (Saint Mary’s University), 他「ひとみ」AMS チーム
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線天文衛星「ひとみ (ASTRO-H)」塔載機器の解析ソフトウェアの開発2016

    • Author(s)
      寺田幸功 (埼玉大学)ほか、「ひとみ」チーム
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] 湾曲結晶鏡のX線分光実験及び評価2016

    • Author(s)
      鈴木涼太, 坪井陽子 (中央大学), 飯塚亮 (宇宙科学研究所), 泉谷喬則, 佐々木亮, 白井沙季 (中央大学)
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Development of x-ray spectroscopic polarimetry with bent Si crystals and CFRP substrate2016

    • Author(s)
      Ryo Iizuka, Institute of Space and Astronautical Science (Japan); Takanori Izumiya, Yohko Tsuboi, Chuo Univ. (Japan)
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation
    • Place of Presentation
      Edinburgh International Conference Centre
    • Year and Date
      2016-06-26
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 湾曲結晶を用いたX線偏光計の開発2016

    • Author(s)
      飯塚亮 (ISAS/JAXA), 泉谷喬則, 坪井陽子 (中央大学)
    • Organizer
      日本天文学会2016年春季年会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2016-03-15
    • Related Report
      2015 Research-status Report
  • [Presentation] ASTRO-H SXT用反射鏡の金のL吸収端付近の反射率測定と応答関数構築用の原子散乱因子2016

    • Author(s)
      菊地直道, 佐藤寿紀 , 倉嶋翔 (首都大学東京), 石田學, 前田良知, 飯塚亮 (ISAS/JAXA), 林多佳由, 岡島崇 (NASA/GSFC), 佐治重孝, 立花献, (名古屋大学), 宇留賀朋哉, 新田清文 (JASRI/SPring- 8), ほか measurements collaborations
    • Organizer
      日本天文学会2016年春季年会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2016-03-15
    • Related Report
      2015 Research-status Report
  • [Presentation] ASTRO-H搭載軟X線望遠鏡の迷光の較正2016

    • Author(s)
      倉嶋翔, 佐藤寿紀, 菊地直道, 中庭望 (首都大学東京), 飯塚亮, 前田良知, 石田學 (ISAS), 岡島崇, 森英之, 林多佳由 (GSFC), 他 the ASTRO-H SXT team
    • Organizer
      日本天文学会2016年春季年会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2016-03-15
    • Related Report
      2015 Research-status Report
  • [Presentation] Ray-tracing による ASTRO-H 搭載軟 X 線望遠鏡の結像性能の再現2015

    • Author(s)
      佐藤寿紀 (首都大学東京), 飯塚亮, 林多佳由, 前田良知, 石田學 (ISAS), 古澤彰浩 (名古屋大), 森英之 (GSFC), 菊地直道, 倉島翔, 中庭望 (首都大学東京), 岡島崇,Peter J. Serlemitosos,Yang Soong,Lorella Angelini,Tahir Yaqoob(GSFC), 他 the ASTRO-H SXT team
    • Organizer
      日本天文学会2015年秋季年会
    • Place of Presentation
      甲南大学
    • Year and Date
      2015-09-09
    • Related Report
      2015 Research-status Report
  • [Presentation] ASTRO-H SXT 用反射鏡の M 吸収端付近の反射率測定2015

    • Author(s)
      倉嶋翔 (首都大学東京), 古澤彰浩 (名古屋大学), 佐藤寿紀, 菊地直道 (首都大学東京), 前田良知, 石田學, 飯塚亮 (ISAS), 岡島崇, 森英之 (NASA/GSFC), 松本浩典, 田村啓輔, 石橋和紀, 林多佳 由, 宮澤拓也, 岩瀬敏博, 前島将人, 吉川駿 (名古屋大学)
    • Organizer
      日本天文学会2015年秋季年会
    • Place of Presentation
      甲南大学
    • Year and Date
      2015-09-09
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] X線分光偏光計2016

    • Inventor(s)
      飯塚亮、坪井陽子
    • Industrial Property Rights Holder
      飯塚亮、坪井陽子
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-048851
    • Filing Date
      2016-03-11
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] 望遠鏡システム2016

    • Inventor(s)
      前田良知、石田学、飯塚亮、林多佳由
    • Industrial Property Rights Holder
      前田良知、石田学、飯塚亮、林多佳由
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-078208
    • Filing Date
      2016-04-08
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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