General Information
How to Search Research Projects
How to Search Researchers
How to Search using Search Bar of Browsers
General Information
System Requirements
Use one of the browsers below.
- Internet Explorer 6-8
- Mozilla Firefox 3.x
- Safari 4, 5
- Chrome 6, 7
Quick Search
1.Language Switch
Click here for switching language mode.
Language mode only affects on guidance messages, but not limits search target projects / researchers.
Contents of a document are shown in the original language by which the document was written.
2.System Messages
Click for details.
3.Search Condition Entries
When two or more conditions are specified, conjunction ; that is, projects / researchers matched with all conditions are shown.
Alphabetical and numeric characters are matched on a word-by-word basis. Japanese characters are done on a character-by-character basis. Click here for details.
Strings separated by spaces are recognized as a conjuctional query. Word orders are ignored.
When syntax errors in your queries are detected, error messages are shown above the form (See the example below)
4.Free Word Entry
Query syntax is the same as the entries for advanced search. NOT, OR, prefix, postfix, exact-matching, and phrasal operands are available.
5.Advanced Search Disclosure
Switch for quick / advanced search.
6.Search Research Projects
Click here to search research projects.
7.Search Researchers
Click here to search researchers.
Advanced Search
1.Clear Conditions
Click here to clear entries and reset choices, except for the free word entry.
2.Entries for Research Fields, Categories and Institutions
Three methods are available for entering the research fields, categories and institutions:
- Enter names into the entries.
- Choose names from the lists.
- Choose names in the search results or project / researcher details.
3.Entry for Keywords
Matched on the keywords described in the project documents.
4.Entry for Researcher Name
Without checking "Restrict to principal investigators only", matched on the names of principal investigators and collaborators.
It is available to exact-match with full-, first- or last-name. Many researcher records can be also retrieved by readings in katakana and alphabetic notations.
5.Entries for Research Project Number and Researcher Number
Researcher Number specified in a project search restricts the results to projects which the researcher took part in.
Research Project Number specified in a researcher search restricts the results to researchers who took part in the project.
6.Entry for Project Year
You can specify only "not earlier than" or "not later than".
"Restrict to project start year only" restricts the results to projects which started in the specified range.
7.Entries for Total Budget Amount
You can specify only "not less than" or "not much than".
8.Entry for Publications
Matched on the publication titles, authors, published years and journal titles.
9.Chooser for Domestic/Foreign Industrial Property
Because no distinctive information in the documents was written before FY2009, choose "None specified" for searching projects before FY2009 and for searching researchers who took part in those projects.
10.Entries for Right Application / Issue Date
8-digit numbers are interpreted as year+month+day. 6 digits as year+month, 4 digits as year.
You can specify only "not earlier than" or "not later than".
To search the projects which applied some industrial property in the specified year, enter the same year to "from" and "to" entries.
11.Entry for Project Latest Year
You can specify only "not earlier than" or "not later than".
Research Fields List
Research Fields List with System level.
1. Field List for Each Period
Research field list is updated at intervals of several years.
If you know the year when the project was done, click the tab of the year and choose the field name you wanted.
"Unified Fields" tab contains all names of the research fields shown in the documents.
After click the field name, the search form appears again. The field name you specified was appended to the entry for research field.
Research fields form a hierarchy for each period. When a field containing some sub fields are selected, all the sub field names are appended.
Research Categories List
1.Research Categories Chooser
Ongoing and past research categories are shown.
2.Research Category Links
After click the category name, the search form appears again. The category name you specified was appended to the entry for research category.
Research Institutions List
"Filter by institution type" Dropdown Menu
1.Research Institution Links
After click the institution name, the search form appears again. The institution name you specified was appended to the entry for research institution.
2.Filters
Name / type filters are available.
How to Search Research Projects
Search Results
1. Pagination
When the number of retrieved projects exceeds the specified "results per page" count, the result list is divided into pages.
2.Project Name Links
Click here for details of the project.
3.Researcher Name Links
Click here for details of the researcher.
4.Field / Category / Institution Links
Click here for refining the search conditions. The specified field / category / institution name is put into the corresponding entry, and then the search result will be updated.
Previous condition (if existed) will be overrode with the specified name.
5.Related Keywords
Click here for refining the search conditions. The specified keyword is put into the "Keywords" entry, and then the search result will be updated.
6.Export Functions
Select data format and click "Go" button to export whole search results to a local file.
7.Results-per-Page Modifier
Select one and click "Go" button, and then the search results will be updated.
8.Sort Order Modifier
Select one and click "Go" button, and then the search results will be updated.
Details of a Research Project
1.Name(s) of the Principal Investigator(s)
Click here for details of the researcher.
2.Names of the Other Members
Click here for details of the researcher.
3.Documents of the Project
Click here for individual documents.
"PDF" indicates that the original document is available as PDF. "Summary" indicates that the document is available as summary HTML text.
4.Basic Information
Click the research field name link to search research projects of the specified field.
5.Keywords
Click the keyword link to search research projects which are relevant to the specified keyword.
Documents of a Research Project
1.Type and Year of the Document
The type and year of the document are shown.
2.Publications
Publications contained in the other NII archive services have links to those corresponding pages.
How to Search Researchers
Results of Researcher Search
1.Researcher Name Links
Click here for details of the researcher.
2.Latest Affiliation Links and Research Field Links
Click here for refining the search conditions. The specified affiliation / field name is put into the corresponding entry, and then the search result will be updated.
3.Export Functions
Select data format and click "Go" button to export whole search results to a local file.
4.Results-per-Page Modifier
Select one and click "Go" button, and then the search results will be updated.
5.Sort Order Modifier
Select one and click "Go" button, and then the search results will be updated.
Details of a Researcher
1.Researcher Resolver ID Link
Click here for referring the researcher to the NII Researcher Resolver.
2.Related Research Fields
Click here to search researchers who are relevant to the specified field.
3.Keywords
Click here to search researchers who are relevant to the specified keyword.
4.Research Projects
Research projects to which the researcher contributed.
"Head" indicates that the researcher is (or was) the principal investigator of the project.
Click the project title for details of the project.
Click the name of principal investigator for details of the researcher.
Click the name of research field / category / institution to search researchers who are relevant to the specific conditions.
5.Export Functions
Select data format and click "Go" button to export whole search results to a local file.
CSV and XML are available.
6.Sort Order Modifier
Select one and click "Go" button, and then the search results will be updated.
7.Collaborators
Researchers in the research projects listed in this page.
Click here for the details of the researcher.
How to Search using Search Bar of Browsers
KAKEN provides the OpenSearch interface to accept search request via the browser's search bar.
Notice: the following explanation is for the Internet Explorer 7.
Add to Search Bar
Show the start page of the KAKEN, and the background color of ▼ mark in the browser search bar will turn into orange or blue.
Click the ▼ mark, select "Add Search Providers" and click "KAKEN - Research Project Search" or "KAKEN - Researcher Search".
Search Projects / Researchers
Click the ▼ mark and select "KAKEN|課題"
Enter the query, and hit the Enter key or click the loupe button.
The search results are shown.
Appendix
Query Syntax
Tokenizing & Normalization Rule
Word-oriented
The continuous characters of the same type are recognized as a "token".
- English Alphabets and Number Symbols
- Cases & widths are ignored.
- non English Alphabets
- Cases & widths are ignored with some exceptions.
- Other Symbols
- Widths are ignored with some exceptions.
Character-oriented
- Hiragana, Katakana, Kanji
Hangeul - Widths are ignored of Katakana.
Conjunctive Search Expressions
Strings separated with a space (or more) are treated as "conjunctive search" expression. Word orders are ignored.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| Computer Science | computer science | ○ | ||
| science computer | ○ | |||
| science of computer | ○ | |||
| computer-science | ○ | |||
| computer sciences | "Science" and "sciences" don't match. |
The upper-cased "AND" and the operator "&" between the strings explicitly indicates the conjunctive search condition.
Notice: "+" before the strings is not interpreted as a conjunctive operator.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| +computer | +computer | ○ | ||
| #computer | "+" and "#" are unmatched. | |||
| computer | "+" is missing. |
Phrasal Expression
Phrasal expression that is enclosed in double quotation marks can be used for strictly scanning the word order.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| "Computer Science" | computer science | ○ | ||
| science computer | Word orders are different. | |||
| science of computer | word. | |||
| computer-science | "-" is a **** word. |
Continuous two double quotation marks in phrasal expressions means
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| "a""b" | a"b | ○ | ||
| a""b | ||||
| """" | " | ○ |
Prefix Match
Strings + "*" pattern means a prefix match, that is, all words beginning with the specified strings are matched.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| mak* | mak | ○ | ||
| make | ○ | |||
| making | ○ | |||
| made | ||||
| remake | Prefix is different from the query. |
"/" + strings pattern also means prefix search
| Example | Query |
|---|---|
| /mak |
Suffix Match
"*" + strings pattern means a suffix match, that is, all words ends with the specified strings are matched.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| *mak | mak | ○ | ||
| remake | ○ | |||
| making | Suffix is different from the query. |
Other Substring Matching
Substring matching other than prefix / suffix is not supported.
Exact Match for Researcher Names
"/" + researcher's name (full-, first- or last-name) + "/" pattern means an exact match. It is useful to retrieve not "山田一郎" but "山田一".
| Examples | Queries | Records | Match |
|---|---|---|---|
| /山田一/ | 山田一 | ○ | |
| 山田一郎 | |||
| /一/ | 山田一 | ○ | |
| 山田一郎 |
It is not supported to look up only the lastname.
Disjunctive Search Expressions
The upper-cased "OR" and the operator "|" between the strings indicates "disjunctive search".
| Examples | Queries | Records | Match |
|---|---|---|---|
| Computer OR Science | computer science | ○ | |
| science | ○ | ||
| computer | ○ |
Unlike the general logical operations, OR (|) operator is prior to AND (&).
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| red AND blue OR green | red green | ○ | Interpreted as "red AND (blue OR green)" | |
| green |
Negation Operator
An upper-cased "NOT" + a space (or more) before strings is treated as a negation operator. Records containing the words are eliminated from the result set.
| Examples | Queries | Records | Match | |
|---|---|---|---|---|
| gnu NOT unix | gnu | ○ | ||
| gnu unix | ||||
| linux | not containing "gnu" |
"-" before strings is also treated as a negation operator.
| Example | Query |
|---|---|
| gnu -unix |
Complex Formula
Grouping with "(" and ")" can be used for modify the operator precedence.
| Examples | Queries | Records | Match |
|---|---|---|---|
| (red AND blue) OR green | green | ○ | |
| (山 AND 川) OR (風 AND 谷) | 川と山 | ○ |
Query Format for the OpenSearch
Basic Rules
All parameters including query strings must be in the UTF-8 character code and be URL-encoded.
Research Project Search
Here is the query format for research project search.
<Url type="application/rss+xml"
indexOffset="1" pageOffset="1"
template="http://kaken.nii.ac.jp/opensearchk.cgi?q0={searchTerms}&
q1={kakenos:fieldName?}&
q2={kakenos:categoryName?}&
q3={kakenos:institutionName?}&
q4={kakenos:projectTitle?}&
q5={kakenos:projectNumber?}&
q6={kakenos:projectYearFrom?}&
q7={kakenos:projectYearTo?}&
q8={kakenos:projectFirstYearOnly?}&
q9={kakenos:projectKeywords?}&
q10={kakenos:minimumAwardedAmountToDate?}&
q11={kakenos:maximumAwardedAmountToDate?}&
q12={kakenos:researcherName?}&
q13={kakenos:researcherAffiliation?}&
q14={kakenos:principalInvestigatorOnly?}&
q15={kakenos:researcherNumber?}&
q16={kakenos:publication?}&
q17={kakenos:patentTitle?}&
q18={kakenos:patentNumber?}&
q19={kakenos:patentType?}&
q20={kakenos:patentInventor?}&
q21={kakenos:patentAsignee?}&
q22={kakenos:patentDomesticOrForeign?}&
q23={kakenos:patentApplicationDateFrom?}&
q24={kakenos:patentAppliactionDateTo?}&
q25={kakenos:patentIssueDateFrom?}&
q26={kakenos:patentIssueDateTo?}&
q27={kakenos:projectLatestYearFrom?}&
q28={kakenos:projectLatestYearTo?}&
order={kakenos:sortType?}&
count={count?}&
from={startIndex?}" />
| Parameter names | Target |
|---|---|
| kakenos:fieldName | Research field |
| kakens:categoryName | Research category |
| kakenos:institutionName | Research institution |
| kakenos:projectTitle | Research project title |
| kakenos:projectNumber | Research project number |
| kakenos:projectYearFrom | Project year |
| kakenos:projectYearTo | |
| kakenos:projectFirstYearOnly | 1 for "first year only". |
| kakenos:projectLatestYearFrom | Project Latest Year |
| kakenos:projectLatestYearTo | |
| kakenos:projectKeywords | Keywords |
| kakenos:minimumAwardedAmountToDate | Total budget amount |
| kakenos:maximumAwardedAmountToDate | |
| kakenos:researcherName | Researcher name |
| kakenos:principalInvestigatorOnly | 1 for principal investigator only. |
| kakenos:researcherNumber | Researcher number |
| kakenos:researcherAffiliation | Researcher affiliation |
| kakenos:publication | Publications |
| kakenos:patentTitle | Industrial property title |
| kakenos:patentNumber | Industrial property number |
| kakenos:patentType | 1 for patent, 2 for utility model right, 3 for design right. |
| kakenos:patentInventor | Industrial property inventor |
| kakenos:patentAsignee | Industrial property right assignee |
| kakenos:patentDomesticOrForeign | 1 for domestic, 2 for foreign. |
| kakenos:patentApplicationDateFrom | Right application date (4, 6 or 8-digits) |
| kakenos:patentAppliactionDateTo | |
| kakenos:patentIssueDateFrom | Right date (4, 6 or 8-digits) |
| kakenos:patentIssueDateTo | |
| kakenos:sortType | 0 for project start year (dsc.). |
| 1 for project start year (asc.). | |
| 2 for total budget amount (dsc.). | |
| 3 for total budget amount (asc.). |
Researcher Search
Here is the query format for researcher search.
<Url
type="application/rss+xml"
indexOffset="1" pageOffset="1"
template="http://kaken.nii.ac.jp/opensearchr.cgi?q0={searchTerms}&
q1={kakenos:fieldName?}&
q2={kakenos:categoryName?}&
q3={kakenos:institutionName?}&
q4={kakenos:projectTitle?}&
q5={kakenos:projectNumber?}&
q6={kakenos:projectYearFrom?}&
q7={kakenos:projectYearTo?}&
q8={kakenos:projectFirstYearOnly?}&
q9={kakenos:projectKeywords?}&
q10={kakenos:minimumAwardedAmountToDate?}&
q11={kakenos:maximumAwardedAmountToDate?}&
q12={kakenos:researcherName?}&
q13={kakenos:researcherAffiliation?}&
q14={kakenos:principalInvestigatorOnly?}&
q15={kakenos:researcherNumber?}&
q16={kakenos:publication?}&
q17={kakenos:patentTitle?}&
q18={kakenos:patentNumber?}&
q19={kakenos:patentType?}&
q20={kakenos:patentInventor?}&
q21={kakenos:patentAsignee?}&
q22={kakenos:patentDomesticOrForeign?}&
q23={kakenos:patentApplicationDateFrom?}&
q24={kakenos:patentAppliactionDateTo?}&
q25={kakenos:patentIssueDateFrom?}&
q26={kakenos:patentIssueDateTo?}&
q27={kakenos:projectLatestYearFrom?}&
q28={kakenos:projectLatestYearTo?}&
order={kakenos:sortType?}&
count={count?}&
from={startIndex?}" />
| Parameter names | Target |
|---|---|
| kakenos:fieldName | Research field |
| kakens:categoryName | Research category |
| kakenos:institutionName | Research institution |
| kakenos:projectTitle | Research project title |
| kakenos:projectNumber | Research project number |
| kakenos:projectYearFrom | Project year |
| kakenos:projectYearTo | |
| kakenos:projectFirstYearOnly | 1 for "first year only". |
| kakenos:projectLatestYearFrom | Project Latest Year |
| kakenos:projectLatestYearTo | |
| kakenos:projectKeywords | Keywords |
| kakenos:minimumAwardedAmountToDate | Total budget amount |
| kakenos:maximumAwardedAmountToDate | |
| kakenos:researcherName | Researcher name |
| kakenos:principalInvestigatorOnly | 1 for principal investigator only. |
| kakenos:researcherNumber | Researcher number |
| kakenos:researcherAffiliation | Researcher affiliation |
| kakenos:publication | Publications |
| kakenos:patentTitle | Industrial property title |
| kakenos:patentNumber | Industrial property number |
| kakenos:patentType | 1 for patent, 2 for utility model right, 3 for design right. |
| kakenos:patentInventor | Industrial property inventor |
| kakenos:patentAsignee | Industrial property right assignee |
| kakenos:patentDomesticOrForeign | 1 for domestic, 2 for foreign. |
| kakenos:patentApplicationDateFrom | Right application date (4, 6 or 8-digits) |
| kakenos:patentAppliactionDateTo | |
| kakenos:patentIssueDateFrom | Right date (4, 6 or 8-digits) |
| kakenos:patentIssueDateTo | |
| kakenos:sortType | 0 for project start year (dsc.). |
| 1 for kana order. | |
| 2 for alphabetic order. | |
| 3 for kanji code order. | |
| 4 for total budget amount (dsc.). | |
| 5 for total budget amount (asc.). |