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Koichi Takemasa

Politician

Koichi Takemasa is a politically exposed person. They are a person of interest by virtue of their position and the influence they may hold. They have not been found on international sanctions lists.

Type	Person				[sources]
Name	AKoichi Takemasa · Koichi Takemasa · TAKEMASA Koichi · Коити Такэмаса · কোইচি তাকেমাসা · 1 more...				[sources]
Alias	Koichi Takemasa · Такэмаса, Коити · たけまさこういち · 武正公一君 · 武正公一				[sources]
Birth date	1961-03-23				[sources]
Place of birth	Shimizu, Shizuoka · Shimizu-ku				[sources]
Gender	male				[sources]
Nationality	Japan				[sources]
Country	Japan				[sources]
Citizenship	Japan				[sources]
Classification	National government (unknown status)				[sources]
First name	Kōichi				[sources]
Last name	Takemasa				[sources]
Political association	Democratic Party of Japan · The Constitutional Democratic Party of Japan and the Independent				[sources]
Website	takemasa-k.jp · twitter.com				[sources]
Wikidata ID	Q6426239				[sources]
Position	Shūgiin (member, 2014-2017) · member of the House of Representatives of Japan · member of the Saitama Prefectural Assembly				[sources]
Education	Faculty of Law, Keio University · Keio University				[sources]
Source link	www.shugiin.go.jp				[sources]
Last change	2026-02-12	Last processed	2026-02-15	First seen	2019-05-21

Descriptions

Chair, Commission on the Constitution, House of Representatives

— Japanese House of Representatives Members, 2026-02-02

Japanese politician

— Wikidata non-official source, 2023-07-18

Relationships

Positions held
Position occupied	Start date	End date
Member of the Shūgiin	-	-
member of the House of Representatives of Japan	-	-

Data sources

Wikidata Politically Exposed Persons271,230

Profiles of politically exposed persons from Wikidata, the structured data version of Wikipedia.

Global · Wikidata · non-official source

Japanese House of Representatives Members440

Current members of the Japanese House of Representatives (Shūgiin), the lower house of the National Diet of Japan.

Japan · Shūgiin

Wikidata Persons in Relevant Categories339,122

Category-based imports from Wikidata, the structured data version of Wikipedia.

Global · Wikidata · non-official source

MySociety's EveryPolitician Legislators40,644

All members of national legislatures in the world, collected from hundreds of government web sites and consolidated via Wikidata.

Global · MySociety · non-official source

External databases

The record has been enriched with data from the following external databases:

PEP position annotations by OpenSanctions503,469

Entity categorisation decisions by the OpenSanctions team.

External dataset · OpenSanctions · non-official source

Wikidata333,870

Wikidata is the structured data project of the Wikipedia community, providing fact-based information edited by humans and machines

External dataset · Global · Wikidata · non-official source

Source data IDs: evpo-c76d9de5-0800-407e-8546-52e7af8fbb6a · jp-shu-1954645f45188fafe59f1cbdb2ae42abd9002f71

For experts: raw data explorer

Using the API

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Equivalent request

GET https://api.opensanctions.org/entities/Q6426239?nested=true

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Factsheet Descriptions Relationships Data sources

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