The red node is Hiroko. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Dashed links are historical or inferred. Click any node to explore.
Person
Dr Hiroko Okinaga
Dr Hiroko Okinaga is a trustee of Teikyo Foundation (UK) and Teikyo University of Japan in Durham and a director of 3 companies. Source: Companies House and Charity Commission records.
Director at Teikyo Foundation (UK) · Director at Teikyo University of Japan in Durham
- 5 current roles
- Served alongside 33 people
Official record Companies House and Charity Commission · updated 25th October 2026
Roles
5 roles across 5 organisationsCurrent roles (5)
-
Teikyo Foundation (UK)Director · 2007-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Teikyo Foundation (UK)
- Role
- Director
- Appointed
- 2007-04-28
- Record reference
- Company 02540502
Current -
Teikyo University of Japan in DurhamDirector · 2007-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Teikyo University of Japan in Durham
- Role
- Director
- Appointed
- 2007-04-28
- Record reference
- Company 02259457
Current -
Teikyo Services (U.K.) LimitedDirector · 2007-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Teikyo Services (U.K.) Limited
- Role
- Director
- Appointed
- 2007-04-28
- Record reference
- Company 02262739
Current -
Teikyo Foundation (UK)Trustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Teikyo Foundation (UK)
- Role
- Trustee
- Record reference
- Charity 1001232
Current -
Teikyo University of Japan in DurhamTrustee · Current
Official record · Charity Commission
- Source
- Charity Commission
- Organisation
- Teikyo University of Japan in Durham
- Role
- Trustee
- Record reference
- Charity 1000091
Current
Charity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.
People Hiroko has served alongside
33 people across 5 organisationsBased on overlapping official board records. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.
Teikyo Services (U.K.) Limited 30 people · 1993-present
- Takumi HiragaServing together now · since 2025
- Yukinori OkabeServing together now · since 2025
- Atsushi NishikawaServing together now · since 2024 Likely the same person
- Yoshihito OkinagaServing together now · since 2007
- Yoichiro Hirayama2024-2025
- Atsushi Isihara2022-2024
- Eishu Kosuge2022-2025
- Yuichi Kono2020-2024
- Kenichi Nakamura2020-2022
- Kazushige Nakajima2019-2022
- Kenji Horikawa2018-2020
- Tomoki Nakatani2017-2019
- Dr Takuji Oda2015-2026
- Masao Sasayama2014-2017
- Masao Imaseki2014-2020
- Fuminori Masubuchi2012-2014
- Yasuo Asada2011-2014
- Junichi Murai2010-2018
- Kunihiro Sawada2010-2011
- Noboru Nakayama2008-2012
- Etsuko Okinaga2007-2015 dates incomplete
- John Frederick Thomas2007 dates incomplete
- Mitsushi Okada2007-2026
- Naoki Muramatsu2007-2010
- Shoichi Okinaga2007-2008 dates incomplete
- Yoshio Inayama2007-2010
- Yuzo Hirono2007-2008
- George Wright2003-2007 dates incomplete
- Hideo Sekiguchi1997-2007 dates incomplete
- Yoshisabuco Mogi1993-2007 dates incomplete
Teikyo University of Japan in Durham 23 people · 1993-present
- Takumi HiragaServing together now · since 2025
- Atsushi NishikawaServing together now · since 2024 Likely the same person
- Yoshihito OkinagaServing together now · since 2007
- Yoichiro Hirayama2024-2025
- Atsushi Isihara2022-2024
- Yuichi Kono2020-2024
- Kazushige Nakajima2019-2022
- Kenji Horikawa2018-2020
- Tomoki Nakatani2017-2019
- Masao Sasayama2014-2017
- Dr Takuji Oda2013-2026
- Yasuo Asada2011-2014
- Junichi Murai2010-2018
- Kunihiro Sawada2010-2011
- Yoshio Inayama2007-2010
- John Frederick Thomas2007 dates incomplete
- John Frederick Thomas2007 dates incomplete
- Naoki Muramatsu2007-2010
- Shoichi Okinaga2007-2008 dates incomplete
- Tadashi Miyazaki2007-2013
- Yuji Yoshida2007-2026
- George Wright2003-2007 dates incomplete
- Hideo Sekiguchi1997-2007 dates incomplete
- Yoshisabuco Mogi1993-2007 dates incomplete
Teikyo Foundation (UK) 23 people · 1993-present
- Takumi HiragaServing together now · since 2026
- Atsushi NishikawaServing together now · since 2024 Likely the same person
- Yoshihito OkinagaServing together now · since 2007
- Yoichiro Hirayama2024-2025
- Atsushi Isihara2022-2024
- Yuichi Kono2020-2024
- Kazushige Nakajima2019-2022
- Kenji Horikawa2018-2020
- Tomoki Nakatani2017-2019
- Yuji Yoshida2015-2026
- Masao Sasayama2014-2017
- Yasuo Asada2011-2014
- Junichi Murai2010-2018
- Kunihiro Sawada2010-2011
- Yoshio Inayama2007-2010
- Etsuko Okinaga2007-2015 dates incomplete
- John Frederick Thomas2007 dates incomplete
- Junji Sasahara2007
- Naoki Muramatsu2007-2010
- Shoichi Okinaga2007-2008 dates incomplete
- George Wright2003-2007 dates incomplete
- Hideo Sekiguchi1997-2007 dates incomplete
- Yoshisabuco Mogi1993-2007 dates incomplete
Teikyo University of Japan in Durham 5 people · Current
- Atsushi NishikawaServing together now Likely the same person
- Dr Takuji OdaServing together now
- Yoshihito OkinagaServing together now
- Yuichi KonoServing together now
- Yuji YoshidaServing together now
Teikyo Foundation (UK) 3 people · Current
- Atsushi NishikawaServing together now Likely the same person
- Yoshihito OkinagaServing together now
- Yuji YoshidaServing together now
People marked “Likely the same person” are reached through a record that is a likely relationship to Hiroko: there is sufficient evidence to suggest it concerns the same individual, but it is not established as confirmed.
Sources
- Companies House
- Officer appointments and resignations.
- Charity Commission
- Register of Charities: current trustees and appointment dates.
- Edition
- Register edition compiled 25th October 2026
- Identity
- Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matched
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