RIKEN TECHNOS Co., Ltd.
RIKEN TECHNOS Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 9010001034970, and its current status with National Tax Agency — Corporate Number Publication Site is active. The company was incorporated on 5 October 2015 and lists its registered address as Chiyoda Ward, Japan. 5 shareholders are on record for RIKEN TECHNOS Co., Ltd., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 2 October 2026.
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Shareholders
5
Five shareholders are currently on record for RIKEN TECHNOS Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing.
The largest of these is DFA International Small Cap Value Portfolio, holding 29.9% — the largest recorded stake — followed by Vanguard International Stock Index-Total Intl Stock Indx at 20.3%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| DFA International Small Cap Value Portfolio | 29.9% | National Tax Agency — Corporate Number Publication Site | |
| Vanguard International Stock Index-Total Intl Stock Indx | 20.3% | National Tax Agency — Corporate Number Publication Site | |
| Vanguard Tax Managed Fund-Vanguard Developed Markets Index Fund | 12.4% | National Tax Agency — Corporate Number Publication Site | |
| iShares International Small-Cap Equity Factor ETF | 8.6% | National Tax Agency — Corporate Number Publication Site | |
| DFA Japanese Small Company Series | 7.4% | National Tax Agency — Corporate Number Publication Site |
Officers
5
The Senior Managing Executive Officer, Senior Gm Of Sales & Marketing Division And Director of RIKEN TECHNOS Co., Ltd. currently on record is Gakuyuki Kajiyama; five officers are currently on record for RIKEN TECHNOS Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site.
The register reports 12 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at RIKEN TECHNOS Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
RIKEN TECHNOS Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 10 subsidiaries recorded beneath it across 5 jurisdictions. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 10 subsidiaries span Japan, United States, Vietnam, China, Thailand jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 10 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
RIKEN TECHNOS Co., Ltd.
Japan
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Frequently Asked Questions
Who owns RIKEN TECHNOS Co., Ltd.?
Five shareholders are currently on record for RIKEN TECHNOS Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing. The largest of these is DFA International Small Cap Value Portfolio, holding 29.9% — the largest recorded stake — followed by Vanguard International Stock Index-Total Intl Stock Indx at 20.3%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is RIKEN TECHNOS Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for RIKEN TECHNOS Co., Ltd. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does RIKEN TECHNOS Co., Ltd. have on record?
5 shareholders are shown on record for RIKEN TECHNOS Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is RIKEN TECHNOS Co., Ltd.'s company registration number?
RIKEN TECHNOS Co., Ltd.'s registration number is 9010001034970, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is RIKEN TECHNOS Co., Ltd. still an active company?
RIKEN TECHNOS Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was RIKEN TECHNOS Co., Ltd. incorporated?
RIKEN TECHNOS Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is RIKEN TECHNOS Co., Ltd.'s registered address?
The registered address on file for RIKEN TECHNOS Co., Ltd. is Chiyoda Ward, Japan.
What legal structure is RIKEN TECHNOS Co., Ltd. registered as?
RIKEN TECHNOS Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of RIKEN TECHNOS Co., Ltd.?
The Senior Managing Executive Officer, Senior Gm Of Sales & Marketing Division And Director of RIKEN TECHNOS Co., Ltd. currently on record is Gakuyuki Kajiyama; five officers are currently on record for RIKEN TECHNOS Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at RIKEN TECHNOS Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does RIKEN TECHNOS Co., Ltd. have a parent company or subsidiaries?
RIKEN TECHNOS Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 10 subsidiaries recorded beneath it across 5 jurisdictions. Those 10 subsidiaries span Japan, United States, Vietnam, China, Thailand jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 10 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to RIKEN TECHNOS Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from National Tax Agency — Corporate Number Publication Site. Zavia's monitoring API can track changes to RIKEN TECHNOS Co., Ltd.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access RIKEN TECHNOS Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Japan, so records like RIKEN TECHNOS Co., Ltd.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from National Tax Agency — Corporate Number Publication Site and was last synced on 2 October 2026.