Tokyo Ohka Kogyo (TOK)
Photoresist pioneer strong in EUV chemistry
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Full file coming soon. Tokyo Ohka Kogyo (TOK)'s links, deals and figures below are what the graph holds today.Not collected yet: 360, Money, Investors, Market share, People and hiring, Legal, News and events, Earnings calls. Anthropic is the first complete company file (people, investors, legal, hiring, birth to now); other companies follow one at a time. Open Anthropic's file
Overview
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L5 Materials · Materials · TSE:4186 · Japan
Tokyo Ohka Kogyo (TOK)
Photoresist pioneer strong in EUV chemistry
- Links
- 1
- Deals from filings
- 0
- Exposed if it fails
- 1
- 3 within 2 steps
- It depends on
- 0
- 0 within 2 steps
No company file yet: revenue, customers and other figures appear here once they are taken from its filings.
What it is
Tokyo Ohka Kogyo (TOK) is one of the original photoresist inventors and a top global supplier of advanced resists, including EUV materials. It operates joint development and manufacturing close to leading foundries and is a core node in Japan's resist oligopoly. TOK's leading-edge resist supply is a dependency for advanced logic production worldwide.
Key facts
from its map entry- Products
- EUV/ArF photoresists, developers
- Position
- Top-tier global resist share
- Customers
- TSMC, Samsung, Intel
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Connections1 link
Pulled 28 Oct 2026 · AI Systems Map links
Who depends on it
1Compare two: what Tokyo Ohka Kogyo (TOK) shares with another entity
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Data sources2 sources
| Source | Feeds | Data dated | Pulled | Pulled again | Status |
|---|---|---|---|---|---|
| Market quote (Yahoo Finance, unofficial) | 360 | 30 Oct 2026 | 30 Oct 2026, 12:46 EDT | daily | fresh |
| AI Systems Map links1 links; built July 2026, deals re-checked against filings 27 to 28 Oct 2026 | Connections | · | 28 Oct 2026 | when the map is reviewed | hand-built; deals checked against filings |
Times are New York time. Free sources are pulled on the schedule shown by the pipeline runner (data/corpus/run_pipelines.py), which logs every run; paid sources run only with the owner's yes; filings and newsroom pages are re-read when a new document is filed.
Links come from the AI Systems Map ontology. Deals carry the filing's own wording and a quote, checked against the document; latest source 2026-10-26. Not investment advice.