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USPTO 2015–2025 USPTO PatentsView Foreign Corporation

TOKYO OHKA KOGYO CO., LTD.

USPTO PatentsView assignee record — 484 granted patents across 80 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;).

Explore the portfolio See the ranking
484
Total patents granted
80
CPC technology areas
9.4
Avg claims per patent
-27%
5-year filing velocity

Portfolio overview

TOKYO OHKA KOGYO CO., LTD. has been granted 484 US utility patents between 2015 and 2025, placing TOKYO OHKA KOGYO CO., LTD. at rank #921 across all assignees tracked by PlainPatent. This portfolio spans 80 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.4 claims per patent with primary concentration in G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;). As a Foreign Corporation, TOKYO OHKA KOGYO CO., LTD. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 58.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 204 grants, compared with 280 in the 2015–2019 window — a -27% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. TOKYO OHKA KOGYO CO., LTD.'s 9.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 80 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark TOKYO OHKA KOGYO CO., LTD. against peers pursuing similar technology classes.

How does TOKYO compare?

Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀

patents

What this shows TOKYO holds 484 patents — placing it at rank #921 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView — granted utility patents As of 2015–2025

USPTO utility patent grants by year · 2015–2025

020406080100 20152016201720182019202020212022202320242025 14
USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table
TOKYO OHKA KOGYO CO., LTD. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 84 17.4%
2016 51 10.5%
2017 57 11.8%
2018 43 8.9%
2019 45 9.3%
2020 32 6.6%
2021 44 9.1%
2022 40 8.3%
2023 43 8.9%
2024 31 6.4%
2025 14 2.9%

Which technologies does TOKYO OHKA KOGYO CO., LTD. patent most?

Top 15 of 80 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Declining

Where it ranks

Overall rank by patents

#921

Across all tracked assignees

Innovation Score

58.3 out of 100

View all rankings →

Data Source

USPTO PatentsView — US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does TOKYO OHKA KOGYO CO., LTD. hold?
TOKYO OHKA KOGYO CO., LTD. holds 484 US granted patents filed between 2015 and 2025, spanning 80 technology areas.
What is TOKYO OHKA KOGYO CO., LTD.'s Innovation Score?
TOKYO OHKA KOGYO CO., LTD. has an Innovation Score of 58.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does TOKYO OHKA KOGYO CO., LTD. focus on?
TOKYO OHKA KOGYO CO., LTD.'s top technology area is G03F (PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;) with 274 patents. The company has filed patents in 80 CPC subclasses total.
Is TOKYO OHKA KOGYO CO., LTD.'s patent filing rate increasing or decreasing?
TOKYO OHKA KOGYO CO., LTD.'s recent filing velocity is -27% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for TOKYO OHKA KOGYO CO., LTD.'s patents?
TOKYO OHKA KOGYO CO., LTD.'s patents average 9.4 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the TOKYO OHKA KOGYO CO., LTD. patent data sourced?
All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

Learn More

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

Explore the patent dataset

G03F technology

TOKYO OHKA KOGYO CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders

See where TOKYO OHKA KOGYO CO., LTD. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

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Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology — how this data is sourced, computed, and verified.

All federal data sources used on this page
  • USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
  • USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
  • USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
  • USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
  • SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
  • WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope