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;).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

484

Total patents granted

CPC technology areas

9.4

Avg claims per patent

-27%

5-year filing velocity

The verdict

Tokyo holds 484 US patents across 80 technology areas, rank #921 of 50,000 tracked assignees.

#921
of 50,000 US assignees by volume: Top 5%
by Innovation Score (58.3/100): 9.4
avg claims per patent: -27%
filing velocity, last 5 yrs

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. By volume, Tokyo sits between Abbott Laboratories (485 patents, rank #917) and SIKA Technology Ag (482 patents, rank #925) - the closest US assignees by grant volume. 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.

Abbott Laboratori…

485
Bridgestone Ameri…

485
Johnson & Johnson…

485
Rhodia Operations

484
Tokyo OHKA Kogyo ◀

484
Atmel

483
Pioneer

483
Toyota Motor Nort…

483
SIKA Technology

482

What this shows Tokyo holds 484 patents at rank #921, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tokyo

By rank, the assignees closest to #921 in granted patent volume.

Leaders in G03F (Photomechanical Production OF Textured OR Patterned Surfaces)

Other assignees with the most granted patents in Tokyo's primary technology class.

Tokyo's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

58 Top 5% higher than 95% of 50,000 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

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?

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; 274

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 123

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 113

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 110

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 65

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 62

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 59

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 43

C07D - HETEROCYCLIC COMPOUNDS 40

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 36

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 35

B05D - PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 28

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 22

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 22

C11D - DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL 20

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.

How to use this portfolio

Tokyo's 484 grants land it in the top 5% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Tokyo ranks #921 of 50,000. Top 50 holders
Most of this portfolio concentrates in G03F - see who else leads that technology area. G03F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.