Where does Tokyo Ohka Kogyo Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tokyo Ohka Kogyo Co., Ltd. ranks #921 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Tokyo Ohka Kogyo Co., Ltd. hold?

Tokyo Ohka Kogyo Co., Ltd. holds 484 US utility patents granted 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 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Tokyo Ohka Kogyo Co., Ltd.'s patent grant rate increasing or decreasing?

Tokyo Ohka Kogyo Co., Ltd.'s recent grant velocity is -32% compared to the prior five-year period (grant years, not application filing dates). Grant 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 an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tokyo Ohka Kogyo Co., Ltd.

Q: 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, ranking #12 of 595 assignees active in that subclass. Grants appear in 80 CPC subclasses total.

USPTO PatentsView assignee record - 484 granted patents across 80 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. 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 by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Tokyo ranks #921 of 49,997 tracked US assignees by granted-patent volume, with 484 patents across 80 technology areas.

#921
of 49,997 US assignees by volume: Top 5%
by Innovation Score (58.3/100): 9.4
avg claims per patent: -32%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R921 · Foreign Corporation #921 · 484 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 484 grants
TOP-DECILE #921/49,997
PHOTO-FINISH Rhodia Operations
CPC-WIDE G03F · 80 areas
INNOV-PAR 58.3/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -32% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rhodia Operations (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Tokyo’s 58.3 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 21.4 pts (37%) Velocity 6.3 pts (11%) Breadth 25.0 pts (43%) Claim depth 5.6 pts (10%)

Qualcomm Incorporated · highest

85
Johnson & Johnson… · near

58
Time Warner Cable… · near

58
Tokyo Ohka Kogyo · this assignee

58
Yanmar Power… · near

58
Pioneer · near

58
3D Lighting… · lowest

7

What this shows Tokyo's Innovation Score is 58.3/100 (top 5% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Tokyo?

Each dot is one of Tokyo’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Tokyo’s own 9.4 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Tokyo vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Tokyo's grant cadence moved

Between 2020–2024, Tokyo Ohka Kogyo Co., Ltd. received 190 grants versus 280 in 2015–2019 (-32% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2015 at 84 grants and bottomed in 2024 at 31. Lead class G03F accounts for 56.6% of the portfolio across 80 subclasses. Volume neighbours: Abbott Laboratories (#917) and Sika Technology AG (#925).

Tokyo's three-year grant acceleration

From 2019–2021 to 2022–2024, Tokyo Ohka Kogyo Co., Ltd. moved from 121 to 114 grants (0.94x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,352. See the growth leaderboard.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tokyo, neither rank-band nor same-CPC leaders (those blocks stay above). In G03F (Photomechanical Production OF Textured OR Patterned Surfaces), Tokyo ranks #12 of 595 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (58 here).

Time Warner Cable Enterprises LLC 58 Yanmar Power Technology Co., Ltd. 58 Johnson & Johnson Consumer Inc. 58 Pioneer Corporation 58

Similar claim depth

Nearest assignees by average claims per patent (9.4 here).

Mars, Incorporated 9.4 avg Universal Entertainment Corporation 9.4 avg Shindengen Electric Manufacturing Co., Ltd. 9.4 avg Tamura Corporation 9.4 avg

Tokyo's Innovation Score vs. every tracked assignee

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

58 Top 5% higher than 95% of 49,997 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%
2025partial year	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

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Tokyo Ohka Kogyo Co., Ltd.'s patent record in context - here's where to go next.

Tokyo Ohka Kogyo Co., Ltd.'s lead technology class 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;), 56.6% of its portfolio - see every assignee active in that class. Explore G03F
Ranked #921 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tokyo Ohka Kogyo Co., Ltd. against Abbott Laboratories, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 58.3/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.