Where does Ohkuchi Materials Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ohkuchi Materials Co., Ltd. ranks #16,255 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 Ohkuchi Materials Co., Ltd. hold?

Ohkuchi Materials Co., Ltd. holds 18 US utility patents granted between 2019 and 2022, spanning 4 technology areas.

What is Ohkuchi Materials Co., Ltd.'s Innovation Score?

Ohkuchi Materials Co., Ltd. has an Innovation Score of 21.5 out of 100 (9th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ohkuchi Materials Co., Ltd. focus on?

Ohkuchi Materials Co., Ltd.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 18 patents, ranking #648 of 3,373 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Ohkuchi Materials Co., Ltd.'s patent grant rate increasing or decreasing?

Ohkuchi Materials Co., Ltd.'s recent grant velocity is +57% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Ohkuchi Materials Co., Ltd.'s patents?

Ohkuchi Materials Co., Ltd.'s patents average 6.4 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 Ohkuchi Materials 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

Ohkuchi Materials Co., Ltd.

USPTO PatentsView assignee record - 18 granted patents across 4 technology areas, recorded in grant years 2019–2022. 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ohkuchi ranks #16,255 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 4 technology areas.

#16,255
of 49,997 US assignees by volume: 9th percentile
by Innovation Score (21.5/100): 6.4
avg claims per patent: +57%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16255 · Foreign Corporation #16,255 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 18 grants
MID-PACK #16,255/49,997
PHOTO-FINISH Obsidian Sensors
CPC-NARROW H01L · 4 areas
INNOV-THIN 21.5/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +57% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Obsidian Sensors, Inc. (±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 Ohkuchi’s 21.5 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 10.2 pts (47%) Velocity 0.4 pts (2%) Breadth 7.1 pts (33%) Claim depth 3.9 pts (18%)

Qualcomm Incorporated · highest

85
Ohkuchi Materials · this assignee

22
3D Lighting… · lowest

7

What this shows Ohkuchi's Innovation Score is 21.5/100 (9th percentile 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 Ohkuchi?

Each dot is one of Ohkuchi’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). Ohkuchi’s own 6.4 claims/patent is at or below the 18.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ohkuchi's grants concentrate

Ohkuchi Materials Co., Ltd. is a focused PatentsView assignee: 4 CPC subclasses with 100% of grants classified under H01L (Semiconductor Devices NOT Covered BY Class H10). Peak complete grant year is 2019 (7 grants) versus a trough of 1 in 2022. By volume, Ohkuchi sits between Ours Technology, LLC and Optica Amuka (A.A.) Ltd.

Ohkuchi's three-year grant acceleration

Ohkuchi Materials Co., Ltd. shows 1 grants in 2022–2024 against only 17 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Ours Technology

18
Outinfutures

18
Overkiz

18
Obsidian Sensors

18
On Time Staffing

18
Opentable

18
Oplink Communicat…

18
Optica Amuka (A A…

18
Ohkuchi Materials ◀

18

What this shows Ohkuchi holds 18 patents at rank #16,260, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ohkuchi

By rank, the assignees closest to #16,260 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

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

Ohkuchi's Innovation Score vs. every tracked assignee

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

22 9th percentile higher than 9% 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 · 2019–2022

Grants by year

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

View data table

Ohkuchi Materials Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	7	38.9%
2020	7	38.9%
2021	3	16.7%
2022	1	5.6%

Which technologies does Ohkuchi Materials Co., Ltd. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 18

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 6

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 2

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; 1

Top 4 of 4 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

Ohkuchi Materials Co., Ltd.'s patent record in context - here's where to go next.

Ohkuchi Materials Co., Ltd.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 100% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #16,255 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ohkuchi Materials Co., Ltd. against Ours Technology, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 21.5/100 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.