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

According to USPTO PatentsView (2015–2025 granted utility patents), Kokuyo Co., Ltd. ranks #7,726 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 Kokuyo Co., Ltd. hold?

Kokuyo Co., Ltd. holds 42 US utility patents granted between 2015 and 2025, spanning 14 technology areas.

What is Kokuyo Co., Ltd.'s Innovation Score?

Kokuyo Co., Ltd. has an Innovation Score of 34.7 out of 100 (48th 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 Kokuyo Co., Ltd. focus on?

Kokuyo Co., Ltd.'s top technology area is A47C (CHAIRS; SOFAS; Beds) with 18 patents, ranking #39 of 728 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

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

Kokuyo Co., Ltd.'s recent grant velocity is +173% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Kokuyo Co., Ltd.'s patents average 7.5 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 Kokuyo 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

Kokuyo Co., Ltd.

USPTO PatentsView assignee record - 42 granted patents across 14 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: A47C (CHAIRS; SOFAS; Beds).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kokuyo ranks #7,726 of 49,997 tracked US assignees by granted-patent volume, with 42 patents across 14 technology areas.

#7,726
of 49,997 US assignees by volume: 48th percentile
by Innovation Score (34.7/100): 7.5
avg claims per patent: +173%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7726 · Foreign Corporation #7,726 · 42 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 42 grants
UPPER-Q #7,726/49,997
PHOTO-FINISH Itoki
CPC-FOCUS A47C · 14 areas
INNOV-THIN 34.7/100
CLAIMS-SPARSE 7.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +173% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Itoki Corporation (±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 Kokuyo’s 34.7 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 13.0 pts (38%) Velocity 3.9 pts (11%) Breadth 13.2 pts (38%) Claim depth 4.5 pts (13%)

Qualcomm Incorporated · highest

85
NetIQ · near

35
BTL Medical s r o · near

35
Hydro International · near

35
Kokuyo · this assignee

35
Runway Blue · near

35
3D Lighting… · lowest

7

What this shows Kokuyo's Innovation Score is 34.7/100 (48th 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 Kokuyo?

Each dot is one of Kokuyo’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). Kokuyo’s own 7.5 claims/patent is at or below the 11.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kokuyo's grants concentrate

Kokuyo Co., Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 42.9% of grants classified under A47C (CHAIRS; SOFAS; Beds). Peak complete grant year is 2020 (11 grants) versus a trough of 1 in 2017. By volume, Kokuyo sits between Itoki Corporation and LGS Innovations LLC.

Kokuyo's three-year grant acceleration

From 2019–2021 to 2022–2024, Kokuyo Co., Ltd. moved from 22 to 13 grants (0.59x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Itoki

42
Jess-link Products

42
JRD Communication

42
K-fee System

42
Kong

42
Korea Railroad Re…

42
Kichler Lighting

42
LGS Innovations

42
Kokuyo ◀

42

What this shows Kokuyo holds 42 patents at rank #7,725, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kokuyo

By rank, the assignees closest to #7,725 in granted patent volume.

Leaders in A47C (Chairs)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kokuyo, neither rank-band nor same-CPC leaders (those blocks stay above). In A47C (Chairs), Kokuyo ranks #39 of 728 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (35 here).

BTL Medical Technologies s.r.o. 35 Runway Blue, LLC 35 Hydro International Ltd 35 NetIQ Corporation 35

Kokuyo's Innovation Score vs. every tracked assignee

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

35 48th percentile higher than 48% 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

Kokuyo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	4.8%
2016	2	4.8%
2017	1	2.4%
2018	1	2.4%
2019	5	11.9%
2020	11	26.2%
2021	6	14.3%
2022	3	7.1%
2023	1	2.4%
2024	9	21.4%
2025partial year	1	2.4%

Which technologies does Kokuyo Co., Ltd. patent most?

A47C - CHAIRS; SOFAS; Beds 18

Y10T - Technical Subjects Covered BY Former US Classification 4

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 3

B43M - Bureau Accessories NOT Otherwise Provided FOR 3

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 3

B05C - Apparatus FOR Applying Fluent Materials TO Surfaces, IN General 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

B43L - Articles FOR Writing OR Drawing UPON; ; Writing OR Drawing AIDS;; Accessories FOR Writing OR Drawing 1

B26F - PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; Severing BY Means Other Than Cutting 1

B31F - Mechanical Working OR Deformation OF Paper, Cardboard OR Material Worked IN A Manner Analogous TO Paper 1

B42B - Permanently Attaching Together Sheets, Quires OR Signatures OR Permanently Attaching Objects Thereto 1

B42F - Sheets Temporarily Attached TOGETHER; Filing APPLIANCES; File CARDS; Indexing 1

B26D - CUTTING; Details Common TO Machines FOR Perforating, Punching, Cutting-out, Stamping-out OR Severing 1

Top 14 of 14 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

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

Kokuyo Co., Ltd.'s lead technology class is A47C (CHAIRS; SOFAS; Beds), 42.9% of its portfolio - see every assignee active in that class. Explore A47C
Ranked #7,726 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kokuyo Co., Ltd. against Itoki Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.7/100 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.