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

According to USPTO PatentsView (2015–2025 granted utility patents), Kurabe Industrial Co., Ltd. ranks #21,359 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 Kurabe Industrial Co., Ltd. hold?

Kurabe Industrial Co., Ltd. holds 13 US utility patents granted between 2015 and 2025, spanning 11 technology areas.

What is Kurabe Industrial Co., Ltd.'s Innovation Score?

Kurabe Industrial Co., Ltd. has an Innovation Score of 44.3 out of 100 (top 26% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Kurabe Industrial Co., Ltd.'s recent grant velocity is +40% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Kurabe Industrial Co., Ltd.'s patents average 11.4 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 Kurabe Industrial 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

Kurabe Industrial Co., Ltd.

Q: What technology areas does Kurabe Industrial Co., Ltd. focus on?

Kurabe Industrial Co., Ltd.'s top technology area is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General) with 10 patents, ranking #334 of 2,247 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 13 granted patents across 11 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: H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kurabe ranks #21,359 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 11 technology areas.

#21,359
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.3/100): 11.4
avg claims per patent: +40%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21359 · Foreign Corporation #21,359 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #21,359/49,997
PHOTO-FINISH Kaazing
CPC-FOCUS H05B · 11 areas
INNOV-PAR 44.3/100
CLAIMS-PAR 11.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +40% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kaazing 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 Kurabe’s 44.3 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 9.1 pts (21%) Velocity 16.7 pts (38%) Breadth 11.7 pts (26%) Claim depth 6.8 pts (15%)

Qualcomm Incorporated · highest

85
Kurabe Industrial · this assignee

44
3D Lighting… · lowest

7

What this shows Kurabe's Innovation Score is 44.3/100 (top 26% 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 Kurabe?

Each dot is one of Kurabe’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). Kurabe’s own 11.4 claims/patent is ABOVE the 8.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Kurabe's grants concentrate

Kurabe Industrial Co., Ltd. is a focused PatentsView assignee: 11 CPC subclasses with 76.9% of grants classified under H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General). Peak complete grant year is 2018 (4 grants) versus a trough of 1 in 2015. By volume, Kurabe sits between Koplar Interactive Systems International, LLC and Kelvin Thermal Technologies, Inc..

Kurabe's three-year grant acceleration

Kurabe Industrial Co., Ltd. shows 5 grants in 2022–2024 against only 2 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.

Koplar Interactiv…

13
Kromek Group

13
KTL International

13
KUM OH

13
Kyb-ys

13
Kaazing

13
Takai Rika Denki…

13
Kelvin Thermal

13
Kurabe Industrial ◀

13

What this shows Kurabe holds 13 patents at rank #21,341, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kurabe

By rank, the assignees closest to #21,341 in granted patent volume.

Leaders in H05B (Electric Heating)

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

Kurabe's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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

Kurabe Industrial Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	7.7%
2018	4	30.8%
2020	1	7.7%
2021	1	7.7%
2022	2	15.4%
2023	2	15.4%
2024	1	7.7%
2025partial year	1	7.7%

Which technologies does Kurabe Industrial Co., Ltd. patent most?

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 10

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 7

B62D - Motor VEHICLES; Trailers 4

A47C - CHAIRS; SOFAS; Beds 3

B60S - Servicing, Cleaning, Repairing, Supporting, Lifting, OR Manoeuvring OF Vehicles, NOT Otherwise Provided FOR 2

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 1

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 1

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

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

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 11 of 11 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

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

Kurabe Industrial Co., Ltd.'s lead technology class is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General), 76.9% of its portfolio - see every assignee active in that class. Explore H05B
Ranked #21,359 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kurabe Industrial Co., Ltd. against Koplar Interactive Systems International, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.3/100 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.