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

According to USPTO PatentsView (2015–2025 granted utility patents), Koito Manufacturing Co., Ltd. ranks #496 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 Koito Manufacturing Co., Ltd. hold?

Koito Manufacturing Co., Ltd. holds 902 US utility patents granted between 2015 and 2025, spanning 118 technology areas.

What is Koito Manufacturing Co., Ltd.'s Innovation Score?

Koito Manufacturing Co., Ltd. has an Innovation Score of 59.3 out of 100 (top 4% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Koito Manufacturing Co., Ltd.'s recent grant velocity is -2% 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 Koito Manufacturing Co., Ltd.'s patents?

Koito Manufacturing Co., Ltd.'s patents average 9.1 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 Koito Manufacturing 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

Koito Manufacturing Co., Ltd.

Q: What technology areas does Koito Manufacturing Co., Ltd. focus on?

Koito Manufacturing Co., Ltd.'s top technology area is F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors) with 564 patents, ranking #1 of 1,094 assignees active in that subclass. Grants appear in 118 CPC subclasses total.

USPTO PatentsView assignee record - 902 granted patents across 118 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: F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Koito ranks #496 of 49,997 tracked US assignees by granted-patent volume, with 902 patents across 118 technology areas.

#496
of 49,997 US assignees by volume: Top 4%
by Innovation Score (59.3/100): 9.1
avg claims per patent: -2%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R496 · Foreign Corporation #496 · 902 grants

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

GRANTS-MID 902 grants
TOP-DECILE #496/49,997
PHOTO-FINISH Dolby International AB
CPC-WIDE F21S · 118 areas
INNOV-PAR 59.3/100
CLAIMS-PAR 9.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -2% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dolby International AB (±1 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 Koito’s 59.3 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 23.5 pts (40%) Velocity 5.3 pts (9%) Breadth 25.0 pts (42%) Claim depth 5.4 pts (9%)

Qualcomm Incorporated · highest

85
iControl Networks · near

59
Koito Manufacturing · this assignee

59
Panasonic Automotive… · near

59
Sage Electrochromics · near

59
Hefei BOE Optoelectr… · near

59
3D Lighting… · lowest

7

What this shows Koito's Innovation Score is 59.3/100 (top 4% 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 Koito?

Each dot is one of Koito’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). Koito’s own 9.1 claims/patent is at or below the 16.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Koito's grant cadence moved

Between 2020–2024, Koito Manufacturing Co., Ltd. received 417 grants versus 427 in 2015–2019 (-2% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 108 grants and bottomed in 2017 at 62. Lead class F21S accounts for 62.5% of the portfolio across 118 subclasses. Volume neighbours: McAfee, LLC (#492) and Arkema France (#500).

Koito's three-year grant acceleration

From 2019–2021 to 2022–2024, Koito Manufacturing Co., Ltd. moved from 292 to 233 grants (0.80x 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 #1,851. See the growth leaderboard.

Mcafee

906
Brunswick

905
Idemitsu Kosan

905
Dolby Internation…

903
Koito Manufacturi… ◀

902
BAE Systems Infor…

900
Omnivision

897
Globalfoundries U…

896
Arkema France

892

What this shows Koito holds 902 patents at rank #496, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Koito

By rank, the assignees closest to #496 in granted patent volume.

Leaders in F21S (Non-portable Lighting Devices)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Koito, neither rank-band nor same-CPC leaders (those blocks stay above). In F21S (Non-portable Lighting Devices), Koito ranks #1 of 1,094 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (59 here).

iControl Networks, Inc. 59 Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America 59 Sage Electrochromics, Inc. 59 Hefei BOE Optoelectronics Technology Co., Ltd. 59

Similar claim depth

Nearest assignees by average claims per patent (9.1 here).

Ishida Co., Ltd. 9.1 avg UPL Ltd 9.1 avg NTN Corporation 9.1 avg Hitachi Koki Co., Ltd. 9.1 avg

Koito's Innovation Score vs. every tracked assignee

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

59 Top 4% higher than 96% 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

Koito Manufacturing Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	68	7.5%
2016	89	9.9%
2017	62	6.9%
2018	100	11.1%
2019	108	12.0%
2020	104	11.5%
2021	80	8.9%
2022	74	8.2%
2023	72	8.0%
2024	87	9.6%
2025partial year	58	6.4%

Which technologies does Koito Manufacturing Co., Ltd. patent most?

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 564

B60Q - Arrangement OF Signalling OR Lighting Devices, THE Mounting OR Supporting Thereof OR Circuits Therefor, FOR Vehicles IN General 492

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 161

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 157

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 144

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 108

G02B - Optical Elements, Systems OR Apparatus 100

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 68

H04N - Pictorial Communication, e.g. Television 64

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 62

B60S - Servicing, Cleaning, Repairing, Supporting, Lifting, OR Manoeuvring OF Vehicles, NOT Otherwise Provided FOR 57

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 43

G06V - Image OR Video Recognition OR Understanding 42

G08G - Traffic Control Systems 35

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 29

Top 15 of 118 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

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

Koito Manufacturing Co., Ltd.'s lead technology class is F21S (Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors), 62.5% of its portfolio - see every assignee active in that class. Explore F21S
Ranked #496 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Koito Manufacturing Co., Ltd. against McAfee, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 59.3/100 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.