Where does Koganei Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Koganei Corporation ranks #5,953 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 Koganei Corporation hold?

Koganei Corporation holds 57 US utility patents granted between 2015 and 2025, spanning 37 technology areas.

What is Koganei Corporation's Innovation Score?

Koganei Corporation has an Innovation Score of 41.9 out of 100 (top 32% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Koganei Corporation's patent grant rate increasing or decreasing?

Koganei Corporation's recent grant velocity is -66% 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 Koganei Corporation's patents?

Koganei Corporation's patents average 7.1 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 Koganei Corporation 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

Koganei Corporation

Q: What technology areas does Koganei Corporation focus on?

Koganei Corporation's top technology area is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating) with 19 patents. Grants appear in 37 CPC subclasses total.

USPTO PatentsView assignee record - 57 granted patents across 37 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: F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Koganei ranks #5,953 of 49,997 tracked US assignees by granted-patent volume, with 57 patents across 37 technology areas.

#5,953
of 49,997 US assignees by volume: Top 32%
by Innovation Score (41.9/100): 7.1
avg claims per patent: -66%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5953 · Foreign Corporation #5,953 · 57 grants

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

GRANTS-SMALL 57 grants
UPPER-Q #5,953/49,997
PHOTO-FINISH Innovation First
CPC-FOCUS F16K · 37 areas
INNOV-PAR 41.9/100
CLAIMS-SPARSE 7.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -66% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Innovation First, 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.

Qualcomm Incorporated · highest

85
Federal-Mogul… · near

42
Koganei · this assignee

42
Mips AB · near

42
Rion · near

42
Senju Pharmaceutical · near

42
3D Lighting… · lowest

7

What this shows Koganei's Innovation Score is 41.9/100 (top 32% 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.

Where Koganei's grants concentrate

Koganei Corporation is a focused PatentsView assignee: 37 CPC subclasses with 33.3% of grants classified under F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating). Peak complete grant year is 2015 (14 grants) versus a trough of 1 in 2023. By volume, Koganei sits between Innovation First, Inc. and Lyondell Chemical Technology, L.P..

Koganei's three-year grant acceleration

Koganei Corporation shows 5 grants in 2022–2024 against only 16 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.

Innovation First

57
Ironburg Inventio…

57
Japan Cash Machine

57
Jenavalve Technol…

57
Kwansei Gakuin Ed…

57
Kyosan Electric M…

57
La-z-boy Incorpor…

57
Lyondell Chemical…

57
Koganei ◀

57

What this shows Koganei holds 57 patents at rank #5,951, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Koganei

By rank, the assignees closest to #5,951 in granted patent volume.

Leaders in F16K (Valves)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Koganei, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Rion Co., Ltd. 42 Federal-Mogul Burscheid GmbH 42 Senju Pharmaceutical Co., Ltd. 42 Mips AB 42

Similar claim depth

Nearest assignees by average claims per patent (7.1 here).

Lumson S.p.A. 7.1 avg Tower Manufacturing Corp. 7.1 avg Shinwa Controls Co., Ltd. 7.1 avg FCA Italy S.p.A. 7.1 avg

Koganei's Innovation Score vs. every tracked assignee

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

42 Top 32% higher than 68% 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

Koganei Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	14	24.6%
2016	6	10.5%
2017	4	7.0%
2018	10	17.5%
2019	7	12.3%
2020	6	10.5%
2021	3	5.3%
2023	1	1.8%
2024	4	7.0%
2025partial year	2	3.5%

Which technologies does Koganei Corporation patent most?

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 19

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 10

Y10T - Technical Subjects Covered BY Former US Classification 10

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 10

B01D - Separation 8

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 6

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 6

B04C - Apparatus Using Free Vortex Flow, e.g. Cyclones 4

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 4

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 3

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 3

F16J - Pistons ; CYLINDERS; Sealings 2

H05F - Static ELECTRICITY; Naturally-occurring Electricity 2

H01T - Spark GAPS; Overvoltage Arresters Using Spark GAPS; Sparking PLUGS; Corona DEVICES; Generating Ions TO BE Introduced Into Non-enclosed Gases 2

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 2

Top 15 of 37 technology areas

Where it ranks

Overall rank by patents

#5,953

of 49,997 tracked assignees

Innovation Score

41.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Koganei Corporation's patent record in context - here's where to go next.

Koganei Corporation's lead technology class is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating), 33.3% of its portfolio - see every assignee active in that class. Explore F16K
Ranked #5,953 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Koganei Corporation against Innovation First, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.9/100 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.