Where does Koizumi Factory rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Koizumi Factory ranks #41,267 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 Koizumi Factory hold?

Koizumi Factory holds 6 US utility patents granted between 2016 and 2024, spanning 9 technology areas.

What is Koizumi Factory's Innovation Score?

Koizumi Factory has an Innovation Score of 44.4 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 Koizumi Factory's patent grant rate increasing or decreasing?

Koizumi Factory's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Koizumi Factory's patents?

Koizumi Factory's patents average 11.8 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 Koizumi Factory 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

Koizumi Factory

Q: What technology areas does Koizumi Factory focus on?

Koizumi Factory's top technology area is G10K (Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR) with 4 patents, ranking #145 of 630 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 9 technology areas, recorded in grant years 2016–2024. 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: G10K (Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Koizumi ranks #41,267 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 9 technology areas.

#41,267
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.4/100): 11.8
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R41267 · Foreign Corporation #41,267 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #41,267/49,997
PHOTO-FINISH Kobo
CPC-NARROW G10K · 9 areas
INNOV-PAR 44.4/100
CLAIMS-PAR 11.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kobo 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 Koizumi’s 44.4 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 6.7 pts (15%) Velocity 20.0 pts (45%) Breadth 10.6 pts (24%) Claim depth 7.1 pts (16%)

Qualcomm Incorporated · highest

85
Koizumi Factory · this assignee

44
3D Lighting… · lowest

7

What this shows Koizumi's Innovation Score is 44.4/100 (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 Koizumi?

Each dot is one of Koizumi’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). Koizumi’s own 11.8 claims/patent is ABOVE the 11.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Koizumi's grants concentrate

Koizumi Factory is a focused PatentsView assignee: 9 CPC subclasses with 66.7% of grants classified under G10K (Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR). Peak complete grant year is 2024 (2 grants) versus a trough of 1 in 2016. By volume, Koizumi sits between Kobo Inc. and Konan Medical USA, Inc..

Koizumi's three-year grant acceleration

Koizumi Factory shows 4 grants in 2022–2024 against only 1 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.

Kobo

6
Koch Membrane Sys…

6
Kochi University…

6
Koerber Supply Ch…

6
Kokoku Intech

6
Komy

6
Kona M

6
Konan Medical USA

6
Koizumi Factory ◀

6

What this shows Koizumi holds 6 patents at rank #41,270, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Koizumi

By rank, the assignees closest to #41,270 in granted patent volume.

Leaders in G10K (Sound-producing Devices)

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

Koizumi'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 · 2016–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Koizumi Factory patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	16.7%
2021	1	16.7%
2022	1	16.7%
2023	1	16.7%
2024	2	33.3%

Which technologies does Koizumi Factory patent most?

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 4

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 3

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 2

B26B - Hand-held Cutting Tools NOT Otherwise Provided FOR 2

H04N - Pictorial Communication, e.g. Television 1

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 1

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 1

H04M - Telephonic Communication 1

A47G - Household OR Table Equipment 1

Top 9 of 9 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

Koizumi Factory's patent record in context - here's where to go next.

Koizumi Factory's lead technology class is G10K (Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR), 66.7% of its portfolio - see every assignee active in that class. Explore G10K
Ranked #41,267 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Koizumi Factory against Kobo Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.4/100 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.