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

According to USPTO PatentsView (2015–2025 granted utility patents), Maxell Izumi Co., Ltd. ranks #20,058 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 Maxell Izumi Co., Ltd. hold?

Maxell Izumi Co., Ltd. holds 14 US utility patents granted between 2019 and 2025, spanning 7 technology areas.

What is Maxell Izumi Co., Ltd.'s Innovation Score?

Maxell Izumi Co., Ltd. has an Innovation Score of 31.6 out of 100 (38th 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 Maxell Izumi Co., Ltd. focus on?

Maxell Izumi Co., Ltd.'s top technology area is B26B (Hand-held Cutting Tools NOT Otherwise Provided FOR) with 10 patents, ranking #27 of 239 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

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

Maxell Izumi Co., Ltd.'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 Maxell Izumi Co., Ltd.'s patents?

Maxell Izumi Co., Ltd.'s patents average 5.9 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 Maxell Izumi 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

Maxell Izumi Co., Ltd.

USPTO PatentsView assignee record - 14 granted patents across 7 technology areas, recorded in grant years 2019–2025. 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: B26B (Hand-held Cutting Tools 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, Maxell ranks #20,058 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 7 technology areas.

#20,058
of 49,997 US assignees by volume: 38th percentile
by Innovation Score (31.6/100): 5.9
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20058 · Foreign Corporation #20,058 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #20,058/49,997
PHOTO-FINISH Marine Town
CPC-NARROW B26B · 7 areas
INNOV-THIN 31.6/100
CLAIMS-SPARSE 5.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Marine Town 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 Maxell’s 31.6 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 9.4 pts (30%) Velocity 9.3 pts (29%) Breadth 9.4 pts (30%) Claim depth 3.6 pts (11%)

Qualcomm Incorporated · highest

85
Maxell Izumi · this assignee

32
3D Lighting… · lowest

7

What this shows Maxell's Innovation Score is 31.6/100 (38th 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 Maxell?

Each dot is one of Maxell’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). Maxell’s own 5.9 claims/patent is at or below the 11.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Maxell's grants concentrate

Maxell Izumi Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 71.4% of grants classified under B26B (Hand-held Cutting Tools NOT Otherwise Provided FOR). Peak complete grant year is 2022 (5 grants) versus a trough of 2 in 2019. By volume, Maxell sits between Marine Town Inc. and Mccloskey International Limited.

Maxell's three-year grant acceleration

Maxell Izumi Co., Ltd. shows 7 grants in 2022–2024 against only 5 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.

Marine Town

14
Martur Italy S R L

14
Matco Tools

14
Mathys Bettlach

14
Maxon Internation…

14
Maxton Engineering

14
Mayeaux Holding

14
Mccloskey Interna…

14
Maxell Izumi ◀

14

What this shows Maxell holds 14 patents at rank #20,042, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Maxell

By rank, the assignees closest to #20,042 in granted patent volume.

Leaders in B26B (Hand-held Cutting Tools)

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

Maxell's Innovation Score vs. every tracked assignee

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

32 38th percentile higher than 38% 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 · 2019–2025

Grants by year

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

View data table

Maxell Izumi Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	14.3%
2021	3	21.4%
2022	5	35.7%
2024	2	14.3%
2025partial year	2	14.3%

Which technologies does Maxell Izumi Co., Ltd. patent most?

B26B - Hand-held Cutting Tools NOT Otherwise Provided FOR 10

B25F - Combination OR Multi-purpose Tools NOT Otherwise Provided FOR; Details OR Components OF Portable Power-driven Tools NOT Particularly Related TO THE Operations Performed AND NOT Otherwise Provided FOR 4

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 2

H02G - Installation OF Electric Cables OR Lines, OR OF Combined Optical AND Electric Cables OR Lines 1

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 1

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

Top 7 of 7 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

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

Maxell Izumi Co., Ltd.'s lead technology class is B26B (Hand-held Cutting Tools NOT Otherwise Provided FOR), 71.4% of its portfolio - see every assignee active in that class. Explore B26B
Ranked #20,058 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Maxell Izumi Co., Ltd. against Marine Town Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.6/100 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.