Where does Ishifuku Metal Industry Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ishifuku Metal Industry Co., Ltd. ranks #22,810 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 Ishifuku Metal Industry Co., Ltd. hold?

Ishifuku Metal Industry Co., Ltd. holds 12 US utility patents granted between 2015 and 2023, spanning 12 technology areas.

What is Ishifuku Metal Industry Co., Ltd.'s Innovation Score?

Ishifuku Metal Industry Co., Ltd. has an Innovation Score of 36.1 out of 100 (top 47% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ishifuku Metal Industry Co., Ltd. focus on?

Ishifuku Metal Industry Co., Ltd.'s top technology area is C22C (Alloys) with 7 patents, ranking #216 of 948 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Ishifuku Metal Industry Co., Ltd.'s patent grant rate increasing or decreasing?

Ishifuku Metal Industry 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 Ishifuku Metal Industry Co., Ltd.'s patents?

Ishifuku Metal Industry Co., Ltd.'s patents average 6.4 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 Ishifuku Metal Industry 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

Ishifuku Metal Industry Co., Ltd.

USPTO PatentsView assignee record - 12 granted patents across 12 technology areas, recorded in grant years 2015–2023. 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Ishifuku ranks #22,810 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 12 technology areas.

#22,810
of 49,997 US assignees by volume: Top 47%
by Innovation Score (36.1/100): 6.4
avg claims per patent: +40%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R22810 · Foreign Corporation #22,810 · 12 grants

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

GRANTS-MICRO 12 grants
MID-PACK #22,810/49,997
PHOTO-FINISH Interactive Brokers
CPC-FOCUS C22C · 12 areas
INNOV-THIN 36.1/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +40% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Interactive Brokers LLC (±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 Ishifuku’s 36.1 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 8.9 pts (25%) Velocity 11.1 pts (31%) Breadth 12.2 pts (34%) Claim depth 3.9 pts (11%)

Qualcomm Incorporated · highest

85
Ishifuku Metal… · this assignee

36
3D Lighting… · lowest

7

What this shows Ishifuku's Innovation Score is 36.1/100 (top 47% 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 Ishifuku?

Each dot is one of Ishifuku’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). Ishifuku’s own 6.4 claims/patent is at or below the 13.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ishifuku's grants concentrate

Ishifuku Metal Industry Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 58.3% of grants classified under C22C (Alloys). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2017. By volume, Ishifuku sits between Interactive Brokers LLC and ITM Power (RESEARCH) Limited.

Ishifuku's three-year grant acceleration

Ishifuku Metal Industry Co., Ltd. shows 5 grants in 2022–2024 against only 3 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.

Interactive Broke…

12
International Deh…

12
Intrabio

12
ISC

12
Isoclima S P A

12
Israel Weapon Ind…

12
Isi

12
ITM Power (Resear…

12
Ishifuku Metal In… ◀

12

What this shows Ishifuku holds 12 patents at rank #22,770, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ishifuku

By rank, the assignees closest to #22,770 in granted patent volume.

Leaders in C22C (Alloys)

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

Ishifuku's Innovation Score vs. every tracked assignee

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

36 Top 47% higher than 53% 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 · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Ishifuku Metal Industry Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	25.0%
2017	1	8.3%
2019	1	8.3%
2021	2	16.7%
2022	2	16.7%
2023	3	25.0%

Which technologies does Ishifuku Metal Industry Co., Ltd. patent most?

C22C - Alloys 7

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 4

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

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

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 1

Y10T - Technical Subjects Covered BY Former US Classification 1

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

Top 12 of 12 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

Ishifuku Metal Industry Co., Ltd.'s patent record in context - here's where to go next.

Ishifuku Metal Industry Co., Ltd.'s lead technology class is C22C (Alloys), 58.3% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #22,810 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ishifuku Metal Industry Co., Ltd. against Interactive Brokers LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.1/100 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.