USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nisshin Steel Co., Ltd.

USPTO PatentsView assignee record - 102 granted patents across 59 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C22C (ALLOYS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

102

Total patents granted

CPC technology areas

7.4

Avg claims per patent

-80%

5-year filing velocity

The verdict

Nisshin holds 102 US patents across 59 technology areas, rank #3,602 of 50,000 tracked assignees.

#3,602
of 50,000 US assignees by volume: Top 23%
by Innovation Score (45.7/100): 7.4
avg claims per patent: -80%
filing velocity, last 5 yrs

Portfolio overview

Nisshin Steel Co., Ltd. has been granted 102 US utility patents between 2015 and 2022, placing Nisshin Steel Co., Ltd. at rank #3,602 across all assignees tracked by PlainPatent. This portfolio spans 59 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.4 claims per patent with primary concentration in C22C (ALLOYS). As a Foreign Corporation, Nisshin Steel Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Nisshin sits between Infineum International Limited (102 patents, rank #3,598) and Shanghai Cambricon Information Technology Co., Ltd. (102 patents, rank #3,606) - the closest US assignees by grant volume. The composite Innovation Score of 45.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 17 grants, compared with 85 in the 2015–2019 window, a -80% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Nisshin Steel Co., Ltd.'s 7.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 59 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nisshin Steel Co., Ltd. against peers pursuing similar technology classes.

Infineum Internat…

102
Kakao

102
Kymab

102
Mellanox TLV

102
Ormco

102
Peking University…

102
Sagem Defense Sec…

102
Shanghai Cambrico…

102
Nisshin Steel ◀

102

What this shows Nisshin holds 102 patents at rank #3,602, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nisshin

By rank, the assignees closest to #3,602 in granted patent volume.

Leaders in C22C (Alloys)

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

Nisshin's Innovation Score vs. every tracked assignee

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

46 Top 23% higher than 77% of 50,000 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 · 2015–2022

Grants by year

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

View data table

Nisshin Steel Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	2.0%
2016	8	7.8%
2017	26	25.5%
2018	32	31.4%
2019	17	16.7%
2020	10	9.8%
2021	6	5.9%
2022	1	1.0%

Which technologies does Nisshin Steel Co., Ltd. patent most?

C22C - ALLOYS 42

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 31

C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING 29

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 23

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 21

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 15

B23K - SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 13

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 10

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 9

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 9

B22D - CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 8

B05D - PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 8

B21B - ROLLING OF METAL 8

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 6

B05C - APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 6

Top 15 of 59 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#3,602

Across all tracked assignees

Innovation Score

45.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Nisshin Steel Co., Ltd. hold?

Nisshin Steel Co., Ltd. holds 102 US granted patents filed between 2015 and 2022, spanning 59 technology areas.

What is Nisshin Steel Co., Ltd.'s Innovation Score?

Nisshin Steel Co., Ltd. has an Innovation Score of 45.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nisshin Steel Co., Ltd. focus on?

Nisshin Steel Co., Ltd.'s top technology area is C22C (ALLOYS) with 42 patents. The company has filed patents in 59 CPC subclasses total.

Is Nisshin Steel Co., Ltd.'s patent filing rate increasing or decreasing?

Nisshin Steel Co., Ltd.'s recent filing velocity is -80% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Nisshin Steel Co., Ltd.'s patents?

Nisshin Steel Co., Ltd.'s patents average 7.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Nisshin Steel 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.

How to use this portfolio

Nisshin's 102 grants land it in the top 23% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Nisshin ranks #3,602 of 50,000. Top 50 holders
Most of this portfolio concentrates in C22C - see who else leads that technology area. C22C leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.