USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Senju Metal Industry Co., Ltd.

USPTO PatentsView assignee record - 214 granted patents across 58 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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).

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

Explore the portfolio See the ranking

214

Total patents granted

CPC technology areas

9.7

Avg claims per patent

+25%

5-year filing velocity

The verdict

Senju holds 214 US patents across 58 technology areas, rank #1,881 of 50,000 tracked assignees.

#1,881
of 50,000 US assignees by volume: Top 7%
by Innovation Score (55.3/100): 9.7
avg claims per patent: +25%
filing velocity, last 5 yrs

Portfolio overview

Senju Metal Industry Co., Ltd. has been granted 214 US utility patents between 2015 and 2025, placing Senju Metal Industry Co., Ltd. at rank #1,881 across all assignees tracked by PlainPatent. This portfolio spans 58 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.7 claims per patent with primary concentration in 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). As a Foreign Corporation, Senju Metal Industry Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Senju sits between MKS Instruments, Inc. (214 patents, rank #1,877) and Clariant International Ltd (213 patents, rank #1,885) - the closest US assignees by grant volume. The composite Innovation Score of 55.3/100 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 119 grants, compared with 95 in the 2015–2019 window, a +25% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Senju Metal Industry Co., Ltd.'s 9.7 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 58 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Senju Metal Industry Co., Ltd. against peers pursuing similar technology classes.

MKS Instruments

214
Minebea

214
NEC Display Solut…

214
Nunhems B V

214
St-ericsson

214
Tosoh

214
Senju Metal Indus… ◀

214
Brown University

213
Clariant Internat…

213

What this shows Senju holds 214 patents at rank #1,881, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Senju

By rank, the assignees closest to #1,881 in granted patent volume.

Leaders in B23K (Soldering OR Unsoldering)

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

Senju's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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 · 2015–2025

Grants by year

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

View data table

Senju Metal Industry Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	12	5.6%
2016	14	6.5%
2017	22	10.3%
2018	22	10.3%
2019	25	11.7%
2020	22	10.3%
2021	22	10.3%
2022	20	9.3%
2023	21	9.8%
2024	21	9.8%
2025	13	6.1%

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

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 186

C22C - ALLOYS 117

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 90

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 57

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 32

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 18

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 16

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 14

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 13

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 12

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 10

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 9

F16C - SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 9

C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS 7

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 6

Top 15 of 58 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#1,881

Across all tracked assignees

Innovation Score

55.3 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 Senju Metal Industry Co., Ltd. hold?

Senju Metal Industry Co., Ltd. holds 214 US granted patents filed between 2015 and 2025, spanning 58 technology areas.

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

Senju Metal Industry Co., Ltd. has an Innovation Score of 55.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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

Senju Metal Industry Co., Ltd.'s top technology area is 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) with 186 patents. The company has filed patents in 58 CPC subclasses total.

Is Senju Metal Industry Co., Ltd.'s patent filing rate increasing or decreasing?

Senju Metal Industry Co., Ltd.'s recent filing velocity is +25% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Senju Metal Industry Co., Ltd.'s patents?

Senju Metal Industry Co., Ltd.'s patents average 9.7 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Senju 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.

How to use this portfolio

Senju's 214 grants land it in the top 7% 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 - Senju ranks #1,881 of 50,000. Top 50 holders
Most of this portfolio concentrates in B23K - see who else leads that technology area. B23K 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.