USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsubishi Materials Corporation

USPTO PatentsView assignee record - 640 granted patents across 141 technology areas, active 2015–2025. 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

640

Total patents granted

141

CPC technology areas

8.5

Avg claims per patent

-25%

5-year filing velocity

The verdict

Mitsubishi holds 640 US patents across 141 technology areas, rank #708 of 50,000 tracked assignees.

#708
of 50,000 US assignees by volume: Top 6%
by Innovation Score (56.8/100): 8.5
avg claims per patent: -25%
filing velocity, last 5 yrs

Portfolio overview

Mitsubishi Materials Corporation has been granted 640 US utility patents between 2015 and 2025, placing Mitsubishi Materials Corporation at rank #708 across all assignees tracked by PlainPatent. This portfolio spans 141 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.5 claims per patent with primary concentration in C22C (ALLOYS). As a Foreign Corporation, Mitsubishi Materials Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Mitsubishi sits between GS Yuasa International Ltd. (645 patents, rank #704) and Mitsubishi Hitachi Power Systems, Ltd. (638 patents, rank #712) - the closest US assignees by grant volume. The composite Innovation Score of 56.8/100 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 275 grants, compared with 365 in the 2015–2019 window, a -25% 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. Mitsubishi Materials Corporation's 8.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Mitsubishi Materials Corporation against peers pursuing similar technology classes.

GS Yuasa Internat…

645
Siemens Energy

645
Vanderbilt Univer…

642
Abbott Cardiovasc…

640
S C Johnson & SON

640
Mitsubishi Materi… ◀

640
MANN+Hummel

639
Lincoln Global

638
Mitsubishi Hitach…

638

What this shows Mitsubishi holds 640 patents at rank #708, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsubishi

By rank, the assignees closest to #708 in granted patent volume.

Leaders in C22C (Alloys)

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

Mitsubishi's Innovation Score vs. every tracked assignee

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

57 Top 6% higher than 94% 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

Mitsubishi Materials Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	58	9.1%
2016	60	9.4%
2017	85	13.3%
2018	75	11.7%
2019	87	13.6%
2020	62	9.7%
2021	57	8.9%
2022	60	9.4%
2023	33	5.2%
2024	42	6.6%
2025	21	3.3%

Which technologies does Mitsubishi Materials Corporation patent most?

C22C - ALLOYS 170

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 137

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 135

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 129

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 98

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 87

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 84

B23B - TURNING; BORING 83

C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS 73

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 64

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 59

B23C - MILLING 50

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 49

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 47

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 42

Top 15 of 141 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#708

Across all tracked assignees

Innovation Score

56.8 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 Mitsubishi Materials Corporation hold?

Mitsubishi Materials Corporation holds 640 US granted patents filed between 2015 and 2025, spanning 141 technology areas.

What is Mitsubishi Materials Corporation's Innovation Score?

Mitsubishi Materials Corporation has an Innovation Score of 56.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsubishi Materials Corporation focus on?

Mitsubishi Materials Corporation's top technology area is C22C (ALLOYS) with 170 patents. The company has filed patents in 141 CPC subclasses total.

Is Mitsubishi Materials Corporation's patent filing rate increasing or decreasing?

Mitsubishi Materials Corporation's recent filing velocity is -25% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Mitsubishi Materials Corporation's patents?

Mitsubishi Materials Corporation's patents average 8.5 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Mitsubishi Materials Corporation 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

Mitsubishi's 640 grants land it in the top 6% 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 - Mitsubishi ranks #708 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.