USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsumi Electric Co., Ltd.

USPTO PatentsView assignee record - 417 granted patents across 90 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).

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

Explore the portfolio See the ranking

417

Total patents granted

CPC technology areas

9.5

Avg claims per patent

+30%

5-year filing velocity

The verdict

Mitsumi holds 417 US patents across 90 technology areas, rank #1,043 of 50,000 tracked assignees.

#1,043
of 50,000 US assignees by volume: Top 6%
by Innovation Score (56.0/100): 9.5
avg claims per patent: +30%
filing velocity, last 5 yrs

Portfolio overview

Mitsumi Electric Co., Ltd. has been granted 417 US utility patents between 2015 and 2025, placing Mitsumi Electric Co., Ltd. at rank #1,043 across all assignees tracked by PlainPatent. This portfolio spans 90 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.5 claims per patent with primary concentration in G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). As a Foreign Corporation, Mitsumi Electric Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Mitsumi sits between Scania CV AB (420 patents, rank #1,039) and Florida State University Research Foundation, Inc. (413 patents, rank #1,047) - the closest US assignees by grant volume. The composite Innovation Score of 56.0/100 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 236 grants, compared with 181 in the 2015–2019 window, a +30% 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. Mitsumi Electric Co., Ltd.'s 9.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 90 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Mitsumi Electric Co., Ltd. against peers pursuing similar technology classes.

Scania CV AB

420
Varian Medical Sy…

419
Postech Academy-i…

418
KHS

417
Mitsumi Electric ◀

417
Agrigenics

416
Pegatron

414
Traxxas

414
Florida State Uni…

413

What this shows Mitsumi holds 417 patents at rank #1,043, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsumi

By rank, the assignees closest to #1,043 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Mitsumi's Innovation Score vs. every tracked assignee

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

56 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

Mitsumi Electric Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	45	10.8%
2016	28	6.7%
2017	30	7.2%
2018	26	6.2%
2019	52	12.5%
2020	51	12.2%
2021	55	13.2%
2022	45	10.8%
2023	34	8.2%
2024	27	6.5%
2025	24	5.8%

Which technologies does Mitsumi Electric Co., Ltd. patent most?

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 158

H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION 104

G03B - APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 102

H02K - DYNAMO-ELECTRIC MACHINES 61

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 55

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 48

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 35

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 32

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 24

H03K - PULSE TECHNIQUE 23

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 23

G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 20

G06F - ELECTRIC DIGITAL DATA PROCESSING 18

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 18

H10N - ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR 18

Top 15 of 90 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#1,043

Across all tracked assignees

Innovation Score

56.0 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 Mitsumi Electric Co., Ltd. hold?

Mitsumi Electric Co., Ltd. holds 417 US granted patents filed between 2015 and 2025, spanning 90 technology areas.

What is Mitsumi Electric Co., Ltd.'s Innovation Score?

Mitsumi Electric Co., Ltd. has an Innovation Score of 56.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsumi Electric Co., Ltd. focus on?

Mitsumi Electric Co., Ltd.'s top technology area is G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS) with 158 patents. The company has filed patents in 90 CPC subclasses total.

Is Mitsumi Electric Co., Ltd.'s patent filing rate increasing or decreasing?

Mitsumi Electric Co., Ltd.'s recent filing velocity is +30% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Mitsumi Electric Co., Ltd.'s patents?

Mitsumi Electric Co., Ltd.'s patents average 9.5 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Mitsumi Electric 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

Mitsumi's 417 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 - Mitsumi ranks #1,043 of 50,000. Top 50 holders
Most of this portfolio concentrates in G02B - see who else leads that technology area. G02B 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.