USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Mitsubishi-electric Industrial Systems Corporation

USPTO PatentsView assignee record - 452 granted patents across 88 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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;).

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

Explore the portfolio See the ranking

452

Total patents granted

CPC technology areas

8.0

Avg claims per patent

+20%

5-year filing velocity

The verdict

Toshiba holds 452 US patents across 88 technology areas, rank #972 of 50,000 tracked assignees.

#972
of 50,000 US assignees by volume: Top 6%
by Innovation Score (56.9/100): 8.0
avg claims per patent: +20%
filing velocity, last 5 yrs

Portfolio overview

Toshiba Mitsubishi-electric Industrial Systems Corporation has been granted 452 US utility patents between 2015 and 2025, placing Toshiba Mitsubishi-electric Industrial Systems Corporation at rank #972 across all assignees tracked by PlainPatent. This portfolio spans 88 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.0 claims per patent with primary concentration in 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;). As a Foreign Corporation, Toshiba Mitsubishi-electric Industrial Systems Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Toshiba sits between Murata Machinery, Ltd. (454 patents, rank #968) and The Mathworks, Inc. (450 patents, rank #976) - the closest US assignees by grant volume. The composite Innovation Score of 56.9/100 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 247 grants, compared with 205 in the 2015–2019 window, a +20% 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. Toshiba Mitsubishi-electric Industrial Systems Corporation's 8.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 88 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Toshiba Mitsubishi-electric Industrial Systems Corporation against peers pursuing similar technology classes.

Murata Machinery

454
Bombardier Recrea…

453
Continental Autom…

453
HGST Netherlands…

453
Toshiba Mitsubish… ◀

452
Delphi

451
Commonwealth Scie…

450
GREE Electric App…

450
The Mathworks

450

What this shows Toshiba holds 452 patents at rank #972, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Toshiba

By rank, the assignees closest to #972 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Toshiba'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

Toshiba Mitsubishi-electric Industrial Systems Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	33	7.3%
2016	31	6.9%
2017	46	10.2%
2018	46	10.2%
2019	49	10.8%
2020	45	10.0%
2021	61	13.5%
2022	72	15.9%
2023	34	7.5%
2024	33	7.3%
2025	2	0.4%

Which technologies does Toshiba Mitsubishi-electric Industrial Systems Corporation patent most?

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 212

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 143

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 71

H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 53

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 40

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 36

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 34

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 29

B21B - ROLLING OF METAL 29

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 27

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 26

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 26

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 20

G06F - ELECTRIC DIGITAL DATA PROCESSING 19

H05H - PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS 16

Top 15 of 88 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#972

Across all tracked assignees

Innovation Score

56.9 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 Toshiba Mitsubishi-electric Industrial Systems Corporation hold?

Toshiba Mitsubishi-electric Industrial Systems Corporation holds 452 US granted patents filed between 2015 and 2025, spanning 88 technology areas.

What is Toshiba Mitsubishi-electric Industrial Systems Corporation's Innovation Score?

Toshiba Mitsubishi-electric Industrial Systems Corporation has an Innovation Score of 56.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Toshiba Mitsubishi-electric Industrial Systems Corporation focus on?

Toshiba Mitsubishi-electric Industrial Systems Corporation's top technology area is 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) with 212 patents. The company has filed patents in 88 CPC subclasses total.

Is Toshiba Mitsubishi-electric Industrial Systems Corporation's patent filing rate increasing or decreasing?

Toshiba Mitsubishi-electric Industrial Systems Corporation's recent filing velocity is +20% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Toshiba Mitsubishi-electric Industrial Systems Corporation's patents?

Toshiba Mitsubishi-electric Industrial Systems Corporation's patents average 8.0 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Toshiba Mitsubishi-electric Industrial Systems 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

Toshiba's 452 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 - Toshiba ranks #972 of 50,000. Top 50 holders
Most of this portfolio concentrates in H02M - see who else leads that technology area. H02M 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.