Overall rank by patents
#294
Across all tracked assignees
USPTO PatentsView assignee record - 1,454 granted patents across 91 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G11B (INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER).
The verdict
Toshiba holds 1,454 US patents across 91 technology areas, rank #294 of 50,000 tracked assignees.
Toshiba Electronic Devices & Storage Corporation has been granted 1,454 US utility patents between 2018 and 2025, placing Toshiba Electronic Devices & Storage Corporation at rank #294 across all assignees tracked by PlainPatent. This portfolio spans 91 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.3 claims per patent with primary concentration in G11B (INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER). As a Foreign Corporation, Toshiba Electronic Devices & Storage Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Toshiba sits between Lockheed Martin Corporation (1,464 patents, rank #290) and Jtekt Corporation (1,431 patents, rank #298) - the closest US assignees by grant volume. The composite Innovation Score of 66.7/100 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 1,349 grants, compared with 105 in the 2015–2019 window, a +1185% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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 Electronic Devices & Storage Corporation's 13.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 91 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Toshiba Electronic Devices & Storage Corporation against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Lockheed Martin Corporation
1,464 patents
NANYA TECHNOLOGY CORPORATION
1,461 patents
EMC Corporation
1,455 patents
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
1,455 patents
Toshiba Electronic Devices & Storage Corporation
1,454 patents
VIVO MOBILE COMMUNICATION CO., LTD.
1,451 patents
JFE Steel Corporation
1,443 patents
Freeescale Semiconductor, Inc.
1,437 patents
JTEKT CORPORATION
1,431 patents
What this shows Toshiba holds 1,454 patents at rank #294, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #294 in granted patent volume.
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)
67 Top 1% higher than 99% 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
Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2018 | 10 | 0.7% |
| 2019 | 95 | 6.5% |
| 2020 | 233 | 16.0% |
| 2021 | 224 | 15.4% |
| 2022 | 268 | 18.4% |
| 2023 | 228 | 15.7% |
| 2024 | 210 | 14.4% |
| 2025 | 186 | 12.8% |
Top 15 of 91 technology areas
Overall rank by patents
#294
Across all tracked assignees
66.7 out of 100
How to use this portfolio
Toshiba's 1,454 grants land it in the top 1% by Innovation Score, but volume alone doesn't tell you where the strength sits.
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.
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.