Where does Toshiba Memory Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Toshiba Memory Corporation ranks #128 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Toshiba Memory Corporation hold?

Toshiba Memory Corporation holds 2,972 US utility patents granted between 2017 and 2024, spanning 114 technology areas.

What is Toshiba Memory Corporation's Innovation Score?

Toshiba Memory Corporation has an Innovation Score of 62.1 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Toshiba Memory Corporation focus on?

Toshiba Memory Corporation's top technology area is G11C (Static Stores) with 1,205 patents, ranking #8 of 882 assignees active in that subclass. Grants appear in 114 CPC subclasses total.

Is Toshiba Memory Corporation's patent grant rate increasing or decreasing?

Toshiba Memory Corporation's recent grant velocity is -22% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Toshiba Memory Corporation's patents?

Toshiba Memory Corporation's patents average 15.6 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Toshiba Memory 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Memory Corporation

USPTO PatentsView assignee record - 2,972 granted patents across 114 technology areas, recorded in grant years 2017–2024. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: G11C (Static Stores).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Toshiba ranks #128 of 49,997 tracked US assignees by granted-patent volume, with 2,972 patents across 114 technology areas.

#128
of 49,997 US assignees by volume: Top 3%
by Innovation Score (62.1/100): 15.6
avg claims per patent: -22%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R128 · Foreign Corporation #128 · 2,972 grants

GRANTS-LARGE · TOP-DECILE · NEAR-PEER · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-LARGE 3.0K grants
TOP-DECILE #128/49,997
NEAR-PEER DOW Global
CPC-WIDE G11C · 114 areas
INNOV-STRONG 62.1/100
CLAIMS-RICH 15.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -22% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: DOW Global Technologies LLC (±32 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Toshiba’s 62.1 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 27.6 pts (44%) Velocity 0.1 pts (0%) Breadth 25.0 pts (40%) Claim depth 9.4 pts (15%)

Qualcomm Incorporated · highest

85
Agency FOR Science… · near

62
Hanon Systems · near

62
Suzhou Lekin… · near

62
Toshiba Memory · this assignee

62
Quanta Computer · near

62
3D Lighting… · lowest

7

What this shows Toshiba's Innovation Score is 62.1/100 (top 3% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Toshiba?

Each dot is one of Toshiba’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Toshiba’s own 15.6 claims/patent is ABOVE the 14.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Toshiba vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Toshiba's grant cadence moved

Between 2020–2024, Toshiba Memory Corporation received 1,304 grants versus 1,668 in 2015–2019 (-22% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2020 at 759 grants and bottomed in 2024 at 1. Lead class G11C accounts for 40.5% of the portfolio across 114 subclasses. Volume neighbours: Centre National DE LA Recherche Scientifique (#124) and Comcast Cable Communications, LLC (#132).

Toshiba's three-year grant acceleration

From 2019–2021 to 2022–2024, Toshiba Memory Corporation moved from 2,005 to 37 grants (0.02x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #3,272. See the growth leaderboard.

Centre National D…

3,025
Industrial Techno…

3,023
Adobe

3,022
DOW Global

3,004
Toshiba Memory ◀

2,972
TDK

2,914
Juniper Networks

2,902
Beijing Xiaomi Mo…

2,840
Comcast Cable Com…

2,828

What this shows Toshiba holds 2,972 patents at rank #128, 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 #128 in granted patent volume.

Leaders in G11C (Static Stores)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Toshiba, neither rank-band nor same-CPC leaders (those blocks stay above). In G11C (Static Stores), Toshiba ranks #8 of 882 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (62 here).

Agency FOR Science, Technology AND Research 62 Hanon Systems 62 Suzhou Lekin Semiconductor Co., Ltd. 62 Quanta Computer Inc. 62

Similar claim depth

Nearest assignees by average claims per patent (15.6 here).

Shpp Global Technologies B.V. 15.6 avg VKR Holding A/S 15.6 avg Bard Peripheral Vascular, Inc. 15.6 avg Cellectis 15.6 avg

Toshiba's Innovation Score vs. every tracked assignee

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

62 Top 3% higher than 97% of 49,997 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 · 2017–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Toshiba Memory Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	216	7.3%
2018	714	24.0%
2019	738	24.8%
2020	759	25.5%
2021	508	17.1%
2022	34	1.1%
2023	2	0.1%
2024	1	0.0%

Which technologies does Toshiba Memory Corporation patent most?

G11C - Static Stores 1,205

H10B - Electronic Memory Devices 1,090

G06F - Electric Digital Data Processing 922

H01L - Semiconductor Devices NOT Covered BY Class H10 841

H10D - Inorganic Electric Semiconductor Devices 440

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 281

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 138

Y02D - Climate Change Mitigation Technologies IN Information AND Communication Technologies [ICT], I.E. Information AND Communication Technologies Aiming AT THE Reduction OF Their OWN Energy USE 127

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 89

H03M - CODING; DECODING; Code Conversion IN General 86

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 55

H01J - Electric Discharge Tubes OR Discharge Lamps 47

H03K - Pulse Technique 46

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 29

H04W - Wireless Communication Networks 29

Top 15 of 114 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Toshiba Memory Corporation's patent record in context - here's where to go next.

Toshiba Memory Corporation's lead technology class is G11C (Static Stores), 40.5% of its portfolio - see every assignee active in that class. Explore G11C
Ranked #128 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Toshiba Memory Corporation against Centre National DE LA Recherche Scientifique, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 62.1/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.