USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Memory Corporation

USPTO PatentsView assignee record - 2,972 granted patents across 114 technology areas, active 2017–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G11C (STATIC STORES).

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

Explore the portfolio See the ranking

2,972

Total patents granted

114

CPC technology areas

15.6

Avg claims per patent

-22%

5-year filing velocity

The verdict

Toshiba holds 2,972 US patents across 114 technology areas, rank #128 of 50,000 tracked assignees.

#128
of 50,000 US assignees by volume: Top 3%
by Innovation Score (62.1/100): 15.6
avg claims per patent: -22%
filing velocity, last 5 yrs

Portfolio overview

Toshiba Memory Corporation has been granted 2,972 US utility patents between 2017 and 2024, placing Toshiba Memory Corporation at rank #128 across all assignees tracked by PlainPatent. This portfolio spans 114 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.6 claims per patent with primary concentration in G11C (STATIC STORES). As a Foreign Corporation, Toshiba Memory Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Toshiba sits between Centre National DE LA Recherche Scientifique (3,025 patents, rank #124) and Comcast Cable Communications, Llc (2,828 patents, rank #132) - the closest US assignees by grant volume. The composite Innovation Score of 62.1/100 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 1,304 grants, compared with 1,668 in the 2015–2019 window, a -22% 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. Toshiba Memory Corporation's 15.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, 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 Toshiba Memory Corporation against peers pursuing similar technology classes.

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.

Toshiba's Innovation Score vs. every tracked assignee

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

62 Top 3% higher than 97% 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 · 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

Patent Moat Analysis

Portfolio Volume Strong

Tech Breadth Diversified

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#128

Across all tracked assignees

Innovation Score

62.1 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 Memory Corporation hold?

Toshiba Memory Corporation holds 2,972 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 114 CPC subclasses total.

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

Toshiba Memory Corporation's recent filing velocity is -22% compared to the prior five-year period. Filing 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Toshiba's 2,972 grants land it in the top 3% 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 #128 of 50,000. Top 50 holders
Most of this portfolio concentrates in G11C - see who else leads that technology area. G11C 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.