Where does Toshiba Electron Tubes & Devices Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Toshiba Electron Tubes & Devices Co., Ltd. ranks #6,601 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 Electron Tubes & Devices Co., Ltd. hold?

Toshiba Electron Tubes & Devices Co., Ltd. holds 51 US utility patents granted between 2015 and 2019, spanning 17 technology areas.

What is Toshiba Electron Tubes & Devices Co., Ltd.'s Innovation Score?

Toshiba Electron Tubes & Devices Co., Ltd. has an Innovation Score of 32.1 out of 100 (40th percentile 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 Electron Tubes & Devices Co., Ltd. focus on?

Toshiba Electron Tubes & Devices Co., Ltd.'s top technology area is H01J (Electric Discharge Tubes OR Discharge Lamps) with 14 patents, ranking #152 of 1,076 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Toshiba Electron Tubes & Devices Co., Ltd.'s patent grant rate increasing or decreasing?

Toshiba Electron Tubes & Devices Co., Ltd.'s recent grant velocity is -100% 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 Electron Tubes & Devices Co., Ltd.'s patents?

Toshiba Electron Tubes & Devices Co., Ltd.'s patents average 6.5 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 Electron Tubes & Devices 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Electron Tubes & Devices Co., Ltd.

USPTO PatentsView assignee record - 51 granted patents across 17 technology areas, recorded in grant years 2015–2019. 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: H01J (Electric Discharge Tubes OR Discharge Lamps).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Toshiba ranks #6,601 of 49,997 tracked US assignees by granted-patent volume, with 51 patents across 17 technology areas.

#6,601
of 49,997 US assignees by volume: 40th percentile
by Innovation Score (32.1/100): 6.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6601 · Foreign Corporation #6,601 · 51 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 51 grants
UPPER-Q #6,601/49,997
PHOTO-FINISH Tellabs Operations
CPC-FOCUS H01J · 17 areas
INNOV-THIN 32.1/100
CLAIMS-SPARSE 6.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Tellabs Operations, Inc. (±0 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 32.1 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 13.6 pts (42%) Velocity 0.0 pts (0%) Breadth 14.6 pts (45%) Claim depth 3.9 pts (12%)

Qualcomm Incorporated · highest

85
Azla · near

32
Chapin Manufacturing · near

32
Mount Sinai School… · near

32
Toshiba Electron… · this assignee

32
Siga · near

32
3D Lighting… · lowest

7

What this shows Toshiba's Innovation Score is 32.1/100 (40th percentile 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 6.5 claims/patent is at or below the 11.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Toshiba's grants concentrate

Toshiba Electron Tubes & Devices Co., Ltd. is a focused PatentsView assignee: 17 CPC subclasses with 27.5% of grants classified under H01J (Electric Discharge Tubes OR Discharge Lamps). Peak complete grant year is 2016 (19 grants) versus a trough of 1 in 2019. By volume, Toshiba sits between Tokuyama Dental Corporation and Vestel Elektronik Sanayi ve Ticaret A. S..

Tokuyama Dental

51
Tellabs Operations

51
Tempur-pedic Mana…

51
The Quaker Oats

51
Tower Manufacturi…

51
University OF Lei…

51
VTV Therapeutics

51
Vestel Elektronik…

51
Toshiba Electron… ◀

51

What this shows Toshiba holds 51 patents at rank #6,601, 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 #6,601 in granted patent volume.

Leaders in H01J (Electric Discharge Tubes OR Discharge Lamps)

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 H01J (Electric Discharge Tubes OR Discharge Lamps), Toshiba ranks #152 of 1,076 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (32 here).

Chapin Manufacturing, Inc. 32 Mount Sinai School of Medicine 32 Azla Inc. 32 Siga Technologies, Inc. 32

Similar claim depth

Nearest assignees by average claims per patent (6.5 here).

Aliphcom 6.5 avg Runway Blue, LLC 6.5 avg A&D Company, Limited 6.5 avg Kayaba Industry Co., Ltd. 6.5 avg

Toshiba's Innovation Score vs. every tracked assignee

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

32 40th percentile higher than 40% 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 · 2015–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Toshiba Electron Tubes & Devices Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	9	17.6%
2016	19	37.3%
2017	14	27.5%
2018	8	15.7%
2019	1	2.0%

Which technologies does Toshiba Electron Tubes & Devices Co., Ltd. patent most?

H01J - Electric Discharge Tubes OR Discharge Lamps 14

G01T - Measurement OF Nuclear OR X-radiation 14

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 5

A61B - DIAGNOSIS; SURGERY; Identification 4

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 4

G21K - Techniques FOR Handling Particles OR Ionising Radiation NOT Otherwise Provided FOR; Irradiation DEVICES; Gamma RAY OR X-ray Microscopes 4

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 4

H05G - X-ray Technique 4

H04N - Pictorial Communication, e.g. Television 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

H10D - Inorganic Electric Semiconductor Devices 2

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 15 of 17 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 Electron Tubes & Devices Co., Ltd.'s patent record in context - here's where to go next.

Toshiba Electron Tubes & Devices Co., Ltd.'s lead technology class is H01J (Electric Discharge Tubes OR Discharge Lamps), 27.5% of its portfolio - see every assignee active in that class. Explore H01J
Ranked #6,601 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Toshiba Electron Tubes & Devices Co., Ltd. against Tokuyama Dental Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.1/100 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.