Where does Toshiba Lighting & Technology Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Toshiba Lighting & Technology Corporation ranks #3,128 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 Lighting & Technology Corporation hold?

Toshiba Lighting & Technology Corporation holds 121 US utility patents granted between 2015 and 2025, spanning 28 technology areas.

What is Toshiba Lighting & Technology Corporation's Innovation Score?

Toshiba Lighting & Technology Corporation has an Innovation Score of 46.5 out of 100 (top 20% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Toshiba Lighting & Technology Corporation's patent grant rate increasing or decreasing?

Toshiba Lighting & Technology Corporation's recent grant velocity is -60% 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 Lighting & Technology Corporation's patents?

Toshiba Lighting & Technology Corporation's patents average 13.2 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Lighting & Technology Corporation

Q: What technology areas does Toshiba Lighting & Technology Corporation focus on?

Toshiba Lighting & Technology Corporation's top technology area is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General) with 54 patents, ranking #74 of 2,247 assignees active in that subclass. Grants appear in 28 CPC subclasses total.

Q: How is the Toshiba Lighting & Technology 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 PatentsView assignee record - 121 granted patents across 28 technology areas, recorded in grant years 2015–2025. 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: H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Toshiba ranks #3,128 of 49,997 tracked US assignees by granted-patent volume, with 121 patents across 28 technology areas.

#3,128
of 49,997 US assignees by volume: Top 20%
by Innovation Score (46.5/100): 13.2
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3128 · Foreign Corporation #3,128 · 121 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 121 grants
TOP-DECILE #3,128/49,997
PHOTO-FINISH Shinkawa
CPC-FOCUS H05B · 28 areas
INNOV-PAR 46.5/100
CLAIMS-RICH 13.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Shinkawa Ltd. (±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 46.5 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 16.6 pts (36%) Velocity 3.3 pts (7%) Breadth 18.7 pts (40%) Claim depth 7.9 pts (17%)

Qualcomm Incorporated · highest

85
Ambarella · near

47
Blueair AB · near

47
Genmab A/S · near

47
Nasdaq Technology AB · near

47
Toshiba Lighting &… · this assignee

47
3D Lighting… · lowest

7

What this shows Toshiba's Innovation Score is 46.5/100 (top 20% 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 13.2 claims/patent is ABOVE the 10.3 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.

Where Toshiba's grants concentrate

Toshiba Lighting & Technology Corporation is a focused PatentsView assignee: 28 CPC subclasses with 44.6% of grants classified under H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General). Peak complete grant year is 2015 (32 grants) versus a trough of 4 in 2022. By volume, Toshiba sits between Shinkawa Ltd. and Guardant Health, Inc..

Toshiba's three-year grant acceleration

From 2019–2021 to 2022–2024, Toshiba Lighting & Technology Corporation moved from 30 to 15 grants (0.50x 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 #2,691. See the growth leaderboard.

Shinkawa

121
Sunrise Memory

121
Shukla Medical

121
Shutterfly

121
Toshiba Lighting… ◀

121
Atombeam

120
Edwards Japan

120
GRG Banking Equip…

120
Guardant Health

120

What this shows Toshiba holds 121 patents at rank #3,128, 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 #3,128 in granted patent volume.

Leaders in H05B (Electric Heating)

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 H05B (Electric Heating), Toshiba ranks #74 of 2,247 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Ambarella, Inc. 47 Nasdaq Technology AB 47 Genmab A/S 47 Blueair AB 47

Similar claim depth

Nearest assignees by average claims per patent (13.2 here).

Merlin Technology Inc. 13.2 avg Gyrus Medical Limited 13.2 avg ThyssenKrupp Steel Europe AG 13.2 avg HBI Branded Apparel Enterprises, LLC 13.2 avg

Toshiba's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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 · 2015–2025

Grants by year

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

View data table

Toshiba Lighting & Technology Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	32	26.4%
2016	21	17.4%
2017	13	10.7%
2018	5	4.1%
2019	12	9.9%
2020	10	8.3%
2021	8	6.6%
2022	4	3.3%
2023	6	5.0%
2024	5	4.1%
2025partial year	5	4.1%

Which technologies does Toshiba Lighting & Technology Corporation patent most?

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 54

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 52

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 51

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 49

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 24

F21K - Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-generating ELEMENTS; Light Sources NOT Otherwise Provided FOR 21

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 14

B60Q - Arrangement OF Signalling OR Lighting Devices, THE Mounting OR Supporting Thereof OR Circuits Therefor, FOR Vehicles IN General 13

H01L - Semiconductor Devices NOT Covered BY Class H10 13

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 10

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 9

G03G - ELECTROGRAPHY; ELECTROPHOTOGRAPHY; Magnetography 8

H01J - Electric Discharge Tubes OR Discharge Lamps 5

H01K - Electric Incandescent Lamps 4

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 4

Top 15 of 28 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 Lighting & Technology Corporation's patent record in context - here's where to go next.

Toshiba Lighting & Technology Corporation's lead technology class is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General), 44.6% of its portfolio - see every assignee active in that class. Explore H05B
Ranked #3,128 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Toshiba Lighting & Technology Corporation against Shinkawa Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.5/100 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.