USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Toshiba Lighting & Technology Corporation

USPTO PatentsView assignee record - 121 granted patents across 28 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H05B (ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL).

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

Explore the portfolio See the ranking

121

Total patents granted

CPC technology areas

13.2

Avg claims per patent

-54%

5-year filing velocity

The verdict

Toshiba holds 121 US patents across 28 technology areas, rank #3,128 of 50,000 tracked assignees.

#3,128
of 50,000 US assignees by volume: Top 20%
by Innovation Score (46.5/100): 13.2
avg claims per patent: -54%
filing velocity, last 5 yrs

Portfolio overview

Toshiba Lighting & Technology Corporation has been granted 121 US utility patents between 2015 and 2025, placing Toshiba Lighting & Technology Corporation at rank #3,128 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.2 claims per patent with primary concentration in H05B (ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL). As a Foreign Corporation, Toshiba Lighting & Technology Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Toshiba sits between Shinkawa Ltd. (121 patents, rank #3,124) and Guardant Health, Inc. (120 patents, rank #3,132) - the closest US assignees by grant volume. The composite Innovation Score of 46.5/100 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 38 grants, compared with 83 in the 2015–2019 window, a -54% 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 Lighting & Technology Corporation's 13.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 28 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Toshiba Lighting & Technology Corporation against peers pursuing similar technology classes.

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.

Toshiba's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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 · 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%
2025	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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#3,128

Across all tracked assignees

Innovation Score

46.5 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 Lighting & Technology Corporation hold?

Toshiba Lighting & Technology Corporation holds 121 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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. The company has filed patents in 28 CPC subclasses total.

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

Toshiba Lighting & Technology Corporation's recent filing velocity is -54% compared to the prior five-year period. Filing 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Toshiba's 121 grants land it in the top 20% 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 #3,128 of 50,000. Top 50 holders
Most of this portfolio concentrates in H05B - see who else leads that technology area. H05B 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.