Where does Tabuchi Electric Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tabuchi Electric Co., Ltd. ranks #17,251 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 Tabuchi Electric Co., Ltd. hold?

Tabuchi Electric Co., Ltd. holds 17 US utility patents granted between 2017 and 2021, spanning 12 technology areas.

What is Tabuchi Electric Co., Ltd.'s Innovation Score?

Tabuchi Electric Co., Ltd. has an Innovation Score of 26.6 out of 100 (21st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Tabuchi Electric Co., Ltd.'s patent grant rate increasing or decreasing?

Tabuchi Electric Co., Ltd.'s recent grant velocity is -69% 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 Tabuchi Electric Co., Ltd.'s patents?

Tabuchi Electric Co., Ltd.'s patents average 7.2 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.

How is the Tabuchi Electric 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

Tabuchi Electric Co., Ltd.

Q: What technology areas does Tabuchi Electric Co., Ltd. focus on?

Tabuchi Electric Co., Ltd.'s top technology area is H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy) with 11 patents, ranking #490 of 3,143 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 17 granted patents across 12 technology areas, recorded in grant years 2017–2021. 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: H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tabuchi ranks #17,251 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 12 technology areas.

#17,251
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.6/100): 7.2
avg claims per patent: -69%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17251 · Foreign Corporation #17,251 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 17 grants
MID-PACK #17,251/49,997
PHOTO-FINISH Swimways
CPC-FOCUS H02J · 12 areas
INNOV-THIN 26.6/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -69% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Swimways Corporation (±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 Tabuchi’s 26.6 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 10.0 pts (38%) Velocity 0.0 pts (0%) Breadth 12.2 pts (46%) Claim depth 4.3 pts (16%)

Qualcomm Incorporated · highest

85
Tabuchi Electric · this assignee

27
3D Lighting… · lowest

7

What this shows Tabuchi's Innovation Score is 26.6/100 (21st 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 Tabuchi?

Each dot is one of Tabuchi’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). Tabuchi’s own 7.2 claims/patent is at or below the 13.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tabuchi's grants concentrate

Tabuchi Electric Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 64.7% of grants classified under H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy). Peak complete grant year is 2019 (7 grants) versus a trough of 1 in 2021. By volume, Tabuchi sits between Swimways Corporation and TDF.

Swimways

17
Syndiant

17
Systems and Softw…

17
T A G Medical Pro…

17
Taiwan Joca

17
Taiyo Holdings

17
Taiyo INK MFG

17
TDF

17
Tabuchi Electric ◀

17

What this shows Tabuchi holds 17 patents at rank #17,249, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tabuchi

By rank, the assignees closest to #17,249 in granted patent volume.

Leaders in H02J (Circuit Arrangements OR Systems FOR Supplying OR Distribu…)

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

Tabuchi's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2017–2021

Grants by year

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

View data table

Tabuchi Electric Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	11.8%
2018	4	23.5%
2019	7	41.2%
2020	3	17.6%
2021	1	5.9%

Which technologies does Tabuchi Electric Co., Ltd. patent most?

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 11

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 11

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 8

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 3

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

H03H - Impedance Networks, e.g. Resonant CIRCUITS; Resonators 2

H02H - Emergency Protective Circuit Arrangements 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 1

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 1

G05F - Systems FOR Regulating Electric OR Magnetic Variables 1

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

Top 12 of 12 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

Tabuchi Electric Co., Ltd.'s patent record in context - here's where to go next.

Tabuchi Electric Co., Ltd.'s lead technology class is H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy), 64.7% of its portfolio - see every assignee active in that class. Explore H02J
Ranked #17,251 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tabuchi Electric Co., Ltd. against Swimways Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.6/100 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.