Where does Tachikawa Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tachikawa Corporation ranks #33,516 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 Tachikawa Corporation hold?

Tachikawa Corporation holds 8 US utility patents granted between 2015 and 2021, spanning 4 technology areas.

What is Tachikawa Corporation's Innovation Score?

Tachikawa Corporation has an Innovation Score of 18.3 out of 100 (5th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Tachikawa Corporation's patent grant rate increasing or decreasing?

Tachikawa Corporation's recent grant velocity is -86% 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 Tachikawa Corporation's patents?

Tachikawa Corporation's patents average 6.0 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 Tachikawa 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 2015–2025 USPTO PatentsView Foreign Corporation

Tachikawa Corporation

Q: What technology areas does Tachikawa Corporation focus on?

Tachikawa Corporation's top technology area is E06B (Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates) with 5 patents. Grants appear in 4 CPC subclasses total.

USPTO PatentsView assignee record - 8 granted patents across 4 technology areas, recorded in grant years 2015–2021. 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: E06B (Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tachikawa ranks #33,516 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 4 technology areas.

#33,516
of 49,997 US assignees by volume: 5th percentile
by Innovation Score (18.3/100): 6.0
avg claims per patent: -86%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33516 · Foreign Corporation #33,516 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,516/49,997
PHOTO-FINISH Süddeutsche…
CPC-NARROW E06B · 4 areas
INNOV-LOW 18.3/100
CLAIMS-SPARSE 6.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -86% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG; (±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.

Qualcomm Incorporated · highest

85
Tachikawa · this assignee

18
3D Lighting… · lowest

7

What this shows Tachikawa's Innovation Score is 18.3/100 (5th 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.

Where Tachikawa's grants concentrate

Tachikawa Corporation is a focused PatentsView assignee: 4 CPC subclasses with 62.5% of grants classified under E06B (Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates). Peak complete grant year is 2017 (3 grants) versus a trough of 1 in 2015. By volume, Tachikawa sits between Synthro Inc. and Taidoc Technology Corporation.

Synthro

8
Süddeutsche Gelen…

8
T6 Health Systems

8
Tabata

8
Tactile Displays

8
Tagcyx Biotechnol…

8
Tagore Technology

8
Taidoc Technology

8
Tachikawa ◀

8

What this shows Tachikawa holds 8 patents at rank #33,499, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tachikawa

By rank, the assignees closest to #33,499 in granted patent volume.

Leaders in E06B (Fixed OR Movable Closures FOR Openings IN Buildings)

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

Tachikawa's Innovation Score vs. every tracked assignee

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

18 5th percentile higher than 5% 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 · 2015–2021

Grants by year

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

View data table

Tachikawa Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	12.5%
2016	1	12.5%
2017	3	37.5%
2019	2	25.0%
2021	1	12.5%

Which technologies does Tachikawa Corporation patent most?

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 5

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 1

Y10T - Technical Subjects Covered BY Former US Classification 1

A47H - Furnishings FOR Windows OR Doors 1

Top 4 of 4 technology areas

Where it ranks

Overall rank by patents

#33,516

of 49,997 tracked assignees

Innovation Score

18.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Tachikawa Corporation's patent record in context - here's where to go next.

Tachikawa Corporation's lead technology class is E06B (Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates), 62.5% of its portfolio - see every assignee active in that class. Explore E06B
Ranked #33,516 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tachikawa Corporation against Synthro Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 18.3/100 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.