Where does Yamauchi Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Yamauchi Corp. ranks #23,708 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 Yamauchi Corp. hold?

Yamauchi Corp. holds 12 US utility patents granted between 2016 and 2023, spanning 21 technology areas.

What is Yamauchi Corp.'s Innovation Score?

Yamauchi Corp. has an Innovation Score of 36.3 out of 100 (top 47% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Yamauchi Corp. focus on?

Yamauchi Corp.'s top technology area is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form) with 7 patents, ranking #559 of 3,088 assignees active in that subclass. Grants appear in 21 CPC subclasses total.

Is Yamauchi Corp.'s patent grant rate increasing or decreasing?

Yamauchi Corp.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Yamauchi Corp.'s patents?

Yamauchi Corp.'s patents average 7.7 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 Yamauchi Corp. 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

Yamauchi Corp.

USPTO PatentsView assignee record - 12 granted patents across 21 technology areas, recorded in grant years 2016–2023. 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: B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Yamauchi ranks #23,708 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 21 technology areas.

#23,708
of 49,997 US assignees by volume: Top 47%
by Innovation Score (36.3/100): 7.7
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R23708 · Foreign Corporation #23,708 · 12 grants

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

GRANTS-MICRO 12 grants
MID-PACK #23,708/49,997
PHOTO-FINISH Xitore
CPC-FOCUS B32B · 21 areas
INNOV-THIN 36.3/100
CLAIMS-SPARSE 7.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Xitore, 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 Yamauchi’s 36.3 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 8.9 pts (24%) Velocity 6.7 pts (18%) Breadth 16.2 pts (45%) Claim depth 4.6 pts (13%)

Qualcomm Incorporated · highest

85
Yamauchi · this assignee

36
3D Lighting… · lowest

7

What this shows Yamauchi's Innovation Score is 36.3/100 (top 47% 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 Yamauchi?

Each dot is one of Yamauchi’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). Yamauchi’s own 7.7 claims/patent is at or below the 8.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Yamauchi's grants concentrate

Yamauchi Corp. is a focused PatentsView assignee: 21 CPC subclasses with 58.3% of grants classified under B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form). Peak complete grant year is 2023 (4 grants) versus a trough of 1 in 2016. By volume, Yamauchi sits between Xitore, Inc. and Yagi Corp..

Yamauchi's three-year grant acceleration

Yamauchi Corp. shows 5 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Xitore

12
Xoc Pharmaceutica…

12
Y-biologics

12
Yamamoto Kogaku

12
Yancheng Institut…

12
YU Jing Technology

12
Yuan LI Hsing Ind…

12
Yagi

12
Yamauchi ◀

12

What this shows Yamauchi holds 12 patents at rank #23,694, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yamauchi

By rank, the assignees closest to #23,694 in granted patent volume.

Leaders in B32B (Layered Products)

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

Yamauchi's Innovation Score vs. every tracked assignee

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

36 Top 47% higher than 53% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Yamauchi Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	8.3%
2018	1	8.3%
2019	2	16.7%
2020	1	8.3%
2021	2	16.7%
2022	1	8.3%
2023	4	33.3%

Which technologies does Yamauchi Corp. patent most?

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 7

B30B - Presses IN General 6

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 6

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 4

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 3

D21F - Paper-making MACHINES; Methods OF Producing Paper Thereon 3

C08L - Compositions OF Macromolecular Compounds 3

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 3

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 2

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 2

D06F - Laundering, Drying, Ironing, Pressing OR Folding Textile Articles 2

Y10T - Technical Subjects Covered BY Former US Classification 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 1

D04H - Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation 1

D06N - Wall, Floor, OR Like Covering Materials, e.g. Linoleum, Oilcloth, Artificial Leather, Roofing Felt, Consisting OF A Fibrous WEB Coated With A Layer OF Macromolecular MATERIAL; Flexible Sheet Material NOT Otherwise Provided FOR 1

Top 15 of 21 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

Yamauchi Corp.'s patent record in context - here's where to go next.

Yamauchi Corp.'s lead technology class is B32B (Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form), 58.3% of its portfolio - see every assignee active in that class. Explore B32B
Ranked #23,708 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Yamauchi Corp. against Xitore, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.3/100 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.