Where does Aoyama Seisakusho Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Aoyama Seisakusho Co., Ltd. ranks #10,541 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 Aoyama Seisakusho Co., Ltd. hold?

Aoyama Seisakusho Co., Ltd. holds 29 US utility patents granted between 2015 and 2024, spanning 15 technology areas.

What is Aoyama Seisakusho Co., Ltd.'s Innovation Score?

Aoyama Seisakusho Co., Ltd. has an Innovation Score of 36.4 out of 100 (top 46% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Aoyama Seisakusho Co., Ltd.'s patent grant rate increasing or decreasing?

Aoyama Seisakusho Co., Ltd.'s recent grant velocity is +42% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Aoyama Seisakusho Co., Ltd.'s patents?

Aoyama Seisakusho Co., Ltd.'s patents average 4.7 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 Aoyama Seisakusho 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

Aoyama Seisakusho Co., Ltd.

Q: What technology areas does Aoyama Seisakusho Co., Ltd. focus on?

Aoyama Seisakusho Co., Ltd.'s top technology area is F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing) with 28 patents, ranking #25 of 2,095 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

USPTO PatentsView assignee record - 29 granted patents across 15 technology areas, recorded in grant years 2015–2024. 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: F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Aoyama ranks #10,541 of 49,997 tracked US assignees by granted-patent volume, with 29 patents across 15 technology areas.

#10,541
of 49,997 US assignees by volume: Top 46%
by Innovation Score (36.4/100): 4.7
avg claims per patent: +42%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10541 · Foreign Corporation #10,541 · 29 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 29 grants
UPPER-Q #10,541/49,997
PHOTO-FINISH AHLSTROM-MUNKSJÖ OYJ
CPC-FOCUS F16B · 15 areas
INNOV-THIN 36.4/100
CLAIMS-SPARSE 4.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +42% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: AHLSTROM-MUNKSJÖ OYJ (±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 Aoyama’s 36.4 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 11.7 pts (32%) Velocity 8.1 pts (22%) Breadth 13.7 pts (38%) Claim depth 2.8 pts (8%)

Qualcomm Incorporated · highest

85
Aoyama Seisakusho · this assignee

36
Goal Zero · near

36
Kaijo · near

36
Manitou BF · near

36
Michel VAN DE Wiele · near

36
3D Lighting… · lowest

7

What this shows Aoyama's Innovation Score is 36.4/100 (top 46% 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 Aoyama?

Each dot is one of Aoyama’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). Aoyama’s own 4.7 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Aoyama's grants concentrate

Aoyama Seisakusho Co., Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 96.6% of grants classified under F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing). Peak complete grant year is 2024 (6 grants) versus a trough of 1 in 2022. By volume, Aoyama sits between AHLSTROM-MUNKSJÖ OYJ and Asti Global Inc., Taiwan.

Aoyama's three-year grant acceleration

Aoyama Seisakusho Co., Ltd. shows 11 grants in 2022–2024 against only 9 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.

Ahlstrom-munksjÖ…

29
Amcor Flexibles N…

29
Ameriforge Group

29
Ametek

29
Apogenix

29
Arburg + KG

29
Archery Innovators

29
Asti Global Taiwan

29
Aoyama Seisakusho ◀

29

What this shows Aoyama holds 29 patents at rank #10,530, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Aoyama

By rank, the assignees closest to #10,530 in granted patent volume.

Leaders in F16B (Devices FOR Fastening OR Securing Constructional Elements…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Aoyama, neither rank-band nor same-CPC leaders (those blocks stay above). In F16B (Devices FOR Fastening OR Securing Constructional Elements…), Aoyama ranks #25 of 2,095 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (36 here).

Kaijo Corporation 36 Manitou BF 36 NV Michel VAN DE Wiele 36 Goal Zero LLC 36

Aoyama's Innovation Score vs. every tracked assignee

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

36 Top 46% higher than 54% 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 · 2015–2024

Grants by year

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

View data table

Aoyama Seisakusho Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	6.9%
2016	3	10.3%
2017	2	6.9%
2018	2	6.9%
2019	3	10.3%
2020	4	13.8%
2021	2	6.9%
2022	1	3.4%
2023	4	13.8%
2024	6	20.7%

Which technologies does Aoyama Seisakusho Co., Ltd. patent most?

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 28

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 3

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 3

B62D - Motor VEHICLES; Trailers 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 2

B21K - Making Forged OR Pressed Metal Products, e.g. Horse-shoes, Rivets, Bolts OR Wheels 1

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

C22C - Alloys 1

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 1

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

Top 15 of 15 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

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

Aoyama Seisakusho Co., Ltd.'s lead technology class is F16B (Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing), 96.6% of its portfolio - see every assignee active in that class. Explore F16B
Ranked #10,541 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Aoyama Seisakusho Co., Ltd. against AHLSTROM-MUNKSJÖ OYJ, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.4/100 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.