Where does Hirosaki University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hirosaki University ranks #9,788 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 Hirosaki University hold?

Hirosaki University holds 32 US utility patents granted between 2015 and 2025, spanning 46 technology areas.

What is Hirosaki University's Innovation Score?

Hirosaki University has an Innovation Score of 45.8 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hirosaki University focus on?

Hirosaki University's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 12 patents, ranking #1,245 of 7,863 assignees active in that subclass. Grants appear in 46 CPC subclasses total.

Is Hirosaki University's patent grant rate increasing or decreasing?

Hirosaki University's recent grant velocity is -28% 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 Hirosaki University's patents?

Hirosaki University's patents average 8.5 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 Hirosaki University 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

Hirosaki University

USPTO PatentsView assignee record - 32 granted patents across 46 technology areas, recorded in grant years 2015–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hirosaki ranks #9,788 of 49,997 tracked US assignees by granted-patent volume, with 32 patents across 46 technology areas.

#9,788
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.8/100): 8.5
avg claims per patent: -28%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9788 · Foreign Corporation #9,788 · 32 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 32 grants
UPPER-Q #9,788/49,997
PHOTO-FINISH Haldex Brake…
CPC-WIDE G01N · 46 areas
INNOV-PAR 45.8/100
CLAIMS-PAR 8.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -28% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Haldex Brake Products AB (±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 Hirosaki’s 45.8 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 12.1 pts (26%) Velocity 4.7 pts (10%) Breadth 24.0 pts (52%) Claim depth 5.1 pts (11%)

Qualcomm Incorporated · highest

85
Fetch Robotics · near

46
Greene Tweed · near

46
Hirosaki University · this assignee

46
NovAtel · near

46
Xiamen San'an… · near

46
3D Lighting… · lowest

7

What this shows Hirosaki's Innovation Score is 45.8/100 (top 22% 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 Hirosaki?

Each dot is one of Hirosaki’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). Hirosaki’s own 8.5 claims/patent is at or below the 9.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hirosaki's grants concentrate

Hirosaki University is a focused PatentsView assignee: 46 CPC subclasses with 37.5% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2018 (6 grants) versus a trough of 1 in 2024. By volume, Hirosaki sits between Hamanakodenso Co., Ltd. and Harman Professional Denmark Aps.

Hirosaki's three-year grant acceleration

Hirosaki University shows 7 grants in 2022–2024 against only 10 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.

Hamanakodenso

32
Hanwit Precision…

32
Heesung Catalysts

32
Herbert Waldmann…

32
Haldex Brake Prod…

32
Halliburton Manuf…

32
Harima Chemicals…

32
Harman Profession…

32
Hirosaki Universi… ◀

32

What this shows Hirosaki holds 32 patents at rank #9,783, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hirosaki

By rank, the assignees closest to #9,783 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hirosaki, neither rank-band nor same-CPC leaders (those blocks stay above). In G01N (Investigating OR Analysing Materials BY Determining Their…), Hirosaki ranks #1,245 of 7,863 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Fetch Robotics, Inc. 46 NovAtel Inc. 46 Xiamen San'an Optoelectronics Co., Ltd. 46 Greene, Tweed Technologies, Inc. 46

Hirosaki's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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 · 2015–2025

Grants by year

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

View data table

Hirosaki University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	6.3%
2016	2	6.3%
2017	4	12.5%
2018	6	18.8%
2019	4	12.5%
2020	4	12.5%
2021	2	6.3%
2022	2	6.3%
2023	4	12.5%
2024	1	3.1%
2025partial year	1	3.1%

Which technologies does Hirosaki University patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 12

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 6

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 5

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 4

C07H - SUGARS; Derivatives THEREOF; NUCLEOSIDES; NUCLEOTIDES; Nucleic Acids 3

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 3

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 3

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 3

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 2

A61B - DIAGNOSIS; SURGERY; Identification 2

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 2

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 2

A61Q - Specific USE OF Cosmetics OR Similar Toiletry Preparations 2

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 2

C12Y - Enzymes 2

Top 15 of 46 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

Hirosaki University's patent record in context - here's where to go next.

Hirosaki University's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 37.5% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #9,788 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hirosaki University against Hamanakodenso Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.8/100 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.