Where does National University Corporation Tohoku University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), National University Corporation Tohoku University ranks #11,360 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is National University Corporation Tohoku University's Innovation Score?

National University Corporation Tohoku University has an Innovation Score of 44.3 out of 100 (top 26% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does National University Corporation Tohoku University focus on?

National University Corporation Tohoku University's top technology area is A61B (DIAGNOSIS; SURGERY; Identification) with 7 patents, ranking #2,341 of 7,127 assignees active in that subclass. Grants appear in 32 CPC subclasses total.

Is National University Corporation Tohoku University's patent grant rate increasing or decreasing?

National University Corporation Tohoku University's recent grant velocity is -96% 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 National University Corporation Tohoku University's patents?

National University Corporation Tohoku University's patents average 10.2 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

National University Corporation Tohoku University

Q: How many patents does National University Corporation Tohoku University hold?

National University Corporation Tohoku University holds 27 US utility patents granted between 2015 and 2025, spanning 32 technology areas.

Q: How is the National University Corporation Tohoku 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 PatentsView assignee record - 27 granted patents across 32 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: A61B (DIAGNOSIS; SURGERY; Identification).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, National ranks #11,360 of 49,997 tracked US assignees by granted-patent volume, with 27 patents across 32 technology areas.

#11,360
of 49,997 US assignees by volume: Top 26%
by Innovation Score (44.3/100): 10.2
avg claims per patent: -96%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11360 · Foreign Corporation #11,360 · 27 grants

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

GRANTS-SMALL 27 grants
UPPER-Q #11,360/49,997
PHOTO-FINISH NanoSemi
CPC-FOCUS A61B · 32 areas
INNOV-PAR 44.3/100
CLAIMS-PAR 10.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -96% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: NanoSemi, 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 National’s 44.3 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 11.5 pts (26%) Velocity 6.7 pts (15%) Breadth 20.0 pts (45%) Claim depth 6.1 pts (14%)

Qualcomm Incorporated · highest

85
Aldeyra Therapeutics · near

44
kaleo · near

44
Sakata INX · near

44
Camtek · near

44
National University… · this assignee

44
3D Lighting… · lowest

7

What this shows National's Innovation Score is 44.3/100 (top 26% 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 National?

Each dot is one of National’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). National’s own 10.2 claims/patent is at or below the 14.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where National's grants concentrate

National University Corporation Tohoku University is a focused PatentsView assignee: 32 CPC subclasses with 25.9% of grants classified under A61B (DIAGNOSIS; SURGERY; Identification). Peak complete grant year is 2015 (10 grants) versus a trough of 1 in 2019. By volume, National sits between Nubia Technology Co., Ltd. and Origin Company, Limited.

National's three-year grant acceleration

National University Corporation Tohoku University shows 1 grants in 2022–2024 against only 1 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.

Nubia Technology

27
Nureva

27
Nuvolo

27
Nanosemi

27
Netspective Commu…

27
Nexen Tire

27
Nilfisk A/S

27
Origin

27
National Universi… ◀

27

What this shows National holds 27 patents at rank #11,367, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near National

By rank, the assignees closest to #11,367 in granted patent volume.

Leaders in A61B (Diagnosis)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for National, neither rank-band nor same-CPC leaders (those blocks stay above). In A61B (Diagnosis), National ranks #2,341 of 7,127 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (44 here).

Camtek Ltd. 44 Aldeyra Therapeutics, Inc. 44 Sakata INX Corporation 44 kaleo, Inc. 44

National's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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

National University Corporation Tohoku University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	10	37.0%
2016	7	25.9%
2017	5	18.5%
2018	2	7.4%
2019	1	3.7%
2023	1	3.7%
2025partial year	1	3.7%

Which technologies does National University Corporation Tohoku University patent most?

A61B - DIAGNOSIS; SURGERY; Identification 7

Y10T - Technical Subjects Covered BY Former US Classification 5

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 4

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 4

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 4

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 3

H01J - Electric Discharge Tubes OR Discharge Lamps 2

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 2

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

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 2

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

H10D - Inorganic Electric Semiconductor Devices 2

H01L - Semiconductor Devices NOT Covered BY Class H10 2

Top 15 of 32 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

National University Corporation Tohoku University's patent record in context - here's where to go next.

National University Corporation Tohoku University's lead technology class is A61B (DIAGNOSIS; SURGERY; Identification), 25.9% of its portfolio - see every assignee active in that class. Explore A61B
Ranked #11,360 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare National University Corporation Tohoku University against Nubia Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.3/100 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.