Where does Tohoku University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tohoku University ranks #779 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 Tohoku University hold?

Tohoku University holds 589 US utility patents granted between 2015 and 2025, spanning 210 technology areas.

What is Tohoku University's Innovation Score?

Tohoku University has an Innovation Score of 59.9 out of 100 (top 4% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tohoku University focus on?

Tohoku University's top technology area is H10N (Electric Solid-state Devices NOT Otherwise Provided FOR) with 85 patents, ranking #26 of 891 assignees active in that subclass. Grants appear in 210 CPC subclasses total.

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

Tohoku University's recent grant velocity is +18% 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 Tohoku University's patents?

Tohoku University's patents average 11.7 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 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 2015–2025 USPTO PatentsView Foreign Corporation

Tohoku University

USPTO PatentsView assignee record - 589 granted patents across 210 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: H10N (Electric Solid-state Devices NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Tohoku ranks #779 of 49,997 tracked US assignees by granted-patent volume, with 589 patents across 210 technology areas.

#779
of 49,997 US assignees by volume: Top 4%
by Innovation Score (59.9/100): 11.7
avg claims per patent: +18%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R779 · Foreign Corporation #779 · 589 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-BROAD · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 589 grants
TOP-DECILE #779/49,997
PHOTO-FINISH Carnegie Mellon…
CPC-BROAD H10N · 210 areas
INNOV-PAR 59.9/100
CLAIMS-PAR 11.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +18% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Carnegie Mellon University (±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 Tohoku’s 59.9 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 22.0 pts (37%) Velocity 5.9 pts (10%) Breadth 25.0 pts (42%) Claim depth 7.0 pts (12%)

Qualcomm Incorporated · highest

85
Institute of… · near

60
Jiangnan University · near

60
Know Labs · near

60
NuVasive · near

60
Tohoku University · this assignee

60
3D Lighting… · lowest

7

What this shows Tohoku's Innovation Score is 59.9/100 (top 4% 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 Tohoku?

Each dot is one of Tohoku’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). Tohoku’s own 11.7 claims/patent is at or below the 13.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Tohoku's grant cadence moved

Between 2020–2024, Tohoku University received 299 grants versus 253 in 2015–2019 (+18% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2020 at 73 grants and bottomed in 2017 at 42. Lead class H10N accounts for 14.4% of the portfolio across 210 subclasses. Volume neighbours: Open Text Corporation (#775) and PPG Industries Ohio, Inc. (#783).

Tohoku's three-year grant acceleration

From 2019–2021 to 2022–2024, Tohoku University moved from 184 to 162 grants (0.88x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,553. See the growth leaderboard.

Open Text

591
Baxter Healthcare

590
Carnegie Mellon U…

589
Showa Denko K K

589
Tohoku University ◀

589
Kyoto University

588
Kokusai Electric

587
Phoenix Contact &…

587
PPG Industries Oh…

586

What this shows Tohoku holds 589 patents at rank #779, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tohoku

By rank, the assignees closest to #779 in granted patent volume.

Leaders in H10N (Electric Solid-state Devices)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tohoku, neither rank-band nor same-CPC leaders (those blocks stay above). In H10N (Electric Solid-state Devices), Tohoku ranks #26 of 891 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (60 here).

NuVasive, Inc. 60 Jiangnan University 60 Institute of Geology and Geophysics, Chinese Academy of Sciences 60 Know Labs, Inc. 60

Similar claim depth

Nearest assignees by average claims per patent (11.7 here).

Safran Aircraft Engines 11.7 avg Vanda Pharmaceuticals Inc. 11.7 avg Alfred Kärcher GmbH & Co. KG 11.7 avg UNIST(ULSAN National Institute OF Science AND TECHNOLOGY) 11.7 avg

Tohoku's Innovation Score vs. every tracked assignee

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

60 Top 4% higher than 96% 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

Tohoku University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	59	10.0%
2016	60	10.2%
2017	42	7.1%
2018	45	7.6%
2019	47	8.0%
2020	73	12.4%
2021	64	10.9%
2022	59	10.0%
2023	50	8.5%
2024	53	9.0%
2025partial year	37	6.3%

Which technologies does Tohoku University patent most?

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 85

G11C - Static Stores 79

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 71

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 66

H10B - Electronic Memory Devices 63

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 62

H01L - Semiconductor Devices NOT Covered BY Class H10 55

H10D - Inorganic Electric Semiconductor Devices 54

A61B - DIAGNOSIS; SURGERY; Identification 48

C22C - Alloys 39

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 36

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 33

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 32

G06F - Electric Digital Data Processing 28

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 26

Top 15 of 210 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

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

Tohoku University's lead technology class is H10N (Electric Solid-state Devices NOT Otherwise Provided FOR), 14.4% of its portfolio - see every assignee active in that class. Explore H10N
Ranked #779 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tohoku University against Open Text Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 59.9/100 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.