PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tohoku Magnet Institute Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 5 technology areas, recorded in grant years 2017–2022. 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties).

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The verdict

According to USPTO PatentsView, Tohoku ranks #37,978 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 5 technology areas.

#37,978
of 49,997 US assignees by volume
14th percentile
by Innovation Score (24.4/100)
13.3
avg claims per patent
+33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37978 · Foreign Corporation #37,978 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-UP · BOOK-FULL

  • GRANTS-MICRO 7 grants
  • LOWER-Q #37,978/49,997
  • PHOTO-FINISH Tivic Health Systems
  • CPC-NARROW H01F · 5 areas
  • INNOV-THIN 24.4/100
  • CLAIMS-RICH 13.3 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-UP +33% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Tivic Health Systems 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 Tohoku’s 24.4 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Tohoku

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Tohoku's Innovation Score is 24.4/100 (14th percentile 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

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 13.3 claims/patent is ABOVE the 11.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Tohoku vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 6.97.07.077.07.07.1 010203040 Granted patents (volume) Avg claims / patent Tivic Health Systems Inc. - 7, 22.57Tivic Health Syst…Toadfish LLC - 7, 5ToadfishToaster Labs, Inc. - 7, 20.86Toaster LabsToddy Tech, LLC - 7, 30.71Toddy TechTokyo Denki University - 7, 11.86Tokyo Denki Unive…Tooth Fairy Designs, Inc. - 7, 8Tooth Fairy Desig…Toothshower, LLC - 7, 6.86ToothshowerTopper Manufacturing Corporation - 7, 16.29Topper Manufactur…Tohoku Magnet Institute Co., Ltd. - 7, 13.29Tohoku Magnet Ins…
Tohoku vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Tohoku's grants concentrate

Tohoku Magnet Institute Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 85.7% of grants classified under H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2017. By volume, Tohoku sits between Tivic Health Systems Inc. and Topper Manufacturing Corporation.

Tohoku's three-year grant acceleration

Tohoku Magnet Institute Co., Ltd. shows 1 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.

Who files at Tohoku's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Tohoku holds 7 patents at rank #37,996, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Tohoku

By rank, the assignees closest to #37,996 in granted patent volume.

Leaders in H01F (Magnets)

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 H01F (Magnets), Tohoku ranks #276 of 1,360 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (24 here).

Brandywine Product Group International Inc. 24 Variable, Inc. 24 Furrion Property Holding Limited 24 Medigenebio Corporation 24

Tohoku's Innovation Score vs. every tracked assignee

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

24 14th percentile higher than 14% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.533.5 2017201920202022 1
USPTO utility patent grants by year · 2017–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table
Tohoku Magnet Institute Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 1 14.3%
2019 2 28.6%
2020 3 42.9%
2022 1 14.3%

Which technologies does Tohoku Magnet Institute Co., Ltd. patent most?

Top 5 of 5 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 Magnet Institute Co., Ltd.'s patent record in context - here's where to go next.

  • Tohoku Magnet Institute Co., Ltd.'s lead technology class is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties), 85.7% of its portfolio - see every assignee active in that class. Explore H01F
  • Ranked #37,978 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Tohoku Magnet Institute Co., Ltd. against Tivic Health Systems Inc., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 24.4/100 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

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.