PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tokin Corporation

USPTO PatentsView assignee record - 61 granted patents across 39 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES).

Explore the portfolio See the ranking
61
Total patents granted
39
CPC technology areas
10.5
Avg claims per patent
+100%
5-year grant velocity

The verdict

According to USPTO PatentsView, Tokin ranks #5,636 of 50,000 tracked US assignees by granted-patent volume, with 61 patents across 39 technology areas.

#5,636
of 50,000 US assignees by volume
Top 18%
by Innovation Score (47.7/100)
10.5
avg claims per patent
+100%
grant velocity, last 5 yrs

Portfolio overview

Tokin Corporation has been granted 61 US utility patents between 2015 and 2025, placing Tokin Corporation at #5,636 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 39 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.5 claims per patent with primary concentration in H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES). As a Foreign Corporation, Tokin Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Tokin sits between Science Applications International Corporation (61 patents, rank #5,629) and Tyfone, Inc. (61 patents, rank #5,637) - the closest US assignees by grant volume. The composite Innovation Score of 47.7/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 36 grants, compared with 18 in the 2015–2019 window, a +100% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Tokin Corporation's 10.5 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 39 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Who files at Tokin's volume?

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

patents

What this shows Tokin holds 61 patents at rank #5,633, 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 Tokin

By rank, the assignees closest to #5,633 in granted patent volume.

Leaders in H01F (Magnets)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tokin, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (48 here).

ADC Telecommunications, Inc. 48 Cooler Master Development Corporation 48 Scientific Drilling International, Inc. 48 Anokiwave, Inc. 48

Similar claim depth

Nearest assignees by average claims per patent (10.5 here).

National University OF Defense Technology 10.5 avg KDDI Corporation 10.5 avg Denso Corporation 10.5 avg Microsemi Soc Corp. 10.5 avg

Tokin's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). This entry sits in this band. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. 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

0246810 2015201720182019202020212022202320242025 7
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
Tokin Corporation patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 1 1.6%
2017 5 8.2%
2018 4 6.6%
2019 8 13.1%
2020 8 13.1%
2021 9 14.8%
2022 4 6.6%
2023 7 11.5%
2024 8 13.1%
2025partial year 7 11.5%

Which technologies does Tokin Corporation patent most?

Top 15 of 39 technology areas

Grant record at a glance

Portfolio Volume 61 grants
CPC subclasses 39
Avg. claims / grant 10.5
Velocity +100%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#5,636

of 50,000 tracked assignees

Innovation Score

47.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Tokin Corporation rank among US patent assignees?
According to USPTO PatentsView (2015–2025 granted utility patents), Tokin Corporation ranks #5,636 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.
How many patents does Tokin Corporation hold?
Tokin Corporation holds 61 US utility patents granted between 2015 and 2025, spanning 39 technology areas.
What is Tokin Corporation's Innovation Score?
Tokin Corporation has an Innovation Score of 47.7 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Tokin Corporation focus on?
Tokin Corporation's top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES) with 34 patents. Grants appear in 39 CPC subclasses total.
Is Tokin Corporation's patent grant rate increasing or decreasing?
Tokin Corporation's recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.
What does claim depth mean for Tokin Corporation's patents?
Tokin Corporation's patents average 10.5 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 Tokin Corporation 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.

How to use this portfolio

Tokin's 61 grants land it in the top 18% by Innovation Score, but volume alone doesn't tell you where the strength sits.

  • Read that count against the largest US assignees before treating it as dominance - Tokin ranks #5,636 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in H01F - see who else leads that technology area. H01F leaders
  • Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.