PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Shizuoka Prefectural University Corporation

USPTO PatentsView assignee record - 6 granted patents across 9 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES).

Explore the portfolio See the ranking
6
Total patents granted
9
CPC technology areas
11.0
Avg claims per patent
+400%
5-year filing velocity

The verdict

Shizuoka holds 6 US patents across 9 technology areas, rank #42,879 of 50,000 tracked assignees.

#42,879
of 50,000 US assignees by volume
Top 77%
by Innovation Score (27.3/100)
11.0
avg claims per patent
+400%
filing velocity, last 5 yrs

Portfolio overview

Shizuoka Prefectural University Corporation has been granted 6 US utility patents between 2018 and 2025, placing Shizuoka Prefectural University Corporation at rank #42,879 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.0 claims per patent with primary concentration in A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES). As a Foreign Corporation, Shizuoka Prefectural University Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Shizuoka sits between Shinko Metal Products Co., Ltd. (6 patents, rank #42,875) and Shummi Enterprise Co., Ltd. (6 patents, rank #42,883) - the closest US assignees by grant volume. The composite Innovation Score of 27.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 5 grants, compared with 1 in the 2015–2019 window, a +400% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Shizuoka Prefectural University Corporation's 11.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Shizuoka Prefectural University Corporation against peers pursuing similar technology classes.

Who files at Shizuoka's volume?

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

patents

What this shows Shizuoka holds 6 patents at rank #42,879, 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 Shizuoka

By rank, the assignees closest to #42,879 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Shizuoka's Innovation Score vs. every tracked assignee

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

27 Top 77% higher than 23% 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%). This entry sits in this band. 30–40: 15,294 US assignees (31%). Above this entry. 40–50: 11,491 US assignees (23%). Above this entry. 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

0.511.522.5 20182020202120222025 2
USPTO utility patent grants by year · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table
Shizuoka Prefectural University Corporation patent grants by year, 2015–2025
Year Patents Granted Share of Period
2018 1 16.7%
2020 1 16.7%
2021 1 16.7%
2022 1 16.7%
2025 2 33.3%

Which technologies does Shizuoka Prefectural University Corporation patent most?

Top 9 of 9 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Focused
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#42,879

Across all tracked assignees

Innovation Score

27.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Shizuoka Prefectural University Corporation hold?
Shizuoka Prefectural University Corporation holds 6 US granted patents filed between 2018 and 2025, spanning 9 technology areas.
What is Shizuoka Prefectural University Corporation's Innovation Score?
Shizuoka Prefectural University Corporation has an Innovation Score of 27.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Shizuoka Prefectural University Corporation focus on?
Shizuoka Prefectural University Corporation's top technology area is A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES) with 5 patents. The company has filed patents in 9 CPC subclasses total.
Is Shizuoka Prefectural University Corporation's patent filing rate increasing or decreasing?
Shizuoka Prefectural University Corporation's recent filing velocity is +400% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for Shizuoka Prefectural University Corporation's patents?
Shizuoka Prefectural University Corporation's patents average 11.0 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Shizuoka Prefectural University 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

Shizuoka's 6 grants land it in the top 77% 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 - Shizuoka ranks #42,879 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in A61K - see who else leads that technology area. A61K 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 Editorial

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.