USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Yokohama National University

USPTO PatentsView assignee record - 7 granted patents across 12 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A63B (APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

9.6

Avg claims per patent

-83%

5-year filing velocity

The verdict

Yokohama holds 7 US patents across 12 technology areas, rank #38,382 of 50,000 tracked assignees.

#38,382
of 50,000 US assignees by volume: Top 83%
by Innovation Score (25.2/100): 9.6
avg claims per patent: -83%
filing velocity, last 5 yrs

Portfolio overview

Yokohama National University has been granted 7 US utility patents between 2015 and 2021, placing Yokohama National University at rank #38,382 across all assignees tracked by PlainPatent. This portfolio spans 12 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.6 claims per patent with primary concentration in A63B (APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT). As a Foreign Corporation, Yokohama National University is one of the more focused assignees in the PatentsView dataset. By volume, Yokohama sits between Yang Bey Industrial Co., Ltd. (7 patents, rank #38,378) and Yourbio Health, Inc. (7 patents, rank #38,386) - the closest US assignees by grant volume. The composite Innovation Score of 25.2/100 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 1 grants, compared with 6 in the 2015–2019 window, a -83% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Yokohama National University's 9.6 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 12 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Yokohama National University against peers pursuing similar technology classes.

Yang Bey Industri…

7
Yield10 Bioscience

7
Yikes

7
Yisheng Biopharma…

7
Yong San

7
Yost Labs

7
Youspace

7
Yourbio Health

7
Yokohama National… ◀

7

What this shows Yokohama holds 7 patents at rank #38,382, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Yokohama

By rank, the assignees closest to #38,382 in granted patent volume.

Leaders in A63B (Apparatus FOR Physical Training)

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

Yokohama's Innovation Score vs. every tracked assignee

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

25 Top 83% higher than 17% of 50,000 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 · 2015–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Yokohama National University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	28.6%
2016	1	14.3%
2017	1	14.3%
2019	2	28.6%
2021	1	14.3%

Which technologies does Yokohama National University patent most?

A63B - APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 1

G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 1

C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS 1

C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING 1

C10M - LUBRICATING COMPOSITIONS ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION 1

C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS 1

C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR 1

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 1

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1

Top 12 of 12 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#38,382

Across all tracked assignees

Innovation Score

25.2 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 Yokohama National University hold?

Yokohama National University holds 7 US granted patents filed between 2015 and 2021, spanning 12 technology areas.

What is Yokohama National University's Innovation Score?

Yokohama National University has an Innovation Score of 25.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Yokohama National University focus on?

Yokohama National University's top technology area is A63B (APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT) with 2 patents. The company has filed patents in 12 CPC subclasses total.

Is Yokohama National University's patent filing rate increasing or decreasing?

Yokohama National University's recent filing velocity is -83% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Yokohama National University's patents?

Yokohama National University's patents average 9.6 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Yokohama National 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.

How to use this portfolio

Yokohama's 7 grants land it in the top 83% 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 - Yokohama ranks #38,382 of 50,000. Top 50 holders
Most of this portfolio concentrates in A63B - see who else leads that technology area. A63B 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

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.