Where does Japan Radio Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Japan Radio Co., Ltd. ranks #19,950 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 Japan Radio Co., Ltd. hold?

Japan Radio Co., Ltd. holds 14 US utility patents granted between 2017 and 2025, spanning 12 technology areas.

What is Japan Radio Co., Ltd.'s Innovation Score?

Japan Radio Co., Ltd. has an Innovation Score of 36.1 out of 100 (top 47% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Japan Radio Co., Ltd. focus on?

Japan Radio Co., Ltd.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 6 patents, ranking #2,307 of 7,863 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Japan Radio Co., Ltd.'s patent grant rate increasing or decreasing?

Japan Radio Co., Ltd.'s recent grant velocity is -29% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Japan Radio Co., Ltd.'s patents?

Japan Radio Co., Ltd.'s patents average 9.3 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 Japan Radio Co., Ltd. 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

Japan Radio Co., Ltd.

USPTO PatentsView assignee record - 14 granted patents across 12 technology areas, recorded in grant years 2017–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Japan ranks #19,950 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 12 technology areas.

#19,950
of 49,997 US assignees by volume: Top 47%
by Innovation Score (36.1/100): 9.3
avg claims per patent: -29%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19950 · Foreign Corporation #19,950 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #19,950/49,997
PHOTO-FINISH Iyo
CPC-FOCUS G01N · 12 areas
INNOV-THIN 36.1/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -29% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Iyo 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 Japan’s 36.1 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 9.4 pts (26%) Velocity 8.9 pts (25%) Breadth 12.2 pts (34%) Claim depth 5.6 pts (16%)

Qualcomm Incorporated · highest

85
Japan Radio · this assignee

36
3D Lighting… · lowest

7

What this shows Japan's Innovation Score is 36.1/100 (top 47% 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 Japan?

Each dot is one of Japan’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). Japan’s own 9.3 claims/patent is at or below the 14.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Japan's grants concentrate

Japan Radio Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 42.9% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2021. By volume, Japan sits between Iyo Inc. and Jiangsu Shemar Electric Co., Ltd..

Japan's three-year grant acceleration

Japan Radio Co., Ltd. shows 4 grants in 2022–2024 against only 3 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.

Iyo

14
J VAN Zoest Behee…

14
J F R Enterprises

14
Jamf Software

14
Japan as represen…

14
Jenax

14
Jiangsu Dongcheng…

14
Jiangsu Shemar El…

14
Japan Radio ◀

14

What this shows Japan holds 14 patents at rank #19,946, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Japan

By rank, the assignees closest to #19,946 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Japan's Innovation Score vs. every tracked assignee

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

36 Top 47% higher than 53% 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 · 2017–2025

Grants by year

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

View data table

Japan Radio Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	14.3%
2018	3	21.4%
2019	2	14.3%
2021	1	7.1%
2022	3	21.4%
2024	1	7.1%
2025partial year	2	14.3%

Which technologies does Japan Radio Co., Ltd. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 6

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 3

H01P - WAVEGUIDES; Resonators, Lines, OR Other Devices OF THE Waveguide Type 3

H01Q - Antennas, i.e. Radio Aerials 3

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

H04W - Wireless Communication Networks 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

H03H - Impedance Networks, e.g. Resonant CIRCUITS; Resonators 1

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic, Sonic OR Infrasonic Waves 1

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 1

B63C - Launching, Hauling-out, OR Dry-docking OF VESSELS; Life-saving IN WATER; Equipment FOR Dwelling OR Working Under WATER; Means FOR Salvaging OR Searching FOR Underwater Objects 1

Top 12 of 12 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

Japan Radio Co., Ltd.'s patent record in context - here's where to go next.

Japan Radio Co., Ltd.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 42.9% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #19,950 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Japan Radio Co., Ltd. against Iyo Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.1/100 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.