Where does Ricoh Electronic Devices Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ricoh Electronic Devices Co., Ltd. ranks #17,124 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 Ricoh Electronic Devices Co., Ltd. hold?

Ricoh Electronic Devices Co., Ltd. holds 17 US utility patents granted between 2015 and 2022, spanning 13 technology areas.

What is Ricoh Electronic Devices Co., Ltd.'s Innovation Score?

Ricoh Electronic Devices Co., Ltd. has an Innovation Score of 31.5 out of 100 (38th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Ricoh Electronic Devices Co., Ltd.'s patent grant rate increasing or decreasing?

Ricoh Electronic Devices Co., Ltd.'s recent grant velocity is -87% 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 Ricoh Electronic Devices Co., Ltd.'s patents?

Ricoh Electronic Devices Co., Ltd.'s patents average 9.0 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 Ricoh Electronic Devices 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

Ricoh Electronic Devices Co., Ltd.

Q: What technology areas does Ricoh Electronic Devices Co., Ltd. focus on?

Ricoh Electronic Devices Co., Ltd.'s top technology area is H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof) with 9 patents, ranking #330 of 1,541 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

USPTO PatentsView assignee record - 17 granted patents across 13 technology areas, recorded in grant years 2015–2022. 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: H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ricoh ranks #17,124 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 13 technology areas.

#17,124
of 49,997 US assignees by volume: 38th percentile
by Innovation Score (31.5/100): 9.0
avg claims per patent: -87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17124 · Foreign Corporation #17,124 · 17 grants

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

GRANTS-MICRO 17 grants
MID-PACK #17,124/49,997
PHOTO-FINISH R A Phillips…
CPC-FOCUS H02M · 13 areas
INNOV-THIN 31.5/100
CLAIMS-PAR 9.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -87% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: R.A. Phillips Industries, 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 Ricoh’s 31.5 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 10.0 pts (32%) Velocity 3.3 pts (11%) Breadth 12.7 pts (40%) Claim depth 5.4 pts (17%)

Qualcomm Incorporated · highest

85
Ricoh Devices · this assignee

31
3D Lighting… · lowest

7

What this shows Ricoh's Innovation Score is 31.5/100 (38th 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.

Does more volume mean deeper claims for Ricoh?

Each dot is one of Ricoh’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). Ricoh’s own 9.0 claims/patent is at or below the 15.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ricoh's grants concentrate

Ricoh Electronic Devices Co., Ltd. is a focused PatentsView assignee: 13 CPC subclasses with 52.9% of grants classified under H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;). Peak complete grant year is 2015 (9 grants) versus a trough of 1 in 2018. By volume, Ricoh sits between R.A. Phillips Industries, Inc. and Roberto Coin S.P.A..

Ricoh's three-year grant acceleration

Ricoh Electronic Devices Co., Ltd. shows 1 grants in 2022–2024 against only 2 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.

R A Phillips Indu…

17
Radius Pharmaceut…

17
Regenera Pharma

17
Renu Robotics

17
Right Group Centr…

17
RMO

17
Roam Robotics

17
Roberto Coin S P A

17
Ricoh Devices ◀

17

What this shows Ricoh holds 17 patents at rank #17,117, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ricoh

By rank, the assignees closest to #17,117 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Ricoh's Innovation Score vs. every tracked assignee

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

31 38th percentile higher than 38% 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 · 2015–2022

Grants by year

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

View data table

Ricoh Electronic Devices Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	9	52.9%
2016	2	11.8%
2017	2	11.8%
2018	1	5.9%
2019	1	5.9%
2020	1	5.9%
2022	1	5.9%

Which technologies does Ricoh Electronic Devices Co., Ltd. patent most?

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 9

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 5

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 4

G05F - Systems FOR Regulating Electric OR Magnetic Variables 3

H03K - Pulse Technique 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 2

H01S - Devices Using THE Process OF Light Amplification BY Stimulated Emission OF Radiation [LASER] TO Amplify OR Generate LIGHT; Devices Using Stimulated Emission OF Electromagnetic Radiation IN Wave Ranges Other Than Optical 1

H02H - Emergency Protective Circuit Arrangements 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

G06F - Electric Digital Data Processing 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

H10D - Inorganic Electric Semiconductor Devices 1

Top 13 of 13 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

Ricoh Electronic Devices Co., Ltd.'s patent record in context - here's where to go next.

Ricoh Electronic Devices Co., Ltd.'s lead technology class is H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;), 52.9% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #17,124 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ricoh Electronic Devices Co., Ltd. against R.A. Phillips Industries, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.5/100 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.