Where does Tatsumi Ryoki Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tatsumi Ryoki Co., Ltd ranks #11,826 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 Tatsumi Ryoki Co., Ltd hold?

Tatsumi Ryoki Co., Ltd holds 26 US utility patents granted between 2016 and 2025, spanning 35 technology areas.

What is Tatsumi Ryoki Co., Ltd's Innovation Score?

Tatsumi Ryoki Co., Ltd has an Innovation Score of 52.4 out of 100 (top 10% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tatsumi Ryoki Co., Ltd focus on?

Tatsumi Ryoki Co., Ltd's top technology area is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables) with 18 patents, ranking #314 of 3,424 assignees active in that subclass. Grants appear in 35 CPC subclasses total.

Is Tatsumi Ryoki Co., Ltd's patent grant rate increasing or decreasing?

Tatsumi Ryoki Co., Ltd's recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Tatsumi Ryoki Co., Ltd's patents?

Tatsumi Ryoki Co., Ltd's patents average 9.4 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 Tatsumi Ryoki 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

Tatsumi Ryoki Co., Ltd

USPTO PatentsView assignee record - 26 granted patents across 35 technology areas, recorded in grant years 2016–2025. 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: G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tatsumi ranks #11,826 of 49,997 tracked US assignees by granted-patent volume, with 26 patents across 35 technology areas.

#11,826
of 49,997 US assignees by volume: Top 10%
by Innovation Score (52.4/100): 9.4
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11826 · Foreign Corporation #11,826 · 26 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 26 grants
UPPER-Q #11,826/49,997
PHOTO-FINISH SpineCore
CPC-FOCUS G01R · 35 areas
INNOV-PAR 52.4/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: SpineCore, 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 Tatsumi’s 52.4 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 11.4 pts (22%) Velocity 14.4 pts (27%) Breadth 20.9 pts (40%) Claim depth 5.7 pts (11%)

Qualcomm Incorporated · highest

85
Element Six · near

52
Imertech SAS · near

52
Oticon Medical A/S · near

52
Sunnybrook Research… · near

52
Tatsumi Ryoki · this assignee

52
3D Lighting… · lowest

7

What this shows Tatsumi's Innovation Score is 52.4/100 (top 10% 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 Tatsumi?

Each dot is one of Tatsumi’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). Tatsumi’s own 9.4 claims/patent is at or below the 16.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tatsumi's grants concentrate

Tatsumi Ryoki Co., Ltd is a focused PatentsView assignee: 35 CPC subclasses with 69.2% of grants classified under G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables). Peak complete grant year is 2023 (6 grants) versus a trough of 1 in 2019. By volume, Tatsumi sits between SpineCore, Inc. and THE Arizona Board OF Regents.

Tatsumi's three-year grant acceleration

Tatsumi Ryoki Co., Ltd shows 13 grants in 2022–2024 against only 6 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.

Spinecore

26
Sprick Bielefelde…

26
Synthes

26
Tamkang University

26
Teletech Holdings

26
Termax

26
THE Antenna Inter…

26
THE Arizona Board…

26
Tatsumi Ryoki ◀

26

What this shows Tatsumi holds 26 patents at rank #11,824, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tatsumi

By rank, the assignees closest to #11,824 in granted patent volume.

Leaders in G01R (Measuring Electric Variables)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tatsumi, neither rank-band nor same-CPC leaders (those blocks stay above). In G01R (Measuring Electric Variables), Tatsumi ranks #314 of 3,424 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (52 here).

Imertech SAS 52 Sunnybrook Research Institute 52 Element Six Limited 52 Oticon Medical A/S 52

Tatsumi's Innovation Score vs. every tracked assignee

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

52 Top 10% higher than 90% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Tatsumi Ryoki Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	11.5%
2018	2	7.7%
2019	1	3.8%
2020	4	15.4%
2021	1	3.8%
2022	1	3.8%
2023	6	23.1%
2024	6	23.1%
2025partial year	2	7.7%

Which technologies does Tatsumi Ryoki Co., Ltd patent most?

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 18

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 8

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 7

H01C - Resistors 5

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 3

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 3

B60F - Vehicles FOR USE Both ON Rail AND ON ROAD; Amphibious OR Like VEHICLES; Convertible Vehicles 2

B64C - AEROPLANES; Helicopters 2

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 2

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 1

H02K - Dynamo-electric Machines 1

Top 15 of 35 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

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

Tatsumi Ryoki Co., Ltd's lead technology class is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables), 69.2% of its portfolio - see every assignee active in that class. Explore G01R
Ranked #11,826 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tatsumi Ryoki Co., Ltd against SpineCore, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.4/100 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.