Where does Sankyo Seisakusho Co. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sankyo Seisakusho Co. ranks #14,910 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 Sankyo Seisakusho Co. hold?

Sankyo Seisakusho Co. holds 20 US utility patents granted between 2015 and 2025, spanning 17 technology areas.

What is Sankyo Seisakusho Co.'s Innovation Score?

Sankyo Seisakusho Co. has an Innovation Score of 50.7 out of 100 (top 13% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sankyo Seisakusho Co. focus on?

Sankyo Seisakusho Co.'s top technology area is F16H (Gearing) with 11 patents, ranking #223 of 1,603 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Sankyo Seisakusho Co.'s patent grant rate increasing or decreasing?

Sankyo Seisakusho Co.'s recent grant velocity is +180% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sankyo Seisakusho Co.'s patents?

Sankyo Seisakusho Co.'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 Sankyo Seisakusho Co. 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

Sankyo Seisakusho Co.

USPTO PatentsView assignee record - 20 granted patents across 17 technology areas, recorded in grant years 2015–2025. 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: F16H (Gearing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sankyo ranks #14,910 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 17 technology areas.

#14,910
of 49,997 US assignees by volume: Top 13%
by Innovation Score (50.7/100): 9.3
avg claims per patent: +180%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14910 · Foreign Corporation #14,910 · 20 grants

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

GRANTS-SMALL 20 grants
MID-PACK #14,910/49,997
PHOTO-FINISH Samhwa Capacitor
CPC-FOCUS F16H · 17 areas
INNOV-PAR 50.7/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +180% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Samhwa Capacitor Co., Ltd. (±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 Sankyo’s 50.7 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 10.5 pts (21%) Velocity 20.0 pts (39%) Breadth 14.6 pts (29%) Claim depth 5.6 pts (11%)

Qualcomm Incorporated · highest

85
Sankyo Seisakusho · this assignee

51
3D Lighting… · lowest

7

What this shows Sankyo's Innovation Score is 50.7/100 (top 13% 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 Sankyo?

Each dot is one of Sankyo’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). Sankyo’s own 9.3 claims/patent is at or below the 10.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sankyo's grants concentrate

Sankyo Seisakusho Co. is a focused PatentsView assignee: 17 CPC subclasses with 55% of grants classified under F16H (Gearing). Peak complete grant year is 2022 (5 grants) versus a trough of 1 in 2016. By volume, Sankyo sits between S.C.R. (ENGINEERS) Limited and Sega Corporation.

Sankyo's three-year grant acceleration

Sankyo Seisakusho Co. shows 11 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.

S C R (Engineers)

20
S J Electro Syste…

20
Samhwa Capacitor

20
San-ei GEN F F I

20
Sanvean

20
Savoye

20
SDI

20
Sega

20
Sankyo Seisakusho ◀

20

What this shows Sankyo holds 20 patents at rank #14,908, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sankyo

By rank, the assignees closest to #14,908 in granted patent volume.

Leaders in F16H (Gearing)

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

Sankyo's Innovation Score vs. every tracked assignee

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

51 Top 13% higher than 87% 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 · 2015–2025

Grants by year

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

View data table

Sankyo Seisakusho Co. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.0%
2016	1	5.0%
2017	1	5.0%
2018	1	5.0%
2020	2	10.0%
2021	1	5.0%
2022	5	25.0%
2023	4	20.0%
2024	2	10.0%
2025partial year	1	5.0%

Which technologies does Sankyo Seisakusho Co. patent most?

F16H - Gearing 11

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 5

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 4

H02K - Dynamo-electric Machines 4

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 3

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 3

H01L - Semiconductor Devices NOT Covered BY Class H10 2

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 2

F16N - Lubricating 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

B21C - Manufacture OF Metal Sheets, Wire, Rods, Tubes, Profiles OR Like Semi-manufactured Products Otherwise Than BY ROLLING; Auxiliary Operations Used IN Connection With Metal-working Without Essentially Removing Material 1

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

B23Q - Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result 1

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 1

Top 15 of 17 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

Sankyo Seisakusho Co.'s patent record in context - here's where to go next.

Sankyo Seisakusho Co.'s lead technology class is F16H (Gearing), 55% of its portfolio - see every assignee active in that class. Explore F16H
Ranked #14,910 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sankyo Seisakusho Co. against S.C.R. (ENGINEERS) Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.7/100 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.