Where does Nippon Seiki Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nippon Seiki Co., Ltd. ranks #2,613 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 Nippon Seiki Co., Ltd. hold?

Nippon Seiki Co., Ltd. holds 149 US utility patents granted between 2015 and 2025, spanning 53 technology areas.

What is Nippon Seiki Co., Ltd.'s Innovation Score?

Nippon Seiki Co., Ltd. has an Innovation Score of 49.5 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Nippon Seiki Co., Ltd.'s patent grant rate increasing or decreasing?

Nippon Seiki Co., Ltd.'s recent grant velocity is -34% 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 Nippon Seiki Co., Ltd.'s patents?

Nippon Seiki Co., Ltd.'s patents average 6.9 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 Nippon Seiki 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

Nippon Seiki Co., Ltd.

Q: What technology areas does Nippon Seiki Co., Ltd. focus on?

Nippon Seiki Co., Ltd.'s top technology area is B60K (Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply ) with 95 patents, ranking #48 of 1,448 assignees active in that subclass. Grants appear in 53 CPC subclasses total.

USPTO PatentsView assignee record - 149 granted patents across 53 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: B60K (Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashb).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Nippon ranks #2,613 of 49,997 tracked US assignees by granted-patent volume, with 149 patents across 53 technology areas.

#2,613
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.5/100): 6.9
avg claims per patent: -34%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2613 · Foreign Corporation #2,613 · 149 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 149 grants
TOP-DECILE #2,613/49,997
PHOTO-FINISH KOH Young Technology
CPC-WIDE B60K · 53 areas
INNOV-PAR 49.5/100
CLAIMS-SPARSE 6.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -34% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: KOH Young Technology 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 Nippon’s 49.5 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 17.3 pts (35%) Velocity 3.1 pts (6%) Breadth 25.0 pts (50%) Claim depth 4.2 pts (8%)

Qualcomm Incorporated · highest

85
Bridgestone Sports · near

50
Hitachi-ge Nuclear… · near

50
Nippon Seiki · this assignee

50
Seven Networks · near

50
SRC · near

50
3D Lighting… · lowest

7

What this shows Nippon's Innovation Score is 49.5/100 (top 14% 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 Nippon?

Each dot is one of Nippon’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). Nippon’s own 6.9 claims/patent is at or below the 16.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Nippon's grant cadence moved

Between 2020–2024, Nippon Seiki Co., Ltd. received 57 grants versus 86 in 2015–2019 (-34% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2018 at 19 grants and bottomed in 2023 at 4. Lead class B60K accounts for 63.8% of the portfolio across 53 subclasses. Volume neighbours: KOH Young Technology Inc (#2,609) and The Hong Kong Polytechnic University (#2,617).

Nippon's three-year grant acceleration

From 2019–2021 to 2022–2024, Nippon Seiki Co., Ltd. moved from 52 to 24 grants (0.46x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #2,777. See the growth leaderboard.

KOH Young Technol…

149
LTS Lohmann Thera…

149
Movandi

149
Moxtek

149
Politecnico di Mi…

149
Silanna Asia Pte

149
Teradyne

149
The Hong Kong Pol…

149
Nippon Seiki ◀

149

What this shows Nippon holds 149 patents at rank #2,613, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #2,613 in granted patent volume.

Leaders in B60K (Arrangement OR Mounting OF Propulsion Units OR OF Transmi…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nippon, neither rank-band nor same-CPC leaders (those blocks stay above). In B60K (Arrangement OR Mounting OF Propulsion Units OR OF Transmi…), Nippon ranks #48 of 1,448 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (50 here).

Seven Networks, LLC 50 Bridgestone Sports Co., Ltd. 50 Hitachi-ge Nuclear Energy, Ltd. 50 SRC Corporation 50

Similar claim depth

Nearest assignees by average claims per patent (6.9 here).

Salomon S.A.S. 6.9 avg Japan Aviation Electronics Industry, Limited 6.9 avg PAX Computer Technology (SHENZHEN) Co., Ltd. 6.9 avg Dai-ichi Seiko Co., Ltd. 6.9 avg

Nippon's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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

Nippon Seiki Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	12	8.1%
2016	18	12.1%
2017	18	12.1%
2018	19	12.8%
2019	19	12.8%
2020	19	12.8%
2021	14	9.4%
2022	15	10.1%
2023	4	2.7%
2024	5	3.4%
2025partial year	6	4.0%

Which technologies does Nippon Seiki Co., Ltd. patent most?

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 95

G02B - Optical Elements, Systems OR Apparatus 88

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 35

H04N - Pictorial Communication, e.g. Television 24

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 23

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 21

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 19

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 12

G06F - Electric Digital Data Processing 11

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 8

G06V - Image OR Video Recognition OR Understanding 8

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 7

G06T - Image Data Processing OR Generation, IN General 7

G08G - Traffic Control Systems 7

B60W - Conjoint Control OF Vehicle Sub-units OF Different Type OR Different FUNCTION; Control Systems Specially Adapted FOR Hybrid VEHICLES; Road Vehicle Drive Control Systems FOR Purposes NOT Related TO THE Control OF A Particular Sub-unit 7

Top 15 of 53 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

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

Nippon Seiki Co., Ltd.'s lead technology class is B60K (Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashb), 63.8% of its portfolio - see every assignee active in that class. Explore B60K
Ranked #2,613 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nippon Seiki Co., Ltd. against KOH Young Technology Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.5/100 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.