Where does Nihon Plast Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nihon Plast Co., Ltd. ranks #4,425 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 Nihon Plast Co., Ltd. hold?

Nihon Plast Co., Ltd. holds 80 US utility patents granted between 2015 and 2025, spanning 31 technology areas.

What is Nihon Plast Co., Ltd.'s Innovation Score?

Nihon Plast Co., Ltd. has an Innovation Score of 43.4 out of 100 (top 28% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nihon Plast Co., Ltd. focus on?

Nihon Plast Co., Ltd.'s top technology area is B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR) with 44 patents, ranking #101 of 1,969 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

Is Nihon Plast Co., Ltd.'s patent grant rate increasing or decreasing?

Nihon Plast Co., Ltd.'s recent grant velocity is -45% 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 Nihon Plast Co., Ltd.'s patents?

Nihon Plast Co., Ltd.'s patents average 5.0 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 Nihon Plast 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

Nihon Plast Co., Ltd.

USPTO PatentsView assignee record - 80 granted patents across 31 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: B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nihon ranks #4,425 of 49,997 tracked US assignees by granted-patent volume, with 80 patents across 31 technology areas.

#4,425
of 49,997 US assignees by volume: Top 28%
by Innovation Score (43.4/100): 5.0
avg claims per patent: -45%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4425 · Foreign Corporation #4,425 · 80 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 80 grants
TOP-DECILE #4,425/49,997
PHOTO-FINISH IGT Canada Solutions…
CPC-FOCUS B60R · 31 areas
INNOV-PAR 43.4/100
CLAIMS-SPARSE 5.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -45% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: IGT Canada Solutions ULC (±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 Nihon’s 43.4 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 15.2 pts (35%) Velocity 5.6 pts (13%) Breadth 19.7 pts (45%) Claim depth 3.0 pts (7%)

Qualcomm Incorporated · highest

85
Cellectis · near

43
Chdi Foundation · near

43
Delta Kogyo · near

43
Nihon Plast · this assignee

43
Tango Networks · near

43
3D Lighting… · lowest

7

What this shows Nihon's Innovation Score is 43.4/100 (top 28% 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 Nihon?

Each dot is one of Nihon’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). Nihon’s own 5.0 claims/patent is at or below the 14.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Nihon's grants concentrate

Nihon Plast Co., Ltd. is a focused PatentsView assignee: 31 CPC subclasses with 55% of grants classified under B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR). Peak complete grant year is 2016 (16 grants) versus a trough of 4 in 2020. By volume, Nihon sits between IGT Canada Solutions ULC and Olympus Imaging Corp..

Nihon's three-year grant acceleration

Nihon Plast Co., Ltd. shows 15 grants in 2022–2024 against only 18 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.

IGT Canada Soluti…

80
Livanova USA

80
Medicaroid

80
Mitac Computing T…

80
Nippon Hoso Kyokai

80
Norma Germany

80
Nien Made Enterpr…

80
Olympus Imaging

80
Nihon Plast ◀

80

What this shows Nihon holds 80 patents at rank #4,424, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nihon

By rank, the assignees closest to #4,424 in granted patent volume.

Leaders in B60R (Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nihon, neither rank-band nor same-CPC leaders (those blocks stay above). In B60R (Vehicles), Nihon ranks #101 of 1,969 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (43 here).

Cellectis 43 Tango Networks, Inc. 43 Chdi Foundation, Inc. 43 Delta Kogyo Co., Ltd. 43

Similar claim depth

Nearest assignees by average claims per patent (5.0 here).

Whitmor, Inc. 5.0 avg Dongguan Jiasheng Lighting Technology Co., Ltd. 5.0 avg Luxottica S.R.L. 5.1 avg Artemide S.P.A. 5.1 avg

Nihon's Innovation Score vs. every tracked assignee

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

43 Top 28% higher than 72% 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

Nihon Plast Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	14	17.5%
2016	16	20.0%
2017	7	8.8%
2018	6	7.5%
2019	6	7.5%
2020	4	5.0%
2021	8	10.0%
2022	6	7.5%
2023	5	6.3%
2024	4	5.0%
2025partial year	4	5.0%

Which technologies does Nihon Plast Co., Ltd. patent most?

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 44

B62D - Motor VEHICLES; Trailers 31

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 14

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 6

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 6

B60Q - Arrangement OF Signalling OR Lighting Devices, THE Mounting OR Supporting Thereof OR Circuits Therefor, FOR Vehicles IN General 4

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 4

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 3

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

Y10T - Technical Subjects Covered BY Former US Classification 3

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 2

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 2

G05G - Control Devices OR Systems Insofar AS Characterised BY Mechanical Features Only 2

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 2

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

Top 15 of 31 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

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

Nihon Plast Co., Ltd.'s lead technology class is B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR), 55% of its portfolio - see every assignee active in that class. Explore B60R
Ranked #4,425 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nihon Plast Co., Ltd. against IGT Canada Solutions ULC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.4/100 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.