USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nihon Plast Co., Ltd.

USPTO PatentsView assignee record - 80 granted patents across 31 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B60R (VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR).

Compiled by PlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

5.0

Avg claims per patent

-37%

5-year filing velocity

The verdict

Nihon holds 80 US patents across 31 technology areas, rank #4,424 of 50,000 tracked assignees.

#4,424
of 50,000 US assignees by volume: Top 28%
by Innovation Score (43.4/100): 5.0
avg claims per patent: -37%
filing velocity, last 5 yrs

Portfolio overview

Nihon Plast Co., Ltd. has been granted 80 US utility patents between 2015 and 2025, placing Nihon Plast Co., Ltd. at rank #4,424 across all assignees tracked by PlainPatent. This portfolio spans 31 distinct Cooperative Patent Classification (CPC) subclasses, averaging 5.0 claims per patent with primary concentration in B60R (VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR). As a Foreign Corporation, Nihon Plast Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Nihon sits between IGT Canada Solutions ULC (80 patents, rank #4,420) and Olympus Imaging Corp. (80 patents, rank #4,428) - the closest US assignees by grant volume. The composite Innovation Score of 43.4/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 31 grants, compared with 49 in the 2015–2019 window, a -37% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Nihon Plast Co., Ltd.'s 5.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 31 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nihon Plast Co., Ltd. against peers pursuing similar technology classes.

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.

Nihon's Innovation Score vs. every tracked assignee

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

43 Top 28% higher than 72% of 50,000 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%
2025	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

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#4,424

Across all tracked assignees

Innovation Score

43.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Nihon Plast Co., Ltd. hold?

Nihon Plast Co., Ltd. holds 80 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 31 CPC subclasses total.

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

Nihon Plast Co., Ltd.'s recent filing velocity is -37% compared to the prior five-year period. Filing 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 relatively simple claim structure, typical for focused inventions.

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.

How to use this portfolio

Nihon's 80 grants land it in the top 28% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Nihon ranks #4,424 of 50,000. Top 50 holders
Most of this portfolio concentrates in B60R - see who else leads that technology area. B60R leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 Editorial, US Patent Intelligence Editorial Team · 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.