Where does Nittoku Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nittoku Engineering Co., Ltd. ranks #12,596 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 Nittoku Engineering Co., Ltd. hold?

Nittoku Engineering Co., Ltd. holds 24 US utility patents granted between 2015 and 2019, spanning 9 technology areas.

What is Nittoku Engineering Co., Ltd.'s Innovation Score?

Nittoku Engineering Co., Ltd. has an Innovation Score of 25.4 out of 100 (17th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nittoku Engineering Co., Ltd. focus on?

Nittoku Engineering Co., Ltd.'s top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties) with 14 patents, ranking #125 of 1,360 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Nittoku Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

Nittoku Engineering Co., Ltd.'s recent grant velocity is -100% 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 Nittoku Engineering Co., Ltd.'s patents?

Nittoku Engineering Co., Ltd.'s patents average 6.0 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 Nittoku Engineering 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

Nittoku Engineering Co., Ltd.

USPTO PatentsView assignee record - 24 granted patents across 9 technology areas, recorded in grant years 2015–2019. 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: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Nittoku ranks #12,596 of 49,997 tracked US assignees by granted-patent volume, with 24 patents across 9 technology areas.

#12,596
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.4/100): 6.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12596 · Foreign Corporation #12,596 · 24 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 24 grants
MID-PACK #12,596/49,997
PHOTO-FINISH Nanchang Coolpad…
CPC-NARROW H01F · 9 areas
INNOV-THIN 25.4/100
CLAIMS-SPARSE 6.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nanchang Coolpad Intelligent Technology Company Limited (±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 Nittoku’s 25.4 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 11.1 pts (44%) Velocity 0.0 pts (0%) Breadth 10.6 pts (42%) Claim depth 3.6 pts (14%)

Qualcomm Incorporated · highest

85
Nittoku Engineering · this assignee

25
3D Lighting… · lowest

7

What this shows Nittoku's Innovation Score is 25.4/100 (17th percentile 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 Nittoku?

Each dot is one of Nittoku’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). Nittoku’s own 6.0 claims/patent is at or below the 9.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Nittoku's grants concentrate

Nittoku Engineering Co., Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 58.3% of grants classified under H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties). Peak complete grant year is 2017 (7 grants) versus a trough of 2 in 2016. By volume, Nittoku sits between Nextvpu (SHANGHAI) Co., Ltd. and Nanchang Coolpad Intelligent Technology Company Limited.

Nextvpu (Shanghai)

24
NGD Systems

24
Nickolas Brands

24
Nisshin Seifun Gr…

24
Nostalgia Products

24
NOV Downhole Eura…

24
NS Materials

24
Nanchang Coolpad…

24
Nittoku Engineeri… ◀

24

What this shows Nittoku holds 24 patents at rank #12,585, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nittoku

By rank, the assignees closest to #12,585 in granted patent volume.

Leaders in H01F (Magnets)

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

Nittoku's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% 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 · 2015–2019

Grants by year

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

View data table

Nittoku Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	12.5%
2016	2	8.3%
2017	7	29.2%
2018	6	25.0%
2019	6	25.0%

Which technologies does Nittoku Engineering Co., Ltd. patent most?

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 14

H02K - Dynamo-electric Machines 10

Y10T - Technical Subjects Covered BY Former US Classification 6

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 4

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 4

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 3

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

B21F - Working OR Processing OF Metal Wire 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

Top 9 of 9 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

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

Nittoku Engineering Co., Ltd.'s lead technology class is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties), 58.3% of its portfolio - see every assignee active in that class. Explore H01F
Ranked #12,596 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nittoku Engineering Co., Ltd. against Nextvpu (SHANGHAI) Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.4/100 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.