Where does Hitachi Zosen Fukui Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Zosen Fukui Corporation ranks #35,710 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 Hitachi Zosen Fukui Corporation hold?

Hitachi Zosen Fukui Corporation holds 7 US utility patents granted between 2017 and 2019, spanning 6 technology areas.

What is Hitachi Zosen Fukui Corporation's Innovation Score?

Hitachi Zosen Fukui Corporation has an Innovation Score of 20.0 out of 100 (6th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hitachi Zosen Fukui Corporation's patent grant rate increasing or decreasing?

Hitachi Zosen Fukui Corporation'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 Hitachi Zosen Fukui Corporation's patents?

Hitachi Zosen Fukui Corporation's patents average 7.0 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 Hitachi Zosen Fukui Corporation 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

Hitachi Zosen Fukui Corporation

Q: What technology areas does Hitachi Zosen Fukui Corporation focus on?

Hitachi Zosen Fukui Corporation's top technology area is B21D (Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal) with 4 patents, ranking #186 of 818 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 6 technology areas, recorded in grant years 2017–2019. 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: B21D (Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #35,710 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 6 technology areas.

#35,710
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (20.0/100): 7.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35710 · Foreign Corporation #35,710 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #35,710/49,997
PHOTO-FINISH Hiconics Eco-energy…
CPC-NARROW B21D · 6 areas
INNOV-THIN 20.0/100
CLAIMS-SPARSE 7.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hiconics Eco-energy Technology 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 Hitachi’s 20.0 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 7.2 pts (36%) Velocity 0.0 pts (0%) Breadth 8.7 pts (43%) Claim depth 4.2 pts (21%)

Qualcomm Incorporated · highest

85
Hitachi Zosen Fukui · this assignee

20
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 20.0/100 (6th 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 Hitachi?

Each dot is one of Hitachi’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). Hitachi’s own 7.0 claims/patent is at or below the 13.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hitachi's grants concentrate

Hitachi Zosen Fukui Corporation is a focused PatentsView assignee: 6 CPC subclasses with 57.1% of grants classified under B21D (Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal). Peak complete grant year is 2018 (3 grants) versus a trough of 2 in 2017. By volume, Hitachi sits between Hiconics Eco-energy Technology Co., Ltd. and HKR Seuffer Automotive GMBH & Co. KG.

Hiconics Eco-ener…

7
High Voltage Grap…

7
Highyag Lasertech…

7
Hitachi Tool Engi…

7
Hitgen

7
Hithink Financial…

7
HKI Systems and S…

7
HKR Seuffer Autom…

7
Hitachi Zosen Fuk… ◀

7

What this shows Hitachi holds 7 patents at rank #35,646, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi

By rank, the assignees closest to #35,646 in granted patent volume.

Leaders in B21D (Working OR Processing OF Sheet Metal OR Metal Tubes)

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

Hitachi's Innovation Score vs. every tracked assignee

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

20 6th percentile higher than 6% 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 · 2017–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Hitachi Zosen Fukui Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	28.6%
2018	3	42.9%
2019	2	28.6%

Which technologies does Hitachi Zosen Fukui Corporation patent most?

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 4

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 3

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 3

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 2

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 2

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 1

Top 6 of 6 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

Hitachi Zosen Fukui Corporation's patent record in context - here's where to go next.

Hitachi Zosen Fukui Corporation's lead technology class is B21D (Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal), 57.1% of its portfolio - see every assignee active in that class. Explore B21D
Ranked #35,710 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Zosen Fukui Corporation against Hiconics Eco-energy Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 20.0/100 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.