Where does Hitachi Power Solutions Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Power Solutions Co., Ltd. ranks #9,049 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 Power Solutions Co., Ltd. hold?

Hitachi Power Solutions Co., Ltd. holds 35 US utility patents granted between 2015 and 2025, spanning 27 technology areas.

What is Hitachi Power Solutions Co., Ltd.'s Innovation Score?

Hitachi Power Solutions Co., Ltd. has an Innovation Score of 41.1 out of 100 (top 34% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hitachi Power Solutions Co., Ltd.'s patent grant rate increasing or decreasing?

Hitachi Power Solutions Co., Ltd.'s recent grant velocity is -32% 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 Power Solutions Co., Ltd.'s patents?

Hitachi Power Solutions Co., Ltd.'s patents average 10.9 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 Hitachi Power Solutions 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

Hitachi Power Solutions Co., Ltd.

Q: What technology areas does Hitachi Power Solutions Co., Ltd. focus on?

Hitachi Power Solutions Co., Ltd.'s top technology area is 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) with 7 patents, ranking #288 of 1,623 assignees active in that subclass. Grants appear in 27 CPC subclasses total.

USPTO PatentsView assignee record - 35 granted patents across 27 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: 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).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #9,049 of 49,997 tracked US assignees by granted-patent volume, with 35 patents across 27 technology areas.

#9,049
of 49,997 US assignees by volume: Top 34%
by Innovation Score (41.1/100): 10.9
avg claims per patent: -32%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9049 · Foreign Corporation #9,049 · 35 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 35 grants
UPPER-Q #9,049/49,997
PHOTO-FINISH Hanlong Industrial
CPC-FOCUS B23K · 27 areas
INNOV-PAR 41.1/100
CLAIMS-PAR 10.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -32% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hanlong Industrial 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 41.1 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 12.4 pts (30%) Velocity 3.9 pts (9%) Breadth 18.4 pts (45%) Claim depth 6.5 pts (16%)

Qualcomm Incorporated · highest

85
Control Techniques · near

41
Grst International · near

41
Hitachi Power… · this assignee

41
Musashi Seimitsu… · near

41
Natural Gas… · near

41
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 41.1/100 (top 34% 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 10.9 claims/patent is ABOVE the 10.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hitachi's grants concentrate

Hitachi Power Solutions Co., Ltd. is a focused PatentsView assignee: 27 CPC subclasses with 20% of grants classified under 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). Peak complete grant year is 2019 (6 grants) versus a trough of 1 in 2023. By volume, Hitachi sits between Horton, Inc. and Institute OF Semiconductors, Chinese Academy OF Sciences.

Hitachi's three-year grant acceleration

Hitachi Power Solutions Co., Ltd. shows 7 grants in 2022–2024 against only 12 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.

Horton

35
Hydrojug

35
Hanlong Industrial

35
Hansen Medical

35
ICM

35
Innovia Films

35
Inoac

35
Institute OF Semi…

35
Hitachi Power Sol… ◀

35

What this shows Hitachi holds 35 patents at rank #9,050, 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 #9,050 in granted patent volume.

Leaders in B23K (Soldering OR Unsoldering)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hitachi, neither rank-band nor same-CPC leaders (those blocks stay above). In B23K (Soldering OR Unsoldering), Hitachi ranks #288 of 1,623 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (41 here).

Grst International Limited 41 Natural Gas Solutions North America, LLC 41 Musashi Seimitsu Industry Co., Ltd. 41 Control Techniques Limited 41

Hitachi's Innovation Score vs. every tracked assignee

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

41 Top 34% higher than 66% 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

Hitachi Power Solutions Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	5.7%
2016	4	11.4%
2017	4	11.4%
2018	3	8.6%
2019	6	17.1%
2020	4	11.4%
2021	2	5.7%
2022	2	5.7%
2023	1	2.9%
2024	4	11.4%
2025partial year	3	8.6%

Which technologies does Hitachi Power Solutions Co., Ltd. patent most?

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 7

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 7

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 6

H01J - Electric Discharge Tubes OR Discharge Lamps 5

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 4

G06N - Computing Arrangements Based ON Specific Computational Models 4

H01L - Semiconductor Devices NOT Covered BY Class H10 3

G06F - Electric Digital Data Processing 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 3

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 3

G06T - Image Data Processing OR Generation, IN General 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 2

Top 15 of 27 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 Power Solutions Co., Ltd.'s patent record in context - here's where to go next.

Hitachi Power Solutions Co., Ltd.'s lead technology class is 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), 20% of its portfolio - see every assignee active in that class. Explore B23K
Ranked #9,049 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Power Solutions Co., Ltd. against Horton, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.1/100 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.