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

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi, Ltd. ranks #63 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, Ltd. hold?

Hitachi, Ltd. holds 5,890 US utility patents granted between 2015 and 2025, spanning 346 technology areas.

What is Hitachi, Ltd.'s Innovation Score?

Hitachi, Ltd. has an Innovation Score of 65.7 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hitachi, Ltd. focus on?

Hitachi, Ltd.'s top technology area is G06F (Electric Digital Data Processing) with 2,097 patents, ranking #34 of 13,878 assignees active in that subclass. Grants appear in 346 CPC subclasses total.

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

Hitachi, Ltd.'s recent grant velocity is -30% 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, Ltd.'s patents?

Hitachi, Ltd.'s patents average 11.0 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, 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, Ltd.

USPTO PatentsView assignee record - 5,890 granted patents across 346 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: G06F (Electric Digital Data Processing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #63 of 49,997 tracked US assignees by granted-patent volume, with 5,890 patents across 346 technology areas.

#63
of 49,997 US assignees by volume: Top 1%
by Innovation Score (65.7/100): 11.0
avg claims per patent: -30%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R63 · Foreign Corporation #63 · 5,890 grants

GRANTS-LARGE · TOP-DECILE · NEAR-PEER · CPC-BROAD · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-LARGE 5.9K grants
TOP-DECILE #63/49,997
NEAR-PEER Infineon
CPC-BROAD G06F · 346 areas
INNOV-STRONG 65.7/100
CLAIMS-PAR 11.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -30% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Infineon Technologies AG (±46 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 65.7 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 30.0 pts (46%) Velocity 4.1 pts (6%) Breadth 25.0 pts (38%) Claim depth 6.6 pts (10%)

Qualcomm Incorporated · highest

85
Hitachi · this assignee

66
Truist Bank · near

66
Ecolab USA · near

66
Henkel & KGaA · near

66
Kyocera · near

66
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 65.7/100 (top 1% 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 11.0 claims/patent is at or below the 16.9 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.

How Hitachi's grant cadence moved

Between 2020–2024, Hitachi, Ltd. received 2,351 grants versus 3,374 in 2015–2019 (-30% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2015 at 796 grants and bottomed in 2024 at 293. Lead class G06F accounts for 35.6% of the portfolio across 346 subclasses. Volume neighbours: Saudi Arabian OIL Company (#59) and Kyocera Document Solutions Inc. (#67).

Hitachi's three-year grant acceleration

From 2019–2021 to 2022–2024, Hitachi, Ltd. moved from 1,854 to 1,154 grants (0.62x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #2,385. See the growth leaderboard.

Saudi Arabian OIL

6,393
3M Innovative Pro…

5,993
Capital ONE Servi…

5,990
Infineon

5,936
Hitachi ◀

5,890
SAP SE

5,717
The Procter & Gam…

5,586
Nokia OY

5,496
Kyocera Document…

5,491

What this shows Hitachi holds 5,890 patents at rank #63, 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 #63 in granted patent volume.

Leaders in G06F (Electric Digital Data Processing)

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 G06F (Electric Digital Data Processing), Hitachi ranks #34 of 13,878 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (66 here).

Truist Bank 66 Kyocera Corporation 66 Ecolab USA Inc. 66 Henkel AG & Co. KGaA 66

Similar claim depth

Nearest assignees by average claims per patent (11.0 here).

Foundation OF Soongsil University-industry Cooperation 11.0 avg Regalo International, LLC 11.0 avg Safran Ceramics 11.0 avg Mplus Corp. 11.0 avg

Hitachi's Innovation Score vs. every tracked assignee

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

66 Top 1% higher than 99% 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, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	796	13.5%
2016	705	12.0%
2017	668	11.3%
2018	548	9.3%
2019	657	11.2%
2020	625	10.6%
2021	572	9.7%
2022	516	8.8%
2023	345	5.9%
2024	293	5.0%
2025partial year	165	2.8%

Which technologies does Hitachi, Ltd. patent most?

G06F - Electric Digital Data Processing 2,097

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 668

A61B - DIAGNOSIS; SURGERY; Identification 355

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 319

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 315

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 291

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 277

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 276

G06T - Image Data Processing OR Generation, IN General 264

C22C - Alloys 254

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 245

G06N - Computing Arrangements Based ON Specific Computational Models 240

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 234

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 176

G06V - Image OR Video Recognition OR Understanding 165

Top 15 of 346 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, Ltd.'s patent record in context - here's where to go next.

Hitachi, Ltd.'s lead technology class is G06F (Electric Digital Data Processing), 35.6% of its portfolio - see every assignee active in that class. Explore G06F
Ranked #63 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi, Ltd. against Saudi Arabian OIL Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 65.7/100 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.