Where does Hitachi High-tech Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi High-tech Corporation ranks #422 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 High-tech Corporation hold?

Hitachi High-tech Corporation holds 1,071 US utility patents granted between 2020 and 2025, spanning 125 technology areas.

What is Hitachi High-tech Corporation's Innovation Score?

Hitachi High-tech Corporation has an Innovation Score of 67.0 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 High-tech Corporation focus on?

Hitachi High-tech Corporation's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 515 patents, ranking #11 of 7,863 assignees active in that subclass. Grants appear in 125 CPC subclasses total.

Is Hitachi High-tech Corporation's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Hitachi High-tech Corporation.

What does claim depth mean for Hitachi High-tech Corporation's patents?

Hitachi High-tech Corporation's patents average 10.3 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 High-tech 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 High-tech Corporation

USPTO PatentsView assignee record - 1,071 granted patents across 125 technology areas, recorded in grant years 2020–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hitachi ranks #422 of 49,997 tracked US assignees by granted-patent volume, with 1,071 patents across 125 technology areas.

#422
of 49,997 US assignees by volume: Top 1%
by Innovation Score (67.0/100): 10.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R422 · Foreign Corporation #422 · 1,071 grants

GRANTS-LARGE · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-LARGE 1.1K grants
TOP-DECILE #422/49,997
PHOTO-FINISH Novatek Microelectro…
CPC-WIDE G01N · 125 areas
INNOV-STRONG 67.0/100
CLAIMS-PAR 10.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Novatek Microelectronics Corp. (±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 67.0 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 24.1 pts (36%) Velocity 11.7 pts (17%) Breadth 25.0 pts (37%) Claim depth 6.2 pts (9%)

Qualcomm Incorporated · highest

85
Nutrition &… · near

67
Ecole Superieure DE… · near

67
Hitachi High-tech · this assignee

67
Coopervision… · near

67
Sew-eurodrive & KG · near

67
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 67.0/100 (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 10.3 claims/patent is at or below the 16.2 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

Grant history spans 2020–2025. Across complete PatentsView years, output peaked in 2024 at 209 grants and bottomed in 2020 at 131. Lead class G01N accounts for 48.1% of the portfolio across 125 subclasses. Volume neighbours: Regents of the University of Minnesota (#418) and Lawrence Livermore National Security, LLC (#426).

Hitachi's three-year grant acceleration

From 2019–2021 to 2022–2024, Hitachi High-tech Corporation moved from 312 to 549 grants (1.76x 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 #289. See the growth leaderboard.

Regents of the Un…

1,081
Rohde & Schwarz &…

1,078
Fisher & Paykel H…

1,077
Screen Holdings

1,077
Novatek Microelec…

1,071
Hitachi High-tech ◀

1,071
Hitachi High-

1,068
Hoffmann-la Roche

1,065
Lawrence Livermor…

1,064

What this shows Hitachi holds 1,071 patents at rank #422, 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 #422 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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 G01N (Investigating OR Analysing Materials BY Determining Their…), Hitachi ranks #11 of 7,863 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (67 here).

Ecole Superieure DE Physique ET DE Chimie Industrielles DE LA Ville DE Paris 67 Nutrition & Biosciences USA 4, Inc. 67 Sew-eurodrive GMBH & Co. KG 67 Coopervision International Limited 67

Similar claim depth

Nearest assignees by average claims per patent (10.3 here).

Medline Industries, LP 10.3 avg Qingdao Haier Refrigerator Co., Ltd. 10.3 avg Whirlpool S.A. 10.3 avg Valeo Japan Co., Ltd. 10.3 avg

Hitachi's Innovation Score vs. every tracked assignee

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

67 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 · 2020–2025

Grants by year

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

View data table

Hitachi High-tech Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	131	12.2%
2021	181	16.9%
2022	198	18.5%
2023	142	13.3%
2024	209	19.5%
2025partial year	210	19.6%

Which technologies does Hitachi High-tech Corporation patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 515

H01J - Electric Discharge Tubes OR Discharge Lamps 465

H01L - Semiconductor Devices NOT Covered BY Class H10 180

G06T - Image Data Processing OR Generation, IN General 99

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 84

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 48

G06F - Electric Digital Data Processing 39

G06V - Image OR Video Recognition OR Understanding 33

G02B - Optical Elements, Systems OR Apparatus 32

G06N - Computing Arrangements Based ON Specific Computational Models 32

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 30

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 26

H05H - Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams 26

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 26

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 24

Top 15 of 125 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 High-tech Corporation's patent record in context - here's where to go next.

Hitachi High-tech Corporation's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 48.1% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #422 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi High-tech Corporation against Regents of the University of Minnesota, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 67.0/100 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.