Where does Hitachi Kokusai Electric Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Kokusai Electric Inc. ranks #736 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 Kokusai Electric Inc. hold?

Hitachi Kokusai Electric Inc. holds 618 US utility patents granted between 2015 and 2024, spanning 82 technology areas.

What is Hitachi Kokusai Electric Inc.'s Innovation Score?

Hitachi Kokusai Electric Inc. has an Innovation Score of 56.2 out of 100 (top 6% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hitachi Kokusai Electric Inc.'s patent grant rate increasing or decreasing?

Hitachi Kokusai Electric Inc.'s recent grant velocity is -87% 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 Kokusai Electric Inc.'s patents?

Hitachi Kokusai Electric Inc.'s patents average 10.2 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 Kokusai Electric Inc. 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 Kokusai Electric Inc.

Q: What technology areas does Hitachi Kokusai Electric Inc. focus on?

Hitachi Kokusai Electric Inc.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 346 patents. Grants appear in 82 CPC subclasses total.

USPTO PatentsView assignee record - 618 granted patents across 82 technology areas, recorded in grant years 2015–2024. 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #736 of 49,997 tracked US assignees by granted-patent volume, with 618 patents across 82 technology areas.

#736
of 49,997 US assignees by volume: Top 6%
by Innovation Score (56.2/100): 10.2
avg claims per patent: -87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R736 · Foreign Corporation #736 · 618 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 618 grants
TOP-DECILE #736/49,997
PHOTO-FINISH Semes
CPC-WIDE H01L · 82 areas
INNOV-PAR 56.2/100
CLAIMS-PAR 10.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -87% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Semes 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.

Qualcomm Incorporated · highest

85
Beijing Jingdong… · near

56
Hitachi Kokusai… · this assignee

56
Rohm and Haas… · near

56
The Alfred E Mann… · near

56
The Hong Kong… · near

56
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 56.2/100 (top 6% 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.

How Hitachi's grant cadence moved

Between 2020–2024, Hitachi Kokusai Electric Inc. received 73 grants versus 545 in 2015–2019 (-87% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2016 at 145 grants and bottomed in 2023 at 9. Lead class H01L accounts for 56% of the portfolio across 82 subclasses. Volume neighbours: King Saud University (#732) and Bell Helicopter Textron Inc. (#740).

Hitachi's three-year grant acceleration

From 2019–2021 to 2022–2024, Hitachi Kokusai Electric Inc. moved from 78 to 33 grants (0.42x 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 #2,840. See the growth leaderboard.

King Saud Univers…

622
Osram

622
Baxter Internatio…

620
Siemens Energy Gl…

620
Semes

618
Hitachi Kokusai E… ◀

618
Institut National…

617
Invensense

617
Bell Helicopter T…

616

What this shows Hitachi holds 618 patents at rank #736, 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 #736 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

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).

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Rohm and Haas Electronic Materials LLC 56 Beijing Jingdong Shangke Information Technology Co., Ltd. 56 The Hong Kong Polytechnic University 56 The Alfred E. Mann Foundation for Scientific Research 56

Similar claim depth

Nearest assignees by average claims per patent (10.2 here).

Shinko Electric Industries Co., Ltd. 10.2 avg Mitsubishi Power, Ltd. 10.2 avg Mainstream Engineering Corporation 10.2 avg Ellenberger & Poensgen GmbH 10.2 avg

Hitachi's Innovation Score vs. every tracked assignee

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

56 Top 6% higher than 94% 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 · 2015–2024

Grants by year

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

View data table

Hitachi Kokusai Electric Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	114	18.4%
2016	145	23.5%
2017	144	23.3%
2018	104	16.8%
2019	38	6.1%
2020	23	3.7%
2021	17	2.8%
2022	11	1.8%
2023	9	1.5%
2024	13	2.1%

Which technologies does Hitachi Kokusai Electric Inc. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 346

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 296

H04N - Pictorial Communication, e.g. Television 69

H01J - Electric Discharge Tubes OR Discharge Lamps 67

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 51

H04W - Wireless Communication Networks 48

H04B - Transmission 42

G06T - Image Data Processing OR Generation, IN General 35

G06V - Image OR Video Recognition OR Understanding 34

H10D - Inorganic Electric Semiconductor Devices 30

G06F - Electric Digital Data Processing 26

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 13

H10B - Electronic Memory Devices 13

H03F - Amplifiers 12

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 11

Top 15 of 82 technology areas

Where it ranks

Overall rank by patents

#736

of 49,997 tracked assignees

Innovation Score

56.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Hitachi Kokusai Electric Inc.'s patent record in context - here's where to go next.

Hitachi Kokusai Electric Inc.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 56% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #736 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Kokusai Electric Inc. against King Saud University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 56.2/100 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.