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

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Maxell, Ltd. ranks #1,723 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 Maxell, Ltd. hold?

Hitachi Maxell, Ltd. holds 237 US utility patents granted between 2015 and 2018, spanning 55 technology areas.

What is Hitachi Maxell, Ltd.'s Innovation Score?

Hitachi Maxell, Ltd. has an Innovation Score of 49.1 out of 100 (top 15% 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 Maxell, Ltd. focus on?

Hitachi Maxell, Ltd.'s top technology area is H04N (Pictorial Communication, e.g. Television) with 143 patents, ranking #156 of 5,951 assignees active in that subclass. Grants appear in 55 CPC subclasses total.

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

Hitachi Maxell, Ltd.'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 Maxell, Ltd.'s patents?

Hitachi Maxell, Ltd.'s patents average 8.7 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 Maxell, 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 Maxell, Ltd.

USPTO PatentsView assignee record - 237 granted patents across 55 technology areas, recorded in grant years 2015–2018. 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: H04N (Pictorial Communication, e.g. Television).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #1,723 of 49,997 tracked US assignees by granted-patent volume, with 237 patents across 55 technology areas.

#1,723
of 49,997 US assignees by volume: Top 15%
by Innovation Score (49.1/100): 8.7
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1723 · Foreign Corporation #1,723 · 237 grants

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

GRANTS-MID 237 grants
TOP-DECILE #1,723/49,997
PHOTO-FINISH AVL List
CPC-WIDE H04N · 55 areas
INNOV-PAR 49.1/100
CLAIMS-PAR 8.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: AVL List GMBH (±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 49.1 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 18.9 pts (38%) Velocity 0.0 pts (0%) Breadth 25.0 pts (51%) Claim depth 5.2 pts (11%)

Qualcomm Incorporated · highest

85
Hitachi Maxell · this assignee

49
Icon Technology · near

49
Shoals Group · near

49
SymphonyAI Sensa · near

49
Tatsuta Electric… · near

49
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 49.1/100 (top 15% 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 8.7 claims/patent is at or below the 14.2 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

Between 2020–2024, Hitachi Maxell, Ltd. received 0 grants versus 237 in 2015–2019 (-100% equal-window velocity, bottom decile growth). Across complete PatentsView years, output peaked in 2017 at 76 grants and bottomed in 2018 at 25. Lead class H04N accounts for 60.3% of the portfolio across 55 subclasses. Volume neighbours: Stripe, Inc. (#1,719) and University of Louisville Research Foundation, Inc. (#1,727).

Stripe

238
Triple WIN Techno…

238
AVL List

237
Faraday & Future

237
Sicpa Holding

237
Sartorius Stedim…

237
Tsubakimoto Chain

237
University of Lou…

237
Hitachi Maxell ◀

237

What this shows Hitachi holds 237 patents at rank #1,723, 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 #1,723 in granted patent volume.

Leaders in H04N (Pictorial Communication)

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 H04N (Pictorial Communication), Hitachi ranks #156 of 5,951 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (49 here).

Shoals Technologies Group, LLC 49 Icon Technology, Inc. 49 SymphonyAI Sensa LLC 49 Tatsuta Electric Wire & Cable Co., Ltd. 49

Similar claim depth

Nearest assignees by average claims per patent (8.7 here).

Sanyo Denki Co., Ltd. 8.7 avg Shaanxi University OF Science AND Technology 8.7 avg Panasonic Energy Co., Ltd. 8.7 avg Kaohsiung Medical University 8.7 avg

Hitachi's Innovation Score vs. every tracked assignee

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

49 Top 15% higher than 85% 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 · 2015–2018

Grants by year

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

View data table

Hitachi Maxell, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	73	30.8%
2016	63	26.6%
2017	76	32.1%
2018	25	10.5%

Which technologies does Hitachi Maxell, Ltd. patent most?

H04N - Pictorial Communication, e.g. Television 143

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 41

G06F - Electric Digital Data Processing 37

G02B - Optical Elements, Systems OR Apparatus 31

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 24

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 21

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 18

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 18

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 15

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 9

G06T - Image Data Processing OR Generation, IN General 9

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 8

G06V - Image OR Video Recognition OR Understanding 7

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 7

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 6

Top 15 of 55 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 Maxell, Ltd.'s patent record in context - here's where to go next.

Hitachi Maxell, Ltd.'s lead technology class is H04N (Pictorial Communication, e.g. Television), 60.3% of its portfolio - see every assignee active in that class. Explore H04N
Ranked #1,723 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Maxell, Ltd. against Stripe, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.1/100 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.