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Hitachi Maxell, Limited

USPTO Granted Patents = 1,112

% Expired Patents = 21.9

CIPO Patents = 1

EPO Patents = 45

Trademarks = 4

Forward Citations = 10,085

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1,155 inventors (with patents filed for the assignee):

Sadamu Kuse (39 out of 40 patents)

Katsusuke Shimazaki (33 out of 40 patents)

Mikio Kishimoto (32 out of 35 patents)

4. Motoyasu Terao (30 out of 179 patents)

5. Norio Ohta (29 out of 65 patents)

6. Hideo Fujiwara (28 out of 51 patents)

7. Harukazu Miyamoto (26 out of 228 patents)

8. Hiroyuki Minemura (25 out of 225 patents)

9. Shigeo Aoyama (23 out of 26 patents)

10. Toshinori Sugiyama (22 out of 24 patents)

11. Hikaru Mizutani (22 out of 24 patents)

12. Shoji Saibara (22 out of 23 patents)

13. Masafumi Yoshihiro (21 out of 24 patents)

14. Yoshitake Kato (21 out of 26 patents)

15. Nobuaki Kabuto (20 out of 102 patents)

Core Competencies:

Video Processing

Imaging Device

Projector

Video Display

Image Encoding

Optical Device

Solid-State Light Source

Digital Content Receiver

Non-Aqueous Electrolyte Battery

Infrared Lens Unit

Light Source Device

Multimedia Player

1,112 patents: Sort by Forward Citations

1. 9992469 - Imaging processing device and imaging processing method (2018-06-05),

2. 9955131 - Projector and image display method (2018-04-24),

3. 9942596 - Video processing system for demultiplexing received compressed and non- compressed video signals and transmitting demultiplexed signals (2018-04-10),

4. 9942529 - Image projection device (2018-04-10),

5. 9942483 - Information processing device and method using display for auxiliary light (2018-04-10),

6. 9933553 - Optical element and optical device (2018-04-03),

7. 9931063 - Sensor for measuring motor function, a plastic band, and a device for measuring motor function (2018-04-03),

8. 9930397 - Broadcast receiving device (2018-03-27),

9. 9927923 - Projection-type video display device (2018-03-27),

10. 9924124 - Video display apparatus and terminal apparatus (2018-03-20),

11. 9915764 - Diffractive lens and optical device using the same (2018-03-13),

12. 9906828 - Video processing system for demultiplexing received compressed and non-compressed video signals and transmitting demultiplexed signals (2018-02-27),

13. 9906808 - Moving picture decoding method and moving picture encoding method (2018-02-27),

14. 9904152 - Solid-state light source device (2018-02-27),

15. 9900569 - Projection-type image display device (2018-02-20),

Company Overview

Hitachi Maxell, Limited, based in Osaka, Japan, specializes in advanced video processing technologies and imaging solutions. The company develops a range of products including projectors, video displays, and optical devices, focusing on enhancing visual experiences through innovative image encoding and solid-state light sources. With a commitment to digital content reception, Hitachi Maxell plays a significant role in the evolution of multimedia technologies, catering to diverse applications in both consumer and professional markets.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

1,112 Patents

#24 in Osaka

#207 in Japan

#921 in the World

Hitachi Maxell, Limited

Forward Citations = 10,085

1,155 inventors:

Sadamu Kuse (39 out of 40 patents)

Katsusuke Shimazaki (33 out of 40 patents)

Mikio Kishimoto (32 out of 35 patents)

4. Motoyasu Terao (30 out of 179 patents)

5. Norio Ohta (29 out of 65 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Maxell, Limited. Retrieved from https://idiyas.com/company/hitachi-maxell

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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