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Kanagawa, Japan

Hitachi Video and Information Systems, Inc.

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USPTO Granted Patents = 13

% Expired Patents = 15.4

Forward Citations = 136

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47 inventors (with patents filed for the assignee):

Toshimitsu Watanabe (2 out of 32 patents)

Takeshi Mochizuki (2 out of 39 patents)

Masahisa Tsukahara (2 out of 13 patents)

4. Yukio Fujii (2 out of 20 patents)

5. Shinichi Obata (2 out of 9 patents)

6. Hiroaki Shirane (2 out of 3 patents)

7. Eiji Yamamoto (2 out of 14 patents)

8. Makoto Kitamura (2 out of 4 patents)

9. Tetsuya Suzuki (1 out of 50 patents)

10. Masayuki Inoue (1 out of 111 patents)

11. Tsutomu Furuhashi (1 out of 95 patents)

12. Naruhiko Kasai (1 out of 80 patents)

13. Yoshiaki Yamauchi (1 out of 36 patents)

14. Yoshio Suzuki (1 out of 74 patents)

15. Hideaki Ohki (1 out of 25 patents)

13 patents: Sort by Forward Citations

1. 8098695 - Multiplexed audio data decoding apparatus and receiver apparatus (2012-01-17),

2. 7447241 - Multiplexed audio data decoding apparatus and receiver apparatus (2008-11-04),

3. 6938165 - Program writable IC card and method thereof (2005-08-30),

4. 6111630 - Liquid crystal projector having a cooler and an air velocity sensor (2000-08-29),

5. 6091678 - Method and apparatus for detecting position of alternated land and (2000-07-18),

6. 6078702 - Image display apparatus (2000-06-20),

7. 6060845 - Raster distortion correction and deflection circuit arrangement (2000-05-09),

8. 5886482 - Display device with dynamic focus circuit (1999-03-23),

9. 5731796 - Liquid crystal display driving method/driving circuit capable of being (1998-03-24),

10. 5621576 - Optical head for optical memory disk recording device with elastic (1997-04-15),

11. 5432532 - Video printer for printing plurality of kinds of images of different (1995-07-11),

12. 5303396 - Diversity reception having a plurality of antennas for use with moving (1994-04-12),

13. 5293223 - Time-dividing method and circuit, and television white balance control (1994-03-08),

Company Overview

Hitachi Video and Information Systems, Inc. specializes in advanced video and information technologies, focusing on solutions that enhance communication and data management. The company develops innovative systems for various applications, including surveillance, broadcasting, and digital signage. Based in Kanagawa, Japan, Hitachi leverages its expertise in imaging and information processing to deliver high-quality products that meet the evolving needs of industries worldwide, emphasizing reliability and performance.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

13 Patents

#131 in Kanagawa

#3,754 in Japan

#45,104 in the World

Kanagawa, Japan

Hitachi Video and Information Systems, Inc.

Forward Citations = 136

47 inventors:

Toshimitsu Watanabe (2 out of 32 patents)

Takeshi Mochizuki (2 out of 39 patents)

Masahisa Tsukahara (2 out of 13 patents)

4. Yukio Fujii (2 out of 20 patents)

5. Shinichi Obata (2 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Video and Information Systems, Inc.. Retrieved from https://idiyas.com/company/hitachi-video-and-information-systems

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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