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Sanyo Technosound Co., Ltd.

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USPTO Granted Patents = 14

% Expired Patents = 64.3

Forward Citations = 55

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19 inventors (with patents filed for the assignee):

Hideharu Toda (2 out of 3 patents)

Tsutomu Sasaki (2 out of 2 patents)

Masanao Yoshida (2 out of 13 patents)

4. Shoji Arikuma (2 out of 2 patents)

5. Yasuo Yanase (2 out of 4 patents)

6. Katsuyuki Matsumoto (2 out of 5 patents)

7. Toshiyuki Watanabe (1 out of 21 patents)

8. Masahiro Moriyama (1 out of 13 patents)

9. Hitoshi Miyamoto (1 out of 17 patents)

10. Yoshimasa Ono (1 out of 4 patents)

11. Toyohiro Hashimoto (1 out of 1 patent)

12. Haruyuki Shimizu (1 out of 1 patent)

13. Yasushi Obata (1 out of 9 patents)

14. Toshihiro Waguri (1 out of 3 patents)

15. Yoichi Fukami (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 7640393 - Signal reproducing device (2009-12-29),

2. 7623418 - Reproducing apparatus having an opening operation (2009-11-24),

3. 7574273 - Audio recording device (2009-08-11),

4. 7246196 - Data recording device and method to continuously write data across memories without data omission (2007-07-17),

5. 7221625 - Multi-channel acoustic apparatus with DVD reproduction function (2007-05-22),

6. 7194588 - Method for reproducing digital information and digital information recording or reproducing device (2007-03-20),

7. 7130435 - Component selection control system (2006-10-31),

8. 7120918 - Disk recording and playback device in which the disk is held vertically in the device (2006-10-10),

9. 7103268 - Optical disk reproducer (2006-09-05),

10. 7076789 - Disk recording or playback device having a retractable tray with a positioning mechanism for preventing a slider from inadvertently moving laterally (2006-07-11),

11. 6922314 - Disk recording or reproducing device with pickup inclination adjusting mechanism (2005-07-26),

12. 6904532 - Portable electronic device (2005-06-07),

13. 6904488 - Portable electronic device comprising common serial bus connector (2005-06-07),

14. 6868296 - Audio component system (2005-03-15),

Company Overview

Sanyo Technosound Co., Ltd. is a Japanese company based in Daito, specializing in the development and manufacturing of advanced audio equipment and sound systems. The organization focuses on innovative technologies in acoustic engineering, providing solutions for various applications, including professional audio and consumer electronics. With a commitment to quality and performance, Sanyo Technosound serves both domestic and international markets, contributing to the evolution of sound technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#2 in Daito 574-0046

#3,585 in Japan

#42,312 in the World

Sanyo Technosound Co., Ltd.

Forward Citations = 55

19 inventors:

Hideharu Toda (2 out of 3 patents)

Tsutomu Sasaki (2 out of 2 patents)

Masanao Yoshida (2 out of 13 patents)

4. Shoji Arikuma (2 out of 2 patents)

5. Yasuo Yanase (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sanyo Technosound Co., Ltd.. Retrieved from https://idiyas.com/company/sanyo-technosound-company

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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