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Denon, Ltd.

USPTO Granted Patents = 20

% Expired Patents = 10.0

Trademarks = 2

Forward Citations = 241

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21 inventors (with patents filed for the assignee):

Tadahiko Sakamoto (4 out of 6 patents)

Atsushi Ishibashi (2 out of 51 patents)

Masayuki Hori (2 out of 4 patents)

4. Kazuhisa Machida (2 out of 22 patents)

5. Tsugio Endou (2 out of 2 patents)

6. Hideki Ikeda (2 out of 2 patents)

7. Atsushi Oonishi (2 out of 2 patents)

8. Akihito Kimura (2 out of 2 patents)

9. Kouji Nakajima (1 out of 17 patents)

10. Mitsugi Fukushima (1 out of 2 patents)

11. Toshiyuki Kajigano (1 out of 2 patents)

12. Kiyoshi Kobiyama (1 out of 2 patents)

13. Keishi Matsunaga (1 out of 1 patent)

14. Jyoji Watanabe (1 out of 1 patent)

15. Kazuma Takenaka (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 7072882 - Apparatus for reproducing video, still images, audio and text from data based upon a processing order (2006-07-04),

2. 6985418 - Optical disk reproducing apparatus (2006-01-10),

3. 6973019 - Recording medium reproducing apparatus (2005-12-06),

4. 6967527 - Pulse width modulation amplifier (2005-11-22),

5. 6951024 - Optical disk reproducing apparatus and reproducing method (2005-09-27),

6. 6919771 - Digital amplifier (2005-07-19),

7. 6842417 - Audio system (2005-01-11),

8. 6816453 - Communication system using orthogonal frequency division multiplexed signal (2004-11-09),

9. D496922 - Digital audio disk player (2004-10-06),

10. 6791909 - Optical disc reproducing apparatus (2004-09-14),

11. 6771582 - Control dial and optical disk apparatus having the control dial (2004-08-03),

12. 6754150 - Contents data reproducing apparatus (2004-06-22),

13. 6680931 - Data multiplex broadcasting method, data multiplex broadcasting system, receiving device, and recording device (2004-01-20),

14. 6650600 - Digital audio disc recorder (2003-11-18),

15. 6600700 - Digital audio disc recorder (2003-07-29),

Denon, Ltd. is a renowned Japanese electronics company specializing in the manufacturing and distribution of audio and video equipment. With a rich history dating back to 1910, Denon has consistently been at the forefront of innovation, producing high-quality audio products such as speakers, headphones, amplifiers, and receivers. Their commitment to superior sound and cutting-edge technology has earned them a global reputation among audio enthusiasts and professionals. Visit their website to explore their range of products and experience the art of sound.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

20 Patents

#1,341 in Tokyo

#2,939 in Japan

#31,176 in the World

Denon, Ltd.

Forward Citations = 241

21 inventors:

Tadahiko Sakamoto (4 out of 6 patents)

Atsushi Ishibashi (2 out of 51 patents)

Masayuki Hori (2 out of 4 patents)

4. Kazuhisa Machida (2 out of 22 patents)

5. Tsugio Endou (2 out of 2 patents)

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