Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
KA

Kohei Asada — 171 Patents

Sony: 162 patents #46 of 25,231Top 1%
SCSumitomo Chemical: 9 patents #537 of 4,033Top 15%
Yokohama, JP: #98 of 49,234 inventorsTop 1%
Overall (All Time): #4,749 of 4,157,543Top 1%
171 Patents All Time
Kohei Asada has been granted 171 US patents while listed as an inventor at Sony. The first was granted in 2003 and the most recent in December 2025. Kohei Asada ranks #4,749 of 4,157,543 US inventors in our database (top 0.11%). Patent records list Kohei Asada in Yokohama, JP.

Issued Patents All Time

Showing 1–25 of 171 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12501208 Earhole-wearable sound collection device, signal processing device, and sound collection method Shinpei Tsuchiya, Daigo Kobayashi, Koji Nageno 2025-12-16
12483850 Information processing apparatus, information processing method, and information processing program Go Igarashi, Naoki Shinmen, Yoshiyuki Kuroda, Masanori Kamata 2025-11-25
12474877 Output apparatus Naoki Shinmen, Go Igarashi, Yoshiyuki Kuroda, Masanori Kamata 2025-11-18
12452570 Audiovisual presentation device and signal processing device Yoshiyuki Kuroda, Go Igarashi, Naoki Shinmen, Masanori Kamata 2025-10-21
12302058 Signal processing apparatus and signal processing method Yasunobu Murata, Yushi Yamabe 2025-05-13
12300210 Signal processing apparatus, signal processing method, signal processing model production method, and sound output device Yasunobu Murata 2025-05-13
12288545 Acoustic signal processing device, acoustic signal processing method, and program Shinpei Tsuchiya, Yushi Yamabe, Kyosuke Matsumoto 2025-04-29
12148412 Information processing apparatus and information processing method Yoshiyuki Kuroda, KOYA SATO, Masaki Kamata, Tetsunori Itabashi, Shigetoshi Hayashi 2024-11-19 $616,000
12125465 Noise cancellation signal generation device and method thereof Kenichi Makino, Tetsunori Itabashi 2024-10-22 $714,000
11895461 Acoustic reproduction system, display device, and calibration method Go Igarashi, Kazunobu Ookuri, Yoshiyuki Kuroda, Naoki Shinmen, Chisato Numaoka 2024-02-06 $812,000
11877121 Speaker system and sound output method Kazunobu Ookuri, Masaki Kamata, Hiroyuki Shirakawa 2024-01-16 $973,000
11838717 Signal processing apparatus and signal processing method Yasunobu Murata, Yushi Yamabe 2023-12-05 $731,000
11765497 Earhole-wearable sound collection device, signal processing device, and sound collection method Shinpei Tsuchiya, Daizen Kobayashi, Koji Nageno 2023-09-19 $596,000
11743626 Sound device and sound system Go Igarashi, Naoki Shinmen 2023-08-29 $531,000
11741938 Earphone device, headphone device, and method Go Igarashi, Naoki Shinmen, Shigetoshi Hayashi 2023-08-29 $531,000
11659347 Information processing apparatus, information processing method, and acoustic system Go Igarashi, Naoki Shinmen, Chisata Numaoka, Yoshiyuki Kuroda 2023-05-23 $669,000
11543521 Information processing apparatus, information processing method, and recording medium Keiichi Osako, Tetsunori Itabashi, Kazuma Yoshii, Kenichi Makino, Yasunobu Murata +1 more 2023-01-03 $662,000
11445289 Audio processing device and audio processing method Go Igarashi, Shigetoshi Hayashi, Naoki Shinmen 2022-09-13 $512,000
11405712 Sound output apparatus Naoki Shinmen, Go Igarashi 2022-08-02 $482,000
11358514 Mobile object and storage medium Yoichiro Sako, Hiroshi Okada, Kazuhiro Watanabe, Kazuyuki Sakoda, Hirofumi Yuchi 2022-06-14 $643,000
11350203 Headphone device Naoki Shinmen, Shigetoshi Hayashi, Go Igarashi 2022-05-31 $807,000
11257476 Signal processing apparatus and signal processing method Shigetoshi Hayashi, Shinpei Tsuchiya, Kazunobu Ookuri 2022-02-22 $868,000
11200880 Information processor, information processing system, and information processing method Kenichi Makino, Tetsunori Itabashi, Shigetoshi Hayashi, Go Igarashi 2021-12-14 $1,962,000
11159905 Signal processing apparatus and method Ryuichi Namba, Masashi Fujihara, Makoto Akune, Koyuru Okimoto, Toru Chinen +3 more 2021-10-26 $1,524,000
11146877 Sound output device and sound guiding device Go Igarashi, Satoshi Suzuki, Koji Nageno 2021-10-12 $1,782,000