Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12167213 | Audio circuit, and reproduction method of DSD signal | Moto YAMADA | 2024-12-10 |
| 12119842 | Audio signal processing circuit | — | 2024-10-15 |
| 9466311 | Audio signal processing circuit and electronic device using the same | Katsuyuki Ono | 2016-10-11 |
| 8931945 | Lighting apparatus | — | 2015-01-13 |
| 7775041 | Stirling engine | Yoshiyuki Kitamura, Kazushi Yoshimura, Kenji Takai, Jin Sakamoto | 2010-08-17 |
| 7571606 | Stirling engine | Jin Sakamoto, Kazushi Yoshimura, Yoshiyuki Kitamura, Hiroshi Yasumura | 2009-08-11 |
| 7168248 | Stirling engine | Jin Sakamoto, Kazushi Yoshimura, Kenji Takai, Yoshiyuki Kitamura, Hiroshi Yasumura +1 more | 2007-01-30 |
| 6067285 | Optical disc | Kenji Ohta, Toshikazu Nagaura, Masayasu Futagawa, Yoshiteru Murakami, Hiroyuki Ikenaga +3 more | 2000-05-23 |
| 5490131 | Optical disk | Kenji Ohta, Toshikazu Nagaura, Masayasu Futagawa, Yoshiteru Murakami, Hiroyuki Ikenaga +3 more | 1996-02-06 |