Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12287036 | Valve | Koji Hiramatsu, Tomoya Kanzaki, Tadayuki Yakushijin | 2025-04-29 |
| 11226043 | Ball valve | Koji Hiramatsu, Tadayuki Yakushijin | 2022-01-18 |
| 10221964 | Valve device | Masahiko Sogao, Masakazu Nagao | 2019-03-05 |
| D802717 | Valve | Masahiko Sogao, Masakazu Nagao | 2017-11-14 |
| 7113927 | DATA DISTRIBUTION SYSTEM, DATA DISTRIBUTION METHOD, PORTABLE TERMINAL WITH DATA RECEIVING CAPABILITY, PORTABLE TERMINAL WITH DATA TRANSMITTING/RECEIVING CAPABILITY, RECORDING MEDIUM ONTO WHICH DATA CONTENT IS RECORDED, ENCODING APPARATUS, AND DECODING APPARATUS | Yoshiaki Tanaka | 2006-09-26 |
| 6122382 | System for processing audio surround signal | Toshiyuki Iida | 2000-09-19 |
| 6052470 | System for processing audio surround signal | — | 2000-04-18 |
| 5844993 | Surround signal processing apparatus | Toshiyuki Iida | 1998-12-01 |
| 5799094 | Surround signal processing apparatus and video and audio signal reproducing apparatus | — | 1998-08-25 |
| 5761315 | Surround signal processing apparatus | Toshiyuki Iida, Yasuhisa Okabe | 1998-06-02 |
| 5579396 | Surround signal processing apparatus | Toshiyuki Iida, Yasuhisa Okabe | 1996-11-26 |
| 4400633 | Level detection circuit | — | 1983-08-23 |
| 4262313 | Bias current setting apparatus in a magnetic recording and reproducing apparatus | — | 1981-04-14 |