Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6385257 | Frequency demodulating circuit, optical disk apparatus thereof and preformating device | Minoru Tobita, Susumu Tosaka, Yoshikatsu Niwa, Goro Fujita | 2002-05-07 |
| 6310851 | Frequency demodulating circuit, optical disk apparatus thereof and preformating device | Minoru Tobita, Susumu Tosaka, Yoshikatsu Niwa, Goro Fujita | 2001-10-30 |
| 6012474 | Mass flow control method and device utilizing a sonic nozzle | Masaki Takamoto, Masahiro Ishibashi, Yoshitaka Ina, Yoshikazu Yokoi, Masao Hayakawa | 2000-01-11 |
| 4861471 | Activated sludge treatment apparatus | Shunji Yasuda, Shigehito Ikeda | 1989-08-29 |