Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677798 | Image forming lens system | Takayuki Ito, Takashi Iizuka | 1997-10-14 |
| 5677904 | Disc player | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-10-14 |
| 5671201 | Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-09-23 |
| 5646921 | Method and apparatus for reproducing information recorded on CLV disc type record medium | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-07-08 |
| 5619484 | Pulling-in circuit for PLL circuit, pulling-in method for PLL circuit, PLL circuit device and apparatus for reproducing optical disc | Hiroshi Yokota, Ryuichi Naito, Katsumi Ishii, Shinichi Naohara, Yoshifumi Tsukada +1 more | 1997-04-08 |