Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359949 | Demodulation circuit, a decode circuit and a digital PLL circuit for an optical disc apparatus | Tsuyoshi Hirabuki | 2002-03-19 |
| 6175542 | Demodulation circuit, a decode circuit and a digital PLL circuit for an optical disc apparatus | Tsuyoshi Hirabuki | 2001-01-16 |
| 5946279 | Servo circuit, digital PLL circuit and optical disk device | Tsuyoshi Hirabuki | 1999-08-31 |
| 5625248 | Piezoelectric buzzer | Shuho Saito, Osamu Segawa, Toshiaki Yamashita | 1997-04-29 |
| 5307503 | Shielded circuit module with terminal pins arrayed on four sides for connection to a computer board | Yoshiyuki Kato, Koji Ide, Toshihiko Yasuma, Richard Geiger, Akio Tanaka +2 more | 1994-04-26 |
| 4366296 | Unsaturated copolymers | Sadao Kitagawa | 1982-12-28 |
| 4315088 | Process for producing .alpha.-olefin polymer | Sadao Kitagawa, Teruo Saito | 1982-02-09 |
| 4237254 | Process for producing olefin polymers | Sadao Kitagawa, Teruo Saito, Shoichi Masukawa, Yoshihisa Watanabe, Makoto Imanari | 1980-12-02 |