Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883711 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yoshibumi Matsuda, Kazumasa Takagi +4 more | 1989-11-28 |
| 4870573 | Microcomputer capable of testing execution of a program with no branch | Kazuhide Kawata | 1989-09-26 |
| 4864401 | Synchronization signal generator without oscillator | Kazuhide Kawata | 1989-09-05 |
| 4842917 | Magnetic recording medium and process for producing the same | Tomoyuki Ohno, Yoshihiro Shiroishi, Sadao Hishiyama, Takaaki Shirakura, Shinya Matsuoka +5 more | 1989-06-27 |
| 4840844 | Magnetic recording medium | Masaaki Futamoto, Yukio Honda, Shinichiro Saito, Takashi Nishimura, Kazuetsu Yoshida +6 more | 1989-06-20 |
| 4833020 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yoshibumi Matsuda, Kazumasa Takagi +4 more | 1989-05-23 |
| 4822182 | Rotary motion driving apparatus | Koichi Matsushita | 1989-04-18 |
| 4806883 | Multifrequency oscillator circuit | Takahiko Tamura | 1989-02-21 |