Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878134 | Information signal recording apparatus for aligning helical slant tracks | Toshiyuki Masui, Koji Takahashi, Kenichi Nagasawa | 1989-10-31 |
| 4875222 | Information signal transmission system by predictive differential coding | Toshiyuki Masui | 1989-10-17 |
| 4875090 | Information data transmission system | Makoto Shimokoriyama, Shinichi Yamashita, Naoto Abe, Masahiro Takei, Koji Takahashi | 1989-10-17 |
| 4862292 | Digital information signal recording apparatus | Masahiko Enari, Katsuji Yoshimura, Akio Aoki, Shinichi Yamashita, Makoto Shimokoriyama +3 more | 1989-08-29 |
| 4858037 | Information signal recording and/or reproducing apparatus | Masahiro Takei, Toshiyuki Masui, Kouji Takahashi | 1989-08-15 |
| 4811120 | Information signal recording and/or reproducing apparatus | Susumu Kozuki, Hiroyuki Takimoto, Kouji Takahashi, Kenichi Nagasawa | 1989-03-07 |
| 4807057 | Data recording apparatus | Masahiro Takei, Kouji Takahashi, Toshiyuki Masui, Tsutomu Fukatsu, Kenichi Nagasawa | 1989-02-21 |
| 4803570 | Rotary head type multichannel information signal reproducing apparatus having sub-information search function | Toshiyuki Masui, Tsutomu Fukatsu, Koji Takahashi, Masahiro Takei, Kenichi Nagasawa | 1989-02-07 |
| 4803684 | Apparatus for data error correction using rounding technique | Susumu Kozuki, Masahiro Takei, Toshiyuki Masui, Masahide Hirasawa | 1989-02-07 |