Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885750 | Method and apparatus for error correction | Kazunori Nishikawa, Kazuya Yamada | 1989-12-05 |
| 4868827 | Digital data processing system | Kazuya Yamada, Kazunori Nishikawa, Yasuhiro Yamada | 1989-09-19 |
| 4857617 | Process for producing a high softening point hydrocarbon resin | Katsuo Takemoto, Yasushi Sakai | 1989-08-15 |
| 4834562 | Print control apparatus | Naoki Shikanai, Tetsuo Okuhara | 1989-05-30 |
| 4811370 | Digital muting circuit | Kazuya Yamada, Kazunori Nishikawa | 1989-03-07 |