Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890121 | Halftone image printing device | Shuzo Hirahara, Hitoshi Nagato, Kazuhiko Higuchi, Tadayoshi Ohno, Tsutomu Kanai | 1989-12-26 |
| 4884080 | Color image printing apparatus | Shuzo Hirahara, Hitoshi Nagato, Kazuhiko Higuchi, Tadayoshi Ohno, Tsutomu Kanai +1 more | 1989-11-28 |
| 4880260 | Method of joining pipes | Taiji Gotoh, Hidetoshi Yamamoto | 1989-11-14 |
| 4850096 | Method of joining pipes | Taiji Gotoh, Hidetoshi Yamamoto | 1989-07-25 |
| 4816670 | Optical measuring head | Shiro Kitamura, Junji Koizumi | 1989-03-28 |
| 4809137 | Back-mirror fitted with illumination light at car side | — | 1989-02-28 |