Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871119 | Impact crushing machine | Hiroyuki Murata, Chouji Hino, Harunaga Kiuchi, Masahiro Chiji | 1989-10-03 |
| 4834298 | Crushing method and apparatus | Hiroyuki Murata, Masahiro Chiji, Tadao Kuwahara, Harunaga Kiuchi, Masamichi Cho | 1989-05-30 |
| 4832144 | Position detector | Azuma Murakami, Yoshinori Taguchi, Kenichi Takahashi, Yoshiaki Tomofuji | 1989-05-23 |
| 4815431 | Oil heating apparatus for internal combustion engine | Hiroshi Yorita, Toshihiko Igashira, Kouichi Sakakibara, Masao Wakayama, Takashi Sato +1 more | 1989-03-28 |