Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845143 | Pattern-forming material | Miwa Sakata, Yoshio Yamashita, Takateru Asano, Kenji Kobayashi | 1989-07-04 |
| 4840147 | Combustion chamber of a two-stroke engine | Toshio Tanahashi, Norihiko Nakamura, Hiroshi Noguchi, Kenichi Nomura, Toyokazu Baika +5 more | 1989-06-20 |
| 4826943 | Negative resist material | Miwa Sakata, Yoshio Yamashima | 1989-05-02 |
| 4797096 | Measuring tool for the selection of artificial teeth | Takashi Miwa, Fujio Yamagishi | 1989-01-10 |
| 4795345 | Artificial teeth | Minoru Ai, Kenji Hiranuma, Jinichi Obana | 1989-01-03 |