Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818376 | Leakage prevention apparatus for a classifier | Mitsuhiro Ito, Takeshi Furukawa, Satoru Fujii | 1989-04-04 |
| 4816788 | High frequency band-pass filter | Youhei Ishikawa | 1989-03-28 |
| 4813507 | Axle beam including a protecting member | Yutaka Inuzuka, Hideki Takeo | 1989-03-21 |
| 4814657 | Energy converting device | Masafumi Yano, Hiroshi Shimizu | 1989-03-21 |