Issued Patents All Time
Showing 76–78 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571721 | Composite concentration system | Tadahiko Yasui, Shizuo Ito, Akira Horiki, Takashi Usami | 1986-02-18 |
| 4532877 | Maneuvering system of watercraft and the like | Osamu Nagata, Masanari Inagaki | 1985-08-06 |
| 4461142 | Method of recovery of excess gas energy of blast furnace gas | Osamu Nagata, Satoru Matsukura, Yozo Sasaki | 1984-07-24 |