Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877370 | Diffuser for centrifugal compressor | Koji Nakagawa, Takeo Takagi, Haruki Sakai | 1989-10-31 |
| 4839168 | Hair cosmetics | Hidetoshi Iwabuchi | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877370 | Diffuser for centrifugal compressor | Koji Nakagawa, Takeo Takagi, Haruki Sakai | 1989-10-31 |
| 4839168 | Hair cosmetics | Hidetoshi Iwabuchi | 1989-06-13 |