Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886529 | Polishing robot and polishing method using the same | Minoru Nakafuji | 1989-12-12 |
| 4828834 | Rechargeable organic electrolyte cell | Toru Nagaura, Masaaki Yokokawa | 1989-05-09 |
| 4801247 | Variable displacement piston pump | Susumu Yoshino, Akira Ohashi, Masao Egi, Yasuyuki Shingu, Takashi Yoshioka +1 more | 1989-01-31 |