Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661581 | Optical communication unit | Masato Mushiage, Naotaro Nakata, Yuta Tezen | 1997-08-26 |
| 5612227 | Liquid boundary detecting method and apparatus and liquid removing method and apparatus | Tsuyoshi Inoue, Keiichi Nakamachi, Takeshi Nakamura | 1997-03-18 |