Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836034 | Force sensing apparatus | Kohji Izumi, Hirotoshi Eguti, Eiichi Ohta, Yuhji Kimura | 1989-06-06 |
| 4834533 | Measuring the refractive index of liquid | Masanori Horike, Michio Umezawa | 1989-05-30 |