Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849730 | Force detecting device | Kouji Izumi, Eiichi Ohta, Hiroyuki Okamoto, Masumitsu Ino, Hirotoshi Equchi | 1989-07-18 |
| 4805032 | Total contact type photoelectric conversion device and optical reader using the same | Yoshio Watanabe, Hiroyuki Horiguchi | 1989-02-14 |