Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677583 | Apparatus for decimal multiplication | Toru Ohtsuki, Yoshio Oshima, Sako Ishikawa, Hideaki Yabe | 1987-06-30 |
| 4635220 | Binary coded decimal number division apparatus | Hideaki Yabe, Yoshio Oshima, Sako Ishikawa, Toru Ohtsuki | 1987-01-06 |
| 4603397 | Binary coded decimal number division apparatus | Toru Ohtsuki, Yoshio Oshima, Sako Ishikawa | 1986-07-29 |
| 4543641 | Multiplication device using multiple-input adder | Yoshio Oshima, Sako Ishikawa, Toru Ohtsuki | 1985-09-24 |