Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880939 | 2,5,6,7-tetranor-18,18,19,19-tetradehydro-4,8-inter-m-phenylene PGI.sub.2 derivatives | Kiyotaka Ohno, Shintaro Nishio | 1989-11-14 |
| D303980 | Electronic calculator | Takahisa Yubisui, Hiroshi Sakaguchi | 1989-10-10 |
| D303807 | Electronic calculator with memo | Takahisa Yubisui, Hiroshi Sakaguchi | 1989-10-03 |
| D303681 | Electronic calculator | Hiroshi Sakaguchi | 1989-09-26 |
| D303679 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1989-09-26 |
| D303539 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1989-09-19 |
| D303121 | Electronic calculator | Hiroshi Sakaguchi, Katsuhiro Iida | 1989-08-29 |
| 4796217 | Rounding unit for use in arithmetic processing of floating point data | Junichi Iwasaki | 1989-01-03 |