Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D313618 | Feeder for electronic copying machine | Mikio Kosako, Ritsuko Makihara | 1991-01-08 |
| D310843 | Sorter for copying machine | Mikio Kosako, Ritsuko Makihara | 1990-09-25 |
| D309751 | Electronic copying machine | Mikio Kosako, Ritsuko Makihara | 1990-08-07 |
| D302440 | Copying machine | Mikio Kosako, Ritsuko Makihara | 1989-07-25 |
| D299148 | Shredder | Hiroshi Nishibori, Ritsuko Makihara | 1988-12-27 |
| D299035 | Shredder | Hiroshi Nishibori, Ritsuko Makihara, Mikio Kosako, Harumi Fukuda | 1988-12-20 |