Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289249 | Electrophotographic printer having a gravity driven toner recycling unit | Mikio Yamamoto, Minoru Isobe, Shigeki Nakajima, Hisao Ono | 1994-02-22 |
| 5280324 | Toner cartridge | Hisao Ono, Yukio Ota, Hiroshi Kikuchi, Shigeki Nakajima | 1994-01-18 |