Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9994066 | Erasing implement and writing implement provided with erasing implement | Hiroshi Ohtsuka, Tsuyoshi Nishida | 2018-06-12 |
| 6382862 | Application liquid reservoir | Kazuhiko Furukawa | 2002-05-07 |
| 5980029 | Ink refilling assembly | — | 1999-11-09 |
| 5845682 | Apparatus for refilling an ink cartridge | — | 1998-12-08 |
| 5819627 | Device for making a hole in an ink cartridge | — | 1998-10-13 |
| 5784086 | Ink cartridge holding box for refilling | — | 1998-07-21 |
| 5595223 | Ink refilling assembly | — | 1997-01-21 |
| 5513747 | Ink refill kit | — | 1996-05-07 |
| 5487615 | Ribbon drive assembly for ribbon cartridge | — | 1996-01-30 |