Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862249 | Ball-point pen tip and ink refill | Atsushi Nakajima, Kazuhiko Furukawa, Hiroyuki Muto | 2011-01-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862249 | Ball-point pen tip and ink refill | Atsushi Nakajima, Kazuhiko Furukawa, Hiroyuki Muto | 2011-01-04 |