Issued Patents All Time
Showing 51–75 of 103 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309129 | Writing utensils | Osamu Takahashi | 2001-10-30 |
| 6227734 | Knocking writing utensil | Yoshio Noguchi | 2001-05-08 |
| 6227739 | Liquid container | — | 2001-05-08 |
| 6210058 | Side knock type mechanical pencil | Tomiji Ueki, Yoshihide Mitsuya | 2001-04-03 |
| 6176632 | Liquid container | Yoshio Noguchi, Tomohiro Fueki | 2001-01-23 |
| 6155734 | Rotary stick projecting device | Yoshio Noguchi, Sachio Arai | 2000-12-05 |
| 6116799 | Installation structure of lead advancing mechanism in writing instrument | — | 2000-09-12 |
| 6102602 | Liquid container cap | Yoshio Noguchi, Tomohiro Fueki | 2000-08-15 |
| 6099182 | Side knock-type mechanical pencil | Tomiji Ueki, Yoshihide Mitsuya | 2000-08-08 |
| 6082916 | Mechanical pencil | Yoshihide Mitsuya | 2000-07-04 |
| 6039485 | Double-chuck mechanical pencil | Yoshihide Mitsuya, Tadayoshi Ebinuma | 2000-03-21 |
| 6039484 | Writing instrument | Yoshihide Mitsuya | 2000-03-21 |
| 5997200 | Barrel with finger gripping means | Yoshihide Mitsuya | 1999-12-07 |
| 5988913 | Double-chuck mechanical pencil | Shouji Anzai, Yoshihide Mitsuya | 1999-11-23 |
| 5988908 | Barrel with finger gripping means | Yoshihide Mitsuya | 1999-11-23 |
| 5988914 | Writing instrument | Yoshihide Mitsuya | 1999-11-23 |
| 5971644 | Side knock-type writing instrument | Tomiji Ueki, Yoshihide Mitsuya | 1999-10-26 |
| 5947620 | Double-chuck mechanical pencil | Shouji Anzai, Tadashi Yamamoto, Yoshihide Mitsuya | 1999-09-07 |
| 5890827 | Bar extruding implement with ejector | Shouji Anzai, Yoshihide Mitsuya | 1999-04-06 |
| 5890825 | Composite writing instrument | Yoshio Noguchi, Seiichi Kobayashi, Naoki Sekuguchi | 1999-04-06 |
| 5882132 | Side knock-type mechanical pencil | Yoshio Noguchi | 1999-03-16 |
| 5836707 | Side knock type mechanical pencil | Tomiji Ueki, Yoshihide Mitsuya | 1998-11-17 |
| 5791797 | Side knock type mechanical pencil | Tomiji Ueki, Yoshihide Mitsuya | 1998-08-11 |
| 5702193 | Side knock type mechanical pencil | Tomiji Ueki, Yoshihide Mitsuya | 1997-12-30 |
| 5535487 | Clip attachment apparatus for a writing instrument | Tadayoshi Ebinuma, Allen Drucker | 1996-07-16 |