Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540679 | Variable grip structure | James Sener, Kevin Costello, Dave Mathieu | 2009-06-02 |
| 7331730 | Retractable writing material | Akinori Furuichi, Yasushi Miyashita | 2008-02-19 |
| D529550 | Writing instrument | — | 2006-10-03 |
| 4821805 | Automatic fire extinguishing system | Yoshifusa Saito, Hiroshi Nakayama, Naoya Matsuoka | 1989-04-18 |
| 4749291 | Inking system for wire dot matrix printer | Masaru Kobayashi, Tetuo Taguchi, Takashi Ishikawa | 1988-06-07 |
| 4359655 | Timer circuit | — | 1982-11-16 |