Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9995363 | Liquid-sealed vibration damping device | — | 2018-06-12 |
| 9939040 | Liquid-sealed vibration prevention device | — | 2018-04-10 |
| 5190385 | Ink ribbon regenerating device | Tetuo Taguchi, Hiroshi Wada, Keiichi Emura, Yoshihiro Wada, Isao Onuki +2 more | 1993-03-02 |
| 4626120 | Resilient writing nib with offset flattened portion | Hishao Fukui, Takashi Tamura | 1986-12-02 |