Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656078 | Key top with an identification legend | Hideo Goto, Takeo Hosoe | 1987-04-07 |
| 4516978 | Colored character printed on key button | Hideo Goto, Takeo Hosoe, Sosuke Ohtsuka | 1985-05-14 |