Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516978 | Colored character printed on key button | Takeo Hosoe, Toshinori Oda, Sosuke Ohtsuka | 1985-05-14 |
| 4472758 | Capacitive switching device | Takeo Hosoe, Mitumasa Kako | 1984-09-18 |