Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153817 | Electronic apparatus system including an expansion device removably connected to a removable battery pack | Toshio Kikukawa, Keizo Ohgami, Takaichi Kobayashi | 1992-10-06 |
| 5088156 | Shaft lock device and portable information processing apparatus with shaft lock device | — | 1992-02-18 |
| 5083290 | Lunch box type electronic apparatus | — | 1992-01-21 |
| 5052078 | Hinge mechanism for portable electronic apparatus | — | 1991-10-01 |
| 4951241 | Portable apparatus having an adjustable handle-leg member | Katumaru Sasaki | 1990-08-21 |
| 4908074 | Gallium arsenide on sapphire heterostructure | Kokichi Ishibitsu | 1990-03-13 |