Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6914982 | Folding portable cellular phone | Ryuichi Toyoda, Ko Kondo, Akitoshi Mori, Teruo Nanmoku | 2005-07-05 |
| 6428924 | Battery storage structure for portable electronic device | Haruo Hayakawa | 2002-08-06 |
| 4881258 | Portable type mobile radio telephone | Ryoichi Kaiwa, Michiyoshi Kudo, Keiki Kobayashi, Naotomo Adachi | 1989-11-14 |
| 4670633 | Keyboard assembly with lighting | Ryoichi Kaiwa, Takeo Yasuho | 1987-06-02 |
| 4609790 | Locking apparatus for telephone | Ryoichi Kaiwa | 1986-09-02 |