Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764191 | Illumination type keyboard | Shigetaka Douzono, Tetsuya Koma, Yoshiharu Abe | 2004-07-20 |
| 6696199 | Battery | Hiroaki Yoshida, Nobutaka Imamura, Tatsuya Iwamoto, Taro Naoi, Naozumi Miyanaga +4 more | 2004-02-24 |
| 6682847 | Aluminum battery casing with corrosion preventing film | Shinya Kitano, Hiroaki Yoshida | 2004-01-27 |