Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669487 | IC card | Hirotaka Nishizawa, Haruji Ishihara, Yosuke Yukawa | 2003-12-30 |
| 6661438 | Display apparatus and portable information processing apparatus | Keisuke Tsuji, Roy Nakashima | 2003-12-09 |
| 6621508 | Information processing system | Keisuke Tsuji, Roy Nakashima | 2003-09-16 |
| 6608784 | Non-volatile semiconductor memory device | Motoki Kanamori, Kunihiro Katayama, Shigeo Kurakata, Atsushi Shikata | 2003-08-19 |
| 6597378 | Display device, portable information processing apparatus, information storage medium, and electronic apparatus | Roy Nakashima | 2003-07-22 |