Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6955598 | Designated position detector and game controller utilizing the same | Yasuji Hagiwara, Youtaro Sakakura, Masahiro Soma | 2005-10-18 |
| 6956559 | Character input apparatus | Yasuji Hagiwara, Masahiro Soma, Youtaro Sakakura | 2005-10-18 |