Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9285200 | Processing diameter measurement device with grinder measurement malfunction assessment function | Takashi Nakagawa | 2016-03-15 |
| 6554711 | Music game machine with interactive second game device | Sadaharu Katori | 2003-04-29 |
| 6425822 | Music game machine with selectable controller inputs | Koichi Hayashida | 2002-07-30 |