Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8982001 | Information processing apparatus | Koichi Yamaguchi, Nobuhiro Kumae | 2015-03-17 |
| 7520442 | Input device | Yasushi Itoshiro | 2009-04-21 |
| 7331529 | Input device | Yasushi Itoshiro | 2008-02-19 |
| 5079091 | Green compact of incineration ashes of sewerage sludge and its burned product | Shiro Takahashi, Hiroyuki Kawagishi, Ryoji Kawamura | 1992-01-07 |
| 4997711 | Green compact of incineration ashes of sewerage sludge and its burned product | Shiro Takahashi, Hiroyuki Kawagishi, Ryoji Kawamura | 1991-03-05 |