Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6685542 | Grinding machine | Takashi Mori, Hiroshi Sasayama | 2004-02-03 |
| 6368026 | Spherical body transport apparatus | — | 2002-04-09 |
| 6358132 | Apparatus for grinding spherical objects | Kazuhisa Arai | 2002-03-19 |