Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217017 | Paper-feeding apparatus and method of feeding paper | — | 2001-04-17 |
| 5818487 | Ink jet printer | Kotaro Yoshimura, Shigemi Togashi, Kazumitsu Sunohara | 1998-10-06 |
| 5085020 | Portable, assemblable-disassemblable staircase | — | 1992-02-04 |
| 4596104 | Joint structure for a structural bar assembly | — | 1986-06-24 |