Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234738 | Thin substrate transferring apparatus | Katsuhiko Kato | 2001-05-22 |
| 4778331 | Carrier system for silicon wafer | Susumu Ishikawa | 1988-10-18 |
| 4735548 | Carrier system for clean room | Susumu Ishikawa | 1988-04-05 |