Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453812 | Ink supply control device for printing machines and a method therefor | Hideki Ikeda, Hiroshi Sugimoto | 2002-09-24 |
| 6389968 | Ink supply control device for printing machines and a method therefor | Hiroshi Sugimoto, Hideki Ikeda | 2002-05-21 |