Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695912 | Desensitizing solution for offset printing | Hayato Hyakutake, Hirotsuga Saito | 1997-12-09 |
| 4886730 | Liquid developer for electrostatic photography | Ikuo Oto, Hayato Hyakutake | 1989-12-12 |