Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788989 | Process for the temperature control of a drying apparatus for tobacco leaves | Hitosi Sugawara, Yasuo Saitoh | 1988-12-06 |
| 4660298 | Process for the temperature control of a drying apparatus | Hitosi Sugawara, Yasuo Saitoh | 1987-04-28 |
| 4587743 | Method of controlling temperature of drying machine | Hitosi Sugawara, Yasuo Saitoh | 1986-05-13 |