Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750432 | Heat roller control apparatus with roller surface temperature variations determination | — | 2004-06-15 |
| 6248983 | Heater control apparatus with variable input voltage rectification | — | 2001-06-19 |
| 4463223 | Head phone | Hiroshi Satoh | 1984-07-31 |