Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669039 | Image heating apparatus capable of varying feeding intervals between recording materials | Yasumasa Ohtsuka, Yohji Tomoyuki, Akira Hayakawa, Daizo Fukuzawa | 1997-09-16 |
| 5621510 | Image heating apparatus with driving roller having low thermal expansion coefficient outer layer | Tatsunori Ishiyama, Akira Hayakawa, Takashi Shibuya, Hiroyuki Oba | 1997-04-15 |
| 5592276 | Image fixing device with heater responsive to thermal stress | Yasumasa Ohtsuka, Shunji Nakamura, Yohji Tomoyuki, Akira Hayakawa, Daizo Fukuzawa | 1997-01-07 |