Granted Patent
Utility
US 5,862,436 · App. 08/956,790
Fixing apparatus and method for electrophotographic apparatus including temperature detecting mechanism for heat roller
Inventors:
Katsumi Ishizawa, Shuho Yokokawa, Satoshi Aita, Isao Watanabe, Hidenori Takayasu, Hiroshi Udo
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: Oct 23, 1997
Inventors
Katsumi Ishizawa
Shuho Yokokawa
Satoshi Aita
Isao Watanabe
Hidenori Takayasu
Hiroshi Udo
Assignee (at issue)
Hitachi Koki Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.