Granted Patent
Utility
US 5,517,101 · App. 08/162,623
Stepping motor control device for automobile air-conditioning system
Inventors:
Yoshimi Sakai, Toshiya Yamashita, Fuhito Umegaki, Hiroshi Ohsawa, Shinichi Ohi
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Dec 7, 1993
Inventors
Yoshimi Sakai
Toshiya Yamashita
Fuhito Umegaki
Hiroshi Ohsawa
Shinichi Ohi
Assignee (at issue)
Zexel GmbH
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.