Granted Patent
Utility
US 5,850,189 · App. 08/636,107
Apparatus and method for infrared communication
Inventors:
Jiro Sakanaka, Astushi Watanabe, Yoichi Mizukoshi
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Apr 22, 1996
Inventors
Jiro Sakanaka
Astushi Watanabe
Yoichi Mizukoshi
Assignee (at issue)
International Business Machines Corporation
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.