Granted Patent
Utility
US 6,587,337 · App. 10/002,960
Control method of cooling fan, and information processing device
Inventor:
Dai Sasaki
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Oct 25, 2001
Inventor
Dai Sasaki
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT INC.
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.