Granted Patent
Utility
US 5,860,719 · App. 08/454,631
Optical apparatus and cooling method thereof
Inventors:
Toshihiro Suzuki, Noriyuki Ohasi, Tsutomu Nagakari, Tetsuya Hamada, Hisashi Yamaguchi, Masaru Ishiwa
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: May 31, 1995
Inventors
Toshihiro Suzuki
Noriyuki Ohasi
Tsutomu Nagakari
Tetsuya Hamada
Hisashi Yamaguchi
Masaru Ishiwa
Assignee (at issue)
Fujitsu Limited
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.