Granted Patent
Utility
US 6,343,189 · App. 09/598,979
Controller for controlling a built-in flash of a camera
Inventors:
Tetsuo Hosokawa, Toshihiro Hamamura, Hiroyuki Takahashi, Tadahisa Ohkura, Hidefumi Kaneko
Patented Case
View Patent ↗
Granted: Jan 29, 2002
Filed: Jun 21, 2000
Inventors
Tetsuo Hosokawa
Toshihiro Hamamura
Hiroyuki Takahashi
Tadahisa Ohkura
Hidefumi Kaneko
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.