Granted Patent
Utility
US 6,833,538 · App. 10/479,757
Device for determining focused state of taking lens
Inventors:
Tadashi Sasaki, Masao Wada, Tetsuji Inoue, Ryoji Kumaki, Shinobu Nakamura, Haruo Tominaga, Hiroyuki Horiguchi, Hideaki Sugiura, Masayuki Sugawara
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Dec 4, 2003
Inventors
Tadashi Sasaki
Masao Wada
Tetsuji Inoue
Ryoji Kumaki
Shinobu Nakamura
Haruo Tominaga
Hiroyuki Horiguchi
Hideaki Sugiura
Masayuki Sugawara
Assignees (at issue)
Fuji Photo Optical Co., Ltd.
NIPPON HOSO KYOKAI
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.