Granted Patent
Utility
US 6,824,273 · App. 10/422,952
Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same
Inventors:
Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi, Takashi Kakuda, Yutaka Matsuda, Takuya Shiaki, Futoshi Yamasaki, Atsushi Ishibashi, Koichi Umezawa, Takeshi Hoshino, Shigehisa Hagura, Makoto Fukatsu, Nobuyuki Kaku, Kenji Fuse, Satoshi Ohuchi, Tomohiro Miyoshi, Naohiro Ozawa, Masahiko Yatsu, Yasuo Otsuka, Takesuke Maruyama
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Apr 25, 2003
Inventors
Nobuhiko Konuma
Hidetomo Yoshimura
Seiichi Sekiguchi
Mikiharu Kuwata
Masaharu Deguchi
Takashi Kakuda
Yutaka Matsuda
Takuya Shiaki
Futoshi Yamasaki
Atsushi Ishibashi
Koichi Umezawa
Takeshi Hoshino
Shigehisa Hagura
Makoto Fukatsu
Nobuyuki Kaku
Kenji Fuse
Satoshi Ohuchi
Tomohiro Miyoshi
Naohiro Ozawa
Masahiko Yatsu
Yasuo Otsuka
Takesuke Maruyama
Assignees (at issue)
HITACHI, LTD.
Hitachi Video and Information Systems, 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.