YO

Yasuo Otsuka

HI Hitachi: 6 patents #68 of 3,771Top 2%
HS Hitachi Video And Information Systems: 2 patents #1 of 56Top 2%
Overall (2004): #4,526 of 270,089Top 2%
6
Patents 2004

Issued Patents 2004

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6829031 Liquid crystal display apparatus and optical device for use therein Toru Numata, Mikio Shiraishi, Koji Hirata, Naoyuki Ogura, Shigeru Inaoka +3 more 2004-12-07
6824273 Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi +16 more 2004-11-30
6817720 Image display mechanism and image display device Mikio Shiraishi, Toru Numata 2004-11-16
6783245 Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi +16 more 2004-08-31
6741396 Array lens, lighting optical system, optical unit and imaging apparatus Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Takesuke Maruyama 2004-05-25
6682197 Image display mechanism and image display device Mikio Shiraishi, Toru Numata 2004-01-27