HI

Hisashi Iechika

SE Seiko Epson: 14 patents #1,343 of 7,774Top 20%
Overall (All Time): #354,678 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
RE41680 Projector Toshiaki Hashizume, Yasunori Ogawa, Shinji Haba, Akitaka Yajima 2010-09-14
7497594 Illuminating device and projector Satoru Nagarekawa, Hisamaro Kato 2009-03-03
RE39702 Projector Toshiaki Hashizume, Yasunori Ogawa, Shinji Haba, Akitaka Yajima 2007-06-26
7198374 Prism structure and projector Yuji Takado 2007-04-03
7118229 Illumination optical system and projector using the same Takeshi Takizawa 2006-10-10
RE39040 Projector Yasunori Ogawa, Shinji Haba, Akitaka Yajima, Toshiaki Hashizume 2006-03-28
6856375 Liquid crystal light valve and projection display device including the same Akitaka Yajima, Mutsuya Furuhata, Toshio Matsumiya 2005-02-15
RE38084 Projector Toshiaki Hashizume, Yasunori Ogawa, Shinji Haba, Akitaka Yajima 2003-04-22
6273569 Illuminating optical system and projector Toshiaki Hashizume 2001-08-14
6247817 Projector Yasunori Ogawa, Shinji Haba, Akitaka Yajima, Toshiaki Hashizume 2001-06-19
6142634 Projector Yasunori Ogawa, Shinji Haba, Akitaka Yajima, Toshiaki Hashizume 2000-11-07
6092901 Polarizing illumination device and projection display device Toshiaki Hashizume, Tomiyoshi Ushiyama 2000-07-25
6000802 Projection-type display apparatus Toshiaki Hashizume, Yasunori Ogawa, Shinji Haba, Akitaka Yajima 1999-12-14
5865521 Projection-type display apparatus Toshiaki Hashizume, Yasunori Ogawa, Shinji Haba, Akitaka Yajima 1999-02-02