YI

Yoshiaki Iwahara

HI Hitachi: 15 patents #2,636 of 28,497Top 10%
HS Hitachi Video And Information Systems: 1 patents #142 of 269Top 55%
Overall (All Time): #328,324 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
5870225 Rear projection type display system Masanori Ogino, Shoji Kuroda, Shuichi Sakamoto, Takashi Itoh, Makoto Kamiya 1999-02-09
5758940 Liquid crystal Projection display Masanori Ogino, Takeo Yamada, Shigeru Mori, Fumio Inoue, Akio Yamamoto 1998-06-02
5611611 Rear projection type display system Masanori Ogino, Shoji Kuroda, Shuichi Sakamoto, Takashi Itoh, Makoto Kamiya 1997-03-18
5537171 Liquid crystal projection display Masanori Ogino, Takeo Yamada, Shigeru Mori, Fumio Inoue, Akio Yamamoto 1996-07-16
5467221 Multi-screen projector Shoji Kuroda, Shuichi Sakamoto, Masanori Ogino 1995-11-14
5412437 Projection type display device Masanori Ogino, Syuichi SAKAMOTO 1995-05-02
5365369 Two dimensional moire reduction type projection display Masanori Ogino, Shoji Kuroda 1994-11-15
5355187 Liquid crystal projection display Masanori Ogino, Takeo Yamada, Shigeru Mori, Fumio Inoue, Akio Yamamoto 1994-10-11
5200854 Large-screen projection-type display Masanori Ogino, Shuichi Sakamoto, Yukihiro Kobayashi 1993-04-06
5085495 Multi-screen projector Masanori Ogino, Masutomi Ohta, Shoji Kuroda, Yuzo Tamura, Yukihiro Kobayashi 1992-02-04
5011277 Multi-screen projector Masanori Ogino, Yuzo Tamura, Shoji Kuroda 1991-04-30
4969731 Liquid crystal panel type projection display Masanori Ogino, Yuzo Tamura 1990-11-13
4919518 Multi-screen projector Masanori Ogino, Hiroshi Kaiwa, Yuzo Tamura, Akio Yamamoto 1990-04-24
4895429 Rear projection apparatus Masanori Oguino, Yuzo Tamura 1990-01-23
4729031 Coupling system for image projection Shobu Saito, Isao Yoshizaki, Masanori Oguino, Osamu Shuugizono 1988-03-01