YT

Yohei Takano

Ricoh Company: 47 patents #255 of 9,818Top 3%
Overall (All Time): #59,675 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 26–47 of 47 patents

Patent #TitleCo-InventorsDate
10228546 Projection optical system, projection apparatus, and projection system Hibiki Tatsuno, Yasuyuki Shibayama 2019-03-12
10067324 Projection device and projection system 2018-09-04
9864260 Image display apparatus and image display unit Yasuyuki Shibayama, Hibiki Tatsuno 2018-01-09
9864177 Projection optical system, projection apparatus, and projection system Hibiki Tatsuno, Yasuyuki Shibayama 2018-01-09
9766438 Projection optical system and image display apparatus including a refraction optical system and first and second reflecing surfaces Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama 2017-09-19
9690084 Projection device and projection system 2017-06-27
9645371 Projection optical system and projector apparatus 2017-05-09
9523842 Projection device and projection system 2016-12-20
9261767 Projection optical system and image display apparatus Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama 2016-02-16
9244257 Projection optical system and projector apparatus 2016-01-26
9013802 Zoom lens, imaging device and information device Hiromichi Atsuumi 2015-04-21
8982474 Zoom lens and information device Hiromichi Atsuumi 2015-03-17
8848296 Zoom lens, imaging device, and portable digital device Hiromichi Atsuumi 2014-09-30
8705180 Zoom lens, imaging device and information device Hiromichi Atsuumi 2014-04-22
8649108 Zoom lens, camera device, and data terminal device Hiromichi Atsuumi 2014-02-11
8638503 Zoom lens and information device incorporating the same Hiromichi Atsuumi 2014-01-28
8264781 Zoom lens, information device, and imaging apparatus Hiromichi Atsuumi 2012-09-11
8179610 Zoom lens and information device Hiromichi Atsuumi 2012-05-15
8158020 Liquid crystal element, optical path deflecting element, and image displaying apparatus Hiroyuki Sugimoto, Toshiaki Tokita, Koh Fujimura, Yasuyuki Takiguchi, Yumi Matsuki +2 more 2012-04-17
8054559 Zoom lens, information device, and imaging apparatus Hiromichi Atsuumi 2011-11-08
7933074 Zoom lens unit and information device Hiromichi Atsuumi 2011-04-26
7929071 Electric field generating device comprising an electric field generating resistor and line electrodes, light deflecting device having the same, and image display apparatus having the same Yukiko Hirano, Toshiaki Tokita, Koh Fujimura, Yumi Matsuki, Toshimichi Hagiya +2 more 2011-04-19