Inventor
TAKAMOTO KATSUHIRO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “TAKAMOTO KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINOLTA CO LTD
14 patentsUS5716118AFeb 10, 1998
Imaging optical system
MINOLTA CO LTD176 citations99
US6454417B1Sep 24, 2002
Projection optical system comprising an optical function surface for reflecting or transmitting light from a spatial light modulator
MINOLTA CO LTD61 citations96
US5993010ANov 30, 1999
Two-dimensional illumination optical system and liquid crystal projector using same
MINOLTA CO LTD72 citations96
US6583940B2Jun 24, 2003
Projection system
MINOLTA CO LTD28 citations92
US6382799B1May 7, 2002
Projection optical apparatus
MINOLTA CO LTD51 citations92
US6275343B1Aug 14, 2001
Projection optical system
MINOLTA CO LTD40 citations92
US5947576ASep 7, 1999
Oblique projection optical apparatus
MINOLTA CO LTD21 citations92
US5709445AJan 20, 1998
Oblique projection optical system
MINOLTA CO LTD21 citations92
US6685322B2Feb 3, 2004
Optical system and projection-type image display device
MINOLTA CO LTD28 citations88
US6558007B2May 6, 2003
Illumination optical system and image projection apparatus
MINOLTA CO LTD15 citations83
US6014267AJan 11, 2000
Variable magnification optical system
MINOLTA CO LTD17 citations83
US6028715AFeb 22, 2000
Variable magnification optical system
MINOLTA CO LTD19 citations81
US5914820AJun 22, 1999
Zoom lens system
MINOLTA CO LTD14 citations73
US5683161ANov 4, 1997
Projecting optical device
MINOLTA CO LTD3 citations63