Inventor
OGATA YASUJI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “OGATA YASUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OLYMPUS OPTICAL CO
21 patentsUS6069743AMay 30, 2000
Zoom lens system
OLYMPUS OPTICAL CO62 citations96
US6097547AAug 1, 2000
Front converter lens system using a diffractive surface
OLYMPUS OPTICAL CO22 citations92
US5982544ANov 9, 1999
Zoom lens system having a diffractive surface
OLYMPUS OPTICAL CO36 citations92
US5877850AMar 2, 1999
Distance measuring apparatus
OLYMPUS OPTICAL CO32 citations92
US5663836ASep 2, 1997
Compact zoom lens system comprising two lens units
OLYMPUS OPTICAL CO33 citations92
US6122080ASep 19, 2000
Finder equipped with an indicator
OLYMPUS OPTICAL CO16 citations84
US5069536ADec 3, 1991
Zoom lens system
OLYMPUS OPTICAL CO20 citations82
US4786153ANov 22, 1988
Large-aperture macro lens system
OLYMPUS OPTICAL CO20 citations82
US6034819AMar 7, 2000
Diffractive optical element both surfaces of which comprise diffractive surfaces
OLYMPUS OPTICAL CO14 citations74
US5949577ASep 7, 1999
Lens system including a diffractive optical element
OLYMPUS OPTICAL CO16 citations74
US5666233ASep 9, 1997
Two-unit zoom lens system having a high zoom ratio
OLYMPUS OPTICAL CO10 citations74
US5353160AOct 4, 1994
Three-unit compact zoom lens system
OLYMPUS OPTICAL CO8 citations74
US5339195AAug 16, 1994
Two unit zoom lens system
OLYMPUS OPTICAL CO15 citations74
US4836662AJun 6, 1989
Telephoto zoom lens system
OLYMPUS OPTICAL CO11 citations74
US4815829AMar 28, 1989
Telephoto zoom lens system
OLYMPUS OPTICAL CO7 citations74
US4789226ADec 6, 1988
Zoom lens system
OLYMPUS OPTICAL CO12 citations74
US5546236AAug 13, 1996
Wide-angle photographic lens system
OLYMPUS OPTICAL CO8 citations70
US5684638ANov 4, 1997
Two-unit zoom lens system having high zoom ratio
OLYMPUS OPTICAL CO5 citations63
US5640276AJun 17, 1997
Four-unit zoom lens system having a high zoom ratio
OLYMPUS OPTICAL CO2 citations63
US5459616AOct 17, 1995
Two-unit zoom lens system
OLYMPUS OPTICAL CO4 citations63
US4708443ANov 24, 1987
Zoom lens system
OLYMPUS OPTICAL CO3 citations63
OLYMPUS CORP
10 patentsUS7215481B2May 8, 2007
Taking lens, and imaging device incorporating the same
OLYMPUS CORP9 citations74
US10409032B2Sep 10, 2019
Converter lens device and photographing system including the same
OLYMPUS CORP4 citations73
US9904030B2Feb 27, 2018
Teleconverter, and imaging system comprising the same
OLYMPUS CORP2 citations73
US9885852B2Feb 6, 2018
Converter lens device and photographing system including the same
OLYMPUS CORP5 citations73
US9261682B2Feb 16, 2016
Zoom lens
OLYMPUS CORP3 citations72
US10107992B2Oct 23, 2018
Telephoto lens and image pickup apparatus using the same
OLYMPUS CORP2 citations70
US9563106B2Feb 7, 2017
Teleconverter mounted on a master lens apparatus to obtain a lens system having a focal length longer than that of the master lens apparatus, and imaging system comprising the same
OLYMPUS CORP0 citations52
US9507131B2Nov 29, 2016
Teleconverter and image pickup system using the same
OLYMPUS CORP1 citations52
US9507133B2Nov 29, 2016
Zoom lens
OLYMPUS CORP0 citations51
US9459433B2Oct 4, 2016
Zoom lens and zoom lens apparatus using the same
OLYMPUS CORP0 citations42
OLYMPUS IMAGING CORP
4 patentsUS8654448B2Feb 18, 2014
Inner focus lens system and image pickup apparatus using the same
OLYMPUS IMAGING CORP8 citations84
US9075291B2Jul 7, 2015
Teleconverter, and imaging system comprising the same
OLYMPUS IMAGING CORP4 citations73
US8767310B2Jul 1, 2014
Zoom lens, and imaging apparatus incorporating the same
OLYMPUS IMAGING CORP5 citations73
US8988783B2Mar 24, 2015
Zoom lens and image pickup apparatus equipped with same
OLYMPUS IMAGING CORP0 citations41