Inventor
OHTSUKA MASARU
JP25 patents
⚠️ This page may combine multiple inventors who share the name “OHTSUKA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
13 patentsUS4887804ADec 19, 1989
Stage mechanism
CANON KK71 citations96
US4993696AFeb 19, 1991
Movable stage mechanism
CANON KK94 citations94
US6701633B2Mar 9, 2004
Apparatus and method for measuring a shape using multiple probes
CANON KK46 citations92
US6008901ADec 28, 1999
Shape measuring heterodyne interferometer with multiplexed photodetector aaray or inclined probe head
CANON KK33 citations92
US5991034ANov 23, 1999
Interferometer which varies a position to be detected based on inclination of surface to be measured
CANON KK31 citations92
US5485275AJan 16, 1996
Apparatus and method for measuring the error of an apparatus which measure a cylindrical shape using an interferometer
CANON KK33 citations92
US5106191AApr 21, 1992
Two-frequency distance and displacement measuring interferometer
CANON KK47 citations92
US5066131ANov 19, 1991
Stage mechanism
CANON KK25 citations92
US5034647AJul 23, 1991
Inchworm type driving mechanism
CANON KK41 citations92
US4850709AJul 25, 1989
Fabri-perot spectroscopy method and apparatus utilizing the same
CANON KK33 citations91
US7221460B2May 22, 2007
Optical system in exposure apparatus, and device manufacturing method
CANON KK19 citations84
US6972850B2Dec 6, 2005
Method and apparatus for measuring the shape of an optical surface using an interferometer
CANON KK14 citations83
US5170217ADec 8, 1992
Object measuring apparatus using lightwave interference
CANON KK19 citations78
KONISHIROKU PHOTO IND
6 patentsUS6354059B1Mar 12, 2002
Sheet finisher and image forming apparatus therewith
KONISHIROKU PHOTO IND129 citations97
US6575446B2Jun 10, 2003
Image forming apparatus having sheet finisher
KONISHIROKU PHOTO IND42 citations92
US6568668B1May 27, 2003
Sheet finisher and image forming apparatus therewith
KONISHIROKU PHOTO IND49 citations92
US6375181B1Apr 23, 2002
Finisher and image forming apparatus therewith
KONISHIROKU PHOTO IND21 citations92
US6375180B1Apr 23, 2002
Sheet finisher, image forming apparatus, and sheet conveyance apparatus
KONISHIROKU PHOTO IND44 citations92
US6047960AApr 11, 2000
Sheet tamping device for offsetting stacks of documents
KONISHIROKU PHOTO IND31 citations92
KONICA MINOLTA INC
2 patentsOHTSUKA MASARU
2 patentsUS8724124B2May 13, 2014
Image forming apparatus, image forming system, and computer-readable recording medium having program
OHTSUKA MASARU0 citations36
US8339655B2Dec 25, 2012
Image forming apparatus and image forming method for displaying a first image while a corresponding second image is being processed
OHTSUKA MASARU0 citations36