Inventor
HARA MASATO
JP45 patents
⚠️ This page may combine multiple inventors who share the name “HARA MASATO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
32 patentsUS6148097ANov 14, 2000
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD47 citations96
US5847822ADec 8, 1998
Optical element inspecting apparatus
ASAHI OPTICAL CO LTD55 citations96
US5838431ANov 17, 1998
Laser marking device
ASAHI OPTICAL CO LTD82 citations96
US5828500AOct 27, 1998
Optical element inspecting apparatus
ASAHI OPTICAL CO LTD76 citations96
US5991102ANov 23, 1999
Beam protecting device
ASAHI OPTICAL CO LTD46 citations95
US6476909B1Nov 5, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD16 citations93
US5978148ANov 2, 1999
Beam projecting device
ASAHI OPTICAL CO LTD33 citations93
US5835207ANov 10, 1998
Optical member inspecting apparatus
ASAHI OPTICAL CO LTD31 citations93
US6304669B1Oct 16, 2001
Photogrammetric analytical measurement system
ASAHI OPTICAL CO LTD32 citations92
US4543477ASep 24, 1985
Safety device for detecting trouble in optical transmission fibers
ASAHI OPTICAL CO LTD85 citations92
US6804386B1Oct 12, 2004
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD11 citations82
US6697513B1Feb 24, 2004
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD9 citations82
US6349145B1Feb 19, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD8 citations82
US6636625B1Oct 21, 2003
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD5 citations74
US6535627B1Mar 18, 2003
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD3 citations74
US6477264B1Nov 5, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD2 citations74
US6430310B1Aug 6, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD2 citations74
US6314200B1Nov 6, 2001
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD4 citations74
US4678910AJul 7, 1987
Reference position-detecting device for photoelectric encoder
ASAHI OPTICAL CO LTD8 citations74
US4620092AOct 28, 1986
Elevation angle measuring device with apparatus for disabling the device when its inclination angle is offset from a predetermined inclination angle
ASAHI OPTICAL CO LTD8 citations74
US6208475B1Mar 27, 2001
Optical-member inspection apparatus and holder for inspection target member
ASAHI OPTICAL CO LTD7 citations72
US4633419ADec 30, 1986
Angle measuring device
ASAHI OPTICAL CO LTD9 citations72
US4883955ANov 28, 1989
Optical encoder with converging means
ASAHI OPTICAL CO LTD18 citations71
US4486080ADec 4, 1984
Device for detecting blinking of an eye under examination
ASAHI OPTICAL CO LTD13 citations71
US4626682ADec 2, 1986
Angle measuring device
ASAHI OPTICAL CO LTD8 citations69
US6788804B1Sep 7, 2004
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD0 citations63
US6434263B1Aug 13, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD1 citations63
US6427023B1Jul 30, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD1 citations63
US4700063AOct 13, 1987
Encoder output error detecting circuit
ASAHI OPTICAL CO LTD5 citations63
US4702008AOct 27, 1987
Zero setting device in surveying instrument
ASAHI OPTICAL CO LTD4 citations60
US4540253ASep 10, 1985
Method and device for measuring eye refraction errors
ASAHI OPTICAL CO LTD5 citations58
US6363165B1Mar 26, 2002
Optical member inspecting apparatus and method of inspection thereof
ASAHI OPTICAL CO LTD0 citations52
PENTAX CORP
6 patentsUS6628803B1Sep 30, 2003
Device for calculating positional data of standard points of photogrammetric target
PENTAX CORP23 citations92
US6717683B1Apr 6, 2004
Target for photogrammetric analytical measurement system
PENTAX CORP15 citations84
US6853441B2Feb 8, 2005
Projection aligner
PENTAX CORP9 citations72
US6807013B2Oct 19, 2004
Projection aligner
PENTAX CORP4 citations61
US6727979B2Apr 27, 2004
Projection aligner
PENTAX CORP6 citations61
US6839124B2Jan 4, 2005
Projection aligner
PENTAX CORP1 citations50