Inventor
OONO MASAHIRO
JP61 patents
⚠️ This page may combine multiple inventors who share the name “OONO MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
47 patentsUS5629799AMay 13, 1997
Chromatic aberration correcting element and its application
ASAHI OPTICAL CO LTD79 citations97
US5793735AAug 11, 1998
Wavefront aberration compensation in an optical data recording and reproducing apparatus with crystal liquid matrix
ASAHI OPTICAL CO LTD60 citations96
US5151752ASep 29, 1992
Method of measuring refractive indices of lens and sample liquid
ASAHI OPTICAL CO LTD66 citations96
US5991102ANov 23, 1999
Beam protecting device
ASAHI OPTICAL CO LTD46 citations95
US5553052ASep 3, 1996
Inclination of an objective lens in an optical information system
ASAHI OPTICAL CO LTD55 citations95
US5978148ANov 2, 1999
Beam projecting device
ASAHI OPTICAL CO LTD33 citations93
US5914822AJun 22, 1999
Chromatic aberration correcting element and its application
ASAHI OPTICAL CO LTD19 citations93
US5892219AApr 6, 1999
Light intensity controlling device
ASAHI OPTICAL CO LTD26 citations93
US5844707ADec 1, 1998
Scanning optical device
ASAHI OPTICAL CO LTD28 citations93
US5838001ANov 17, 1998
Scanning optical device and polygon mirror cover
ASAHI OPTICAL CO LTD44 citations93
US5477386ADec 19, 1995
Optical system for optical disc apparatus including anamorphic prisms
ASAHI OPTICAL CO LTD24 citations93
US5432606AJul 11, 1995
Interferometer for the measurement of surface profile which introduces a spatial carrier by tilting the reference mirror
ASAHI OPTICAL CO LTD31 citations93
US5341246AAug 23, 1994
Apparatus for adjusting an optical axis including plates on opposite sides of a beam shaping prism
ASAHI OPTICAL CO LTD29 citations93
US5278401AJan 11, 1994
Optical disc apparatus having five light receiving areas for detecting focus error and tracking error
ASAHI OPTICAL CO LTD29 citations93
US5237457AAug 17, 1993
Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism
ASAHI OPTICAL CO LTD27 citations93
US6055378AApr 25, 2000
Motor-driven auto-focusing system
ASAHI OPTICAL CO LTD27 citations92
US5825555AOct 20, 1998
Beam projecting apparatus
ASAHI OPTICAL CO LTD43 citations92
US5410532AApr 25, 1995
Method for a adjusting a beam splitter in an optical recording and reproducing apparatus
ASAHI OPTICAL CO LTD21 citations92
US5379105AJan 3, 1995
Roof surface measuring apparatus
ASAHI OPTICAL CO LTD38 citations92
US5317144AMay 31, 1994
Wave front aberration measuring apparatus having means for adjusting position of collimator lens
ASAHI OPTICAL CO LTD20 citations92
US5223970AJun 29, 1993
Optical axis adjusting mechanism and method for optical information recording and reproducing device, and jig therefor
ASAHI OPTICAL CO LTD35 citations92
US5157459AOct 20, 1992
Wave front aberration measuring apparatus
ASAHI OPTICAL CO LTD31 citations92
US5297114AMar 22, 1994
Magneto-optic recording/reproduction apparatus for minimizing variation in focusing error signals caused by variation in optical source wavelength
ASAHI OPTICAL CO LTD35 citations91
US6122112ASep 19, 2000
Lens position adjusting method for zoom lens
ASAHI OPTICAL CO LTD16 citations84
US5966550AOct 12, 1999
Automatic focusing apparatus in a camera
ASAHI OPTICAL CO LTD19 citations84
US5898805AApr 27, 1999
Light transmission device using optical fiber
ASAHI OPTICAL CO LTD17 citations84
US5812299ASep 22, 1998
Scanning optical device
ASAHI OPTICAL CO LTD17 citations84
US5760944AJun 2, 1998
Scanning optical device
ASAHI OPTICAL CO LTD18 citations84
US5402269AMar 28, 1995
Compound prism
ASAHI OPTICAL CO LTD16 citations82
US5343332AAug 30, 1994
Apparatus for adjusting optical axis including a beam shaping prism
ASAHI OPTICAL CO LTD17 citations82
US5223983AJun 29, 1993
Compound prism including interfaces with curvatures of the order of a laser wave length
ASAHI OPTICAL CO LTD15 citations82
US6064504AMay 16, 2000
Scanning optical device
ASAHI OPTICAL CO LTD11 citations74
US6040677AMar 21, 2000
Apparatus for driving stepper motor of camera
ASAHI OPTICAL CO LTD13 citations74
US6014523AJan 11, 2000
Time-sharing drive apparatus for motor of camera
ASAHI OPTICAL CO LTD10 citations74
US5886830AMar 23, 1999
Drive apparatus for zoom lens barrel
ASAHI OPTICAL CO LTD13 citations74
US5841566ANov 24, 1998
Multi-beam scanning optical device
ASAHI OPTICAL CO LTD13 citations74
US5812727ASep 22, 1998
Holder for optical fibers in a scanning optical device
ASAHI OPTICAL CO LTD8 citations74
US5768036AJun 16, 1998
Beam receiving position adjusting device
ASAHI OPTICAL CO LTD8 citations74
US5687007ANov 11, 1997
Image reading device including prevention of thermally induced component dislocation
ASAHI OPTICAL CO LTD8 citations74
US5559639ASep 24, 1996
Beam receiving position adjusting device
ASAHI OPTICAL CO LTD14 citations74
US5373437ADec 13, 1994
Device for and method of reducing cross talk in optical disk device
ASAHI OPTICAL CO LTD11 citations74
US5280464AJan 18, 1994
Optical disk apparatus having a focusing error correcting system
ASAHI OPTICAL CO LTD10 citations74
US5276497AJan 4, 1994
Measuring apparatus of mirror surface
ASAHI OPTICAL CO LTD13 citations74
US4886362ADec 12, 1989
Appratus for measuring the profile of an aspherical surface
ASAHI OPTICAL CO LTD14 citations74
US5557598ASep 17, 1996
Beam splitter inspection apparatus and method
ASAHI OPTICAL CO LTD4 citations73
US5434835AJul 18, 1995
Optical disk apparatus
ASAHI OPTICAL CO LTD7 citations73
US5768150AJun 16, 1998
Device and method for measuring a characteristic of an optical element
ASAHI OPTICAL CO LTD15 citations72
HOYA CORP
1 patentOTSUKA PHARMA CO LTD
1 patentPENTAX CORP
1 patentShowing the top 50 of 61 patents by PatentIndex Score.