P

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 patents
US5629799AMay 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 patent

OTSUKA PHARMA CO LTD

1 patent

PENTAX CORP

1 patent

Showing the top 50 of 61 patents by PatentIndex Score.