P

Inventor

NOGUCHI MASATO

JP71 patents
⚠️ This page may combine multiple inventors who share the name “NOGUCHI MASATO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ASAHI OPTICAL CO LTD

32 patents
US5629799AMay 13, 1997

Chromatic aberration correcting element and its application

ASAHI OPTICAL CO LTD79 citations97
US5257092AOct 26, 1993

Apparatus for measuring polarization and birefringence

ASAHI OPTICAL CO LTD57 citations96
US6234639B1May 22, 2001

Polarization converter and lighting device for LCD panel

ASAHI OPTICAL CO LTD25 citations93
US6104689AAug 15, 2000

Sensor system for optical disc drive

ASAHI OPTICAL CO LTD30 citations93
US5914822AJun 22, 1999

Chromatic aberration correcting element and its application

ASAHI OPTICAL CO LTD19 citations93
US5812223ASep 22, 1998

Color LCD projector with three color separating polarizing beam splitters

ASAHI OPTICAL CO LTD39 citations93
US5784202AJul 21, 1998

Apparatus for isometrically splitting beams

ASAHI OPTICAL CO LTD28 citations93
US5652745AJul 29, 1997

Optical system using polarized light with prevention of effect of birefringence

ASAHI OPTICAL CO LTD24 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
US5365504ANov 15, 1994

Optical disk apparatus, and construction of optical disk

ASAHI OPTICAL CO LTD26 citations93
US5278401AJan 11, 1994

Optical disc apparatus having five light receiving areas for detecting focus error and tracking error

ASAHI OPTICAL CO LTD29 citations93
US5243542ASep 7, 1993

Interferometer employing reference images

ASAHI OPTICAL CO LTD29 citations93
US5379105AJan 3, 1995

Roof surface measuring apparatus

ASAHI OPTICAL CO LTD38 citations92
US6178028B1Jan 23, 2001

Multibeam scanning exposure device

ASAHI OPTICAL CO LTD24 citations89
US6021000AFeb 1, 2000

Beam splitting diffractive optical element

ASAHI OPTICAL CO LTD14 citations82
US5402269AMar 28, 1995

Compound prism

ASAHI OPTICAL CO LTD16 citations82
US5223983AJun 29, 1993

Compound prism including interfaces with curvatures of the order of a laser wave length

ASAHI OPTICAL CO LTD15 citations82
US5193028AMar 9, 1993

Optical system for eliminating ghost image in wide wavelength band

ASAHI OPTICAL CO LTD19 citations82
US6388811B1May 14, 2002

Diffractive optical element including a diffractive grating pattern

ASAHI OPTICAL CO LTD5 citations74
US6212010B1Apr 3, 2001

Diffractive optical element including a diffractive grating pattern

ASAHI OPTICAL CO LTD7 citations74
US5777788AJul 7, 1998

Polarizer and method for using same

ASAHI OPTICAL CO LTD7 citations74
US5768036AJun 16, 1998

Beam receiving position adjusting device

ASAHI OPTICAL CO LTD8 citations74
US5752107AMay 12, 1998

Real image finder system for a camera

ASAHI OPTICAL CO LTD8 citations74
US5559639ASep 24, 1996

Beam receiving position adjusting device

ASAHI OPTICAL CO LTD14 citations74
US5537184AJul 16, 1996

Real image finder system for a camera

ASAHI OPTICAL CO LTD7 citations74
US5535179AJul 9, 1996

Magneto-optic disc apparatus with signal detector for detecting recorded signals based on split beams

ASAHI OPTICAL CO LTD8 citations74
US5448355ASep 5, 1995

System for measuring tilt of image plane of optical system using diffracted light

ASAHI OPTICAL CO LTD9 citations74
US5309423AMay 3, 1994

Magneto-optical reproducing device with optical system having two reflective elements and providing phase difference cancellation

ASAHI OPTICAL CO LTD15 citations74
US6304395B1Oct 16, 2001

Viewing optical instrument having roof prism and a roof prism

ASAHI OPTICAL CO LTD8 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

PENTAX CORP

4 patents

SONY CORP

3 patents

NISSAN MOTOR

2 patents

IBM

2 patents

NOGUCHI MASATO

2 patents

ADACHI HISATOSHI

1 patent

SANYO ELECTRIC CO

1 patent

MIZUTANI TOMOJI

1 patent

SANDISK TECHNOLOGIES LLC

1 patent

JAPAN TOBACCO INC

1 patent

Showing the top 50 of 71 patents by PatentIndex Score.