Hiromasa SATO

Person

Fukushima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Diffraction grating, aberration correction element and optical head...
- Patent number 8,437,238
- Issue date May 7, 2013
- Asahi Glass Company, Limited
- Koji Miyasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Diffraction grating, aberration correction element and optical head...
- Patent number 8,279,737
- Issue date Oct 2, 2012
- Asahi Glass Company, Limited
- Koji Miyasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Wavelength selecting wavelength plate and optical head device using it
- Patent number 8,040,781
- Issue date Oct 18, 2011
- Asahi Glass Company, Limited
- Yukihiro Tao
- G11 - INFORMATION STORAGE
Information Patent Grant
Wavelength-selective light-shielding element and optical head using...
- Patent number 8,040,782
- Issue date Oct 18, 2011
- Asahi Glass Company, Limited
- Hiromasa Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Wavelength-selective diffraction element and optical head device in...
- Patent number 7,755,834
- Issue date Jul 13, 2010
- Asahi Glass Company, Limited
- Atsushi Koyanagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarizing diffraction element and optical head device
- Patent number 7,738,346
- Issue date Jun 15, 2010
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE
Information Patent Grant
Liquid crystal lens element and optical head device
- Patent number 7,719,657
- Issue date May 18, 2010
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase correction element and optical head device
- Patent number 7,688,700
- Issue date Mar 30, 2010
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarized diffractive filter and layered polarized diffractive filter
- Patent number 7,623,291
- Issue date Nov 24, 2009
- Asahi Glass Company, Limited
- Hiromasa Sato
- G02 - OPTICS
Information Patent Grant
Phase plate and an optical data recording/reproducing device
- Patent number 7,564,504
- Issue date Jul 21, 2009
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE
Information Patent Grant
Polymerizable liquid crystal composition, optical anisotropic mater...
- Patent number 7,534,370
- Issue date May 19, 2009
- Asahi Glass Company, Limited
- Kara Yoshida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Diffraction element
- Patent number 7,430,076
- Issue date Sep 30, 2008
- Asahi Glass Company, Limited
- Hiromasa Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Liquid crystal lens element and optical head device
- Patent number 7,388,822
- Issue date Jun 17, 2008
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE
Information Patent Grant
Diffraction element and optical device
- Patent number 7,142,363
- Issue date Nov 28, 2006
- Asahi Glass Company, Limited
- Hiromasa Sato
- G01 - MEASURING TESTING
Information Patent Grant
Retarder and optical head device installing the same
- Patent number 6,917,576
- Issue date Jul 12, 2005
- Asahi Glass Company, Limited
- Takehiko Nishiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head device and a diffraction element suitable for the devi...
- Patent number 6,618,116
- Issue date Sep 9, 2003
- Asahi Glass Company, Limited
- Koichi Murata
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase shifter and optical head device mounted with the same
- Patent number 6,580,674
- Issue date Jun 17, 2003
- Asahi Glass Company, Limited
- Takehiko Nishiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head, method of manufacturing the same, and diffraction ele...
- Patent number 6,304,312
- Issue date Oct 16, 2001
- Asahi Glass Company Ltd.
- Yuzuru Tanabe
- G02 - OPTICS
Information Patent Grant
Optical head device including an optically anisotropic diffraction...
- Patent number 6,271,966
- Issue date Aug 7, 2001
- Asahi Glass Company Ltd.
- Yuzuru Tanabe
- G02 - OPTICS
Information Patent Grant
Liquid-crystal composition and polymeric liquid crystal obtained by...
- Patent number 6,180,028
- Issue date Jan 30, 2001
- Asahi Glass Company Ltd.
- Hiroki Hotaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Optical head device including an optically anisotropic diffraction...
- Patent number 6,118,586
- Issue date Sep 12, 2000
- Asahi Glass Company Ltd.
- Yuzuru Tanabe
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT, OPTICAL SYSTEM, AND IMAGING DEVICE
- Publication number 20210041656
- Publication date Feb 11, 2021
- AGC Inc.
- Koji MIYASAKA
- G02 - OPTICS
Information Patent Application
DIFFRACTION GRATING, ABERRATION CORRECTION ELEMENT AND OPTICAL HEAD...
- Publication number 20120287767
- Publication date Nov 15, 2012
- ASAHI GLASS COMPANY, LIMITED
- Koji MIYASAKA
- G02 - OPTICS
Information Patent Application
DIFFRACTION GRATING, ABERRATION CORRECTION ELEMENT AND OPTICAL HEAD...
- Publication number 20110141873
- Publication date Jun 16, 2011
- ASAHI GLASS COMPANY LIMITED
- Koji MIYASAKA
- G02 - OPTICS
Information Patent Application
PHASE CORRECTION ELEMENT AND OPTICAL HEAD DEVICE
- Publication number 20100020671
- Publication date Jan 28, 2010
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
WAVELENGTH SELECTING WAVELENGTH PLATE AND OPTICAL HEAD DEVICE USING IT
- Publication number 20090268585
- Publication date Oct 29, 2009
- Asahi Glass Company, Limited
- Yukihiro TAO
- G02 - OPTICS
Information Patent Application
WAVELENGTH-SELECTIVE LIGHT-SHIELDING ELEMENT AND OPTICAL HEAD USING...
- Publication number 20090154322
- Publication date Jun 18, 2009
- Asahi Glass Company, Limited
- Hiromasa Sato
- G02 - OPTICS
Information Patent Application
WAVELENGTH-SELECTIVE DIFFRACTION ELEMENT AND OPTICAL HEAD DEVICE IN...
- Publication number 20080316600
- Publication date Dec 25, 2008
- Asahi Glass Company, Limited
- Atsushi KOYANAGI
- G02 - OPTICS
Information Patent Application
DIFFRACTION ELEMENT
- Publication number 20080310024
- Publication date Dec 18, 2008
- ASAHI GLASS COMPANY LIMITED
- Hiromasa Sato
- G02 - OPTICS
Information Patent Application
POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, OPTICAL ANISOTROPIC MATER...
- Publication number 20080048149
- Publication date Feb 28, 2008
- ASAHI GLASS COMPANY, LIMITED
- Kara YOSHIDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Liquid crystal lens element and optical head device
- Publication number 20070146625
- Publication date Jun 28, 2007
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
POLARIZED DIFFRACTIVE FILTER AND LAYERED POLARIZED DIFFRACTIVE FILTER
- Publication number 20070121210
- Publication date May 31, 2007
- Asahi Glass Co., LTD.
- Hiromasa SATO
- G02 - OPTICS
Information Patent Application
Liquid crystal lens element and optical head device
- Publication number 20060280100
- Publication date Dec 14, 2006
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
Polarizing diffraction element and optical head device
- Publication number 20060239171
- Publication date Oct 26, 2006
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
Diffraction element and optical head device
- Publication number 20060033913
- Publication date Feb 16, 2006
- ASAHI GLASS COMPANY, LIMITED
- Hiromasa Sato
- G02 - OPTICS
Information Patent Application
Diffraction element and optical device
- Publication number 20060001972
- Publication date Jan 5, 2006
- ASAHI GLASS COMPANY, LIMITED
- Hiromasa Sato
- G02 - OPTICS
Information Patent Application
Phase correction element and optical head device
- Publication number 20050226122
- Publication date Oct 13, 2005
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
Phase plate and an optical data recording/reproducing device
- Publication number 20050213212
- Publication date Sep 29, 2005
- ASAHI GLASS COMPANY, LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
Diffraction element
- Publication number 20040169929
- Publication date Sep 2, 2004
- ASAHI GLASS COMPANY LIMITED
- Hiromasa Sato
- G02 - OPTICS
Information Patent Application
Retarder and optical head device installing the same
- Publication number 20030174631
- Publication date Sep 18, 2003
- ASAHI GLASS COMPANY, LIMITED
- Takehiko Nishiyama
- G02 - OPTICS
Information Patent Application
Retarder and optical head device installing the same
- Publication number 20030123371
- Publication date Jul 3, 2003
- ASAHI GLASS COMPANY, LIMITED
- Takehiko Nishiyama
- G02 - OPTICS
Information Patent Application
Optical head, method of manufacturing the same and diffraction elem...
- Publication number 20010030732
- Publication date Oct 18, 2001
- ASAHI GLASS COMPANY, LTD.
- Yuzuru Tanabe
- G02 - OPTICS

Hiromasa SATO

Person

Patents Grantslast 30 patents

Diffraction grating, aberration correction element and optical head...

Diffraction grating, aberration correction element and optical head...

Wavelength selecting wavelength plate and optical head device using it

Wavelength-selective light-shielding element and optical head using...

Wavelength-selective diffraction element and optical head device in...

Polarizing diffraction element and optical head device

Liquid crystal lens element and optical head device

Phase correction element and optical head device

Polarized diffractive filter and layered polarized diffractive filter

Phase plate and an optical data recording/reproducing device

Polymerizable liquid crystal composition, optical anisotropic mater...

Diffraction element

Liquid crystal lens element and optical head device

Diffraction element and optical device

Retarder and optical head device installing the same

Optical head device and a diffraction element suitable for the devi...

Phase shifter and optical head device mounted with the same

Optical head, method of manufacturing the same, and diffraction ele...

Optical head device including an optically anisotropic diffraction...

Liquid-crystal composition and polymeric liquid crystal obtained by...

Optical head device including an optically anisotropic diffraction...

Patents Applicationslast 30 patents

OPTICAL ELEMENT, OPTICAL SYSTEM, AND IMAGING DEVICE

DIFFRACTION GRATING, ABERRATION CORRECTION ELEMENT AND OPTICAL HEAD...

DIFFRACTION GRATING, ABERRATION CORRECTION ELEMENT AND OPTICAL HEAD...

PHASE CORRECTION ELEMENT AND OPTICAL HEAD DEVICE

WAVELENGTH SELECTING WAVELENGTH PLATE AND OPTICAL HEAD DEVICE USING IT

WAVELENGTH-SELECTIVE LIGHT-SHIELDING ELEMENT AND OPTICAL HEAD USING...

WAVELENGTH-SELECTIVE DIFFRACTION ELEMENT AND OPTICAL HEAD DEVICE IN...

DIFFRACTION ELEMENT

POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, OPTICAL ANISOTROPIC MATER...

Liquid crystal lens element and optical head device

POLARIZED DIFFRACTIVE FILTER AND LAYERED POLARIZED DIFFRACTIVE FILTER

Liquid crystal lens element and optical head device

Polarizing diffraction element and optical head device

Diffraction element and optical head device

Diffraction element and optical device

Phase correction element and optical head device

Phase plate and an optical data recording/reproducing device

Diffraction element

Retarder and optical head device installing the same

Retarder and optical head device installing the same

Optical head, method of manufacturing the same and diffraction elem...