Yoshiaki Minakawa

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Moriya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup system, optical head, optical disk apparatus, and ob...
- Patent number 7,755,998
- Issue date Jul 13, 2010
- Hitachi Maxell, Ltd.
- Yasuyuki Sugi
- G02 - OPTICS
Information Patent Grant
Imaging lens unit
- Patent number 7,619,836
- Issue date Nov 17, 2009
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Grant
Imaging lens unit
- Patent number 7,446,958
- Issue date Nov 4, 2008
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Grant
Wavelength multiplexer/demultiplexing device
- Patent number 7,389,050
- Issue date Jun 17, 2008
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Grant
Wavelength division multiplexer
- Patent number 7,079,322
- Issue date Jul 18, 2006
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Imaging lens unit and camera module
- Publication number 20090153983
- Publication date Jun 18, 2009
- Hitachi Maxell, Ltd.
- Masaki Nakanishi
- G02 - OPTICS
Information Patent Application
Imaging lens unit
- Publication number 20090040630
- Publication date Feb 12, 2009
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Application
Imaging lens unit
- Publication number 20070229982
- Publication date Oct 4, 2007
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Application
Optical pickup system, optical head, optical disk apparatus, antire...
- Publication number 20060018234
- Publication date Jan 26, 2006
- Hitachi Maxell, Ltd.
- Yasuyuki Sugi
- G02 - OPTICS
Information Patent Application
Optical pickup system, optical head, optical disk apparatus, and ob...
- Publication number 20060018237
- Publication date Jan 26, 2006
- Hitachi Maxell, Ltd.
- Yasuyuki Sugi
- G02 - OPTICS
Information Patent Application
Wavelength division multiplexer
- Publication number 20050094282
- Publication date May 5, 2005
- Hitachi Maxell, Ltd.
- Yoshiaki Minakawa
- G02 - OPTICS
Information Patent Application
Wavelength multiplexer/demultiplexing device
- Publication number 20050063423
- Publication date Mar 24, 2005
- Yoshiaki Minakawa
- G02 - OPTICS