Yoshikazu Mitsui

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Ibaraki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pickup lens with phase compensator and optical pickup apparatus usi...
- Patent number 7,855,940
- Issue date Dec 21, 2010
- Hitachi Maxell, Ltd.
- Koichiro Wakabayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Pickup lens with phase compensator and optical pickup apparatus usi...
- Patent number 7,586,815
- Issue date Sep 8, 2009
- Hitachi Maxell, Ltd.
- Koichiro Wakabayashi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
PICKUP LENS WITH PHASE COMPENSATOR AND OPTICAL PICKUP APPARATUS USI...
- Publication number 20090285080
- Publication date Nov 19, 2009
- Hitachi Maxell, Ltd.
- Koichiro Wakabayashi
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens optical system and light beam splitting element
- Publication number 20080181090
- Publication date Jul 31, 2008
- Hitachi Maxell, Ltd.
- Mitsuhiro Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens optical system
- Publication number 20080106997
- Publication date May 8, 2008
- Hitachi Maxell, Ltd.
- Tomonori Kanai
- G02 - OPTICS
Information Patent Application
Objective lens and optical pickup system
- Publication number 20080019256
- Publication date Jan 24, 2008
- Hitachi Maxell, Ltd.
- Mitsuhiro Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium, information recording and reproducing...
- Publication number 20060098564
- Publication date May 11, 2006
- Hitachi Maxell, Ltd.
- Toshinori Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Pickup lens with phase compensator and optical pickup apparatus usi...
- Publication number 20060083122
- Publication date Apr 20, 2006
- Hitachi Maxell, Ltd.
- Koichiro Wakabayashi
- G11 - INFORMATION STORAGE