Hiroshi Shiroiwa

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Kyoto-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Objective lens, optical head, optical disk device, and information...
- Patent number 8,797,834
- Issue date Aug 5, 2014
- Panasonic Corporation
- Fumitomo Yamasaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION...
- Publication number 20130064057
- Publication date Mar 14, 2013
- Fumitomo Yamasaki
- G02 - OPTICS
Information Patent Application
Semiconductor laser apparatus, optical pick-up and optical informat...
- Publication number 20070064574
- Publication date Mar 22, 2007
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Komma
- G11 - INFORMATION STORAGE
Information Patent Application
Diffraction grating body, optical pick-up, semiconductor laser appa...
- Publication number 20020097660
- Publication date Jul 25, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Komma
- G11 - INFORMATION STORAGE