Masahiko Kawamura

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lens barrel and imaging apparatus
- Patent number 9,835,820
- Issue date Dec 5, 2017
- Ricoh Imaging Company, Ltd.
- Masahiko Kawamura
- G02 - OPTICS
Information Patent Grant
Lens barrel
- Patent number 9,715,082
- Issue date Jul 25, 2017
- Ricoh Imaging Company, Ltd.
- Yuji Kogure
- G02 - OPTICS
Information Patent Grant
Disc player having means for preventing disc magazine from being in...
- Patent number 5,014,258
- Issue date May 7, 1991
- Pioneer Electronic Corp.
- Kaoru Takemasa
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-disc player
- Patent number 4,841,499
- Issue date Jun 20, 1989
- Pioneer Electronic Corporation
- Akira Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape casette loading and ejecting mechanism
- Patent number 4,739,424
- Issue date Apr 19, 1988
- Pioneer Electronic Corporation
- Fumiya Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head driving mechanism for tape player
- Patent number 4,710,835
- Issue date Dec 1, 1987
- Pioneer Electronic Corporation
- Fumiya Yamada
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
LENS BARREL AND IMAGING APPARATUS
- Publication number 20160054538
- Publication date Feb 25, 2016
- RICOH IMAGING COMPANY, LTD.
- Masahiko KAWAMURA
- G02 - OPTICS
Information Patent Application
LENS BARREL
- Publication number 20160054540
- Publication date Feb 25, 2016
- RICOH IMAGING COMPANY, LTD.
- Yuji KOGURE
- G02 - OPTICS