Seiji Kajiyama

Person

Gifu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical pickup device and method of laying out the same
- Patent number 7,903,507
- Issue date Mar 8, 2011
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device capable of handling a plurality of laser ligh...
- Patent number 7,782,735
- Issue date Aug 24, 2010
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 7,609,606
- Issue date Oct 27, 2009
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 7,558,184
- Issue date Jul 7, 2009
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 7,525,897
- Issue date Apr 28, 2009
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 7,420,894
- Issue date Sep 2, 2008
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor laser apparatus and optical pickup apparatus
- Patent number 7,376,166
- Issue date May 20, 2008
- Sanyo Electric Co., LTD
- Masayuki Hata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and recording and/or reproducing device
- Patent number 7,209,415
- Issue date Apr 24, 2007
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
MAGNETO-OPTICAL DISK APPARATUS CAPABLE OF ACCURATE REPRODUCTION OF...
- Patent number 6,693,856
- Issue date Feb 17, 2004
- Sanyo Electric Co., Ltd.
- Masaaki Shidochi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup compatible with a plurality of types of optical disk...
- Patent number 6,574,182
- Issue date Jun 3, 2003
- Sanyo Electric Co., Ltd.
- Masato Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head for two different disk thicknesses with a light beam d...
- Patent number 6,552,990
- Issue date Apr 22, 2003
- Sanyo Electric Co., Ltd.
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disc capable of preventing illegal copy
- Patent number 6,438,097
- Issue date Aug 20, 2002
- Sanyo Electric Co., LTD
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk recording/reproduction apparatus for recording/reprodu...
- Patent number 6,321,028
- Issue date Nov 20, 2001
- Sanyo Electric Co., LTD
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disc capable of preventing illegal copy
- Patent number 6,262,967
- Issue date Jul 17, 2001
- Sanyo Electric Co., LTD
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for discriminating optical recording media of different t...
- Patent number 6,201,777
- Issue date Mar 13, 2001
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and wavelength selective diffraction grating
- Patent number 6,181,668
- Issue date Jan 30, 2001
- Sanyo Electric Co., LTD
- Seiji Kajiyama
- G02 - OPTICS
Information Patent Grant
Optical Disc cd recording/reproducing apparatus recording/reproduci...
- Patent number 6,167,019
- Issue date Dec 26, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pick-up device
- Patent number 6,160,783
- Issue date Dec 12, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording/reproducing apparatus recording/reproducing...
- Patent number 6,137,764
- Issue date Oct 24, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording/reproducing apparatus recording/reproducing...
- Patent number 6,122,242
- Issue date Sep 19, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disc capable of preventing illegal copy
- Patent number 6,108,296
- Issue date Aug 22, 2000
- Sanyo Electric Co., Ltd.
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording/reproducing apparatus recording/reproducing...
- Patent number 6,049,518
- Issue date Apr 11, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Superresolution optical pickup apparatus
- Patent number 6,025,866
- Issue date Feb 15, 2000
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Apparatus for discriminating optical recording media of different t...
- Patent number 5,917,791
- Issue date Jun 29, 1999
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device which can be adapted to plurality of types of...
- Patent number 5,870,371
- Issue date Feb 9, 1999
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc readout apparatus for different types of optical discs
- Patent number 5,856,965
- Issue date Jan 5, 1999
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording reproducing apparatus recording/reproducing...
- Patent number 5,787,061
- Issue date Jul 28, 1998
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk readout apparatus
- Patent number 5,777,970
- Issue date Jul 7, 1998
- Sanyo Electric Co., Ltd.
- Seiji Kajiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device which can be adapted to plurality of types of...
- Patent number 5,687,154
- Issue date Nov 11, 1997
- Sanyo Electric Co., Ltd.
- Yoichi Tsuchiya
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PICKUP APPARATUS
- Publication number 20090245072
- Publication date Oct 1, 2009
- SANYO ELECTRONIC CO., LTD.
- Kenji Asano
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device and method of laying out the same
- Publication number 20070147198
- Publication date Jun 28, 2007
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20070115767
- Publication date May 24, 2007
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor laser apparatus and optical pickup apparatus
- Publication number 20060251138
- Publication date Nov 9, 2006
- Masayuki Hata
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20060140078
- Publication date Jun 29, 2006
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20060126673
- Publication date Jun 15, 2006
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20060083147
- Publication date Apr 20, 2006
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20060077860
- Publication date Apr 13, 2006
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20050254391
- Publication date Nov 17, 2005
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device and recording and/or reproducing device
- Publication number 20040081058
- Publication date Apr 29, 2004
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical disk apparatus capable of accurate reproduction of...
- Publication number 20020034128
- Publication date Mar 21, 2002
- SANYO ELECTRIC CO., LTD.
- Masaaki Shidochi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISK RECORDING/REPRODUCTION APPARATUS FOR RECORDING/REPRODU...
- Publication number 20010048809
- Publication date Dec 6, 2001
- SEIJI KAJIYAMA
- G11 - INFORMATION STORAGE

Seiji Kajiyama

Person

Patents Grantslast 30 patents

Optical pickup device and method of laying out the same

Optical pickup device capable of handling a plurality of laser ligh...

Optical pickup device

Optical pickup device

Optical pickup device

Optical pickup device

Semiconductor laser apparatus and optical pickup apparatus

Optical pickup device and recording and/or reproducing device

MAGNETO-OPTICAL DISK APPARATUS CAPABLE OF ACCURATE REPRODUCTION OF...

Optical pickup compatible with a plurality of types of optical disk...

Optical head for two different disk thicknesses with a light beam d...

Optical recording disc capable of preventing illegal copy

Optical disk recording/reproduction apparatus for recording/reprodu...

Optical recording disc capable of preventing illegal copy

Apparatus for discriminating optical recording media of different t...

Optical pickup device and wavelength selective diffraction grating

Optical Disc cd recording/reproducing apparatus recording/reproduci...

Optical pick-up device

Optical disc recording/reproducing apparatus recording/reproducing...

Optical disc recording/reproducing apparatus recording/reproducing...

Optical recording disc capable of preventing illegal copy

Optical disc recording/reproducing apparatus recording/reproducing...

Superresolution optical pickup apparatus

Apparatus for discriminating optical recording media of different t...

Optical pickup device which can be adapted to plurality of types of...

Optical disc readout apparatus for different types of optical discs

Optical disc recording reproducing apparatus recording/reproducing...

Optical disk readout apparatus

Optical pickup device which can be adapted to plurality of types of...

Patents Applicationslast 30 patents

OPTICAL PICKUP APPARATUS

Optical pickup device and method of laying out the same

Optical pickup device

Semiconductor laser apparatus and optical pickup apparatus

Optical pickup device

Optical pickup device

Optical pickup device

Optical pickup device

Optical pickup device

Optical pickup device and recording and/or reproducing device

Magneto-optical disk apparatus capable of accurate reproduction of...

OPTICAL DISK RECORDING/REPRODUCTION APPARATUS FOR RECORDING/REPRODU...