Naoyuki Takagi

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical pick-up capable of eliminating stray beams
- Patent number 7,876,648
- Issue date Jan 25, 2011
- Sanyo Electric Co., LTD
- Kazushi Mori
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 7,852,735
- Issue date Dec 14, 2010
- Sanyo Electric Co., LTD
- Kazushi Mori
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium including a calibration magnetic d...
- Patent number 6,847,590
- Issue date Jan 25, 2005
- Sanyo Electric Co., Ltd.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording with a magneto-optical recording...
- Patent number 6,697,304
- Issue date Feb 24, 2004
- Sanyo Electric Co., Ltd.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for determining power level of laser beam in m...
- Patent number 6,650,599
- Issue date Nov 18, 2003
- Sanyo Electric Co., Ltd.
- Naoyuki Takagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording with a magneto-optical recording...
- Patent number 6,501,707
- Issue date Dec 31, 2002
- Sanyo Electric Co., LTD
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium with intermediate layer having a c...
- Patent number 6,492,035
- Issue date Dec 10, 2002
- Sanyo Electric Co., Ltd.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical disk apparatus capable of accurately enlarging and...
- Patent number 6,483,783
- Issue date Nov 19, 2002
- Sanyo Electric Co., Ltd.
- Kenichiro Mitani
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device
- Patent number 6,480,444
- Issue date Nov 12, 2002
- Sanyo Electric Co., Ltd.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device
- Patent number 6,477,122
- Issue date Nov 5, 2002
- Sanyo Electric Co., Ltd.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device
- Patent number 6,466,527
- Issue date Oct 15, 2002
- Sanyo Electric Co., Ltd.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device
- Patent number 6,459,662
- Issue date Oct 1, 2002
- Sanyo Electric Co., Ltd.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for reproducing information from a magneto opt...
- Patent number 6,418,088
- Issue date Jul 9, 2002
- Sanyo Electric Co., LTD
- Naoyuki Takagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Reproducing method for magneto-optic recording medium, and magneto-...
- Patent number 6,388,955
- Issue date May 14, 2002
- Sanyo Electric Co., LTD
- Naoyuki Takagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device having compatibility with tracking system, an...
- Patent number 6,385,158
- Issue date May 7, 2002
- Sanyo Electric Co., LTD
- Naoyuki Takagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device
- Patent number 6,370,093
- Issue date Apr 9, 2002
- Sanyo Electric Co., Ltd.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and recording/reproducing apparatu...
- Patent number 6,301,199
- Issue date Oct 9, 2001
- Sanyo Electric Co., Ltd.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetooptical disk unit capable of recording or reproducing signal...
- Patent number 6,295,253
- Issue date Sep 25, 2001
- Sanyo Electric Co., Ltd.
- Kenichiro Mitani
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of counting tracks on disk and track counter circuit therefor
- Patent number 5,440,535
- Issue date Aug 8, 1995
- Sanyo Electric Co., Ltd.
- Naoyuki Takagi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20080137513
- Publication date Jun 12, 2008
- SANYO ELECTRIC CO., LTD.
- Kazushi Mori
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20080123492
- Publication date May 29, 2008
- SANYO ELECTRIC CO., LTD.
- Kazushi Mori
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20080019254
- Publication date Jan 24, 2008
- SANYO ELECTRIC CO., LTD.
- Kazushi Mori
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical disk device capable of performing magnetic domain e...
- Publication number 20030179657
- Publication date Sep 25, 2003
- Hitoshi Noguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical disk apparatus capable of reproducing while enlargi...
- Publication number 20030142592
- Publication date Jul 31, 2003
- Kenichiro Mitani
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for recording with a magneto-optical recording...
- Publication number 20030021192
- Publication date Jan 30, 2003
- Sanyo Electric Co., Ltd.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20030012093
- Publication date Jan 16, 2003
- SANYO ELECTRIC CO., LTD.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20020122361
- Publication date Sep 5, 2002
- SANYO ELECTRIC CO., LTD.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20020122360
- Publication date Sep 5, 2002
- SANYO ELECTRIC CO., LTD.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20020118613
- Publication date Aug 29, 2002
- SANYO ELECTRIC CO., LTD.
- Koichi Tada
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording medium reproducing method and magneto-opt...
- Publication number 20020027835
- Publication date Mar 7, 2002
- SANYO ELECTRIC COMPANY, LTD
- Naoyuki Takagi
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording medium and recording/reproducing apparatu...
- Publication number 20010050885
- Publication date Dec 13, 2001
- SANYO ELECTRIC CO., LTD.
- Atsushi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head capable of correctly reproducing signal by domain enl...
- Publication number 20010024342
- Publication date Sep 27, 2001
- SANYO ELECTRIC CO., LTD.
- Kenichiro Mitani
- G11 - INFORMATION STORAGE

Naoyuki Takagi

Person

Patents Grantslast 30 patents

Optical pick-up capable of eliminating stray beams

Optical pickup device

Magneto-optical recording medium including a calibration magnetic d...

Method and apparatus for recording with a magneto-optical recording...

Method and apparatus for determining power level of laser beam in m...

Method and apparatus for recording with a magneto-optical recording...

Magneto-optical recording medium with intermediate layer having a c...

Magneto-optical disk apparatus capable of accurately enlarging and...

Optical disk device

Optical disk device

Optical disk device

Optical disk device

Apparatus and method for reproducing information from a magneto opt...

Reproducing method for magneto-optic recording medium, and magneto-...

Optical pickup device having compatibility with tracking system, an...

Optical disc device

Magneto-optical recording medium and recording/reproducing apparatu...

Magnetooptical disk unit capable of recording or reproducing signal...

Method of counting tracks on disk and track counter circuit therefor

Patents Applicationslast 30 patents

OPTICAL PICKUP DEVICE

OPTICAL PICKUP DEVICE

OPTICAL PICKUP DEVICE

Magneto-optical disk device capable of performing magnetic domain e...

Magneto-optical disk apparatus capable of reproducing while enlargi...

Method and apparatus for recording with a magneto-optical recording...

Optical disk device

Optical disk device

Optical disk device

Optical disk device

Magneto-optical recording medium reproducing method and magneto-opt...

Magneto-optical recording medium and recording/reproducing apparatu...

Magnetic head capable of correctly reproducing signal by domain enl...