Kiyoshi Toyota

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composite optical element and projection optical device
- Patent number 8,226,245
- Issue date Jul 24, 2012
- Sony Corporation
- Mitsunori Ueda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Objective lens, optical pickup apparatus using the same, optical re...
- Patent number 8,125,876
- Issue date Feb 28, 2012
- Sony Corporation
- Motoo Aiba
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disk device
- Patent number 7,821,905
- Issue date Oct 26, 2010
- Sony Corporation
- Masahiro Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus and optical disc apparatus
- Patent number 7,616,548
- Issue date Nov 10, 2009
- Sony Corporation
- Masahiro Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device, optical disk drive, optical device and compo...
- Patent number 7,345,982
- Issue date Mar 18, 2008
- Sony Corporation
- Norio Fukasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and recording and/or reproducing apparatus employing same
- Patent number 7,248,544
- Issue date Jul 24, 2007
- Sony Corporation
- Masahiro Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Encrypted mail transmission system
- Patent number 7,152,159
- Issue date Dec 19, 2006
- Panasonic Communications Co., Ltd.
- Kiyoshi Toyota
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical pickup device and optical disk device and optical device an...
- Patent number 7,064,900
- Issue date Jun 20, 2006
- Sony Corporation
- Norio Fukasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Integrated optical component, optical pickup, and optical disc device
- Patent number 6,529,454
- Issue date Mar 4, 2003
- Sony Corporation
- Yoshito Asoma
- G11 - INFORMATION STORAGE
Information Patent Grant
Prism has a plurality of reflective regions each with a predetermin...
- Patent number 5,742,577
- Issue date Apr 21, 1998
- Sony Corporation
- Hideyoshi Horimai
- G02 - OPTICS
Information Patent Grant
Optical pickup and optical recording medium reproducing apparatus h...
- Patent number 5,732,060
- Issue date Mar 24, 1998
- Sony Corporation
- Kiyoshi Toyota
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase changing apparatus and optical pickup apparatus for magneto-o...
- Patent number 5,577,018
- Issue date Nov 19, 1996
- Sony Corporation
- Hideyoshi Horimai
- G02 - OPTICS
Information Patent Grant
Prism has a plurality of reflective regions each with a predetermin...
- Patent number 5,563,869
- Issue date Oct 8, 1996
- Sony Corporation
- Hideyoshi Horimai
- G02 - OPTICS
Information Patent Grant
Head position control device
- Patent number 5,448,535
- Issue date Sep 5, 1995
- Sony Corporation
- Goro Fujita
- G11 - INFORMATION STORAGE
Information Patent Grant
Reader for optical type record card
- Patent number 4,777,356
- Issue date Oct 11, 1988
- Sony Corporation
- Kiyoshi Toyota
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
OBJECTIVE LENS, OPTICAL PICKUP APPARATUS USING THE SAME, OPTICAL RE...
- Publication number 20100103801
- Publication date Apr 29, 2010
- SONY CORPORATION
- Motoo Aiba
- G11 - INFORMATION STORAGE
Information Patent Application
Composite optical element and projection optical device
- Publication number 20100007860
- Publication date Jan 14, 2010
- Mitsunori Ueda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE
- Publication number 20080198465
- Publication date Aug 21, 2008
- SONY CORPORATION
- Masahiro SAITO
- G02 - OPTICS
Information Patent Application
Optical pickup apparatus and optical disc apparatus
- Publication number 20050281171
- Publication date Dec 22, 2005
- SONY CORPORATION
- Masahiro Saito
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device, optical disk drive, optical device and compo...
- Publication number 20050162995
- Publication date Jul 28, 2005
- Norio Fukasawa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device and optical disk device and optical device an...
- Publication number 20050088951
- Publication date Apr 28, 2005
- Norio Fukasawa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical head and recording and/or reproducing apparatus employing same
- Publication number 20050025002
- Publication date Feb 3, 2005
- Masahiro Saito
- G11 - INFORMATION STORAGE
Information Patent Application
Encrypted mail transmission system
- Publication number 20020124167
- Publication date Sep 5, 2002
- MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC.
- Kiyoshi Toyota
- G06 - COMPUTING CALCULATING COUNTING

Kiyoshi Toyota

Person

Patents Grantslast 30 patents

Composite optical element and projection optical device

Objective lens, optical pickup apparatus using the same, optical re...

Optical pickup device and optical disk device

Optical pickup apparatus and optical disc apparatus

Optical pickup device, optical disk drive, optical device and compo...

Optical head and recording and/or reproducing apparatus employing same

Encrypted mail transmission system

Optical pickup device and optical disk device and optical device an...

Integrated optical component, optical pickup, and optical disc device

Prism has a plurality of reflective regions each with a predetermin...

Optical pickup and optical recording medium reproducing apparatus h...

Phase changing apparatus and optical pickup apparatus for magneto-o...

Prism has a plurality of reflective regions each with a predetermin...

Head position control device

Reader for optical type record card

Patents Applicationslast 30 patents

OBJECTIVE LENS, OPTICAL PICKUP APPARATUS USING THE SAME, OPTICAL RE...

Composite optical element and projection optical device

OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE

Optical pickup apparatus and optical disc apparatus

Optical pickup device, optical disk drive, optical device and compo...

Optical pickup device and optical disk device and optical device an...

Optical head and recording and/or reproducing apparatus employing same

Encrypted mail transmission system