Seiji Ono

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical pickup having thermal expansion compensation
- Patent number 8,087,038
- Issue date Dec 27, 2011
- Hitachi Media Electronics Co., Ltd.
- Yasushi Kinoshita
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element feeding device and optical pickup unit using the same
- Patent number 7,995,450
- Issue date Aug 9, 2011
- Hitachi Media Electronics Co., Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element feeding device driving method and optical disk appa...
- Patent number 7,675,832
- Issue date Mar 9, 2010
- Hitachi Media Electronics Co., Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette
- Patent number 6,224,007
- Issue date May 1, 2001
- Hitachi Maxell, Ltd.
- Nobuyuki Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette having a surface recess for positioning accuracy in l...
- Patent number 5,927,632
- Issue date Jul 27, 1999
- Hitachi Maxell, Ltd.
- Nobuyuki Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape guide structure of rotary head drum in recording/reproduction...
- Patent number 5,734,537
- Issue date Mar 31, 1998
- Hitachi, Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Cassette detecting and discriminating arrangement in a cassette tra...
- Patent number 5,706,146
- Issue date Jan 6, 1998
- Hitachi Maxell, Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette
- Patent number 5,702,062
- Issue date Dec 30, 1997
- Hitachi Maxell, Ltd.
- Nobuyuki Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing system
- Patent number 5,617,391
- Issue date Apr 1, 1997
- Hitachi, Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary drum device
- Patent number 5,243,483
- Issue date Sep 7, 1993
- Hitachi, Ltd.
- Hiroaki Ono
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PICKUP
- Publication number 20080189726
- Publication date Aug 7, 2008
- Yasushi Kinoshita
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL ELEMENT FEEDING DEVICE AND OPTICAL PICKUP UNIT USING THE SAME
- Publication number 20070226759
- Publication date Sep 27, 2007
- Seiji Ono
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT FEEDING DEVICE DRIVING METHOD AND OPTICAL DISK APPA...
- Publication number 20070206460
- Publication date Sep 6, 2007
- Seiji Ono
- G11 - INFORMATION STORAGE

Person

Patents Grantslast 30 patents

Optical pickup having thermal expansion compensation

Optical element feeding device and optical pickup unit using the same

Optical element feeding device driving method and optical disk appa...

Tape cassette

Tape cassette having a surface recess for positioning accuracy in l...

Tape guide structure of rotary head drum in recording/reproduction...

Cassette detecting and discriminating arrangement in a cassette tra...

Tape cassette

Optical recording and reproducing system

Rotary drum device

Patents Applicationslast 30 patents

OPTICAL PICKUP

OPTICAL ELEMENT FEEDING DEVICE AND OPTICAL PICKUP UNIT USING THE SAME

OPTICAL ELEMENT FEEDING DEVICE DRIVING METHOD AND OPTICAL DISK APPA...