Hirohisa Koga

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic head device and linear tape drive including a multi-elemen...
- Patent number 7,359,160
- Issue date Apr 15, 2008
- Imation Corp.
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head device and linear tape drive including a twin bimodal...
- Patent number 7,339,768
- Issue date Mar 4, 2008
- Imation Corp.
- Yoshihiko Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for winding magnetic tape of tape cassette in good order
- Patent number 5,645,241
- Issue date Jul 8, 1997
- Sony Corporation
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape guide with lubricant flow preventing means in a signal recordi...
- Patent number 5,561,572
- Issue date Oct 1, 1996
- Sony Corporation
- Hiroshi Katsumata
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head device
- Patent number 5,295,032
- Issue date Mar 15, 1994
- Sony Corporation
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for digitally recording and reproducing video and audio s...
- Patent number 5,181,146
- Issue date Jan 19, 1993
- Sony Corporation
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Drum unit with curved control signal head surface
- Patent number 5,140,483
- Issue date Aug 18, 1992
- Sony Corporation
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary transducer head assembly
- Patent number 4,441,128
- Issue date Apr 3, 1984
- Sony Corporation
- Takeo Ohba
- G11 - INFORMATION STORAGE
Information Patent Grant
Deflectable transducer mounting assembly
- Patent number 4,438,469
- Issue date Mar 20, 1984
- Sony Corporation
- Takeo Ohba
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic recording medium
- Publication number 20060141294
- Publication date Jun 29, 2006
- Sony Corporation
- Yasuhiro Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head device and linear tape drive
- Publication number 20050201017
- Publication date Sep 15, 2005
- Hirohisa Koga
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head device and linear tape drive
- Publication number 20050185344
- Publication date Aug 25, 2005
- Yoshihiko Ito
- G11 - INFORMATION STORAGE

Hirohisa Koga

Person

Patents Grantslast 30 patents

Magnetic head device and linear tape drive including a multi-elemen...

Magnetic head device and linear tape drive including a twin bimodal...

Device for winding magnetic tape of tape cassette in good order

Tape guide with lubricant flow preventing means in a signal recordi...

Rotary magnetic head device

Apparatus for digitally recording and reproducing video and audio s...

Drum unit with curved control signal head surface

Rotary transducer head assembly

Deflectable transducer mounting assembly

Patents Applicationslast 30 patents

Magnetic recording medium

Magnetic head device and linear tape drive

Magnetic head device and linear tape drive