Atsuo Osawa

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Display operation method to change the number of images to be displ...
- Patent number 6,396,506
- Issue date May 28, 2002
- Hitachi, Ltd.
- Takeshi Hoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Projection lens and image display device
- Patent number 6,130,786
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Atsuo Osawa
- G02 - OPTICS
Information Patent Grant
Projection lens and image display device
- Patent number 5,933,280
- Issue date Aug 3, 1999
- Hitachi, Ltd.
- Atsuo Osawa
- G02 - OPTICS
Information Patent Grant
Multi-display apparatus
- Patent number 5,926,153
- Issue date Jul 20, 1999
- Hitachi, Ltd.
- Tetsu Ohishi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Plasma display panel with optical filters
- Patent number 5,892,492
- Issue date Apr 6, 1999
- Hitachi, Ltd.
- Atsuo Osawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projecting lens and image display device
- Patent number 5,659,424
- Issue date Aug 19, 1997
- Hitachi, Ltd.
- Atsuo Osawa
- G02 - OPTICS
Information Patent Grant
Rear projection type image display apparatus and transmission type...
- Patent number 5,590,943
- Issue date Jan 7, 1997
- Hitachi, Ltd.
- Takahiko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear-projection screen and a rear projection image display employin...
- Patent number 5,513,037
- Issue date Apr 30, 1996
- Hitachi, Ltd.
- Takahiko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear-projection type image display apparatus and rear-projection ty...
- Patent number 5,485,308
- Issue date Jan 16, 1996
- Hitachi, Ltd.
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear-projection screen and a rear projection image display employin...
- Patent number 5,400,114
- Issue date Mar 21, 1995
- Hitachi, Ltd.
- Takahiko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic recording/reproducing apparatus for recording onto or repr...
- Patent number RE33784
- Issue date Dec 31, 1991
- Hitachi, Ltd.
- Atsuo Osawa
- 360 - Dynamic magnetic information storage or retrieval
Information Patent Grant
Magnetic tape loading mechanism and method
- Patent number 4,899,235
- Issue date Feb 6, 1990
- Hitachi Video Engineering, Inc.
- Kiyoshi Kano
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape guide moving mechanism for magnetic record reproducing apparatus
- Patent number 4,862,300
- Issue date Aug 29, 1989
- Hitachi, Ltd.
- Nobuyuki Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Locking device for a cover of magnetic tape cartridge
- Patent number 4,780,783
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Atsuo Osawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording/reproducing apparatus for recording onto or repr...
- Patent number 4,748,521
- Issue date May 31, 1988
- Hitachi, Ltd.
- Atsuo Osawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head assembly
- Patent number 4,725,910
- Issue date Feb 16, 1988
- Hitachi, Ltd.
- Nobuyuki Kaku
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Display Device
- Publication number 20070216670
- Publication date Sep 20, 2007
- Yasuharu Yatsu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Atsuo Osawa

Person

Patents Grantslast 30 patents

Display operation method to change the number of images to be displ...

Projection lens and image display device

Projection lens and image display device

Multi-display apparatus

Plasma display panel with optical filters

Projecting lens and image display device

Rear projection type image display apparatus and transmission type...

Rear-projection screen and a rear projection image display employin...

Rear-projection type image display apparatus and rear-projection ty...

Rear-projection screen and a rear projection image display employin...

Magnetic recording/reproducing apparatus for recording onto or repr...

Magnetic tape loading mechanism and method

Tape guide moving mechanism for magnetic record reproducing apparatus

Locking device for a cover of magnetic tape cartridge

Magnetic recording/reproducing apparatus for recording onto or repr...

Rotary magnetic head assembly

Patents Applicationslast 30 patents

Display Device