Yoshio Umeda

Person

Kobe, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Information recording/reproducing apparatus and method
- Patent number 6,496,323
- Issue date Dec 17, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yoshio Umeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus of forming a magnetic disk with a servo sector...
- Patent number 6,466,385
- Issue date Oct 15, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yoshio Umeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Automatic medium changing apparatus using an automatic regulator ac...
- Patent number 5,831,947
- Issue date Nov 3, 1998
- Matsushita Electric Industrial Co., Ltd.
- Yukinori Okazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Charging device and an image forming apparatus using a charging device
- Patent number 5,776,544
- Issue date Jul 7, 1998
- Matsushita Electric Industrial Co., Ltd.
- Teruyuki Naka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device and image forming apparatus containing the charging...
- Patent number 5,634,179
- Issue date May 27, 1997
- Matsushita Electric Industrial Co., Ltd.
- Yoshio Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device and an image forming apparatus using a charging device
- Patent number 5,548,380
- Issue date Aug 20, 1996
- Matsushita Electric Industrial Co., Ltd.
- Teruyuki Naka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yoshio Umeda

Person

Patents Grantslast 30 patents

Information recording/reproducing apparatus and method

Method and apparatus of forming a magnetic disk with a servo sector...

Automatic medium changing apparatus using an automatic regulator ac...

Charging device and an image forming apparatus using a charging device

Charging device and image forming apparatus containing the charging...

Charging device and an image forming apparatus using a charging device