Yoshio Sakagawa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Developing method
- Patent number 6,136,487
- Issue date Oct 24, 2000
- Minolta Co., Ltd.
- Tamotsu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having an AC current with two frequencies and met...
- Patent number 5,999,782
- Issue date Dec 7, 1999
- Minolta Co., Ltd.
- Yoshiyuki Iguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device which accomplishes development using the action o...
- Patent number 5,884,131
- Issue date Mar 16, 1999
- Minolta Co., Ltd.
- Tamotsu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having stop period during which no AC electric...
- Patent number 5,860,040
- Issue date Jan 12, 1999
- Minolta Co., Ltd.
- Tamotsu Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus comprising a stapler relatively movable in...
- Patent number 5,724,641
- Issue date Mar 3, 1998
- Minolta Co., Ltd.
- Yoshihiro Shojo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY