Tomoaki Yokoyama

Person

Toyokawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developing apparatus having adjacent similar magnetic poles
- Patent number 5,491,541
- Issue date Feb 13, 1996
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Developing apparatus
- Patent number 5,442,425
- Issue date Aug 15, 1995
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a plurality of developing devices
- Patent number 5,283,615
- Issue date Feb 1, 1994
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Image forming apparatus having developing devices which use differe...
- Patent number 5,122,843
- Issue date Jun 16, 1992
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for forming multi-color images
- Patent number 5,063,127
- Issue date Nov 5, 1991
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for supplying toner to a developing device in...
- Patent number 5,040,023
- Issue date Aug 13, 1991
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having plural magnetic brush developing dev...
- Patent number 5,038,176
- Issue date Aug 6, 1991
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,036,369
- Issue date Jul 30, 1991
- Minolta Camera Kabushiki Kaisha
- Kunio Toda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus including a partitioning arrangement for parti...
- Patent number 5,012,285
- Issue date Apr 30, 1991
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with improved toner replenishment
- Patent number 5,006,893
- Issue date Apr 9, 1991
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner supply device for use in image forming apparatus
- Patent number 4,924,270
- Issue date May 8, 1990
- Minolta Camera Kabushiki Kaisha
- Mineyuki Sako
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device in an image forming apparatus
- Patent number 4,917,043
- Issue date Apr 17, 1990
- Minolta Camera Kabushiki Kaisha
- Tomoaki Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus with variable developing bias voltage
- Patent number 4,912,513
- Issue date Mar 27, 1990
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Reversal image forming method
- Patent number 4,897,331
- Issue date Jan 30, 1990
- Minolta Camera Kabushiki Kaisha
- Naoki Toyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image editing method
- Patent number 4,891,287
- Issue date Jan 2, 1990
- Minolta Camera Kabushiki Kaisha
- Naoki Toyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copying apparatus
- Patent number 4,835,566
- Issue date May 30, 1989
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for the formation of outline images corresponding to the per...
- Patent number 4,828,953
- Issue date May 9, 1989
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copiers
- Patent number 4,821,071
- Issue date Apr 11, 1989
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for the formation of outline images corresponding to the per...
- Patent number 4,794,062
- Issue date Dec 27, 1988
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for the formation of outline images corresponding to the per...
- Patent number 4,792,775
- Issue date Dec 20, 1988
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copying method and apparatus
- Patent number 4,785,331
- Issue date Nov 15, 1988
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus for use in image-forming system and developing...
- Patent number 4,766,458
- Issue date Aug 23, 1988
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Copier machines
- Patent number 4,745,437
- Issue date May 17, 1988
- Minolta Camera Kabushiki Kaisha
- Tateki Oka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tomoaki Yokoyama

Person

Patents Grantslast 30 patents

Developing apparatus having adjacent similar magnetic poles

Developing apparatus

Image forming apparatus having a plurality of developing devices

Image forming apparatus having developing devices which use differe...

Method for forming multi-color images

Method and apparatus for supplying toner to a developing device in...

Image forming apparatus having plural magnetic brush developing dev...

Image forming apparatus

Developing apparatus including a partitioning arrangement for parti...

Image forming apparatus with improved toner replenishment

Toner supply device for use in image forming apparatus

Developing device in an image forming apparatus

Developing apparatus with variable developing bias voltage

Reversal image forming method

Image editing method

Electrophotographic copying apparatus

Method for the formation of outline images corresponding to the per...

Electrophotographic copiers

Method for the formation of outline images corresponding to the per...

Method for the formation of outline images corresponding to the per...

Electrophotographic copying method and apparatus

Developing apparatus for use in image-forming system and developing...

Copier machines