Seiichi Takagi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic toner
- Patent number 5,422,215
- Issue date Jun 6, 1995
- Canon Kabushiki Kaisha
- Seiichi Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic imaging apparatus and facsimile apparatus employing t...
- Patent number 5,333,059
- Issue date Jul 26, 1994
- Canon Kabushiki Kaisha
- Yoshihiko Hyosu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Binder resin used in a toner
- Patent number 5,321,091
- Issue date Jun 14, 1994
- Canon Kabushiki Kaisha
- Yoshihiko Hiyousu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Binder resin for a toner for developing electrostatic images, and p...
- Patent number 5,310,812
- Issue date May 10, 1994
- Canon Kabushiki Kaisha
- Satoshi Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Binder resin and process for producing it
- Patent number 5,219,946
- Issue date Jun 15, 1993
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Binder resin for a toner for developing electrostatic images, and p...
- Patent number 5,219,947
- Issue date Jun 15, 1993
- Canon Kabushiki Kaisha
- Satoshi Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner for developing electrostatic image
- Patent number 5,143,810
- Issue date Sep 1, 1992
- Canon Kabushiki Kaisha
- Keita Nozawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic image developing toner and process for its production...
- Patent number 5,126,224
- Issue date Jun 30, 1992
- Canon Kabushiki Kaisha
- Yoshihiko Hyosu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry magnetic electrostatic developer
- Patent number 5,112,714
- Issue date May 12, 1992
- Canon Kabushiki Kaisha
- Eiichi Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic images, binder therefor and proc...
- Patent number 4,966,829
- Issue date Oct 30, 1990
- Canon Kabushiki Kaisha
- Satoshi Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner for developing electrostatic images
- Patent number 4,939,060
- Issue date Jul 3, 1990
- Canon Kabushiki Kaisha
- Koichi Tomiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic magnetic dry developer containing cerium oxide...
- Patent number 4,824,752
- Issue date Apr 25, 1989
- Canon Kabushiki Kaisha
- Satoshi Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Containing magnetic particles having a bulk resistivity of at most...
- Patent number 4,803,142
- Issue date Feb 7, 1989
- Canon Kabushiki Kaisha
- Seiichi Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic method uses toner of polyalkylene and non-magne...
- Patent number 4,702,986
- Issue date Oct 27, 1987
- Canon Kabushiki Kaisha
- Eiichi Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner and process for producing the same
- Patent number 4,609,607
- Issue date Sep 2, 1986
- Canon Kabushiki Kaisha
- Seiichi Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for producing toner
- Patent number 4,592,990
- Issue date Jun 3, 1986
- Canon Kabushiki Kaisha
- Seiichi Takagi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic toner comprising magnetic powders having controlled size d...
- Patent number 4,543,312
- Issue date Sep 24, 1985
- Canon Kabushiki Kaisha
- Kazunori Murakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic color toner
- Patent number 4,448,870
- Issue date May 15, 1984
- Canon Kabushiki Kaisha
- Eiichi Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Seiichi Takagi

Person

Patents Grantslast 30 patents

Magnetic toner

Electrostatic imaging apparatus and facsimile apparatus employing t...

Binder resin used in a toner

Binder resin for a toner for developing electrostatic images, and p...

Binder resin and process for producing it

Binder resin for a toner for developing electrostatic images, and p...

Magnetic toner for developing electrostatic image

Electrostatic image developing toner and process for its production...

Dry magnetic electrostatic developer

Toner for developing electrostatic images, binder therefor and proc...

Magnetic toner for developing electrostatic images

Electrophotographic magnetic dry developer containing cerium oxide...

Containing magnetic particles having a bulk resistivity of at most...

Electrophotographic method uses toner of polyalkylene and non-magne...

Magnetic toner and process for producing the same

Process for producing toner

Magnetic toner comprising magnetic powders having controlled size d...

Magnetic color toner