Kazuo Fujioka

Person

Hiroshima-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic toner particles comprising magnetite particles containing...
- Patent number 6,103,437
- Issue date Aug 15, 2000
- Toda Kogyo Corporation
- Minoru Kozawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic particles for magnetic toner and process for producing the...
- Patent number 5,874,019
- Issue date Feb 23, 1999
- Toda Kogyo Corporation
- Naoki Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetite particles, magnetic iron oxide particles, process for the...
- Patent number 5,858,532
- Issue date Jan 12, 1999
- Toda Kogyo Corporation
- Minoru Kozawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic particles for magentic toner and process for producing the...
- Patent number 5,843,610
- Issue date Dec 1, 1998
- Toda Kogyo Corporation
- Naoki Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Iron oxide particles and process for producing the same
- Patent number 5,688,852
- Issue date Nov 18, 1997
- Toda Kogyo Corporation
- Hiromitsu Misawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Spherical magnetic particles for magnetic toner and process for pro...
- Patent number 5,652,060
- Issue date Jul 29, 1997
- Toda Kogyo Corporation
- Naoki Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Coated granular magnetite particles and process for producing the same
- Patent number 5,648,170
- Issue date Jul 15, 1997
- Toda Kogyo Corporation
- Yoji Okano
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic particles comprising magnetite core and process for produc...
- Patent number 5,599,627
- Issue date Feb 4, 1997
- Toda Kogyo Corporation
- Koso Aoki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Granular magnetite particles and process for producing the same
- Patent number 5,578,375
- Issue date Nov 26, 1996
- Toda Kogyo Corporation
- Yoji Okano
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Iron oxide particles and process for producing the same
- Patent number 5,512,405
- Issue date Apr 30, 1996
- Toda Kogyo Corporation
- Hiromitsu Misawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Iron oxide particles and process for producing the same
- Patent number 5,470,660
- Issue date Nov 28, 1995
- Toda Kogyo Corporation
- Hiromitsu Misawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic particle powder included in magnetic toners for magnetic i...
- Patent number 5,389,482
- Issue date Feb 14, 1995
- Toda Kogyo Corp.
- Yoji Okano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Spinel-type spherical, black iron oxide particles and process for t...
- Patent number 5,336,421
- Issue date Aug 9, 1994
- Toda Kogyo Corp.
- Eiichi Kurita
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic particles for magnetic toner
- Patent number 5,328,793
- Issue date Jul 12, 1994
- Toda Kogyo Corporation
- Hiromitsu Misawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic particles containing iron as the main component and proces...
- Patent number 5,232,805
- Issue date Aug 3, 1993
- Toda Kogyo Corporation
- Hiromitsu Misawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic particles used for electrostatic latent image developer an...
- Patent number 5,118,587
- Issue date Jun 2, 1992
- Toda Kogyo Corporation
- Shigeru Takaragi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Composite carrier particles for electrophotography and process for...
- Patent number 5,108,862
- Issue date Apr 28, 1992
- Toda Kogyo Corp.
- Souichiro Kishimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kazuo Fujioka

Person

Patents Grantslast 30 patents

Magnetic toner particles comprising magnetite particles containing...

Magnetic particles for magnetic toner and process for producing the...

Magnetite particles, magnetic iron oxide particles, process for the...

Magnetic particles for magentic toner and process for producing the...

Iron oxide particles and process for producing the same

Spherical magnetic particles for magnetic toner and process for pro...

Coated granular magnetite particles and process for producing the same

Magnetic particles comprising magnetite core and process for produc...

Granular magnetite particles and process for producing the same

Iron oxide particles and process for producing the same

Iron oxide particles and process for producing the same

Magnetic particle powder included in magnetic toners for magnetic i...

Spinel-type spherical, black iron oxide particles and process for t...

Magnetic particles for magnetic toner

Magnetic particles containing iron as the main component and proces...

Magnetic particles used for electrostatic latent image developer an...

Composite carrier particles for electrophotography and process for...