Masaaki Fukugauchi

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic carrier
- Patent number 6,506,531
- Issue date Jan 14, 2003
- Canon Kabushiki Kaisha
- Toshiyuki Hakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic carrier for electrophotography
- Patent number 5,654,120
- Issue date Aug 5, 1997
- Toda Kogyo Corporation
- Toshiyuki Hakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Superparamagnetic fine particles of iron oxide and magnetic recordi...
- Patent number 5,368,933
- Issue date Nov 29, 1994
- Toda Kogyo Corp.
- Koso Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Superparamagnetic fine particles of iron oxide and magnetic recordi...
- Patent number 5,236,783
- Issue date Aug 17, 1993
- Toda Kogyo Corp.
- Koso Aoki
- G11 - INFORMATION STORAGE