Nakatsuka; Katsuto

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Color magnetic toner and process for producing the same
- Patent number 6,110,633
- Issue date Aug 29, 2000
- Nittetsu Mining Co., Ltd.
- Takafumi Atarashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder having multilayered film on its surface and process for prep...
- Patent number 5,985,466
- Issue date Nov 16, 1999
- Nittetsu Mining Co., Ltd.
- Takafumi Atarashi
- B22 - CASTING POWDER METALLURGY

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