Michio Sumiyoshi

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power-saving type electrophotography apparatus suitable for use wit...
- Patent number 6,405,001
- Issue date Jun 11, 2002
- Hitachi, Ltd.
- Michio Sumiyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Double-surface printing apparatus
- Patent number 6,330,425
- Issue date Dec 11, 2001
- Hitachi, Ltd.
- Yoshio Ohuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotography apparatus
- Patent number 6,256,464
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Michio Sumiyoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color printer with transfer and superposition of different color to...
- Patent number 5,602,578
- Issue date Feb 11, 1997
- Hitachi, Ltd.
- Michio Sumiyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color image electrophotographic apparatus having photosensitive bod...
- Patent number 5,285,221
- Issue date Feb 8, 1994
- Hitachi, Ltd.
- Michio Sumiyoshi
- G06 - COMPUTING CALCULATING COUNTING