Hiroyasu Kato

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for stencil printing
- Patent number 6,199,479
- Issue date Mar 13, 2001
- Riso Kagaku Corporation
- Takashi Isozaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drum type printer having mechanism for adjusting transverse positio...
- Patent number 6,192,793
- Issue date Feb 27, 2001
- Riso Kagaku Corporation
- Katsuro Motoe
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Couple of gear wheels for driving printing drum with means for mutu...
- Patent number 5,964,150
- Issue date Oct 12, 1999
- Riso Kagaku Corporation
- Hiroyasu Kato
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink blocking member in rotary stencil printing machine and printing...
- Patent number 5,730,050
- Issue date Mar 24, 1998
- Riso Kagaku Corporation
- Hiroyasu Kato
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink supply device for printing apparatus
- Patent number 5,657,691
- Issue date Aug 19, 1997
- Riso Kagaku Corporation
- Hiroyasu Kato
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS