Toshimitsu Sakai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Stencil printing machine having static electricity discharging members
- Patent number 6,318,254
- Issue date Nov 20, 2001
- Riso Kagaku Corporation
- Takeshi Saitoh
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Stencil printing drum structure
- Patent number 5,619,918
- Issue date Apr 15, 1997
- Riso Kagaku Corporation
- Hideo Negishi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Paper delivery apparatus of printing machine
- Patent number 5,584,477
- Issue date Dec 17, 1996
- Riso Kagaku Corporation
- Toshimitsu Sakai
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL