Syun Kamei

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Kitamoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive recording paper causing reduced thermal head abrasion
- Patent number 4,396,684
- Issue date Aug 2, 1983
- Mitsubishi Paper Mills, Ltd.
- Sadao Morishita
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heat-sensitive recording composition with improved image stability
- Patent number 4,320,039
- Issue date Mar 16, 1982
- Mitsubishi Paper Mills, Ltd.
- Sadao Morishita
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS