Takeshi Yuyama

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Thermosensitive recording materials
- Patent number 5,622,909
- Issue date Apr 22, 1997
- Ricoh Company, Ltd.
- Hiromi Furuya
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer recording medium
- Patent number 5,352,527
- Issue date Oct 4, 1994
- Ricoh Company, Ltd.
- Shigeyuki Harada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermosensitive image transfer ink sheet
- Patent number 5,328,754
- Issue date Jul 12, 1994
- Ricoh Company, Ltd.
- Takeshi Yuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS