Junko Yamaguchi

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Shimizu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Thermal image transfer recording medium
- Patent number 6,117,562
- Issue date Sep 12, 2000
- Ricoh Company, Ltd.
- Junko Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer recording medium and recording method using...
- Patent number 5,716,477
- Issue date Feb 10, 1998
- Ricoh Company, Ltd.
- Junko Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer sheet and thermal image transfer recording m...
- Patent number 5,248,543
- Issue date Sep 28, 1993
- Ricoh Company, Ltd.
- Junko Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer recording medium
- Patent number 4,983,446
- Issue date Jan 8, 1991
- Ricoh Company, Ltd.
- Keishi Taniguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Polyamides and thermosensitive image transfer recording medium usin...
- Patent number 4,978,709
- Issue date Dec 18, 1990
- Ricoh Company, Ltd.
- Keishi Taniguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image transfer type thermosensitive recording medium
- Patent number 4,777,079
- Issue date Oct 11, 1988
- Ricoh Company, Ltd.
- Masanaka Nagamoto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS