Inventor
IGAWA TAKAO
11 patents
Patents
11 patentsUS5158924AOct 27, 1992
Reversible thermosensitive recording material and image display method of using the same
RICOH KK43 citations92
US5643851AJul 1, 1997
Reversible thermosensitive recording label and reversible thermosensitive recording card
RICOH KK12 citations72
US5625524AApr 29, 1997
Reversible thermosensitive recording medium and method of producing the same
RICOH KK9 citations72
US5310718AMay 10, 1994
Method of compensating for distortion in recording layer in reversible thermosensitive recording medium
RICOH KK11 citations72
US4087584AMay 2, 1978
Lithographic printing plate
RICOH KK12 citations72
US3984378AOct 5, 1976
Process for manufacturing nitropyrene-formaldehyde resin
RICOH KK13 citations72
US4296190AOct 20, 1981
Photosensitive material for use in electrophotography with a radiation cured binder resin
RICOH KK18 citations71
US4728556AMar 1, 1988
Electrostatic recording medium
RICOH KK6 citations68
US5985077ANov 16, 1999
Reversible thermosensitive recording medium and method of producing the same
RICOH KK3 citations61
US5762998AJun 9, 1998
Method of producing reversible thermosensitive recording medium
RICOH KK3 citations61
US3966471AJun 29, 1976
Electro photosensitive materials with a protective layer
RICOH KK5 citations57