Inventor
IWAMURA NORIO
JP6 patents
Patents
6 patentsUS6504293B1Jan 7, 2003
Cathode ray tube having an improved cathode
HITACHI LTD11 citations72
US6191528B1Feb 20, 2001
Cathode ray tube having an improved indirectly heated cathode
HITACHI LTD8 citations72
US6614147B2Sep 2, 2003
Cathode ray tube having an improved indirectly heated cathode structure
HITACHI LTD2 citations61
US6552479B2Apr 22, 2003
Cathode ray tube having an improved heater
HITACHI LTD5 citations61
US6335590B2Jan 1, 2002
Cathode ray tube having an indirectly heated cathode provided with a heater having a structure which substantially prevents cracks in an insulating coating thereof
HITACHI LTD2 citations61
US6492768B1Dec 10, 2002
Cathode ray tube having an improved indirectly heated cathode
HITACHI LTD5 citations59