Inventor · disambiguated record
Toshiharu Higuchi
Also filed as: HIGUCHI TOSHIHARU
10 granted patents·101 citations·filing 1979–1999
89Inventor score
Technology areasH01J
Top patents by PatentIndex Score
10 records- 0178US6130502ACathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assemblyTOSHIBA KK·Filed 1997·Granted Oct 10, 2000·35 cites·18 claims
- 0268US4338542ADirectly heated cathode assemblyTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Jul 6, 1982·15 cites·12 claims
- 0364US4298814ADirectly heated type cathode assemblyTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Nov 3, 1981·10 cites·19 claims
- 0458US6034469AImpregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assemblyTOSHIBA KK·Filed 1996·Granted Mar 7, 2000·10 cites·8 claims
- 0553US5543682ACathode assembly incorporating a black layer formed from particles having a specified average particle sizeTOSHIBA KK·Filed 1994·Granted Aug 6, 1996·10 cites·3 claims
- 0652US6447355B1Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity regionTOSHIBA KK·Filed 1999·Granted Sep 10, 2002·7 cites·4 claims
- 0746US5027029AIndirectly heated cathode assembly and its associated electron gun structureTOSHIBA KK·Filed 1989·Granted Jun 25, 1991·6 cites·7 claims
- 0843US6304024B1Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity regionTOSHIBA KK·Filed 1999·Granted Oct 16, 2001·4 cites·10 claims
- 0935US5762997AMethod of manufacturing a cathode assemblyTOSHIBA KK·Filed 1996·Granted Jun 9, 1998·3 cites·27 claims
- 1027US4524296ACathode structure for electron tubeTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Jun 18, 1985·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →