Inventor · disambiguated record
Hirotoshi Hagiwara
Also filed as: HAGIWARA HIROTOSHI
7 granted patents·166 citations·filing 1979–1998
86Inventor score
Files withDENKI KAGAKU KOGYO KK7
Top patents by PatentIndex Score
7 records- 0193US4721878ACharged particle emission source structureDENKI KAGAKU KOGYO KK·Filed 1986·Granted Jan 26, 1988·87 cites·20 claims
- 0284US4878866AThermionic cathode structureDENKI KAGAKU KOGYO KK·Filed 1988·Granted Nov 7, 1989·39 cites·5 claims
- 0379US4482839AThermionic emission cathode and preparation thereofDENKI KAGAKU KOGYO KK·Filed 1982·Granted Nov 13, 1984·19 cites·7 claims
- 0468US4482838AThermionic emission cathodeDENKI KAGAKU KOGYO KK·Filed 1981·Granted Nov 13, 1984·13 cites·4 claims
- 0541US4311941AThermionic cathode supporting deviceDENKI KAGAKU KOGYO KK·Filed 1979·Granted Jan 19, 1982·4 cites·13 claims
- 0636US4591754AElectron gun for brightnessDENKI KAGAKU KOGYO KK·Filed 1985·Granted May 27, 1986·3 cites·8 claims
- 0725US6126875AProcess for producing a concrete productDENKI KAGAKU KOGYO KK·Filed 1998·Granted Oct 3, 2000·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →