Inventor · Hitachi, JP

Kunihiro Maeda

28Patents
12h-index
72Co-inventors
84Inventor score

Filing activity: Sep 15, 1975 → Apr 8, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
US5876659A Process for producing fiber reinforced composite Emerging Cross-Sectional Technologies 74 Expired
US6198119A Ferroelectric element and method of producing the same Electricity 56 Expired
US4540673A Sintered aluminum nitride and semi-conductor device using the same Emerging Cross-Sectional Technologies 41 Expired
US4624768A Electrophoresis apparatus Physics 30 Expired
US5093314A Superconducting wire and method of manufacturing the same Emerging Cross-Sectional Technologies 20 Expired
US4196442A Semiconductor device Electricity 19 Expired
US6487275B1 Anode target for X-ray tube and X-ray tube therewith Electricity 19 Expired
US5132257A Composite ceramic sintered body and process for production thereof Chemistry; Metallurgy 18 Expired
US4544642A Silicon carbide electrical insulator material of low dielectric constant Emerging Cross-Sectional Technologies 16 Expired
US4561010A Electrically insulating silicon carbide sintered body Electricity 16 Expired
US5060098A Magnetic recorder provided with a magnetic head slider having a non-magnetic oxide of spinel structure Physics 16 Expired
US4585706A Sintered aluminum nitride semi-conductor device Emerging Cross-Sectional Technologies 15 Expired
US4450426A Nonlinear resistor and process for producing the same Electricity 12 Expired
US4326187A Voltage non-linear resistor Chemistry; Metallurgy 11 Expired
US4420737A Potentially non-linear resistor and process for producing the same Emerging Cross-Sectional Technologies 10 Expired
US4057458A Method of making nickel zinc ferrite by liquid-phase epitaxial growth Chemistry; Metallurgy 8 Expired
US5519555A Magnetic head including PbO-V.sub.2 O.sub.5 -P.sub.2 O.sub.5 system glass bonding Physics 7 Expired
US5610570A Voltage non-linear resistor and fabricating method thereof Emerging Cross-Sectional Technologies 5 Expired
US5239434A Magnetic head, bonding glass used therefor and magnetic recording and reproducing apparatus Chemistry; Metallurgy 5 Expired
US5060097A Magnetic disc file including a slider which exhibits reduced deformation during operation Physics 4 Expired
US5508256A Oxide high-temperature superconducting material, method of preparing same and superconducting wires Emerging Cross-Sectional Technologies 2 Expired
US4561891A Powdery silicon carbide composition for sintering Electricity 2 Expired
US8119260B2 Rare-earth magnet Emerging Cross-Sectional Technologies 1 Expired
US4253038A Light source excited by high frequency for Zeeman effect atomic absorption analysis Electricity 1 Expired
US9475911B2 Polyester composition and polyester film Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.