Inventor · Hirakata, JP

Eiji Fujii

117Patents
18h-index
113Co-inventors
89Inventor score

Filing activity: Jun 3, 1986 → May 13, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US6044795A Automatic feeding system having animal carried transmitter which transmits feeding instructions to feeder Human Necessities 52 Expired
US5624864A Semiconductor device having capacitor and manufacturing method thereof Emerging Cross-Sectional Technologies 51 Expired
US5105288A Liquid crystal display apparatus with the application of black level signal for suppressing light leakage Physics 47 Expired
US6204111A Fabrication method of capacitor for integrated circuit Electricity 47 Expired
US5245452A Active matric drive liquid crystal display device using polycrystalline silicon pixel electrodes Physics 37 Expired
US5770921A Plasma display panel with protective layer of an alkaline earth oxide Emerging Cross-Sectional Technologies 36 Expired
US5006363A Plasma assited MO-CVD of perooskite dalectric films Chemistry; Metallurgy 32 Expired
US7083270B2 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Performing Operations; Transporting 31 Expired
US5661319A Semiconductor device having capacitor Electricity 29 Expired
US5459635A Laminated thin film capacitor and method for producing the same Electricity 28 Expired
US6081182A Temperature sensor element and temperature sensor including the same Electricity 24 Expired
US5780351A Semiconductor device having capacitor and manufacturing method thereof Emerging Cross-Sectional Technologies 24 Expired
US4975324A Perpendicular magnetic film of spinel type iron oxide compound and its manufacturing process Emerging Cross-Sectional Technologies 24 Expired
US4953385A Information storage stamper and method of manufacturing disks using the same Emerging Cross-Sectional Technologies 22 Expired
US5663089A Method for producing a laminated thin film capacitor Electricity 21 Expired
US5993543A Method of producing plasma display panel with protective layer of an alkaline earth oxide Emerging Cross-Sectional Technologies 20 Expired
US4957812A Composite magnetic powder, method for producing the same and recording medium containing the same Emerging Cross-Sectional Technologies 20 Expired
US5406445A Thin film capacitor and method of manufacturing the same Electricity 19 Expired
US5717233A Semiconductor device having capacitior and manufacturing method thereof Electricity 16 Expired
US5755888A Method and apparatus of forming thin films Chemistry; Metallurgy 16 Expired
US4825256A Image recording device Physics 16 Expired
US5644158A Semiconductor memory device reducing hydrogen content Electricity 16 Expired
US6969157B2 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Performing Operations; Transporting 15 Expired
US6014073A Temperature sensor element, temperature sensor having the same and method for producing the same temperature sensor element Electricity 13 Expired
US7348715B2 Piezoelectric element and method for manufacturing the same, and ink jet head and ink jet recording apparatus using the piezoelectric element Performing Operations; Transporting 13 Expired

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