Yoshihiro Hirota
29Patents
9h-index
56Co-inventors
78Inventor score
Filing activity: Oct 9, 1991 → Oct 19, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6373264B1 | Impedance detection apparatus and method of physical variable | Electricity | 41 | Expired |
| US6335642B1 | Impedance-to-voltage converter | Physics | 24 | Expired |
| US6828806B1 | Electrostatic capacitance sensor, electrostatic capacitance sensor component, object mounting body and object mounting apparatus | Electricity | 16 | Expired |
| US6348809B1 | Microscopic capacitance measurement system and probing system | Physics | 13 | Expired |
| US6034549A | Level shift circuit | Electricity | 11 | Expired |
| US7742277B2 | Dielectric film capacitor and method of manufacturing the same | Emerging Cross-Sectional Technologies | 11 | Active |
| US6756790B2 | Impedance detection circuit, impedance detection device, and impedance detection method | Physics | 10 | Expired |
| US6331780A | Static capacitance-to-voltage converter and converting method | Physics | 10 | Expired |
| US6326795A | Capacitance detection system and method | Electricity | 9 | Expired |
| US8258571B2 | MOS semiconductor memory device having charge storage region formed from stack of insulating films | Electricity | 8 | Active |
| US5217849A | Process for making a two-layer film carrier | Electricity | 5 | Expired |
| US6194888A | Impedance-to-voltage converter and converting method | Physics | 5 | Expired |
| US5973538A | Sensor circuit | Physics | 4 | Expired |
| US7161360B2 | Electrostatic capacitance sensor, electrostatic capacitance sensor component, object mounting body and object mounting apparatus | Electricity | 4 | Expired |
| US6861552B2 | Adamantyl ester monomer composition | Chemistry; Metallurgy | 2 | Expired |
| US5892266A | Layout structure of capacitive element(s) and interconnections in a semiconductor | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8076892B2 | Stator position adjustment method, motor drive device and stator position adjustment system | Emerging Cross-Sectional Technologies | 2 | Active |
| US5305176A | Inductive load drive circuit | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7026504B2 | Process for preparing alkyladamantyl esters and compositions | Chemistry; Metallurgy | 0 | Expired |
| US10748782B2 | Method of manufacturing semiconductor device | Electricity | 0 | Active |
| US7897498B2 | Method for manufacturing semiconductor device | Emerging Cross-Sectional Technologies | 0 | Active |
| US6770777B2 | Process for producing 2-alkyl-2-adamantyl ester | Chemistry; Metallurgy | 0 | Expired |
| US6696595B2 | Process of the preparation of high-purity alkyladamantyl esters | Chemistry; Metallurgy | 0 | Expired |
| US8247289B2 | Capacitor and manufacturing method thereof | Electricity | 0 | Active |
| US8318614B2 | Method for forming silicon nitride film, method for manufacturing nonvolatile semiconductor memory device, nonvolatile semiconductor memory device and plasma apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.