International Superconductivity Technology Center
146Patents
12Active
146Granted
40Portfolio score
Filing activity: Dec 27, 1989 → Sep 10, 2012 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6242939A | Superconducting circuit having superconductive circuit device of voltage-type logic and superconductive circuit device of fluxoid-type logic device selectively used therein | Electricity | 95 | Expired |
| US5812943A | High frequency band high temperature superconductor mixer antenna which allows a superconductor feed line to be used in a low frequency region | Electricity | 93 | Expired |
| US5925892A | Josephson junction element with an asymmetric groove providing a single weak link region | Electricity | 53 | Expired |
| US5719105A | Superconducting element | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5350738A | Method of manufacturing an oxide superconductor film | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5650376A | (Nd, Ba).sub.3 Cu.sub.3 O.sub.7-d superconductor film | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5190913A | Apparatus for producing superconducting oxide film | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6486756B2 | Superconductor signal amplifier | Electricity | 27 | Expired |
| US6011981A | Oxide superconductor multilayered film and oxide superconductor josephson device | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6632539B1 | Polycrystalline thin film and method for preparing thereof, and superconducting oxide and method for preparation thereof | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5276012A | Laser-assisted CVD process forming oxide superconducting films | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5341059A | Superconducting bearing unit and operating method thereof | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5849670A | Thallium group superconducting wire | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7075171B2 | Superconducting system, superconducting circuit chip, and high-temperature superconducting junction device with a shunt resistor | Electricity | 15 | Expired |
| US5942765A | High-temperature superconducting random access memory | Physics | 15 | Expired |
| US5474976A | Production of oxide superconductors having large magnetic levitation force | Electricity | 15 | Expired |
| US5525584A | Superconductor and method of producing same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6922066B2 | Sampler and method of measuring a waveform of a current with jitters reduced | Physics | 13 | Expired |
| US5602079A | Method and apparatus for fabricating superconductor device | Electricity | 12 | Expired |
| US5496799A | Method for making rare earth superconductive composite | Electricity | 11 | Expired |
| US5369275A | Apparatus for solid surface analysis using X-ray spectroscopy | Physics | 11 | Expired |
| US5920811A | Superconductor mixer and phase control method therefor | Electricity | 11 | Expired |
| US5521150A | Method of joining Y-based oxide superconductors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5453306A | Process for depositing oxide film on metallic substrate by heat plasma flash evaporation method | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6016433A | Oxide superconductor Josephson junction element and process for producing same | Electricity | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.