Junji Kojima
26Patents
12h-index
36Co-inventors
81Inventor score
Filing activity: Jan 12, 1990 → Jan 12, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5661813A | Method and apparatus for multi-channel acoustic echo cancellation | Electricity | 109 | Expired |
| US5761318A | Method and apparatus for multi-channel acoustic echo cancellation | Electricity | 67 | Expired |
| US6246760A | Subband echo cancellation method for multichannel audio teleconference and echo canceller using the same | Electricity | 49 | Expired |
| US5721772A | Subband acoustic echo canceller | Electricity | 37 | Expired |
| US5818945A | Subband echo cancellation method using projection algorithm | Electricity | 28 | Expired |
| US6522237B1 | Electrode for PTC thermistor and method for producing the same, and PTC thermistor | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5774561A | Subband acoustic echo canceller | Electricity | 22 | Expired |
| US6157289A | PTC thermistor | Electricity | 21 | Expired |
| US6188308A | PTC thermistor and method for manufacturing the same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6556123B1 | Polymer chip PTC thermistor | Electricity | 15 | Expired |
| US5539396A | Remote monitoring system for instrumentation | Physics | 14 | Expired |
| US6593844B1 | PTC chip thermistor | Electricity | 12 | Expired |
| US5602765A | Adaptive transfer function estimating method and estimating device using the same | Physics | 8 | Expired |
| US6348852B1 | Chip PTC thermistor and method of manufacturing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5174425A | Steering angle detecting device for a motor vehicle | Physics | 5 | Expired |
| US6558616B2 | Electrode for PTC thermistor and method for producing the same, and PTC thermistor | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6481094B1 | Method of manufacturing chip PTC thermistor | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6441717B1 | PTC thermister chip | Electricity | 2 | Expired |
| US5310473A | Removable sample testing member for use in measuring ion concentration | Physics | 2 | Expired |
| US7183892B2 | Chip PTC thermistor and method for manufacturing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6438821B1 | PTC thermistor and method for manufacturing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6782604B2 | Method of manufacturing a chip PTC thermistor | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5121050A | Method of measuring physical properties by super-thin liquid membrane forming mode and interface reaction detection type boisensor by super-thin liquid membrane forming mode | Physics | 0 | Expired |
| US6993444B2 | Measuring method of component concentration in solution | Physics | 0 | Expired |
| US5185072A | Ion-selective electrode and method of producing the same | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.