Koichi Egara
15Patents
10h-index
14Co-inventors
61Inventor score
Filing activity: Mar 11, 1988 → Jan 29, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5011623A | Nonlinear optical material and nonlinear optical device | Chemistry; Metallurgy | 44 | Expired |
| US5708402A | Surface acoustic wave device improved in convolution efficiency, receiver using it, communication system using it, and method for producing surface acoustic wave device improved in convoluting efficiency | Physics | 33 | Expired |
| US5815055A | Matched filter with improved synchronous characteristics, and reception device and communication system using the same | Electricity | 32 | Expired |
| US5477098A | Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same | Electricity | 19 | Expired |
| US6020672A | Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device | Electricity | 16 | Expired |
| US5539687A | Correlator and communication system using it | Physics | 15 | Expired |
| US5760525A | Surface acoustic wave device and communication system using it | Electricity | 13 | Expired |
| US5367216A | Surface acoustic wave element and communication system using the same | Electricity | 13 | Expired |
| US5164628A | Elastic surface wave convolva having wave width converting means and communication system using same | Physics | 13 | Expired |
| US5200663A | Surface acoustic wave device provided with output transducer split into a plurality of portions, and communication system using the same | Physics | 11 | Expired |
| US5717274A | Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same | Electricity | 10 | Expired |
| US5003213A | Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases | Physics | 9 | Expired |
| US5185548A | Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same | Electricity | 8 | Expired |
| US5962950A | Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using the same spread spectrum signal receiver | Physics | 6 | Expired |
| US4882715A | Surface acoustic wave convolver with dielectric film of high non-linear effect | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.