Koichi Yokosawa
15Patents
11h-index
23Co-inventors
68Inventor score
Filing activity: Mar 28, 1988 → Jul 15, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5829439A | Needle-like ultrasonic probe for ultrasonic diagnosis apparatus, method of producing same, and ultrasonic diagnosis apparatus using same | Human Necessities | 155 | Expired |
| US4913883A | Particle agglutination immunoassay apparatus | Physics | 55 | Expired |
| US6815949B2 | Apparatus for measuring a magnetic field | Human Necessities | 42 | Expired |
| US5166614A | Integrated-type SQUID magnetometer having a magnetic shield, and a multichannel SQUID magnetometer using the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6681131B2 | Apparatus for measuring bio-magnetic fields | Human Necessities | 25 | Expired |
| US6853185B2 | Magnetic field measurement system | Physics | 20 | Expired |
| US5955400A | SQUID integrated with pickup coils | Physics | 19 | Expired |
| US6261232A | Continuous wave transmission/reception type ultrasonic imaging device and ultrasonic probe | Physics | 17 | Expired |
| US7345590B2 | Wireless terminal with gas leakage detection function, gas leakage detection system using the same, and gas leakage notification method | Physics | 14 | Expired |
| US4875010A | Circuit for detecting AC magnetic field due to magnetic resonance with a variable resistance for noise suppression | Physics | 13 | Expired |
| US6665552B2 | Gradiometer integrating pickup coils and magnetic field measurement system | Physics | 12 | Expired |
| US6745063B2 | Biomagnetic field measuring apparatus | Human Necessities | 8 | Expired |
| US5021739A | Superconductor type radio frequency with adjustable inductance magnetic flux measuring circuit | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6528994B2 | Magnetic field measurement apparatus | Physics | 4 | Expired |
| US7242309B2 | Gas detection system | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.