Chikao Harada
30Patents
18h-index
38Co-inventors
81Inventor score
Filing activity: Nov 27, 1978 → Aug 25, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5462051A | Medical communication system | Emerging Cross-Sectional Technologies | 971 | Expired |
| US5660182A | Inflatable cuff used for blood pressure measurement and automatic blood pressure measuring apparatus including inflatable cuff | Human Necessities | 147 | Expired |
| US4729381A | Living body information recorder | Human Necessities | 112 | Expired |
| US4951679A | Pulse wave detecting apparatus having placement-condition detecting means | Human Necessities | 71 | Expired |
| US5617868A | Pulse wave detecting apparatus | Human Necessities | 71 | Expired |
| US5179956A | Contact pressure sensor | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5131400A | Pulse wave detecting apparatus | Human Necessities | 47 | Expired |
| US4901733A | Pulse wave detecting apparatus | Human Necessities | 47 | Expired |
| US4928700A | Pulse wave detecting apparatus | Human Necessities | 38 | Expired |
| US4976268A | Pressure-pulse-wave detecting apparatus | Human Necessities | 35 | Expired |
| US5560366A | Oscillometric blood pressure measuring apparatus | Human Necessities | 34 | Expired |
| US8939908B2 | Ultrasonic blood vessel inspecting apparatus | Physics | 31 | Active |
| US5101829A | Semiconductor pressure pulse wave sensor | Human Necessities | 28 | Expired |
| US4356827A | Method of arrhythmia detection with detecting mechanism | Human Necessities | 25 | Expired |
| US5653241A | Blood-pressure monitor apparatus | Physics | 22 | Expired |
| US4262674A | Sphygmomanometer with an arrhythmia detecting mechanism | Human Necessities | 21 | Expired |
| US4928701A | Method and apparatus for monitoring blood pressure | Human Necessities | 21 | Expired |
| US6068601A | Blood pressure measuring apparatus | Human Necessities | 18 | Expired |
| US6748262B2 | Heartbeat synchronous information acquiring apparatus | Human Necessities | 17 | Expired |
| US5595180A | Method and apparatus for winding cuff in blood pressure measurement | Human Necessities | 15 | Expired |
| US7412776B2 | Sensor holding apparatus | Human Necessities | 15 | Active |
| US5730139A | Blood pressure measuring apparatus | Human Necessities | 14 | Expired |
| US6475155B2 | Pulse-wave-propagation-relating information obtaining apparatus and arterial-bifurcate-portion determining apparatus | Human Necessities | 14 | Expired |
| US4947855A | Blood pressure measuring apparatus | Human Necessities | 13 | Expired |
| US6702768B2 | Foot bending and stretching apparatus | Human Necessities | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.