Inventor · disambiguated record
Takuo Aoyagi
Also filed as: AOYAGI TAKUO
17 granted patents·2,995 citations·filing 1987–2009
97Inventor score
Top patents by PatentIndex Score
17 records- 0197US4832484AApparatus for determining the concentration of a light-absorbing material in bloodNIHON KOHDEN CORP·Filed 1987·Granted May 23, 1989·219 cites·3 claims
- 0295US5720284AApparatus for measuring hemoglobinNIHON KOHDEN CORP·Filed 1996·Granted Feb 24, 1998·206 cites·1 claims
- 0392US5766125AApparatus for determining the concentration of light-absorbing materials in bloodNIHON KOHDEN CORP·Filed 1995·Granted Jun 16, 1998·139 cites·13 claims
- 0490US6671526B1Probe and apparatus for determining concentration of light-absorbing materials in living tissueNIHON KOHDEN CORP·Filed 2000·Granted Dec 30, 2003·289 cites·12 claims
- 0590US5385143AApparatus for measuring predetermined data of living tissueNIHON KOHDEN CORP·Filed 1993·Granted Jan 31, 1995·486 cites·10 claims
- 0688US5278627AApparatus for calibrating pulse oximeterNIHON KOHDEN CORP·Filed 1992·Granted Jan 11, 1994·483 cites·6 claims
- 0784US6230035B1Apparatus for determining concentrations of light-absorbing materials in living tissueNIHON KOHDEN CORP·Filed 1999·Granted May 8, 2001·345 cites·8 claims
- 0884US4964010AApparatus for limiting a time integration value of a pulsed currentMIYASAKA KATSUYUKI·Filed 1989·Granted Oct 16, 1990·58 cites·8 claims
- 0979US5313940APhoto-electric pulse wave measuring probeNIHON KOHDEN CORP·Filed 1992·Granted May 24, 1994·239 cites·11 claims
- 1067US7206621B2Pulse oximeterNIHON KOHDEN CORP·Filed 2004·Granted Apr 17, 2007·36 cites·4 claims
- 1165US5666952ATissue transmitted light sensorNIHON KOHDEN CORP·Filed 1996·Granted Sep 16, 1997·133 cites·2 claims
- 1264US5999841AApparatus for measuring circulating blood volumeNIHON KOHDEN CORP·Filed 1997·Granted Dec 7, 1999·103 cites·3 claims
- 1363US5190040AApparatus for measuring the change in the concentration of a pigment in bloodNIHON KOHDEN CORP·Filed 1991·Granted Mar 2, 1993·100 cites·12 claims
- 1461US5697371AApparatus for measuring circulating blood volumeNIHON KOHDEN CORP·Filed 1994·Granted Dec 16, 1997·80 cites·7 claims
- 1560US8024021B2Time-segmented pulse oximetry and pulse oximeter performing the sameNIHON KOHDEN CORP·Filed 2006·Granted Sep 20, 2011·1 cites·6 claims
- 1655US5690104AApparatus and method for measuring oxygen saturation in blood and apparatus and method for measuring concentration of light-absorbing materials in bloodNIHON KOHDEN CORP·Filed 1996·Granted Nov 25, 1997·78 cites·4 claims
- 1745US8548546B2Pulse oximetry and pulse oximeterAOYAGI TAKUO·Filed 2009·Granted Oct 1, 2013·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →