Inventor
AOYAGI TAKUO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “AOYAGI TAKUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIHON KOHDEN CORP
15 patentsUS5385143AJan 31, 1995
Apparatus for measuring predetermined data of living tissue
NIHON KOHDEN CORP486 citations99
US6671526B1Dec 30, 2003
Probe and apparatus for determining concentration of light-absorbing materials in living tissue
NIHON KOHDEN CORP289 citations98
US5999841ADec 7, 1999
Apparatus for measuring circulating blood volume
NIHON KOHDEN CORP103 citations98
US5720284AFeb 24, 1998
Apparatus for measuring hemoglobin
NIHON KOHDEN CORP206 citations98
US5278627AJan 11, 1994
Apparatus for calibrating pulse oximeter
NIHON KOHDEN CORP483 citations98
US4832484AMay 23, 1989
Apparatus for determining the concentration of a light-absorbing material in blood
NIHON KOHDEN CORP219 citations98
US5666952ASep 16, 1997
Tissue transmitted light sensor
NIHON KOHDEN CORP133 citations97
US6230035B1May 8, 2001
Apparatus for determining concentrations of light-absorbing materials in living tissue
NIHON KOHDEN CORP345 citations96
US5766125AJun 16, 1998
Apparatus for determining the concentration of light-absorbing materials in blood
NIHON KOHDEN CORP139 citations96
US5697371ADec 16, 1997
Apparatus for measuring circulating blood volume
NIHON KOHDEN CORP80 citations96
US5690104ANov 25, 1997
Apparatus and method for measuring oxygen saturation in blood and apparatus and method for measuring concentration of light-absorbing materials in blood
NIHON KOHDEN CORP78 citations96
US5190040AMar 2, 1993
Apparatus for measuring the change in the concentration of a pigment in blood
NIHON KOHDEN CORP100 citations96
US5313940AMay 24, 1994
Photo-electric pulse wave measuring probe
NIHON KOHDEN CORP239 citations95
US7206621B2Apr 17, 2007
Pulse oximeter
NIHON KOHDEN CORP36 citations92
US8024021B2Sep 20, 2011
Time-segmented pulse oximetry and pulse oximeter performing the same
NIHON KOHDEN CORP1 citations52