Inventor
WU SHANG-QIAN
JP7 patents
Patents
7 patentsUS5821537AOct 13, 1998
Infrared spectroscopic analysis method for gases and device employing the method therein
NIPPON OXYGEN CO LTD33 citations91
US5703365ADec 30, 1997
Infrared spectroscopic analysis method for gases and device employing the method therein
NIPPON OXYGEN CO LTD23 citations91
US6040915AMar 21, 2000
Analysis method for gases and apparatus therefor
NIPPON OXYGEN CO LTD40 citations90
US6519039B1Feb 11, 2003
Gas spectrochemical analyzer, and spectrochemical analyzing method
NIPPON OXYGEN CO LTD24 citations89
US6823743B2Nov 30, 2004
Method and apparatus for measuring concentrations of components of fluid
NIPPON OXYGEN CO LTD13 citations83
US6857324B2Feb 22, 2005
Method and apparatus for measuring concentrations of components of fluid
NIPPON OXYGEN CO LTD10 citations73
US6717666B2Apr 6, 2004
Method and apparatus for measuring nitrogen in a gas
NIPPON OXYGEN CO LTD8 citations72