The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2017
Filed:
Sep. 24, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Tsutomu Kakuno, Fujisawa, JP;
Shigeyuki Takagi, Fujisawa, JP;
Yasutomo Shiomi, Koza, JP;
Akira Maekawa, Kamakura, JP;
Miyuki Kusaba, Meguro, JP;
Hiroshi Hasegawa, Yokosuka, JP;
Takashi Magara, Meguro, JP;
Isao Muraoka, Tokorozawa, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
A breath analyzer includes a light source, a gas cell, a detection unit and a data processing unit. The light source emits infrared light of a wavelength band including an absorption line for acetone. A breath containing sample gas is introduced to the gas cell. The infrared light is incident on the gas cell. The detection unit receives transmitted light emerging from the gas cell, and outputs a sample signal value corresponding to an acetone discharge amount. The data processing unit determines an approximation formula of dependence of fat oxidation rate on acetone discharge amount in advance, and calculates a fat oxidation rate for individual sample signal values using the approximation formula. When the acetone discharge amount (microliter/min) is x, the fat oxidation rate (milligram/min) y is approximated by a following formula: y=Ax+B (where A and B are constants).