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:
Sep. 09, 2025
Filed:
Dec. 11, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Yujiro Tanaka, Tokyo, JP;
Masahito Nakamura, Tokyo, JP;
Daichi Matsunaga, Tokyo, JP;
Michiko Seyama, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A light emitting unit irradiates a measurement site of a measurement subject with a light beam having a wavelength that is absorbed by a measurement target substance. A detection unit detects a photoacoustic signal generated in the measurement site irradiated with the light beam emitted from the light emitting unit. A resonator is arranged so as to clamp the measurement site, and causes the above-described photoacoustic signal to resonate. The resonator is constituted by a first reflection unit and a second reflection unit. The first reflection unit is arranged between the light irradiation unit and the measurement site. Also, the light beam passes through the first reflection unit. The second reflection unit is arranged between the detection unit and the measurement site.