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:
May. 12, 2026
Filed:
Aug. 12, 2022
Sumida Corporation, Tokyo, JP;
Kyoto University, Kyoto, JP;
Izuru Ohki, Kyoto, JP;
Norikazu Mizuochi, Kyoto, JP;
Yoshiharu Yoshii, Miyagi, JP;
Tsunaki Kaneko, Miyagi, JP;
Akifumi Sako, Miyagi, JP;
SUMIDA CORPORATION, , JP;
Kyoto University, , JP;
Abstract
A nuclear magnetic resonance sensor applies a high frequency magnetic field based on an RF signal to a target and generates an observation signal with a frequency shifted from that of the RF signal by a frequency of an NMR signal. A mixer generates an IF demodulation signal including the NMR signal. A low-pass filter passes a low frequency component of the IF demodulation signal. In a digitizing device, a physical field generator generates a magnetic field corresponding to the IF demodulation signal passed through the low-pass filter, an optical quantum sensor generates light corresponding to the magnetic field by a sensing member and converts the light into a sensor signal by a photoelectric element, and an analog/digital converter digitizes the sensor signal. The optical quantum sensor performs a quantum operation on the sensing member and causes the sensing member to generate the light corresponding to the magnetic field.