Biomagnetism measuring device and method for controlling biomagnetism measuring device
Summary
The USPTO granted Patent US12588847B2 to Shimadzu Corporation on March 31, 2026, covering a biomagnetism measuring device and control method. The invention uses first and second magnetic sensors with optical pumping action via plasma-generated cells, with staggered plasma generation controlled by a power supply controller. The patent contains 6 claims.
What changed
USPTO granted Patent US12588847B2 to Shimadzu Corporation for a biomagnetism measuring device featuring dual magnetic sensors that detect biomagnetism using optical pumping action generated by plasma in internal cell spaces. The device includes a plasma generator and power supply controller that staggers plasma generation timing between the first and second sensors to improve measurement accuracy.
This is a patent grant notice with no compliance obligations. Patent holders may choose to enforce their intellectual property rights against infringers. Medical device manufacturers developing similar biomagnetism or magnetoencephalography technology should review the patent claims for potential licensing considerations or freedom-to-operate analysis.
Archived snapshot
Mar 31, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Biomagnetism measuring device and method for controlling biomagnetism measuring device
Grant US12588847B2 Kind: B2 Mar 31, 2026
Assignee
SHIMADZU CORPORATION
Inventors
Kei Shinada
Abstract
Provided are a biomagnetic measuring device and a control method for a biomagnetic measuring device that can measure biomagnetism more accurately. A biomagnetic measuring device according to the present invention includes: a first magnetic sensor and a second magnetic sensor that each include a cell having an internal space, and detect biomagnetism utilizing an optical pumping action by plasma generated in the cell; a plasma generator that supplies electric power for generating plasma in the internal space of each of the cells included in the first magnetic sensor and the second magnetic sensor; and a power supply controller that controls the plasma generator to generate plasma in the first magnetic sensor from a first start time to a first end time and generate plasma in the second magnetic sensor from a second start time after the first start time to a second end time after the first end time.
CPC Classifications
A61B 5/242 A61B 5/7271 A61B 5/243 A61B 5/245 A61B 5/00 A61B 2560/0214 A61B 2562/0223 G01R 33/26
Filing Date
2022-10-28
Application No.
18723353
Claims
6
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