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:
Oct. 07, 2025
Filed:
Feb. 25, 2019
Otsuka Electronics Co., Ltd., Hirakata, JP;
Shinpei Kajiwara, Hirakata, JP;
Fumito Kikuchi, Hirakata, JP;
OTSUKA ELECTRONICS CO., LTD., Hirakata, JP;
Abstract
A photodynamic therapy device of this disclosure includes: a light emitting unit () including light sources () each belonging to any one of groups; a photodetector (X,Y) configured to output an electrical signal corresponding to an amount of light received from the light sources (); a light emission control unit () configured to sequentially cause the light sources () to emit light for each group; and a computing unit () configured to calculate, based on a distance coefficient related to a distance between the photodetector (X,Y) and the light sources () belonging to the each group, and on a value of the electrical signal output by the photodetector (X,Y) in accordance with light emitted from the light sources belonging to the corresponding group, a group light amount value related to a light amount of the light sources belonging to the each group.