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. 23, 2023
Filed:
Oct. 06, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Toyoda Gosei Co., Ltd., Aichi, JP;
Taizo Masuda, Yokohama, JP;
Kenichi Okumura, Gotemba, JP;
Ryota Tomizawa, Toyota, JP;
Atsuki Yoshimura, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
TOYODA GOSEI CO., LTD., Kiyosu, JP;
Abstract
In an apparatus producing hydrogen gas by the decomposition reaction of water using photocatalyst, its miniaturization is achieved while suppressing the decrease of production efficiency of hydrogen gas as low as possible or improving the efficiency. The apparatuscomprises a container portionreceiving water W; a photocatalyst memberimmersed in the water, having photocatalyst which generates excited electrons and positive holes when irradiated with light, causes a decomposition reaction of the water and generates hydrogen gas; a light sourceemitting the light irradiated to the photocatalyst member; and a heat exchange deviceconducting waste heat of the light source to the water in the container portion; wherein the water to be decomposed on the photocatalyst member in the container portion is warmed by the waste heat of the light source by the heat exchange device.