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:
Mar. 10, 2020
Filed:
Nov. 16, 2017
National University Corporation Yokohama National University, Yokohama-shi, Kanagawa, JP;
Nhk Spring Co., Ltd., Yokohama-shi, Kanagawa, JP;
Wataru Nakao, Yokohama, JP;
Akira Tange, Yokohama, JP;
Koichi Tango, Koka, JP;
Morimichi Kai, Yokohama, JP;
NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, Kanagawa, JP;
NHK SPRING CO., LTD, Kanagawa, JP;
Abstract
A carburization device includes a heating furnace which heats a material, a transfer mechanism, an alcohol vapor generator, an alcohol vapor spraying portion, a quenching tank, and an exhaust heat intake tube. The transfer mechanism moves a plurality of materials. The alcohol vapor generator uses part of heat generated by the heating furnace as a heat source. As the alcohol vapor spraying portion repeats a vapor spraying step and a diffusion step a plurality of times in the heating furnace. In the vapor spraying step, by spraying alcohol vapor on the material which moves inside the heating furnace, carbon in the alcohol is adsorbed to the material. In the diffusion step, an interval for diffusing the carbon adsorbed to the material is taken.