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:
Jun. 11, 2024
Filed:
Sep. 03, 2018
Ihi Corporation, Tokyo, JP;
Yuichiro Nakayama, Tokyo, JP;
Daiki Hayashi, Tokyo, JP;
IHI CORPORATION, Tokyo, JP;
Abstract
A three-dimensional shaping device shapes a three-dimensional article by irradiating a powder material with an electron beam and melting the powder material. The three-dimensional shaping device includes an electron beam emitting unit emitting the electron beam, melting the powder material in order to shape the article, and performing preliminary heating of the powder material by irradiating the powder material with the electron beam before the article is shaped. The electron beam emitting unit moves an irradiation position of the electron beam in a spiral pattern when the powder material is irradiated with the electron beam for preliminary heating.