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:
Feb. 16, 2021
Filed:
Sep. 04, 2018
Advantest Corporation, Tokyo, JP;
Shinji Sugatani, Saitama, JP;
Shigeki Nishina, Saitama, JP;
Jun Matsumoto, Saitama, JP;
Masahiro Takizawa, Saitama, JP;
Minoru Soma, Saitama, JP;
Akio Yamada, Saitama, JP;
ADVANTEST CORPORATION, Tokyo, JP;
Abstract
Provided is a three-dimensional laminating and shaping apparatusincluding a column unitthat is configured to output an electron beam EB and deflect the electron beam EB toward the front surface of a powder layer, an electron detectorthat is configured to detect electrons that may be emitted in a predetermined direction from the front surface of the powder layerwhen the powder layeris irradiated with the electron beam EB, a melting judging unitthat is configured to generate a melting signal based on the strength of the detection signal from the electron detector, and a deflection controllerthat is configured to receive the melting signal to determine the condition of the irradiation the electron beam.