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. 01, 2000
Filed:
Jan. 27, 1998
Yasuharu Negi, Hamamatsu, JP;
Toshimitsu Nagai, Hamamatsu, JP;
Atsushi Kibune, Hamamatsu, JP;
Yutaka Hasegawa, Hamamatsu, JP;
Shigeru Ichikawa, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Norio Asakura, Hamamatsu, JP;
Motohiro Suyama, Hamamatsu, JP;
Hamamatsu Photonics K,K,, Shizuoka, JP;
Abstract
To provide an electron tube having good airtightness and being appropriate for mass production, indium affixed to the inner surface of a sealing metal support member is provided between a side tube and input faceplate. The input faceplate is pushed against the side tube. As a result, the indium is squeezed by a pressure receiving surface provided on the end face of the side tube. Since the pressure receiving surface is in a generally declining shape from the inside out, the force of the pressing surface causes the indium to flow outward toward the sealing metal support member. Therefore, the indium is firmly affixed to the pressure receiving surface, and the side tube and input faceplate can be reliably sealed by the indium.