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:
Nov. 03, 1992
Filed:
Feb. 27, 1991
Applicant:
Inventors:
Kunio Suzuki, Shizuoka, JP;
Nobuaki Tomita, Shizuoka, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21K / ;
U.S. Cl.
CPC ...
378161 ; 378140 ; 228194 ;
Abstract
A beryllium window comprises a disk-shaped beryllium plate containing beryllium as an essential element, a welding film partially merged into the outer peripheral portion of the beryllium plate and formed of a substance having at least one element selected from the group consisting of silver, gold, nickel and copper, and a reinforcing unit of a stainless steel, and the welding film is partially merged into the reinforcing unit, wherein the welding film fixes the beryllium plate to the reinforcing unit through diffusion welding so that the beryllium window is less deformative against heat stress.