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:
May. 21, 1991
Filed:
Apr. 14, 1989
Applicant:
Inventors:
Kunio Suzuki, Shizuoka, JP;
Kenji Takeuchi, Shizuoka, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ; G21K / ; B23P / ; B23P / ;
U.S. Cl.
CPC ...
148 / ; 295272 ; 295277 ; 2505051 ;
Abstract
A method for fabricating a beryllium or a beryllium alloy thin plate member for uses requiring great mechanical strength, such as X-ray aligners. A beryllium or a beryllium alloy is deposited on a base structure, and the base structure is then etched away to leave the thin film. However, bubbles or hollow spaces form in the thin film during the deposition stage. The thin film is shaped by using hot rolling, thereby improving the density and accordingly the mechanical strength.