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:
Oct. 10, 1989
Filed:
Dec. 10, 1986
Applicant:
Inventors:
Motohiro Satoh, Ibaraki, JP;
Toshihiro Yamada, Ibaraki, JP;
Akiomi Kohono, Ibaraki, JP;
Akihiko Yamamoto, Ibaraki, JP;
Keiji Taguchi, Ibaraki, JP;
Takahiro Daikoku, Ushiku, JP;
Fumiuki Kobayashi, Sagamihara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228121 ; 228124 ; 228187 ; 228194 ; 22826312 ;
Abstract
In a sealed structure consisting of ceramic members opposing each other and a frame coupled to the ceramic members and defining an He-tight chamber with the ceramic members, the melting point of a joint member for bonding one of the ceramic members to the frame is lower than the melting point of another joint member for bonding the other of the ceramic members to the frame so that rebonding can be made.