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:
Apr. 23, 2013
Filed:
Oct. 09, 2008
Applicants:
Takeshi Tsukamoto, Hitachinaka, JP;
Yoshihisa Maeda, Tsuchiura, JP;
Hiromi Kobayashi, Kasumigaura, JP;
Hideto Nogiwa, Tsukuba, JP;
Tetsuya Kuwano, Tsuchiura, JP;
Ryujiro Udo, Ushiku, JP;
Masaaki Iwasa, Hitachinaka, JP;
Inventors:
Takeshi Tsukamoto, Hitachinaka, JP;
Yoshihisa Maeda, Tsuchiura, JP;
Hiromi Kobayashi, Kasumigaura, JP;
Hideto Nogiwa, Tsukuba, JP;
Tetsuya Kuwano, Tsuchiura, JP;
Ryujiro Udo, Ushiku, JP;
Masaaki Iwasa, Hitachinaka, JP;
Assignee:
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 26/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A welding method for an impeller having a plurality of blades, a disc and an exterior body including a shroud welded to the plurality of blades, comprising the steps of: