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. 12, 2016
Filed:
Dec. 23, 2010
Akio Sayano, Yokohama, JP;
Masashi Takahashi, Yokohama, JP;
Masahiro Saito, Yokohama, JP;
Kazuyoshi Nakajima, Hiratsuka, JP;
Tadashi Tanuma, Yokohama, JP;
Satoru Asai, Chigasaki, JP;
Kenji Kamimura, Yokohama, JP;
Akio Sayano, Yokohama, JP;
Masashi Takahashi, Yokohama, JP;
Masahiro Saito, Yokohama, JP;
Kazuyoshi Nakajima, Hiratsuka, JP;
Tadashi Tanuma, Yokohama, JP;
Satoru Asai, Chigasaki, JP;
Kenji Kamimura, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
A steam turbineincludes: a turbine rotor; a rotor bladeimplanted to the turbine rotor; a stator bladeprovided at an upstream side of the rotor blade; and a turbine casingsupporting the stator bladeand including the turbine rotor, the rotor bladeand the stator blade, and have a constitution in which a stageis formed by a pair of the rotor bladeand the stator blade, and a steam passageis formed by arranging plural stagesin an axial direction of the turbine rotor. A surface treatment to suppress an increase of a surface roughness caused by oxidation is performed for at least a part of a surface of the stator bladeand a surface of the rotor blade