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. 18, 2010
Filed:
Aug. 27, 2008
Hisamitu Hatou, Hitachi, JP;
Noboru Saitou, Kasumigaura, JP;
Ren Morinaka, Takahagi, JP;
Tomohiko Motoki, Hitachinaka, JP;
Tadashi Iijima, Ryugasaki, JP;
Yuichi Koide, Hitachinaka, JP;
Jun Kashiwakura, Tokai, JP;
Hisamitu Hatou, Hitachi, JP;
Noboru Saitou, Kasumigaura, JP;
Ren Morinaka, Takahagi, JP;
Tomohiko Motoki, Hitachinaka, JP;
Tadashi Iijima, Ryugasaki, JP;
Yuichi Koide, Hitachinaka, JP;
Jun Kashiwakura, Tokai, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitachi-shi, JP;
Abstract
A method for executing water jet peening for giving an impact force to a surface of a structure member by a crushing pressure of a water jet and cavitation and improving residual stress, or washing, or reforming said surface, wherein said water jet peening is executed so as to make a natural frequency of oscillation of said structure member and a excitation frequency of oscillation of water jet peening different from each other.