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:
Jun. 09, 2026
Filed:
Jun. 13, 2025
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Masaki Sato, Yokohama, JP;
Ryuichi Ishii, Tokyo, JP;
Hironori Nabeshima, Kawasaki, JP;
Kenji Nagayama, Yokohama, JP;
Kazuya Shirato, Yokohama, JP;
Yoshihiro Sato, Kawasaki, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
A turbine rotor of an embodiment includes: a fixing groove formed in a circumferential direction in an outer peripheral surface; and a seal fin fixed by a fixing member in the fixing groove. The seal fin is constituted of a first seal fin divided structure, a second seal fin divided structure, and a third seal fin divided structure, in which it is divided into three in the circumferential direction, and a length in the circumferential direction of the third seal fin divided structure which is fixed in the fixing groove last is shorter than lengths in the circumferential direction of the others of the seal fin divided structures.