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. 21, 2019
Filed:
Mar. 14, 2017
Nagoya Institute of Technology, Nagoya-shi, Aichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Dmg Mori Co., Ltd., Yamatokoriyama-shi, Nara, JP;
Mitsubishi Heavy Industries Aero Engines, Ltd., Aichi, JP;
Makoto Yamasaki, Tokyo, JP;
Shiro Nagami, Tokyo, JP;
Junichi Marui, Tokyo, JP;
Yoshiki Nishioka, Tokyo, JP;
Fumihiro Itoigawa, Nagoya, JP;
Kiichi Meguro, Tokyo, JP;
Yohei Oda, Yamatokoriyama, JP;
NAGOYA INSTITUTE OF TECHNOLGY, Aichi, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-Shi, JP;
DMG MORI CO., LTD., Nara, JP;
Mitsubishi Heavy Industries Aero Engines, Ltd., Aichi, JP;
Abstract
A shaft portion and a blade portion provided on a side surface of the shaft portion are included, and the blade portion includes cutting blades arranged in a plurality of lines on a side surface of the shaft portion along a peripheral direction, and arranged in a plurality of stages in an extending direction of a shaft center of the shaft portion in each line. Further, the cutting blade has a radial-direction clearance angle, a tip end-side clearance angle, and a base end-side clearance angle.