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:
Oct. 25, 2016
Filed:
Mar. 28, 2014
Teruo Sawabe, Miyagi, JP;
Koji Saito, Akita, JP;
Masaru Kato, Akita, JP;
MIYAGITANOI CO., LTD., Katta-gun, Miyagi, JP;
AKITA PREFECTURE, Akita-shi, Akita, JP;
Abstract
A drill capable of performing high-quality drilling machining on a material which is hard to be cut such as CFRP is provided. The drill includes a drill bodyhaving a shank portionat a rear side of the drill main body and a cutting portionat a front side of the drill main body, a first land A to a fourth land D at the cutting portion, a first cutting portion grooveto a fourth cutting portion grooveprovided between the lands of the first land A to the fourth land D, a pilot bladeformed at the tip of the cutting portion, a diameter-enlarging spiral thread portioncontinuously following the pilot blade, a finished spiral thread portioncontinuously following the diameter-enlarging spiral thread portion, a diameter-enlarging spiral blade portion, and a finishing spiral blade portion
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile