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.

Date of Patent:
Sep. 26, 2006

Filed:

Feb. 28, 2003
Applicants:

Itsurou Tajima, Ibaraki-ken, JP;

Naokata Seki, Ibaraki-ken, JP;

Kazuo Yamamoto, Ibaraki-ken, JP;

Inventors:

Itsurou Tajima, Ibaraki-ken, JP;

Naokata Seki, Ibaraki-ken, JP;

Kazuo Yamamoto, Ibaraki-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 29/16 (2006.01); C04B 35/583 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cutting insert exhibiting excellent chipping resistance made of cubic boron nitride based ultra-high pressure sintered material. The cutting insert made of cubic boron nitride based ultra-high pressure sintered material exhibits, in a structural observation using an electron microscope, a substantial three-phase structure including a continuously bonded phase, a hard dispersed phase, and an intermediate adhesion phase intervening between the continuously bonded phase and the hard dispersed phase, and includes a cubic boron nitride based ultra-high pressure sintered material including: 15 to 56 wt % of at least two components selected from titanium nitride, titanium carbonitride, and titanium carbide, or 15 to 56 wt % titanium carbonitride, for forming the continuously bonded phase; 2 to 10 wt % nitride compound having titanium and aluminum and 2 to 10 wt % tungsten carbide, for forming the intermediate adhesion phase; and (35 to 65 wt %) cubic boron nitride, as the balance, for forming the hard dispersed phase.


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Tajima, Itsurou. (2006). Cubic boron nitride base ultra-high pressure sintered material cutting tip (U.S. Patent No. 7112235). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7112235

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