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:
Dec. 25, 2001
Filed:
Nov. 05, 1999
Toshio Ishii, Saitama-ken, JP;
Masayuki Gonda, Saitama-ken, JP;
Hiroshi Ueda, Chiba-ken, JP;
Shirou Okayama, Chiba-ken, JP;
Nobuhiko Shima, Chiba-ken, JP;
Other;
Abstract
An aluminum oxde-coated article has a first coating layer and a second coating layer formed in this order on a substrate, the first coating layer having a single- or multi-layer structure and being made of at least one selected from the group consisting of carbides, nitrides, carbonitrides, oxides, oxycarbides, oxynitrides and oxycarbonitrides of metals in Groups IVa, Va and VIa of the Periodic Table, and the second coating layer being constituted by at least one &agr;-aluminum oxide-based oxide layer, which has an equivalent X-ray diffraction peak ratio PR (1 0 10) of 1.3 or more in a (1 0 10) plane.