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:
Nov. 02, 2004
Filed:
Sep. 29, 2000
Hidetoshi Saito, Nagaoka, JP;
Minoru Sato, Nagaoka, JP;
Yoshikazu Ueda, Nagaoka, JP;
Hideo Kinoshita, Yokohama, JP;
Asahi Kasai Chemicals Corporation, Tokyo, JP;
Abstract
Disclosed is a functional element for use in an electric, an electronic or an optical device, and a method for producing the same. The functional element comprises a substrate having on an upper surface thereof a plurality of metal oxide needles extending upwardly of the upper surface of the substrate, with their respective central axes arranged substantially in parallel with each other, wherein the needles have a specific average circle-based diameter and a specific average aspect ratio, and wherein the needles are present at a specific density at the upper surface of the substrate. Also disclosed is a method for producing the functional element, which comprises gasifying a metal compound having the capability to react with an oxide-forming substance to form a metal oxide, to thereby obtain a metal compound gas, and applying the obtained metal compound gas onto a surface of a substrate which is placed in a reaction zone containing the oxide-forming substance and which is heated to a temperature higher than the temperature of the metal compound gas.