Title:
TITANIUM-NICKEL ALLOY, METHOD FOR MODIFYING TITANIUM-NICKEL ALLOY SURFACE, BIOCOMPATIBLE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2007/018189
Kind Code:
A1
Abstract:
Disclosed is a titanium-nickel alloy having improved corrosion resistance wherein
the Ni content is lower in the surface layer. A film (modified layer) wherein the
Ni concentration is extremely lower than that in the inner portion of the alloy is
formed over the surface of a titanium-nickel alloy by performing electrolysis while
adequately controlling the electrolytic solution, thereby improving the corrosion
resistance of the alloy. Specific examples of the electrolytic solution may
include a mixture of glycerol, lactic acid and water (H2O).
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Inventors:
YONEYAMA TAKAYUKI (JP)
FUKUSHIMA OSAMU (JP)
HANAWA TAKAO (JP)
DOI HISASHI (JP)
FUKUSHIMA OSAMU (JP)
HANAWA TAKAO (JP)
DOI HISASHI (JP)
Application Number:
PCT/JP2006/315616
Publication Date:
February 15, 2007
Filing Date:
August 08, 2006
Export Citation:
Assignee:
NAT UNIV CORP TOKYO MED & DENT (JP)
YONEYAMA TAKAYUKI (JP)
FUKUSHIMA OSAMU (JP)
HANAWA TAKAO (JP)
DOI HISASHI (JP)
YONEYAMA TAKAYUKI (JP)
FUKUSHIMA OSAMU (JP)
HANAWA TAKAO (JP)
DOI HISASHI (JP)
International Classes:
C25D11/26; A61C5/02; A61C7/20; A61F2/82; A61L29/00; C22C19/03; A61M25/00
Foreign References:
| US20040117001A1 | 2004-06-17 | |||
| US20050060021A1 | 2005-03-17 | |||
| JP2002129387A | 2002-05-09 | |||
| JP2001226782A | 2001-08-21 | |||
| JPH06192887A | 1994-07-12 | |||
| JPS6184361A | 1986-04-28 | |||
| JPH0813068A | 1996-01-16 |
Attorney, Agent or Firm:
KOYAMA, Yuu (Furuya Bldg. 3-29, Kioicho, Chiyoda-k, Tokyo 94, JP)
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