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. 06, 1992
Filed:
Feb. 18, 1992
Applicant:
Inventors:
Yasuharu Hakamatsuka, Akishima, JP;
Hiroyuki Irie, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 16 ;
Abstract
A prosthetic artificial bone having a double-layered structure obtained by forming a high porosity portion having a porosity of from 40 to 90% and a lower porosity portion having a porosity of 50% or less, into an integral body, and wherein the high porosity portion and the lower porosity portion each comprise a ceramics containing calcium and phosphorus.