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:
Mar. 25, 1997
Filed:
Jun. 06, 1995
Applicant:
Inventors:
Kazuo Saiuchi, Otsu, JP;
Minoru Kohara, Otoguni-gun, JP;
Kunikazu Yamada, Kurita-gun, JP;
Kazuhiko Kanki, Uji, JP;
Assignee:
Sekisui Fine Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; B32B / ; H01B / ;
U.S. Cl.
CPC ...
349149 ; 428403 ; 349155 ;
Abstract
A conductive fine sphere with a K-value and a recovery factor in a predetermined range is provided. Suppose a load value (kgf) is F, a compression displacement (mm) is S, and a radius (mm) is R at 10% compression deformation of this spacer, a K-value defined as the following equation is in the range of 250 kgf/mm.sup.2 to 700 kgf/mm.sup.2 at 20.degree. C., and a recovery factor after the compression deformation is in the range of 30% to 80% at 20.degree. C., and ##EQU1##