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:
Jun. 03, 2003
Filed:
Nov. 20, 2000
Applicant:
Inventor:
Kazushige Ebe, Kanagawa, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C 7/18 ;
U.S. Cl.
CPC ...
A47C 7/18 ;
Abstract
A seat cushion is formed of a lower body and an upper body. The lower body is made of a polyurethane chip molded product containing fibrillated polyurethane chips with radial projections and a binder for binding the fibrillated polyurethane chips. The polyurethane chip molded product has 25 percent ILD hardness of 1,000 to 5,000 N and a density of 150 to 300 kg/M . The upper body is made of soft polyurethane foam molded on the lower body. The upper body has 25 percent ILD hardness of 60 to 300 N and a density of 20 to 80 kg/M .