US Patent 7404227 Cleaning sheet

Patent 7404227 was granted and assigned to Kao Corporation on July, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Kao Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74042270

Patent Inventor Names

Hiroyuki Yanagida0

Hiroshi Otsuka0

Date of Patent

July 29, 2008

Patent Application Number

105408830

Date Filed

October 27, 2003

Patent Primary Examiner

‌

Shay L. Karls

Patent abstract

A cleaning sheet adapted to be attached to the head (20) of a cleaning tool (2). The cleaning sheet has a wiping portion (1A) that is disposed on the bottom of the head (20) when the cleaning sheet is attached to the head (20). The cleaning sheet has projecting parts (10) and (11) in the wiping portion (1A) which stick out of the forward and backward edges of the head (20) by a projecting length M when the cleaning sheet is attached to the head (20). The projecting parts (10) and (11) have a repulsive force of 0.1 to 100 N/cm when deformed by a length M/3 in the direction opposite the projecting direction. The projection (10) preferably has pointed tips.