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Title:
SHUTTLECOCK
Document Type and Number:
Japanese Patent JP2003284800
Kind Code:
A
Abstract:

To provide a shuttlecock which has no fluctuation in the flying distance and direction at the hitting and has always stable flying characteristics and which is biodegraded in the course of time even if abandoned after completing the use life, and does not adversely affect the natural environment.

This is a shuttlecock that is made of a skirt part 4 constructed of feathers 3 (14 pieces-16 pieces) of a natural water bird or a land bird or the like and a base unit 2a of a nearly semispherical shape. The base unit 2a is constructed of a biodegradable foam resin in which Degranovon (R) (made by Novon Japan) 20 parts weight as a biodegradable content is mixed in low density polyethylene 80 parts weight.


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Inventors:
TONOMURA TAKASHI
KAWAGUCHI HIDETOSHI
TAKENAKA TOSHIMASA
Application Number:
JP2002090104A
Publication Date:
October 07, 2003
Filing Date:
March 28, 2002
Export Citation:
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Assignee:
MIZUNO KK
International Classes:
A63B67/187; (IPC1-7): A63B67/18
Domestic Patent References:
JPH0425830B21992-05-01
JP2002069208A2002-03-08
JP2001198940A2001-07-24
JPH11279311A1999-10-12
JPH1157096A1999-03-02
JP2002079545A2002-03-19



 
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