Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RACKET STRING AND RACKET
Document Type and Number:
WIPO Patent Application WO/2021/210292
Kind Code:
A1
Abstract:
The present invention provides a relatively thin racket string having both good tensile fracture elongation and tensile fracture strength, and a racket having said string. The racket string is provided with a synthetic resin core thread, and a side thread which contains metal and is sparsely wound in a spiral around the outer circumference of the core thread.

Inventors:
YAMASAKI SADANORI (JP)
SHIMIZU FUMIYA (JP)
SATO KAZUO (JP)
Application Number:
PCT/JP2021/008867
Publication Date:
October 21, 2021
Filing Date:
March 08, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ASAHI INTECC CO LTD (JP)
International Classes:
A63B49/00; A63B51/02; A63B102/04
Domestic Patent References:
WO2000039374A12000-07-06
Foreign References:
JPS5215301Y21977-04-06
JPH0722764U1995-04-25
CN201453981U2010-05-12
JPS56501788A1981-12-10
JPH0187774U1989-06-09
JPS54179272U1979-12-18
CN110846759A2020-02-28
Attorney, Agent or Firm:
ALPHA INTERNATIONAL PATENT FIRM (JP)
Download PDF: