Title:
The ball for ball games
Document Type and Number:
Japanese Patent JP5966271
Kind Code:
B2
Abstract:
A hard baseball ball is configured including a core layer, an intermediate layer, and the cover layer. The intermediate layer is formed on a spherical body by winding yarn having radio wave transmissivity, which allows radio waves to pass through, in a spherical shape around the core layer. The cover layer covers the intermediate layer, and is formed from a material with radio wave transmissivity. The hard baseball ball also includes the reflecting portion. The reflecting portion is formed on a spherical surface whose center is the center of the spherical body, and has radio wave reflectability. The reflecting portion is configured using yarn from which the intermediate layer is formed. At least a portion of the yarn from which the intermediate layer is formed is given radio wave reflectability, and the reflecting portion is configured from the portion of the yarn that has been given radio wave reflectability.
Inventors:
Hiroshi Saegusa
Takeshi Kitazaki
Takeshi Kitazaki
Application Number:
JP2011164688A
Publication Date:
August 10, 2016
Filing Date:
July 27, 2011
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
A63B43/00; A63B39/00
Domestic Patent References:
| JP57130655U | ||||
| JP2011143096A |
Foreign References:
| WO2011074247A1 |
Attorney, Agent or Firm:
Shigeru Noda