Title:
遊戯用ボール
Document Type and Number:
Japanese Patent JP5142366
Kind Code:
B2
Abstract:
The invention provides a game ball, useful for children's safety, which can be detected far enough away a distance by a vehicle-onboard radar. The invention provides a game ball wherein a reflector member 12 is disposed within a spherical shell 13, the diagonal distance of the reflector member coincides with the inner diameter of the spherical shell, the reflector member has a shape constructed by combining three regular polygon plates 11A, 11B, 11C, the center angle of one side thereof being an integral submultiple of 90°, in such a manner that the centers of the three regular polygon plates are coincident and that the three regular polygon plates are perpendicular to each other, and a surface of said reflector member 12 is imparted with electromagnetic wave reflectivity.
Inventors:
Takehiko Kobayashi
Hironobu Yamamoto
Takehiko Nishide
Hironobu Yamamoto
Takehiko Nishide
Application Number:
JP2007283385A
Publication Date:
February 13, 2013
Filing Date:
October 31, 2007
Export Citation:
Assignee:
Tokyo Denki University
International Classes:
A63B43/00; A63B37/00
Domestic Patent References:
| JP2001518242A | ||||
| JP2007129420A | ||||
| JP2000280980A | ||||
| JP62122665U | ||||
| JP2006081912A |
Foreign References:
| US5912700 |
Attorney, Agent or Firm:
Hidekazu Miyoshi