Title:
ボール
Document Type and Number:
Japanese Patent JP4824042
Kind Code:
B2
Abstract:
The present invention provides a sports implement whose characteristics a user can adjust freely and minutely. According to the present invention, it is realized that a light-weight high functional circuit is installed in various sports implements by constituting various functional circuits with a TFT formed on a film, without using a printed board. A high functional circuit using a TFT formed over a flexible plastic film is light-weight and strong in bending and impacts. It is possible to provide a sports implement that is favorable in operationality and friendly to many users in a wide range regardless of the muscle strength or physical constitution and the like of a user, since the user can adjust characteristics of a sports implement.
Inventors:
Hideaki Kuwahara
Application Number:
JP2008008771A
Publication Date:
November 24, 2011
Filing Date:
January 18, 2008
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
A63B43/06; A43B5/00; A43B23/24; A63B43/00; A63B49/02; A63B53/14; A63B69/00; A63B71/14; A63C5/00; A63C5/075; A63C5/12; G02F1/13; H01L27/12; H05B33/02; H05B33/14; A63B102/02; H01L27/20
Domestic Patent References:
| JP2001204507A | ||||
| JP2003224366A | ||||
| JP3058122U | ||||
| JP200416451A |