Minebea Company, Limited

Chatree Sitalasai

Toshisada Takeda

Charles L Fauble

James E Thompson

Richard Acosta

Bryan Kyuseo Kang

Robert Henry Dickerman, Jr

Maureen Joy George

Casey Peterson

Multi-curve keypad

An apparatus for a hinged key switch is presented which operates around a hinged pivot point located external to the four points of the key cap, and which comprises a rubber spring providing a vertical bias and an arm with an extension which acts as a stopper when it abuts a raised portion of the mounting plate. The rubber spring is integrally formed from a rubber sheet which is supported on one side by the mounting plate and on the other by the back plate. The stopper extends vertically downward from the key cap and acts to limit the movement of the key in the vertical direction. A horizontal extension from a lower portion of the key cap further extends downward and through a slot in the mounting plate and has a hook which abuts an underside of the mounting plate, such extension from the key cap acting as the pivot point around which the key rotates.

Hinge key switch

A portable foldable keyboard comprised of two housings, each of which contains a key assembly, and a central hinge. The two housings can be slid together when the keyboard is unfolded and they interlock to form a sturdy keyboard having the standard QWERTY keyswitch layout.

Foldable keyboard

Information input device with multiple memory card reader

Input device memory card reader

Growing community of inventors

La Crescenta, CA, United States of America

Chatree Sitalasai