Alps Electric Co., Ltd.

Naoya Akiyama

Naoyuki Hatano

Hideaki Nagakubo

Kazutoshi Watanabe

Naoki Yamada

Koichi Yamamoto

Keiji Takagi

Katsuyuki Katayama

Shinichiro Kimura

Takenobu Kimura

Masahiro Ishida

Toshinobu Hosaka

Naomi Sato

An input device includes a plurality of manipulation portions; an input function portion manipulated by the manipulation portions to perform an input function; a light guiding sheet facing the rear side of the plurality of manipulation portions; and a light source applying light into the light guiding sheet, wherein a rear surface opposite to a front surface of the light guiding sheet facing the manipulation portions is provided with a plurality of concave portions which is depressed to the inside of the light guiding sheet, wherein each concave portion has a circular opening and an inner surface which is a smooth concave curve surface, and wherein light propagated through the inside of the light guiding sheet is reflected by the inner surface toward the inside of the light guiding sheet, and the light is applied from the front surface of the light guiding sheet to the manipulation portions.

Input device and keyboard device having illumination function

A USB-compliant keyboard device is provided that is capable of preventing malfunctions, operation failure and the like due to static noise by a simple method. The keyboard device has a keyboard main body with a large number of key tops on its upper surface, an upper case and a lower case accommodating the keyboard main body, a control circuit board on which a control circuit to control the keyboard main body is mounted, and USB connectors connected to the control circuit board. Further, a shield plate covering the control circuit board from a lower position is provided. The shield plate is electrically connected to frame ground members of the USB connectors and a shield line of a cable connected to a personal computer main body.

Keyboard device having terminal connectable to peripheral device

Growing community of inventors

Fukushima-ken, Japan

Naoya Akiyama