Patents by Inventor Atsushi Haseyama

Atsushi Haseyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Luminous key top
    Patent number: 5404133
    Abstract: A luminous key top having display sections comprises: a display member having a plurality of protrusions corresponding to the respective external configurations of the display sections and formed of a transparent or a translucent synthetic resin; an external member consisting of an opaque synthetic resin and formed integrally on the display member except for the respective top surfaces of the protrusions; first light-transmitting color layers formed by printing on the respective top surfaces of the protrusions; and second light-transmitting color layers formed by printing on the first light-transmitting color layers.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: April 4, 1995
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tatsuya Moriike, Atsushi Haseyama