The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 1989
Filed:
Aug. 02, 1988
Koji Sugiura, Tokyo, JP;
Takaya Ibe, Tokyo, JP;
Kabushiki Kaisha Bandai, , JP;
Abstract
A keyboard including a plurality of key switches and a plurality of keys mounted slidably on the keyboard over the key switches, each key overlying one of the key switches and the top of each key provided with a marking, upon each key being depressed into engagement with the underlying key switch, the key switch being operated to provide an indication of the marking provided on the top of the depressed key, and the number of plurality of keys being less in number by one than that of the key switches to provide a vacant key space on the keyboard to allow the keys to slide freely two-dimensionally over the key switches and through the vacent key space to permit each key to be slid over and overlie each of the key switches in a pattern as desired.