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:
Aug. 29, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Kiyoshi Yamakawa, Miyamachi, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
341 22 ; 341 23 ; 341 33 ; 341 34 ;
Abstract
Disclosed is an input device or keyboard for inputting into an electronic appliance, comprising stroke keys and touch keys disposed on a common circuit matrix of a flexible printed circuit board. Preferably, data inputting keys such as character keys are composed of stroke keys and function keys for inputting command signals are composed of touch keys. In order to judge precisely ON/OFF actions of stroke keys and touch keys, key scanning control applied commonly to these keys is provided.
Yamakawa, Kiyoshi. (1989). Combination keyboard including plural stroke keys and plural touch keys (U.S. Patent No. 4862166). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4862166
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile