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:
Jan. 08, 1991
Filed:
May. 30, 1989
Masahiro Yoneda, Hyogo, JP;
Masahiro Hatanaka, Hyogo, JP;
Yoshio Kohno, Hyogo, JP;
Shinichi Satoh, Hyogo, JP;
Hidekazu Oda, Hyogo, JP;
Koichi Moriizumi, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A dynamic type semiconductor device comprises a memory cell array including a plurality of cell groups, each of the cell groups including four adjacent memory cells disposed in a point symmetry fashion, with a single contact hole formed at the center of the point symmetry to be common to the four memory cells, in which the four memory cells and bit lines are connected through the single contact hole.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile