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:
Dec. 14, 1982
Filed:
Dec. 16, 1980
Applicant:
Inventors:
Shizuo Tokunaga, Hyogo, JP;
Takushi Yamada, Hyogo, JP;
Kazuhisa Yabukawa, Himeji, JP;
Shigeyuki Kita, Hyogo, JP;
Tomoyoshi Yase, Tatsuno, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H03H / ; H03H / ;
U.S. Cl.
CPC ...
333194 ; 3103 / ; 333151 ;
Abstract
An elastic surface wave device comprises a piezoelectric substrate having an input electrode and an output electrode on the surface, said input and output electrodes being in comb shape and opposing each other; a sound absorbing resin layer formed on at least part of the bottom surface of said piezoelectric substrate; and an adhesive resin layer in contact with said sound absorbing resin layer and said piezoelectric substrate for adhering said piezoelectric substrate to a stem.