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. 15, 2001
Filed:
Feb. 24, 1999
Masanori Ikari, Annaka, JP;
Masayuki Tanno, Annaka, JP;
Toshihiko Ryuo, Annaka, JP;
Takao Kuki, Tokyo, JP;
Toshihiro Nomoto, Tokyo, JP;
Other;
Abstract
A magnetostatic wave device includes a Gd,Ga,O,substrate off-angled from a {110} plane. A magnetic thin film including a crystal of garnet is formed on the Gd,Ga,O,substrate by liquid-phase epitaxy. A transducer operates for exciting magnetostatic wave in the magnetic thin film in response to an RF electric signal. A bias magnetic field is applied to the magnetic thin film. There is a relation as 20°≦|&thgr;,+&thgr;,|≦35°, where “&thgr;,” denotes an angle between a longitudinal direction of the transducer and a <001> orientation of the crystal in the magnetic thin film, and “&thgr;,” denotes an angle between a transverse direction of the transducer and a specified direction. The specified direction is parallel to a line of intersection between a horizontal plane of the magnetic thin film and a given plane which is perpendicular to the horizontal plane of the magnetic thin film and which contains a direction of the bias magnetic field. Also, there is a relation as |&thgr;,|≦75°, where “&thgr;,” denotes an angle between the specified direction and the direction of the bias magnetic field.