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:
Jun. 14, 2005
Filed:
Feb. 20, 2002
Hitoshi Ohsato, Tenpaku-ku, Nagoya-city, Aichi 468-0021, JP;
Akio Harada, Osaka, JP;
Takashi Okawa, Osaka, JP;
Hiroki Okabe, Osaka, JP;
Hitoshi Ohsato, Tenpaku-ku, Nagoya-city, Aichi 468-0021, JP;
Akio Harada, Osaka, JP;
Takashi Okawa, Osaka, JP;
Hiroki Okabe, Osaka, JP;
Other;
Daiken Chemical Co., Ltd., Osaka, JP;
Abstract
A first inventive microwave dielectric composition comprises a ceramic composition represented by ARTiO, where a is an alkaline earth metal element, R is a rare earth element and characterized in that a case satisfying A=Ba and a case of R=La is excluded and the compositional ratio n=1,2 or 4. A second inventive microwave dielectric composition comprises a ceramic composition represented by ARTiO, where A is an alkaline earth metal element, R is a rare earth element and characterized in that the compositional ratio X is within a range of 0.5<X<5 (excluding X=1,2, 4). A variety of small microwave dielectric resonators having excellent transmitting/receiving characters can be mass produced inexpensively from that composition.