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:
Apr. 02, 2013
Filed:
Apr. 27, 2010
Kohei Suzuki, Kanagawa, JP;
Shinya Miyaji, Kanagawa, JP;
Shinji Saito, Kanagawa, JP;
Noriyoshi Kaneda, Kanagawa, JP;
Kohei Suzuki, Kanagawa, JP;
Shinya Miyaji, Kanagawa, JP;
Shinji Saito, Kanagawa, JP;
Noriyoshi Kaneda, Kanagawa, JP;
NHK Spring Co., Ltd., Yokohama-shi, JP;
Abstract
Provided are a ceramic member being a sintered body including at least forsterite and boron nitride as major components, and in which the boron nitride is oriented in one direction, a probe holder formed by using the ceramic member, and a method for manufacturing the ceramic member. In the ceramic member, the index of orientation preference is equal to or lower than 0.07, and the coefficient of thermal expansion at 20 to 300° C. in a direction parallel to the direction of orientation is (3 to 5)×10/° C., or the three-point bending strength based on JIS R 1601 is equal to or higher than 250 MPa.