US Patent Issued to KYOCERA on Aug. 4 for "Cordierite-based ceramic(s) and member for a telescope" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,239, issued on Aug. 4, was assigned to KYOCERA Corp. (Kyoto, Japan).

"Cordierite-based ceramic(s) and member for a telescope" was invented by Hiroshi Yoshimitsu (Kagoshima, Japan), Shuzo Iwashita (Kirishima, Japan) and Hirotsugu Nodake (Kirishima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cordierite-based ceramic(s) is provided where a main crystalline phase thereof is a cordierite crystalline phase, a content of Mg is 13.2% by mass or more and 13.8% by mass or less in an MgO equivalent, a content of Al is 26.0% by mass or more and 32.1% by mass or less in an Al2O3 equivalent, a content of Bi is 1.6% by mass or more and 4.6% by mass or l...