US Patent Issued to Sintokogio on Jan. 13 for "Hollow structure, bearing member, and method for producing hollow structure" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,254, issued on Jan. 13, was assigned to Sintokogio Ltd. (Aichi, Japan).

"Hollow structure, bearing member, and method for producing hollow structure" was invented by Norihiro Asano (Nagoya, Japan) and Norihito Fujiwara (Toyokawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow structure is formed from ceramic. The hollow structure includes a main body part and a reinforcing part. The main body part has a spherical outer peripheral surface, and inside the main body part, a hollow is formed. The reinforcing part is formed integrally with the main body part on an inner peripheral surface of the main body part and reinforces the main body ...