US Patent Issued to NORITAKE, NORITAKE COATED ABRASIVE on Oct. 27 for "Multilayer grindstone for gear grinding" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,743, issued on Oct. 27, was assigned to NORITAKE Co. Ltd. (Nagoya, Japan) and NORITAKE COATED ABRASIVE Co. LTD. (Nagoya, Japan).

"Multilayer grindstone for gear grinding" was invented by Takamasa Ishizawa (Nagoya, Japan), Yusuke Oura (Nagoya, Japan), Yuji Fujita (Nagoya, Japan) and Koshi Hashimoto (Miyoshi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gear-grinding multilayer grindstone includes a rough machining portion and a finish machining portion that are disposed adjacent to each other on a rotational axis. The rough machining portion includes a first core and a rough machining grindstone that is held on the first core. The finish ma...