ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,434, issued on April 8, was assigned to Nabtesco Corp. (Tokyo).

"Bearing, strain wave gear device, and industrial robot" was invented by Yuichi Asakawa (Tokyo) and Takafumi Ito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the present disclosure provides a first bearing including an inner ring, an outer ring, and cylindrical rollers. The inner ring includes: an insertion groove formed in a lower surface for inserting the cylindrical rollers between an inner raceway surface and an outer raceway surface; a blocking plug configured to block the insertion groove, the blocking plug having a part of the inner raceway surface formed t...