US Patent Issued to TOYOTA BOSHOKU on Dec. 16 for "Multi-stage helical gear manufacturing apparatus and multi-stage helical gear manufacturing method" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,758, issued on Dec. 16, was assigned to TOYOTA BOSHOKU K.K. (Aichi-ken, Japan).

"Multi-stage helical gear manufacturing apparatus and multi-stage helical gear manufacturing method" was invented by Yuki Wakimoto (Nagoya, Japan), Yuta Sakaguchi (Konan, Japan) and Rikiya Suenaga (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-stage helical gear manufacturing apparatus includes a first mold member, a second mold member, a large gear rotation core, a sleeve pin, a small gear rotation insert, and an insert pin. The second mold member moves the insert pin and the small gear rotation insert after the insert pin is caused to retreat in ...