Inventor

YAMADA KENYA

JP3 patents

Patents

3 patents

US7160073B2Jan 9, 2007

Tapping screw

AOYAMA SEISAKUSHO27 citations88

US9022710B2May 5, 2015

Anti-seizing nut

AOYAMA SEISAKUSHO2 citations58

US9664223B2May 30, 2017

Seizure prevention bolt

AOYAMA SEISAKUSHO1 citations48