Inventor
MASUI KEIICHIRO
JP5 patents
Patents
5 patentsUS11725685B2Aug 15, 2023
Caulking bolt
AOYAMA SEISAKUSHO2 citations69
US11878380B2Jan 23, 2024
Device and method for fixing nut to inner surface of pipe member
AOYAMA SEISAKUSHO2 citations68
US11015630B2May 25, 2021
Method for attaching nut and collar to plate material and attachment structure of nut and collar to plate material
AOYAMA SEISAKUSHO0 citations58
US11885366B2Jan 30, 2024
Piercing nut and method for fixing the same to inner surface of mating member having closed sectional shape
AOYAMA SEISAKUSHO0 citations57
US12534942B2Jan 27, 2026
Striker
AOYAMA SEISAKUSHO0 citations45