Inventor

SAKAGAMI MASASHI

JP4 patents

Patents

4 patents

US11221686B2Jan 11, 2022

Multifunction pen

MITSUBISHI PENCIL CO2 citations68

US11472222B2Oct 18, 2022

Multifunction pen

MITSUBISHI PENCIL CO0 citations58

US11112892B2Sep 7, 2021

Stylus pen

MITSUBISHI PENCIL CO0 citations47

US11467677B2Oct 11, 2022

Input pen and method of manufacturing input pen

MITSUBISHI PENCIL CO0 citations42