YI

Yasuyuki Iwase

ML Mitsubishi Pencil Company, Limited: 5 patents #61 of 302Top 25%
📍 Fujioka, JP: #21 of 89 inventorsTop 25%
Overall (All Time): #1,051,251 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5957609 Applicator Masaaki Morita, Atsunori Satake, Tadashi Koriki, Masao Hashi 1999-09-28
5067838 Valve unit for writing instruments or liquid applicators 1991-11-26
D313245 Marking pen 1990-12-25
4833751 Fixing member for retaining liquid-application member of liquid applicator such as writing instrument, cosmetic instrument and the like Kiyokazu Sakurai 1989-05-30
4789261 Liquid aerosol applicator with sponge buffer to brush Yoshiaki Akaishi, Masaomi Muranishi 1988-12-06