YO

Yumiko Okamoto

TI Toray Industries: 2 patents #1,308 of 3,690Top 40%
JC Japan Vilene Company: 1 patents #56 of 154Top 40%
Overall (All Time): #1,921,991 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10826098 Composite polymer electrolyte membrane, membrane electrode assembly and solid polymer fuel cell using same Daisuke Izuhara, Junpei Yamaguchi, Shusuke Shirai, Tomoyuki Kunita, Hiroaki Umeda +4 more 2020-11-03
10483577 Composite polymer electrolyte membrane, and catalyst-coated membrane, membrane electrode assembly, and polymer electrolyte fuel cell using the composite polymer electrolyte membrane Junpei Yamaguchi, Daisuke Izuhara, Hiroaki Umeda 2019-11-19