BP

Björn Pietzak

SO Sony: 4 patents #8,966 of 25,231Top 40%
Overall (All Time): #1,253,359 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7157183 Proton conductor, production method thereof, and electrochemical device using the same Koichiro Hinokuma, Constance Gertrud Rost, Masafumi Ata 2007-01-02
6821665 Proton conductor, production method thereof, and electrochemical device using the same Koichiro Hinokuma, Constance Gertrud Rost, Masafumi Ata 2004-11-23
6777133 Proton conductor, production method thereof, and electrochemical device using the same Koichiro Hinokuma, Constance Gertrud Rost, Masafumi Ata 2004-08-17
6495290 Proton conductor, production method thereof, and electrochemical device using the same Koichiro Hinokuma, Constance Gertrud Rost, Masafumi Ata 2002-12-17