HH

Hayashi Hayakawa

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,331,759 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D302005 Battery Toshiaki Kizawa, Koichi Sato, Yuji Kano 1989-07-04
4595643 Air cell electrode and process for preparing its catalyst Nobuharu Koshiba, Keigo Momose, Akira Ohta 1986-06-17