MY

Masaaki Yokokawa

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,304,809 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5252411 Protective apparatus for secondary battery Takayuki Aita 1993-10-12
4828834 Rechargeable organic electrolyte cell Toru Nagaura, Toshio Hashimoto 1989-05-09