KA

Keiji Akuto

NT NTT: 2 patents #2,095 of 4,871Top 45%
Overall (All Time): #2,296,849 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5346785 Photochargeable air battery Naoki Kato, Tsutomu Ogata, Masaaki Takeuchi 1994-09-13
4889777 Secondary battery and method of manufacturing the same 1989-12-26