AT

Atsuko Tohyama

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
SK Showa Denko K.K.: 2 patents #639 of 1,736Top 40%
Overall (All Time): #2,333,834 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4879192 Secondary cell Shigeoki Nishimura, Kazunori Fujita, Hiroyuki Sugimoto, Noboru Ebato, Shinpei Matsuda 1989-11-07
4559284 Secondary battery Shigeoki Nishimura, Kazunori Fujita, Hiroyuki Sugimoto, Noboru Ebato, Shinpei Matsuda 1985-12-17