YK

Yoshimasa Koishikawa

SC Shin-Kobe Electric Machinery Co.: 5 patents #17 of 199Top 9%
HS Hitachi Automotive Systems: 2 patents #689 of 1,636Top 45%
📍 Hitachinaka, JP: #688 of 2,447 inventorsTop 30%
Overall (All Time): #736,605 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9472809 Lithium ion secondary battery Ikuo Ozaki 2016-10-18
8900757 Lithium ion secondary battery Ikuo Ozaki, Yoshihisa Okuda, Yuki Takei 2014-12-02
7767342 Positive electrode active material including a lithium transition metal complex oxide and an oxide of a dissimilar element Kenji Nakai, Katsutoshi Kurihara, Kenji Hara, Syouji Hirahata 2010-08-03
6803149 Non-aqueous electrolytic solution secondary battery Kenji Nakai, Youshin Yagi, Kensuke Hironaka 2004-10-12
6733925 Non-aqueous electrolytic solution secondary battery with electrodes having a specific thickness and porosity Kensuke Hironaka, Kenji Nakai, Yuichi Takatsuka, Kenji Hara, Tomohiro Iguchi +3 more 2004-05-11
6706446 Non-aqueous electrolytic solution secondary battery Kenji Nakai, Yuichi Takatsuka, Kensuke Hironaka, Takeshi Nakano, Youshin Yagi 2004-03-16
6506518 Lithium secondary battery Koutaro Kobayashi, Kensuke Hironaka 2003-01-14