RK

Ryuichi Kasahara

NE Nec: 10 patents #1,345 of 14,502Top 10%
ND Nec Energy Devices: 5 patents #9 of 81Top 15%
NT Nec Tokin: 5 patents #48 of 299Top 20%
JL Japan Exlan Company Limited: 3 patents #13 of 76Top 20%
Overall (All Time): #223,486 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10374219 Lithium ion secondary battery Jiro Iriyama, Shin Serizawa, Hiroo Takahashi, Tatsuji Numata 2019-08-06
9768476 System and method for detecting a state of a lithium secondary battery by measuring a voltage of a negative electrode with respect to a reference electrode Jiro Iriyama, Tetsuya Kajita, Daisuke Kawasaki, Tatsuji Numata 2017-09-19
9263741 Negative electrode for nanaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery using the same, and method for manufacturing negative electrode for nonaqueous electrolyte secondary battery Jiro Iriyama, Tetsuya Kajita, Tatsuji Numata 2016-02-16
9160004 Lithium ion secondary battery Jiro Iriyama, Kazuhiko Inoue 2015-10-13
9076995 Secondary battery Shin Serizawa, Hiroo Takahashi, Daisuke Kawasaki, Jiro Iriyama, Emiko Fujii +2 more 2015-07-07
9018916 Lithium secondary battery and control system therefor, and method for detecting state of lithium secondary battery Jiro Iriyama, Tetsuya Kajita, Daisuke Kawasaki, Tatsuji Numata 2015-04-28
8956762 Lithium ion secondary battery and method for manufacturing the same Jiro Iriyama, Tetsuya Kajita, Hiroo Takahashi, Tatsuji Numata, Daisuke Kawasaki 2015-02-17
8435672 Lithium ion secondary battery Yutaka Bannai, Tatsuji Numata 2013-05-07
6843810 Electric double layer capacitor and method for preparing the same Yutaka Nakazawa, Koji Sakata 2005-01-18
6751084 Electric double layer capacitor and method for preparing the same Yutaka Nakazawa, Koji Sakata 2004-06-15
6741450 Electric double-layer capacitor and method for preparing the same Yutaka Nakazawa, Koji Sakata 2004-05-25
6717795 Electric double-layer capacitor, and process for producing the same Yutaka Nakazawa, Koji Sakata 2004-04-06
6625007 Electric double layer capacitor of low ESR value and a method of fabricating same with low percent defective Koji Sakata, Yutaka Nakazawa 2003-09-23
6507479 Electric double-layer capacitor having a laminated overcoat Takashi Saito 2003-01-14
6426865 Electric double layer capacitor Takashi Saito 2002-07-30
6339529 Electric double layer capacitor and method of forming the same Takashi Saito, Yukari Kibi 2002-01-15
6320740 Method for manufacturing a polarized electrode for an electric double-layer capacitor Takashi Saito, Yukari Kibi 2001-11-20
5973106 Acrylonitrile polymer compositions, method for producing the compositions, and method for producing shaped articles from the compositions Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Noriyuki Kohara, Yoshihiro Watanabe 1999-10-26
5681512 Process for producing homogeneous phase melt of polyacrylonitrile Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Noriyuki Kohara, Yoshihiro Watanabe 1997-10-28
5674975 Process for manufacturing an improved acrylonitrile polymer melt Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Noriyuki Kohara, Yoshihiro Watanabe 1997-10-07