KI

Keizou Ikai

NO Nippon Oil: 4 patents #154 of 773Top 20%
NL Nippon Petroleum Refining Company, Limited: 3 patents #10 of 58Top 20%
Overall (All Time): #986,313 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10008337 Activated carbon for an electric double-layer capacitor electrode and manufacturing method for same Masaki Fujii, Masatoshi Nishida 2018-06-26
8226921 Raw coke for electricity storage carbon material and needle coke Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more 2012-07-24
8197788 Raw coke for electricity storage carbon material and needle coke Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more 2012-06-12
7959888 Raw coke for electricity storage carbon material and needle coke Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more 2011-06-14
7582902 Raw material carbon composition for carbon material for electrode in electric double layer capacitor Tamotsu Tano, Shiro Nakamo, Takashi Oyama, Hideki Ono, Kiwamu Takeshita 2009-09-01