TO

Takashi Obikawa

SO Sony: 3 patents #10,744 of 25,231Top 45%
IC Idemitsu Kosan Co.: 2 patents #509 of 1,237Top 45%
Overall (All Time): #1,510,078 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9461251 Anthracene derivative and organic electroluminescence device using the same Masahiro Kawamura, Shigeyuki Matsunami, Ichinori Takada, Yasunori Kijima 2016-10-04
9421515 Porous carbon material, adsorbent, oral adsorbent, medical adsorbent, filler for blood purification column, water purification adsorbent, cleansing agent, carrier, sustained release pharmaceutical, cell culture scaffold, mask, carbon/polymer composite, adsorbent sheet and functional food Makoto YOSHIZAKI, Hironori Iida, Shinichiro Yamada, Seiichiro Tabata, Kazuma Usami +4 more 2016-08-23
8512875 Anthracene derivative and organic electroluminescence device using the same Masahiro Kawamura, Shigeyuki Matsunami, Ichinori Takada, Yasunori Kijima 2013-08-20