SO

Shohei Okano

TK Toa Nenryo Kogyo: 2 patents #87 of 220Top 40%
TO Tonen: 1 patents #126 of 264Top 50%
Overall (All Time): #1,660,581 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5094993 Hydrotreating catalysts Tadashi Miura, Ikuo Akizuki, Hiroshi Kaya, Takuji Itoh 1992-03-10
4837193 Hydrotreating catalyst and process of manufacture Ikuo Akizuki, Hiroshi Kaya, Nobuo Otake, Keiji Kumagai, Yoshihito Kaneko 1989-06-06
4186078 Catalyst and process for hydrofining petroleum wax Takuji Itoh, Satoshi Sakurada, Takashi Obayashi, Takeo Toyoizumi, Osami Iwata 1980-01-29