KT

Keiichi Tomishige

DA Daicel: 3 patents #112 of 523Top 25%
MC Mitsubishi Gas Chemical Company: 1 patents #1,048 of 1,727Top 65%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
NC Nippon Steel Engineering Co.: 1 patents #27 of 107Top 30%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
TT Toyo Tire: 1 patents #102 of 180Top 60%
Overall (All Time): #919,038 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12410109 Method for producing olefin and olefination reaction catalyst Yasuteru Kajikawa, Yuuichirou HIRAI, Keisuke Ono, Yoshinao Nakagawa 2025-09-09
11547984 Production methods of catalyst for hydrogenation and diol Norihiko Nakamura, Yoshinao Nakagawa, Masazumi Tamura 2023-01-10
11040334 Catalyst for reduction reaction of 3,4-dihydroxytetrahydrofuran, and method for producing 3,4-dihydroxytetrahydrofuran reduced product Yoshinao Nakagawa, Masazumi Tamura, Yuuichirou HIRAI, Yasuteru Kajikawa, Keisuke Ono 2021-06-22
10751704 Hydrogenation reaction catalyst for 1,4-anhydroerythritol, method for producing 3-hydroxytetrahydrofuran, and method for producing 1,3-butane diol Yoshinao Nakagawa, Yasuteru Kajikawa, Yuuichirou HIRAI 2020-08-25
10584092 Method for producing aromatic nitrile compound and method for producing carbonate ester Yousuke Shinkai, Hongyu Liu, Hidefumi Harada, Yoshinori Isahaya, Yoshinao Nakagawa +3 more 2020-03-10