KU

Kenji Usui

KC Kawasaki Kasei Chemicals: 5 patents #4 of 63Top 7%
MP Mitsubishi Tanabe Pharma: 2 patents #153 of 503Top 35%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
Overall (All Time): #635,361 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10793582 Bicyclic heterocyclic compound Masahiro Okuyama, Kenji Fukunaga, Norimitsu Hayashi, Daisuke Iijima, Hideki Horiuchi +1 more 2020-10-06
10065972 Bicyclic or tricyclic heterocyclic compound Masahiro Okuyama, Kenji Fukunaga, Norimitsu Hayashi, Daisuke Iijima, Hideki Horiuchi +1 more 2018-09-04
6414204 Process for producing allyl chloride Shoichi Oishi, Toshitaka Hiro, Tatsuharu Arai 2002-07-02
5153339 Process for separation of naphthoquinone and phthalic acid Ryo Matsuura, Tatsuyoshi Komatsu, Toru Sato 1992-10-06
4795604 Method for molding 1,4,4a,9a-tetrahydroanthraquinone Katsumi Matsuzaki, Seishi Ikemoto 1989-01-03
4412954 Process for producing 1,4,4a,9a-tetrahydroanthraquinone compound Tatsuyoshi Komatsu 1983-11-01
4369140 Process for producing hydroanthraquinones Tatsuyoshi Komatsu, Shigeaki Numata 1983-01-18
4202828 Process for separation of naphthoquinone and phthalic acid Ryo Matsuura, Tatsuyoshi Komatsu, Yukio Nomiyama 1980-05-13