MK

Masaji Kasai

KC Kyowa Hakko Kogyo Co.: 41 patents #3 of 943Top 1%
KK Kitasato Kenkyushio: 2 patents #6 of 21Top 30%
KC Kyowa Hakko Bio Co.: 2 patents #40 of 123Top 35%
DC Dainippon Sumitomo Pharma Co.: 1 patents #107 of 256Top 45%
SC Sumitomo Dainippon Pharma Co.: 1 patents #104 of 206Top 55%
📍 Takaoka, MD: #1 of 1 inventorsTop 100%
Overall (All Time): #70,921 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 1–25 of 43 patents

Patent #TitleCo-InventorsDate
9434737 Process for producing optically active succinimide derivatives and intermediates thereof Shinji Kita, Tadashi Ogawa, Hideaki Tokai 2016-09-06
8633001 Process for producing optically active succinimide derivatives and intermediates thereof Shinji Kita, Tadashi Ogawa, Hideaki Tokai 2014-01-21
6197998 Process for producing N-glycyltyrosine and its crystal structure Takashi Mimura, Eiichiro Imai, Takahiro Imai, Takehiro Ogasa 2001-03-06
5952355 Propenone derivatives Shun-ichi Ikeda, Uichiro Kimura, Tadashi Ashizawa, Katsushige Gomi, Hiromitsu Saito +5 more 1999-09-14
5780677 Process for producing glutamine derivative Kazumi Amatsu, Yoshiyuki Yamada, Yoshikazu Mori, Shoichi Mizutaki, Shinji Tomioka 1998-07-14
5756823 Glutathione monoester sulfonate Sachiko Kato, Iwao Chujo, Takehiro Ogasa, Yukiteru Mimura 1998-05-26
5585488 Process for producing indolocarbazole derivatives Masahiko Kinugawa, Yoshiaki Masuda, Yukiteru Mimura, Chikara Murakata, Hiromitsu Saito +2 more 1996-12-17
5550283 Process for producing alanylglutamine Kunimi Inoue, Yoshiyuki Yamada, Kazumi Amatsu, Yukiteru Mimura, Yasunori Nakaguchi +5 more 1996-08-27
5539112 5-aminoflavone derivatives Tsutomu Akama, Shun-ichi Ikeda, Yasushi Shida, Hiroyuki Ishida, Uichiro Kimura +3 more 1996-07-23
5468474 N-acylglutamine derivatives and cosmetic compositions Shinkichi Honda, Kenji Torii, Yoichiro Arai, Hiromasa Kato, Takao Iida +4 more 1995-11-21
5380934 Process for producing alanylgutamine Kunimi Inoue, Yoshiyuki Yamada, Kazumi Amatsu, Yukiteru Mimura, Yasunori Nakaguchi +5 more 1995-01-10
5344938 Indole 3-carboxylic acid derivatives Hitoshi Arai, Hiroshi Nishikawa, Takehiro Ogasa, Masahiko Kinugawa, Shinji Tomioka 1994-09-06
5334611 6-ethyl mitomycin derivatives Hitoshi Arai, Yutaka Kanda, Motomichi Kono, Tadashi Ashizawa, Katsushige Gomi 1994-08-02
5256685 Mitomycin derivatives Hitoshi Arai, Yutaka Kanda, Motomichi Kono, Tadashi Ashizawa, Katsushige Gomi 1993-10-26
5220026 Pyrazoloacridone derivatives Yukiteru Mimura, Yasushi Shida, Tadashi Ashizawa, Katsushige Gomi 1993-06-15
5218126 Halogen substituted mitomycin derivatives Hitoshi Arai, Katsushige Gomi, Tadashi Ashizawa 1993-06-08
5180825 Mitomycin derivatives Hitoshi Arai, Motomichi Kono, Katsushige Gomi 1993-01-19
5138059 DC-89 compounds and process for their preparation Keiichi Takahashi, Michio Ichimura, Shigeo Katsumata, Tatsuhiro Ogawa, Makoto Morimoto +5 more 1992-08-11
5117006 DC-88A derivatives useful as antitumor agents Hiromitsu Saito, Makoto Morimoto, Eiji Kobayashi, Yoichi Uosaki, Yutaka Kanda +1 more 1992-05-26
5084468 DC-88A derivatives Hiromitsu Saito, Makoto Morimoto, Eiji Kobayashi, Yoichi Uosaki, Yutaka Kanda +1 more 1992-01-28
5071984 DC-52 derivatives Hiromitsu Saito, Akira Sato, Makoto Morimoto, Tadashi Ashizawa 1991-12-10
5068349 Mitomycin derivatives Yutaka Kanda, Hitoshi Arai, Makoto Morimoto, Tadashi Ashizawa 1991-11-26
5021423 Mitomycin derivatives and intermediates therefor Yutaka Kanda, Hitoshi Arai, Makoto Morimoto 1991-06-04
5011854 Hydroxamic acid derivatives and use thereof in combatting lipoxygenase-mediated diseases Mitsuru Takahashi, Shigeto Kitamura, Hiroshi Kase, Isao Kawamoto, Takao Iida +4 more 1991-04-30
4992551 DC-52 derivatives Hiromitsu Saito, Akira Sato, Makoto Morimoto, Tadashi Ashizawa 1991-02-12