MK

Masao Koyama

MK Meiji Seika Kaisha: 13 patents #17 of 752Top 3%
SR Sloan Kettering Institute For Cancer Research: 2 patents #196 of 644Top 35%
Overall (All Time): #327,828 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6498251 Tetrahydrobenzindole derivatives Chika Kikuchi, Takashi Ando, Kazuyuki Fuji, Masayo Okuno, Eriko Morita +3 more 2002-12-24
6407112 Optically active tetrahydrobenzindole derivative Osamu Ushiroda, Chika Kikuchi, Takashi Ando, Eriko Morita, Masayo Okuno +1 more 2002-06-18
6355642 Tetrahydrobenzindole compounds Chika Kikuchi, Osamu Ushiroda, Takashi Ando, Hiroshi Nagaso, Kazuyuki Fuji +2 more 2002-03-12
5747448 Derivatives of cyclodepsipeptide PF 1022 Makoto Ohyama, Maki Ohishi, Yumiko Okada, Shinjiro Sumi, Yasushi Murai +6 more 1998-05-05
5312833 Method of inhibiting tumor growth using xanthocillin X dimethylether Tsutomu Tsuruoka, Harumi Fukuyasu, Katsumi Kawaharajo, Hiroshi Kurihara 1994-05-17
5210097 Xanthocillin X monomethyl ether derivative and antitumor agent containing the same Hiroshi Kurihara, Hiromi Watanabe, Masaji Sezaki, Tsutomu Tsuruoka, Harumi Fukuyasu +1 more 1993-05-11
5164507 Antibiotic pyridine compound Toru Sasaki, Akira Shimizu, Junko Yoshida, Hiroomi Watabe 1992-11-17
5053431 Derivatives of chrysophanol as topoisomerase II inhibitors Kyoichi A. Watanabe, Ting-Chao Chou 1991-10-01
5037993 Sulfonyl derivatives of an antibiotic substance isolated from streptomyces Kazunori Ohba, Masaji Sezaki, Shinichi Kondo, Tadashi Nakazawa, Haruo Yamamoto 1991-08-06
4994578 Certain anti-tumor duocarmycin antibiotics from streptomyces Kazunori Ohba, Hiroomi Watabe, Mieko Nagasawa, Shiro Sakakibara, Takashi Shomura +4 more 1991-02-19
4966918 Derivatives of chryosphanol Kyoichi A. Watanabe 1990-10-30
4839378 Fluorophthalimides and agricultural and horticultural fungicides containing them Michiaki Iwata, Kunihiko Kurihara, Masaji Sezaki 1989-06-13
4647572 Iodoallyl and iodopropargyl substituted tetrazoles and anti-microbial compositions thereof Shigeharu Inouye, Keinosuke Miyauchi, Takashi Tsuruoka, Fumio Kai, Kuniomi Matsumoto +2 more 1987-03-03
4563472 Iodoallyl and iodopropargyl substituted tetrazoles and anti-microbial compositions thereof Shigeharu Inouye, Taro Niida, Keinosuke Miyauchi, Kuniomi Matsumoto, Eiichi Akita +2 more 1986-01-07
4495358 Antibiotic pyrrolomycin E Takashi Tsuruoka, Norio Ezaki, Keinosuke Miyauchi, Shigeharu Inouye 1985-01-22