SN

Shigeto Negi

EI Eisai: 34 patents #8 of 998Top 1%
EC Eisai R&D Management Co.: 4 patents #183 of 817Top 25%
YC Yamakawa Chemical Industry Co.: 1 patents #5 of 26Top 20%
Overall (All Time): #87,115 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 25 most recent of 38 patents

Patent #TitleCo-InventorsDate
7858809 Process for production of pyrazole-fused ring derivatives Toshikazu Shimizu, Hiroshi Kuroda, Naoyuki Shimomura, Manabu Sasho, Yorihisa Hoshino +1 more 2010-12-28
7816405 Calcium bis [(2S)-3-[3-[(2S)-3-(4-chloro-2-cyanophenoxy)-2-fluoropropoxy]phenyl ]-2-isopropoxypropionate] and intermediate thereof Masanobu Shinoda, Fumiyoshi Matsuura, Kaoru Murata, Masaharu Gotoda, Kenji Hayashi +8 more 2010-10-19
7803949 Process for preparation of water-soluble azole prodrugs Manabu Sasho, Keizo Sato, Jun Niijima, Mamoru Miyazawa, Atsushi Kamada 2010-09-28
7585982 Methods for producing isoindole derivatives Kazuhiro Yoshizawa, Taiju Nakamura 2009-09-08
6841549 Condensed imidazole compounds and a therapeutic agent for diabetes mellitus Osamu Asano, Hitoshi Harada, Seiji Yoshikawa, Nobuhisa Watanabe, Takashi Inoue +16 more 2005-01-11
6642377 Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates Akio Kayano, Hiroyuki Chiba, Taiju Nakamura, Shin Sakurai, Hiroyuki Ishizuka +4 more 2003-11-04
6620945 Process for producing stereoisomer of pyrrolidine derivative Toyokazu Haga, Akio Kayano, Manabu Sasyou, Hiroyuki Naka, Hirofumi Noda +1 more 2003-09-16
5741902 7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation Motosuke Yamanaka, Kanemasa Katsu, Isao Sugiyama, Yuuki Komatu, Atsushi Kamata +2 more 1998-04-21
5606073 Diazole-propenoic acid compounds Masayuki Matsukura, Keizoh Satoh, Naoki Yoneda, Makoto Kaino, Kazutoshi Miyake +10 more 1997-02-25
5604217 7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation Motosuke Yamanaka, Kanemasa Katsu, Isao Sugiyama, Yuuki Komatu, Atsushi Kamata +2 more 1997-02-18
5587473 7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation Motosuke Yamanaka, Kanemasa Katsu, Isao Sugiyama, Yuuki Komatu, Atsushi Kamata +2 more 1996-12-24
5563265 7-acyl-3-(substituted carbamoyloxy) cephem compounds Motosuke Yamanaka, Kanemasa Katsu, Isao Sugiyama, Yuuki Komatu, Atsushi Kamata +2 more 1996-10-08
5559225 7-acyl-3-(substituted carbamoyloxy) cephem compound Motosuke Yamanaka, Kanemasa Katsu, Isao Sugiyama, Yuuki Komatu, Atsushi Kamata +2 more 1996-09-24
5541213 Propenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utility Masayuki Matsukura, Keizoh Satoh, Naoki Yoneda, Makoto Kaino, Kazutoshi Miyake +10 more 1996-07-30
5373000 7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compounds Yoshimasa Machida, Takashi Kamiya, Toshihiko Naito, Yuuki Komatu, Seiichiro Nomoto +2 more 1994-12-13
5151417 3-substituted vinyl cephalosporin derivatives Manabu Sasho, Hiroshi Yamauchi, Motosuke Yamanaka, Takaharu Nakamura, Kanemasa Katsu +2 more 1992-09-29
5128465 Process for the preparation of cephem derivatives and intermediates therefor Takashi Kamiya, Toshihiko Naito, Yuuki Komatu, Yasunobu Kai, Takaharu Nakamura +4 more 1992-07-07
5089491 3-propenylcephem derivative Takashi Kamiya, Toshihiko Naito, Yuuki Komatu, Yasunobu Kai, Takaharu Nakamura +6 more 1992-02-18
5010188 Cephem derivatives Hiroshi Yamauchi, Isao Sugiyama, Isao Saito, Seiichiro Nomoto, Takashi Kamiya +1 more 1991-04-23
5008260 Cephem derivatives Hiroshi Yamauchi, Isao Sugiyama, Isao Saito, Seiichiro Nomoto, Takashi Kamiya +1 more 1991-04-16
5006649 3-propenylcephem derivative Takashi Kamiya, Toshihiko Naito, Yuuki Komatu, Yasunobu Kai, Takaharu Nakamura +6 more 1991-04-09
4929612 Thiadiazolylacetamide cephem derivatives Yoshimasa Machida, Takashi Kamiya, Yuuki Komatu, Isao Sugiyama, Yasunobu Kai +5 more 1990-05-29
4921850 3-propenylcephem derivative Takashi Kamiya, Toshihiko Naito, Yuuki Komatu, Yasunobu Kai, Takaharu Nakamura +6 more 1990-05-01
4748171 Cephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl group Hiroshi Yamauchi, Isao Sugiyama, Isao Saito, Seiichiro Nomoto, Takashi Kamiya +1 more 1988-05-31
4698336 3-(pyrrolidinio)methyl-3-cephem derivatives Isao Saito, Seiichiro Nomoto, Takashi Kamiya, Hiroshi Yamauchi, Isao Sugiyama +1 more 1987-10-06