JN

Jun Niijima

EI Eisai: 12 patents #91 of 998Top 10%
EC Eisai R&D Management Co.: 12 patents #22 of 817Top 3%
ME Mercian: 4 patents #14 of 110Top 15%
AR American Regent: 1 patents #130 of 274Top 50%
Overall (All Time): #171,432 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11691990 Salts of compounds and crystals thereof Hirofumi Kuroda, So Yasui, Yoko Ito, Ikuo Kushida 2023-07-04
8530654 Crystals, amorphous substances or salts of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl) phenyl] terephthalamic acid Eiichi Yamamoto, Osamu Asano, Kazumasa Nara 2013-09-10
8492543 Method for producing quinazoline derivative 2013-07-23
8410277 Method for manufacturing heterocycle substituted pyridine derivatives Kazuhiro Yoshizawa, Yuki KOSAKA, Shinya Abe 2013-04-02
8058444 Heterocycle-substituted pyridine derivative's salt or crystal thereof Kazutaka Nakamoto, Masayuki Matsukura, Keigo Tanaka, Eiichi Yamamoto, Takuma Minamisono 2011-11-15
7893068 Physiologically active substances Yoshihiko Kotake, Yoshio Fukuda, Mitsuo Nagai, Regina Mikie Kanada, Takashi Nakashima +2 more 2011-02-22
7884128 Process for total synthesis of pladienolide B and pladienolide D Regina Mikie Kanada, Daisuke Ito, Takashi Sakai, Naoki Asai, Yoshihiko Kotake 2011-02-08
7816401 Process for total synthesis of pladienolide B and pladienolide D Regina Mikie Kanada, Daisuke Ito, Takashi Sakai, Naoki Asai, Yoshihiko Kotake 2010-10-19
7803949 Process for preparation of water-soluble azole prodrugs Manabu Sasho, Keizo Sato, Mamoru Miyazawa, Shigeto Negi, Atsushi Kamada 2010-09-28
7667052 Bioactive substance Yoshiharu Mizui, Takashi Sakai, Satoshi Yamamoto, Keisuke Komeda, Masanori Fujita +19 more 2010-02-23
7619100 Physiologically active substances Yoshihiko Kotake, Yoshio Fukuda, Mitsuo Nagai, Regina Mikie Kanada, Takashi Nakashima +2 more 2009-11-17
7550503 Physiologically active substances Yoshihiko Kotake, Yoshio Fukuda, Mitsuo Nagai, Regina Mikie Kanada, Takashi Nakashima +2 more 2009-06-23
7256178 Physiologically active substances Yoshihiko Kotake, Yoshio Fukuda, Mitsuo Nagai, Regina Mikie Kanada, Susumu Takeda +4 more 2007-08-14
7026352 Physiologically active substances Yoshiharu Mizui, Takashi Sakai, Satoshi Yamamoto, Keisuke Komeda, Masanori Fujita +19 more 2006-04-11
5952335 Fused polycyclic heterocycle derivatives Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada, Jun-ichi Kamata, Kentaro Yoshimatsu +7 more 1999-09-14
5854274 Tricyclic heterocyclic sulfonamide and sulfonic ester derivatives Hiroshi Yoshino, Norihiro Ueda, Toru Haneda, Yoshihiko Kotake, Kentaro Yoshimatsu +5 more 1998-12-29
5846969 Tricyclic heterocyclic sulfonamide and sulfonic ester derivatives Hiroshi Yoshino, Norihiro Ueda, Toru Haneda, Yoshihiko Kotake, Kentaro Yoshimatsu +5 more 1998-12-08
5834462 Tricyclic heterocyclic sulfonamide and sulfonic ester derivatives Hiroshi Yoshino, Norihiro Ueda, Toru Haneda, Yoshihiko Kotake, Kentaro Yoshimatsu +5 more 1998-11-10
5610304 Pyrimidinyl or pyridinyl sulfonamide substituted compounds Hiroshi Yoshino, Norihiro Ueda, Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1997-03-11
5610320 Sulfonamide phenyl substituted compounds Hiroshi Yoshino, Norihiro Ueda, Hirovuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1997-03-11
5434172 Sulfonamide derivatives Hiroshi Yoshino, Norihiro Ueda, Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1995-07-18
5332751 Pyridine carboxamide compounds which have useful as pharmaceutical utility Hiroshi Yoshino, Norihiro Ueda, Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1994-07-26
5292758 Sulfonamide derivatives Hiroshi Yoshino, Norihiro Ueda, Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1994-03-08
5250549 Sulfonamide derivatives Hiroshi Yoshino, Norihiro Ueda, Hiroyuki Sugumi, Yoshihiko Kotake, Toshimi Okada +8 more 1993-10-05