IU

Isao Umezawa

UN Unknown: 4 patents #4,220 of 83,584Top 6%
TK Tobishi Yakuhin Kogyo Kabushiki Kaisha: 3 patents #1 of 17Top 6%
Overall (All Time): #1,044,423 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6403607 Sulfonamide derivatives and drugs containing the same as the active ingredient Hiroyoshi Hidaka, Tsutomu Inoue, Hiroyuki Nakano, Hiroshi Nakamura, Naofumi Watanabe +3 more 2002-06-11
5245034 Compound having vessel smooth muscle relaxation activity Hiroyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh +5 more 1993-09-14
5245050 Derivatives of physiologically active substance ML-236B and process for production thereof Akira Endo, Tadashi Toshioka, Masayuki Yuasa, Takashi Inaba, Tsutomu Inoue 1993-09-14
5216150 Derivatives of isoquinoline (and naphthalene) sulfonamides Hiroyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh +5 more 1993-06-01
5081246 Compound having vessel smooth muscle relaxation activity Horoyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh +5 more 1992-01-14