YK

Yutaka Kawashima

TC Taisho Pharmaceutical Co.: 13 patents #23 of 557Top 5%
NK Nippon Suisan Kaisha: 2 patents #52 of 201Top 30%
Overall (All Time): #390,408 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
5990151 Optically active substituted phenylalkylamine derivatives Atsuro Nakazato, Toshihito Kumagai, Tomoki Miyazawa, Koumei Ohta, Katsuo Hatayama 1999-11-23
5672712 Thiazoline derivatives Masakazu Sato, Akira Manaka, Keiko Takahashi, Katsuo Hatayama 1997-09-30
5502202 Aminoalkylthiazole derivative Atsuro Nakazato, Yoshinori Sekiguchi, Katsuo Hatayama 1996-03-26
5496829 Use of 2-nitroxyethyl (+)apovincaminate Shigeru Okuyama, Susumu Otomo, Katsuo Hatayama 1996-03-05
5495046 Alkoxyphenylalkylamine derivatives Atsuro Nakazato, Yoshinori Sekiguchi, Koumei Ohta, Katsuo Hatayama 1996-02-27
5478945 Thiazoline derivatives Masakazu Sato, Akira Manaka, Keiko Takahashi, Katsuo Hatayama 1995-12-26
5475130 Anilide derivative Masakazu Sato, Katsuo Hatayama 1995-12-12
5416212 Anilide derivatives Masakazu Sato, Masahiro Kawase, Akira Manaka, Katsuo Hatayama 1995-05-16
5189211 Sulfonamide derivatives Masakazu Sato, Jun Goto, Yoshiyuki Chiba, Mikio Satake, Chuzo Iwata +1 more 1993-02-23
5116995 Carbazole compounds Atsuro Nakazato, Sanae Kitsukawa, Katsuo Hatayama, Satoshi Hibino 1992-05-26
5028716 3,5-diamino-1,2,4-triazole derivatives Chuzo Iwata, Takeshi Imanishi, Yoshiyuki Chiba, Mikio Satake, Masakazu Sato +1 more 1991-07-02
4952689 3-(substituted propylidene)-2-azetidinone derivates for blood platelet aggregation Masakazu Sato, Masahiro Kawase, Yoshiaki Watanabe, Katsuo Hatayama 1990-08-28
4803266 3-Oxoalkylidene-2-azetidinone derivatives Masakazu Satoh, Yuichi Hatada, Fumiko Hazato, Yoshimoto Nakashima, Kaoru Sota 1989-02-07