Patents by Inventor Koichi Shinhama

Koichi Shinhama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low hygroscopic aripiprazole drug substance and processes for the preparation thereof
    Publication number: 20070203150
    Abstract: The present invention provides low hygroscopic forms of aripiprazole and processes for the preparation thereof which will not convert to a hydrate or lose their original solubility even when a medicinal preparation containing the aripiprazole anhydride crystals is stored for an extended period.
    Type: Application
    Filed: April 30, 2007
    Publication date: August 30, 2007
    Inventors: Takuji Bando, Satoshi Aoki, Junichi Kawasaki, Makoto Ishigami, Youichi Taniguchi, Tsuyoshi Yabuuchi, Kiyoshi Fujimoto, Yoshihiro Nishioka, Noriyuki Kobayashi, Tsutomu Fujimura, Masanori Takahashi, Kaoru Abe, Tomonori Nakagawa, Koichi Shinhama, Naoto Utsumi, Michiaki Tominaga, Yoshihiro Ooi, Shohei Yamada, Kenji Tomikawa
  • Method for producing 4-nitroimidazole compound
    Publication number: 20070161802
    Abstract: The present invention provides a method for producing a 4-nitroimidazole compound represented by general formula (1) at high yield and at high purity by a safe method causing few dangers such as explosion. The production method of the present invention comprises iodinating a 4-nitroimidazole compound represented by general formula (2): wherein each of X1 and X2 represents a chlorine atom or bromine atom, and then reducing the obtained 5-iodo-4-nitroimidazole compound represented by general formula (3): wherein X2 is the same as defined above.
    Type: Application
    Filed: February 15, 2005
    Publication date: July 12, 2007
    Inventor: Koichi Shinhama
  • Low hygroscopic aripiprazole drug substance and processes for the preparation thereof
    Publication number: 20040058935
    Abstract: The present invention provides low hygroscopic forms of aripiprazole and processes for the preparation thereof which will not convert to a hydrate or lose their original solubility even when a medicinal preparation containing the aripiprazole anhydride crystals is stored for an extended period.
    Type: Application
    Filed: June 16, 2003
    Publication date: March 25, 2004
    Inventors: Takuji Bando, Satoshi Aoki, Junichi Kawasaki, Makoto Ishigami, Youichi Taniguchi, Tsuyoshi Yabuuchi, Kiyoshi Fujimoto, Yoshihiro Nishioka, Noriyuki Kobayashi, Tsutomu Fujimura, Masanori Takahashi, Kaoru Abe, Tomonori Nakagawa, Koichi Shinhama, Naoto Utsumi, Michiaki Tominaga, Yoshihiro Ooi, Shohei Yamada, Kenji Tomikawa
  • Thiophene derivatives
    Patent number: 4454131
    Abstract: This invention relates to new thiophene derivatives and their use as fungicides in agriculture and horticulture.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: June 12, 1984
    Assignees: Ube Industries, Ltd., Hokko Chemical Industry Co., Ltd.
    Inventors: Yojiro Hirota, Koichi Shinhama, Katsumi Sato, Takuo Wada