Patents by Inventor Naoka Okada

Naoka Okada 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).

  • Process for producing quinoline carboxyaldehyde derivative and intermediate thereof
    Publication number: 20040077866
    Abstract: 2-Cyclopropyl-4-(4′-fluorophenyl)quinoline-3-carboxyaldehyde useful as a material for pharmaceutical products, can be obtained by reacting 3-cyclopropyl-3-oxopropanenitrile with 2-amino-4′-fluorobenzophenone to obtain 2-cyclopropyl-4-(4′-fluorophenyl)quinoline-3-carbonitrile, and reducing it.
    Type: Application
    Filed: August 14, 2003
    Publication date: April 22, 2004
    Inventors: Katsumasa Harda, Shigeyoshi Nishino, Kenji Hirotsu, Hidetaka Shima, Naoka Okada, Takashi Harada, Akira Nakamura, Hiroyuki Oda