Patents by Inventor Naoya Morohashi

Naoya Morohashi 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).

  • Cyclic aniline sulfide and process for preparing the same
    Publication number: 20030060637
    Abstract: A cyclic phenol sulfide represented by the following formula: 1
    Type: Application
    Filed: September 11, 2002
    Publication date: March 27, 2003
    Inventors: Sotaro Miyano, Tetsutaro Hattori, Nobuhiko Iki, Naoya Morohashi, Hiroshi Katagiri, Haruhiko Takeya, Setsuko Miyanari, Toshihiro Kobori
  • Composition for extracting transition metal and method for extracting transition metal using the same
    Patent number: 5881358
    Abstract: A composition for extracting a transition metal which comprises as an active ingredient a cyclic phenol sulfide represented by the following formula (1): ##STR1## wherein X represents a hydrogen atom, a hydrocarbon group, an acyl group, a carboxyalkyl group, or a carbamoylalkyl group; Y represents a hydrocarbon group; Z represents a sulfide group, a sulfinyl group, or a sulfonyl group; and n is an integer of 4 to 8; and a method for extracting a transition metal using the composition
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: March 9, 1999
    Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.
    Inventors: Sotaro Miyano, Nobuhiko Iki, Fumitaka Narumi, Naoya Morohashi, Hitoshi Kumagai