Patents by Inventor Kunioki Kodama

Kunioki Kodama 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 preparing carbonic diester
    Patent number: 5380906
    Abstract: Disclosed is a process for preparing carbonic diester comprising the formation of carbonic diester by the vapor phase catalytic reaction of an alkyl nitrite and carbon monoxide in the presence of a solid catalyst, wherein platinum group metal ion in the solid catalyst is exchanged on an ion exchange zeolite carrier.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: January 10, 1995
    Assignee: UBE Industries, Ltd.
    Inventors: Keigo Nishihira, Shuji Tanaka, Kunioki Kodama, Takayoshi Kaneko, Tetsuro Kawashita, Yuki Nishida, Tokuo Matsuzaki, Koji Abe