Patents by Inventor Hiroyuki Sasakibara

Hiroyuki Sasakibara 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 lactones
    Patent number: 5502217
    Abstract: A lactone is prepared by catalytically hydrogenating a dicarboxylic acid having 3 to 10 carbon atoms or a functional derivative thereof in the presence of a catalyst comprising a metal selected from the elements of group VIII of the periodic table or a combination of said metal with an element selected from the elements of groups IVa, VIb and VIIb of the peridic table, and further in the co-presence of an alkali metal salt or an alkali metal hydroxide.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: March 26, 1996
    Assignees: Tosoh Corporation, Sagami Chemical Research Center
    Inventors: Takamasa Fuchikami, Noriko Wakasa, De-Hua He, Takanori Miyake, Takashi Okada, Atsushi Fujimura, Hiroyuki Sasakibara, Yoshiaki Kanou, Toshihiro Saito