Patents by Inventor Hidetsugu Takenaka

Hidetsugu Takenaka 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).

  • Diesters of tricyclic alcohols
    Patent number: 3952049
    Abstract: A compound of the formula ##SPC1##In which R is a divalent hydrocarbon radical having from 1 to 34 carbon atoms and Z represents a single or a double bond, is prepared by reacting (A) 2-exo-hydroxy-exo-trimethylenenorbornane or 2-exo-hydroxy-2,3,-dihydro-exo-dicyclopentadiene, with (B) a dibasic acid, or functional derivative thereof or an intramolecular cyclic anhydride thereof. The compounds are useful as ingredients for oiling agents for synthetic fibers, synthetic lubricants and oils and as ingredients for cosmetics, paints and inks.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: April 20, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Hirokazu Nakayama, Hidetsugu Takenaka, Takeji Kadono
  • Diesters of tricyclic alcohols
    Patent number: 3950396
    Abstract: A compound of the formula ##SPC1##In which R is a divalent hydrocarbon radical having from 1 to 34 carbon atoms and Z represents a single or a double bond, is prepared by reacting (A) 2-exo-hydroxy-exo-trimethylenenorbornane or 2-exo-hydroxy-2,3-dihydro-exo-dicyclopentadiene, with (B) a dibasic acid, or functional derivative thereof or an intramolecular cyclic anhydride thereof. The compounds are useful as ingredients for oiling agents for synthetic fibers, synthetic lubricants and oils and as ingredients for cosmetics, paints and inks.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: April 13, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Hirokazu Nakayama, Hidetsugu Takenaka, Takeji Kadono