Patents by Inventor Yoshihiro Kihara

Yoshihiro Kihara 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 tricarboxylic acid tris (alkyl-substituted cyclohexylamide)
    Patent number: 7745661
    Abstract: Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: June 29, 2010
    Assignee: New Japan Chemical Co., Ltd.
    Inventors: Sachio Kitagawa, Masahide Ishikawa, Yoshihiro Ishibashi, Taiichiro Iwamura, Yoshihiro Kihara
  • PROCESS FOR PRODUCING TRICARBOXYLIC ACID TRIS (ALKYL-SUBSTITUTED CYCLOHEXYLAMIDE)
    Publication number: 20090069599
    Abstract: Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.
    Type: Application
    Filed: April 5, 2006
    Publication date: March 12, 2009
    Applicant: NEW JAPAN CHEMICAL CO., LTD.,
    Inventors: Sachio Kitagawa, Masahide Ishikawa, Yoshihiro Ishibashi, Taiichiro Iwamura, Yoshihiro Kihara
  • PROCESS FOR PRODUCING AN ALICYCLIC UNSATURATED ALCOHOL
    Publication number: 20020183564
    Abstract: An alicyclic unsaturated alcohol (for example, tetrahydrobenzyl alcohol) having the purity of 99% by weight or more, the water content of 0.1% by weight or less and the acid value of 0.1 mg KOH/g or less can be produced, with high selectivity, by hydrogenating using an unsaturated cyclic aldehyde having the acid value of 10 mg KOH/g or less as a raw material; terminating the hydrogenation in the conversion of 70 to 99.8%; and rectifying the reaction product containing the unreacted unsaturated cyclic aldehyde. The high purity alicyclic unsaturated alcohol is useful as raw material chemicals for synthesizing drugs, agricultural chemicals, perfumes, and dyes etc.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 5, 2002
    Inventors: Hiroto Tanigawa, Koichi Okumura, Masaya Uenoya, Kango Fujitani, Yoshihiro Kihara
  • Process for producing an alicyclic unsaturated alcohol
    Patent number: 6482995
    Abstract: An alicyclic unsaturated alcohol (for example, tetrahydrobenzyl alcohol) having the purity of 99% by weight or more, the water content of 0.1% by weight or less and the acid value of 0.1 mg KOH/g or less can be produced, with high selectivity, by hydrogenating using an unsaturated cyclic aldehyde having the acid value of 10 mg KOH/g or less as a raw material; terminating the hydrogenation in the conversion of 70 to 99.8%; and rectifying the reaction product containing the unreacted unsaturated cyclic aldehyde. The high purity alicyclic unsaturated alcohol is useful as raw material chemicals for synthesizing drugs, agricultural chemicals, perfumes, and dyes etc.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: November 19, 2002
    Assignee: Daicel Chemical Industries, Ltd
    Inventors: Hiroto Tanigawa, Koichi Okumura, Masaya Uenoya, Kango Fujitani, Yoshihiro Kihara