Patents by Inventor Kiyoshi Tsuchihashi

Kiyoshi Tsuchihashi 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).

  • Novel 2-(.alpha.-substituted alkyl)-2-imidazoline and process for producing the same
    Patent number: 4431672
    Abstract: A 2-(.alpha.-substituted alkyl)-2-imidazoline represented by the general formula I: ##STR1## wherein R.sub.1 represents a C.sub.6 -C.sub.20 alkyl or alkenyl group and R.sub.2 represents a C.sub.1 -C.sub.4 alkyl group which is novel and useful as an intermediate for useful surfactants and polymer-modifiers.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: February 14, 1984
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yutaka Yasuda, Kiyoshi Tsuchihashi, Toshiro Nishimura
  • Novel .alpha.-substituted carboxylamidoamine and process for producing the same
    Patent number: 4428884
    Abstract: An .alpha.-substituted carboxylamidoamine represented by the general formula I: ##STR1## wherein R.sub.1 represents a C.sub.6 -C.sub.20 alkyl or alkenyl group, R.sub.2 represents H or C.sub.2 H.sub.4 OH, R.sub.3 and R.sub.4 represent each H, C.sub.2 H.sub.4 CO.sub.2 M or C.sub.2 H.sub.4 OH and when R.sub.2 is C.sub.2 H.sub.4 OH, R.sub.3 and R.sub.4 represent each H or C.sub.2 H.sub.4 CO.sub.2 M and when R.sub.2 is H, one of R.sub.3 and R.sub.4 represents C.sub.2 H.sub.4 OH, and M is H, an alkali metal, an ammonium or an organic ammonium is novel and useful as a surfactant.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: January 31, 1984
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yutaka Yasuda, Kiyoshi Tsuchihashi, Toshiro Nishimura
  • Preparation of 4-homoisotwistane, (tricyclo[5.3.1.0.sup.3,8 ]undecane)
    Patent number: 4133840
    Abstract: A process for the hydride transfer reduction rearrangement of tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene having the formula (I): ##STR1## by subjecting tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene having the formula (I) to rearrangement with concentrated sulfuric acid in the presence of a hydride source to convert it to 4-homoisotwistane (tricyclo[5.3.1.0.sup.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: January 9, 1979
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Kiyoshi Tsuchihashi, Naotake Takaishi, Yoshiaki Fujikura
  • Tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene and process for hydride transfer reduction rearrangement of same
    Patent number: 4086285
    Abstract: Tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene is disclosed and there is further disclosed a process for the hydride transfer reduction rearrangement of tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene having the formula (I): ##STR1## by subjecting tricyclo[6.2.1.0.sup.2,6 ]undeca-2(6)-ene having the formula (I) to rearrangement with concentrated sulfuric acid in the presence of a hydride source to convert it to 4-homoisotwistane (tricyclo[5.3.1.0.sup.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: April 25, 1978
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Kiyoshi Tsuchihashi, Naotake Takaishi, Yoshiaki Fujikura, Koji Aigami
  • Process for hydride transfer reduction rearrangement of 8-exo-hydroxymethyl-endo-tricyclo [5.2.1.0.sup.2,6 ] decane to form tricyclo [5.3.1.0.sup.3,8 ] undecane
    Patent number: 4059643
    Abstract: The hydride transfer reduction rearrangement of 8-exo-hydroxymethyl-endo-tricyclo [5.2.1.0.sup.2,6 ] decane in the presence of concentrated sulfuric acid and a hydride source provides 4-homoisotwistane (tricyclo [5.3.1.0.sup.3,8 ] undecane).
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: November 22, 1977
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Yoshiaki Fujikura, Kiyoshi Tsuchihashi, Eiji Kashihara
  • 8-Exo-hydroxy-endo-tricyclo [5.2.2.0.sup.2,6 ]undecane
    Patent number: 4036893
    Abstract: The compound 8-exo-hydroxy-endo-tricyclo[5.2.2.0.sup.2,6 ]-undecane having the formula (I): ##STR1## is prepared by subjecting endo-tricyclo[5.2.2.0.sup.2,6 ]undec-8-ene having the formula (II): ##STR2## to hydroboration and oxidation with hydrogen peroxide.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: July 19, 1977
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Yoshiaki Fujikura, Kiyoshi Tsuchihashi, Naotake Takaishi
  • 4-Homoisotwistane-3-carboxylic acid
    Patent number: 4002674
    Abstract: 4-HOMOISOTWISTANE-CARBOXYLIC ACID IS PREPARED BY REACTING 4-HOMOISOTWISTANE WITH T-BUTYL ALCOHOL AND FORMIC ACID OR CARBON MONOXIDE, IN THE PRESENCE OF SULFURIC ACID AS CATALYST.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: January 11, 1977
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Hiroshi Ikeda, Naotake Takaishi, Kiyoshi Tsuchihashi
  • 4-Homoisotwist-3-yl-carbinol
    Patent number: 4002690
    Abstract: 4-HOMOISOTWIST-3-YL-CARBINOL HAVING THE FORMULA (II): ##STR1## is prepared by reducing 4-homoisotwistane-3-carboxylic acid or a salt or lower alkyl ester thereof, having the formula (I): ##STR2## wherein A is hydrogen, one equivalent of an alkali metal or an alkaline earth metal, or an alkyl group having 1 to 8 carbon atoms.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: January 11, 1977
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Hiroshi Ikeda, Naotake Takaishi, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo [5.3.1.0.sup.3,8 ] undecane
    Patent number: 3976707
    Abstract: A process for the preparation of tricyclo [5.3.1.0.sup.3,8 ]-undecane, in which endo-tetramethylenenorbornane is isomerized in the presence of an acid catalyst.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]undecane
    Patent number: 3976709
    Abstract: A process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]-undecane in which 6,7-endo-trimethylenebicyclo[3.2.1]octane is isomerized in the presence of an acid catalyst.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]undercane
    Patent number: 3976708
    Abstract: A process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]-undecane which comprises isomerizing 6,7-exo-trimethylenebicyclo[3.2.1]octane in the presence of an acid catalyst.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]undecane
    Patent number: 3976711
    Abstract: A process for the preparation of tricyclo [5.3.1.0.sup.3,8 ]undecane in which homoadamantane is isomerized in the presence of an acid catalyst.
    Type: Grant
    Filed: June 3, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo [5.3.1.0.sup.3,8 ]undecane
    Patent number: 3976706
    Abstract: A process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]-undecane in which tricyclo[5.2.2.0.sup.2,6 ]undecane is isomerized in the presence of an acid catalyst.
    Type: Grant
    Filed: July 2, 1974
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • Process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]undecane
    Patent number: 3976710
    Abstract: A process for the preparation of tricyclo[5.3.1.0.sup.3,8 ]undecane which comprises isomerizing 5,6-exo-trimethylenenorbornyl-2-carbinol in the presence of an acid catalyst and a hydride donor.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi
  • 2,4-Exo-ethanobicyclo (3.3.1)nonane
    Patent number: 3976712
    Abstract: 2,4-EXO-ETHANOBICYCLO[3.3.1]NONANE HAVING THE FORMULA (I): ##SPC1##is prepared by treating 2-endo-hydroxymethyl-2,3-exo-trimethylenenorbornane having the formula (II): ##SPC2##with a hydride donor and an acid catalyst.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: August 24, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Naotake Takaishi, Yoshiaki Inamoto, Kiyoshi Tsuchihashi