Patents by Inventor Tamotsu Yoshioka

Tamotsu Yoshioka 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).

  • Patent number: 4582651
    Abstract: A process for preparing hydroxyalkylaminosulfonic acids which comprises reacting a hydroxyalkylamine of the formula: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, and R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, or a lower alkyl group, with an alkali metal salt of an .alpha.,.beta.-unsaturated sulfonic acid of the formula: ##STR2## wherein R.sub.3 is a hydrogen atom or a methyl group and M is an alkali metal, followed by elimination of the alkali metal to give a hydroxyalkylaminosulfonic acid of the formula: ##STR3## wherein R.sub.1 and R.sub.3 are each as defined above and R.sub.2 ' is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, a lower alkyl group or a group of the formula: ##STR4## wherein R.sub.3 is as defined above.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: April 15, 1986
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Keizou Ishii, Ryuzo Mizuguchi, Shinichi Ishikura, Tamotsu Yoshioka
  • Patent number: 4543216
    Abstract: A polymerizable amino acid compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each hydrogen or methyl, R.sub.4 is C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, R.sub.5 is hydrogen or C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, or when R.sub.4 and R.sub.5 are taken together with the nitrogen atom to which they are attached, they represent a nitrogen atom containing heterocyclic group, R.sub.6 is an alkylene group having not more than 6 carbon atoms and A is --COO-- or --SO.sub.3 --, provided that when R.sub.4 is C.sub.1 -C.sub.20 alkyl, R.sub.5 is not hydrogen, which is highly soluble in water or organic solvents without any acidic or basic substance and can be introduced into the molecule of high molecular compounds.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: September 24, 1985
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Shinichi Ishikura, Tamotsu Yoshioka, Ryuzo Mizuguchi
  • Patent number: 4481150
    Abstract: A process for preparing hydroxyalkylaminosulfonic acids which comprises reacting a hydroxyalkylamine of the formula: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, and R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, or a lower alkyl group, with an alkali metal salt of an .alpha.,.beta.-unsaturated sulfonic acid of the formula: ##STR2## wherein R.sub.3 is a hydrogen atom or a methyl group and M is an alkali metal, followed by elimination of the alkali metal to give a hydroxyalkylaminosulfonic acid of the formula: ##STR3## wherein R.sub.1 and R.sub.3 are each as defined above and R.sub.2 ' is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, a lower alkyl group or a group of the formula: ##STR4## wherein R.sub.3 is as defined above.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: November 6, 1984
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Keizou Ishii, Ryuzo Mizuguchi, Shinichi Ishikura, Tamotsu Yoshioka
  • Patent number: 4452746
    Abstract: A polymerizable amino acid compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each hydrogen or methyl, R.sub.4 is C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, R.sub.5 is hydrogen or C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, or when R.sub.4 and R.sub.5 are taken together with the nitrogen atom to which they are attached, they represent a nitrogen atom containing heterocyclic group, R.sub.6 is an alkylene group having not more than 6 carbon atoms and A is --COO-- or --SO.sub.3 --, provided that when R.sub.4 is C.sub.1 -C.sub.20 alkyl, R.sub.5 is not hydrogen, which is highly soluble in water or organic solvents without any acidic or basic substance and can be introduced into the molecule of high molecular compounds.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: June 5, 1984
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Shinichi Ishikura, Tamotsu Yoshioka, Ryuzo Mizuguchi
  • Patent number: 4403065
    Abstract: An aqueous emulsion comprising a polymeric resin prepared by polymerizing (a) at least one amino acid of either one of the formula: ##STR1## and the formula: ##STR2## with (b) at least one other polymerizable monomer in an aqueous medium, the component (a) and at least a portion of the component (b) being introduced separately into the reaction system.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: September 6, 1983
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Tamotsu Yoshioka, Ryuzo Mizuguchi, Shinichi Ishikura, Keizo Ishii
  • Patent number: 4095130
    Abstract: A stator has a pair of magnetic pole portions, and a rotor having N- and S-poles is disposed between the two magnetic portions. Each magnetic pole portion of the stator has two static magnetic poles and a cut-away portion or indent formed therebetween. The stator is quadripolar statically, and bipolar dynamically.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: June 13, 1978
    Assignee: Kabushiki Kaisha Seikosha
    Inventors: Kenji Oshima, Tomohisa Matsumoto, Hiroshi Yamazaki, Tamotsu Yoshioka