Patents by Inventor Kazuo Suga

Kazuo Suga 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: 6812315
    Abstract: Disclosed is an oxazolidine compound represented by the following formula (1). [R1 represents a hydrocarbon group having 1 to 6 carbon atoms; R2 and R3 independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R2 and R3 combine to form an alicyclic ring or an aromatic ring; R4 and R5 independently represent a methyl group or an ethyl group; R6 represents a single bond or —(R7—NHCOO—R8—OCONH)p—, R7 and R8 independently represent a divalent organic group, and p represents an integer of 1 to 15; m represents 2 or 3; n represents an integer of 1 to 3]. A curable resin composition using the oxazolidine compound as a latent curing agent have excellent curability and excellent storage stability, in particular, excellent storage stability in a state where the resin composition contains only the curable ingredient(s) and the latent curing agent.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: November 2, 2004
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kazuo Suga
  • Publication number: 20030187176
    Abstract: Disclosed is an oxazolidine compound represented by the following formula (1).
    Type: Application
    Filed: March 4, 2003
    Publication date: October 2, 2003
    Inventor: Kazuo Suga
  • Publication number: 20030105266
    Abstract: A curable resin composition of the present invention has a compound having two or more blocked isocyanate groups where the isocyanate group is blocked by a blocking agent and the dissociation temperature between the isocyanate group and the blocking agent is 140° C. or less, or a compound having two or more free isocyanate groups, and a nylon salt (I), (II) or (III), which has a specific chemical structure, and it has extremely excellent storage stability and low-temperature curing property which are compatible with each other. Also, a curable resin composition which is obtained by allowing the above composition to contain an epoxy compound is provided, so that excellent weatherability is obtained in addition to the storage stability and the low-temperature curing property.
    Type: Application
    Filed: October 30, 2002
    Publication date: June 5, 2003
    Inventor: Kazuo Suga
  • Patent number: 6559269
    Abstract: A curable resin composition which has excellent curability and storage stability, and in particular, which has improved storage stability under the condition where the resin composition only contains the resin component and the latent curing agent. A curable resin composition having a resin component having oxirane ring and thiirane ring at a ratio (oxirane ring/thiirane ring) of 95/5 to 1/100; and an oxazolidine compound represented by the following formula (1): wherein R1 represents a hydrocarbon group having 1 to 6 carbon atoms, and R2 and R3 independently represent hydrogen atom or a monovalent hydrocarbon group having 1 to 15 carbon atoms, or together form an alicyclic ring or an aromatic ring.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: May 6, 2003
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hiroyuki Okuhira, Kazuo Suga
  • Publication number: 20020183461
    Abstract: A curable resin composition which has excellent curability and storage stability, and in particular, which has improved storage stability under the condition where the resin composition only contains the resin component and the latent curing agent.
    Type: Application
    Filed: March 7, 2002
    Publication date: December 5, 2002
    Inventors: Hiroyuki Okuhira, Kazuo Suga
  • Patent number: 6397912
    Abstract: A pneumatic tire having an air permeation preventive layer comprising a low permeability thermoplastic elastomer composition comprising a thermoplastic elastomer having a thermoplastic resin composition as a continuous phase and a rubber composition as a dispersed phase, in which a barrier resin composition is contained, which low permeability thermoplastic elastomer composition has a phase structure in which the barrier resin composition is dispersed in the form of a flat state in the thermoplastic elastomer, is abundant in flexibility, is superior in gas permeation preventive property, and enables the tire to be reduced in weight.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 4, 2002
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Jiro Watanabe, Noriaki Kuroda, Gou Kawaguchi, Tetsuji Kawazura, Hidekazu Takeyama, Yoshihiro Soeda, Kazuo Suga, Yoshiaki Hashimura, Osamu Ozawa
  • Patent number: 6244317
    Abstract: A pneumatic tire having an air permeation preventive layer comprising (A) a thin film of at least one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups, (B) a thin film obtained from the curing a liquid composition containing (i) a multi component copolymer polyamide resin, (ii) a curable resin, and (iii) a curing agent for curing the curable resin, (C) a thin film obtained by coating and cross-linking a polymer composition containing (i) at least-one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups and/or groups having curable unsaturated bonds and (ii) at least one cross-linking agent and/or curable resin other than an acid, or (D) a thin film of a vinylidene chloride-acrylonitrile copolymer obtained by copolymerizing 5 to 50 molar % of acrylonitrile.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 12, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuto Yamakawa, Osamu Ozawa, Kazuo Suga, Hidekazu Takeyama
  • Patent number: 6179941
    Abstract: A pneumatic tire having an air permeation preventive layer comprising (A) a thin film of at least one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups, (B) a thin film obtained from the curing a liquid composition containing (i) a multi component copolymer polyamide resin, (ii) a curable resin, and (iii) a curing agent for curing the curable resin, (C) a thin film obtained by coating and cross-linking a polymer composition containing (i) at least one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups and/or groups having curable unsaturated bonds and (ii) at least one cross-linking agent and/or curable resin other than an acid, or (D) a thin film of a vinylidene chloride-acrylonitrile copolymer obtained by copolymerizing 5 to 50 molar % of acrylonitrile.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: January 30, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuto Yamakawa, Osamu Ozawa, Kazuo Suga, Hidekazu Takeyama
  • Patent number: 6062283
    Abstract: A pneumatic tire having an air permeation preventive layer comprising a low permeability thermoplastic elastomer composition comprising a thermoplastic elastomer having a thermoplastic resin composition as a continuous phase and a rubber composition as a dispersed phase, in which a barrier resin composition is contained, which low permeability thermoplastic elastomer composition has a phase structure in which the barrier resin composition is dispersed in the form of a flat state in the thermoplastic elastomer, is abundant in flexibility, is superior in gas permeation preventive property, and enables the tire to be reduced in weight.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: May 16, 2000
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Jiro Watanabe, Noriaki Kuroda, Gou Kawaguchi, Tetsuji Kawazura, Hidekazu Takeyama, Yoshihiro Soeda, Kazuo Suga, Yoshiaki Hashimura, Osamu Ozawa
  • Patent number: 6024816
    Abstract: A pneumatic tire having an air permeation preventive layer comprising (A) a thin film of at least one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups, (B) a thin film obtained from the curing a liquid composition containing (i) a multi component copolymer polyamide resin, (ii) a curable resin, and (iii) a curing agent for curing the curable resin, (C) a thin film obtained by coating and cross-linking a polymer composition containing (i) at least one aliphatic polyamide resin wherein at least part of the amide groups thereof are modified with alkoxyalkyl groups and/or groups having curable unsaturated bonds and (ii) at least one cross-linking agent and/or curable resin other than an acid, or (D) a thin film of a vinylidene chloride-acrylonitrile copolymer obtained by copolymerizing 5 to 50 molar % of acrylonitrile.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: February 15, 2000
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuto Yamakawa, Osamu Ozawa, Kazuo Suga, Hidekazu Takeyama
  • Patent number: 4699930
    Abstract: The present invention is a cosmetic composition that raffinose ester of higher fatty acid having carbon atoms from 14 to 20 and cane sugar fatty acid ester are used in parallel, further solcoseryl is compounded to the above. The composition according to the present invention are stable and do not give the irritation on the skin, has no variable nature and has an excellent moisture retaining ability, and then can give the cosmetics which the feeling obtained by employing said cosmetics is very satisfactory. Further the solcoseryl that the substance which deoxyribonucleic acid is dissolved in the raffinose ester of higher fatty acid is added under the sterile condition can be compounded in this cosmetic composition.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: October 13, 1987
    Inventor: Kazuo Suga