Patents by Inventor Yoshikazu Suda

Yoshikazu Suda 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: 7488776
    Abstract: A thermoplastic crosslinked rubber composition comprising (A) from 1 to 99 parts by weight of a hydrogenated rubber obtained by hydrogenating not less than 50% of total double bonds of at least one homopolymer rubber of a conjugated diene type monomer or a random copolymer rubber consisting of a conjugated diene type monomer unit and an aromatic vinyl monomer unit and (B) from 1 to 99 parts by weight of an olefinic thermoplastic resin, total amount of (A) and (B) being 100 parts by weight, said (A) being partially or completely crosslinked, wherein said (A) is crystalline rubber, having a crystallization temperature in a range of from ?50 to 70° C. and a heat quantity of crystallization at peak in a range of from 3 to 100 J/g in differential scanning calorimetry (DSC method).
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: February 10, 2009
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hajime Nishihara, Yoshikazu Suda, Ikuji Ohtani, Sigeru Sasaki
  • Publication number: 20030181594
    Abstract: A thermoplastic crosslinked rubber composition comprising (A) from 1 to 99 parts by weight of a hydrogenated rubber obtained by hydrogenating not less than 50% of total double bonds of at least one homopolymer rubber of a conjugated diene type monomer or a random copolymer rubber consisting of a conjugated diene type monomer unit and an aromatic vinyl monomer unit and (B) from 1 to 99 parts by weight of an olefinic thermoplastic resin, total amount of (A) and (B) being 100 parts by weight, said (A) being partially or completely crosslinked, wherein said (A) is crystalline rubber, having a crystallization temperature in a range of from −50 to 70° C. and a heat quantity of crystallization at peak in a range of from 3 to 100 J/g in differential scanning calorimetry (DSC method).
    Type: Application
    Filed: March 19, 2003
    Publication date: September 25, 2003
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Hajime Nishihara, Yoshikazu Suda, Ikuji Ohtani, Sigeru Sasaki
  • Patent number: 6555624
    Abstract: A thermoplastic crosslinked rubber composition comprising (A) from 1 to 99 parts by weight of a hydrogenated rubber obtained by hydrogenating not less than 50% of total double bonds of at least one homopolymer rubber of a conjugated diene type monomer or a random copolymer rubber consisting of a conjugated diene type monomer unit and an aromatic vinyl monomer unit and (B) from 1 to 99 parts by weight of an olefinic thermoplastic resin, total amount of (A) and (B) being 100 parts by weight, said (A) being partially or completely crosslinked, wherein said (A) is crystalline rubber, having a crystallization temperature in a range of from −50 to 70° C. and a heat quantity of crystallization at peak in a range of from 3 to 100 J/g in differential scanning calorimetry (DSC method).
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: April 29, 2003
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hajime Nishihara, Yoshikazu Suda, Ikuji Ohtani, Sigeru Sasaki
  • Publication number: 20020045710
    Abstract: A thermoplastic crosslinked rubber composition comprising (A) from 1 to 99 parts by weight of a hydrogenated rubber obtained by hydrogenating not less than 50% of total double bonds of at least one homopolymer rubber of a conjugated diene type monomer or a random copolymer rubber consisting of a conjugated diene type monomer unit and an aromatic vinyl monomer unit and (B) from 1 to 99 parts by weight of an olefinic thermoplastic resin, total amount of (A) and (B) being 100 parts by weight, said (A) being partially or completely crosslinked, wherein said (A) is crystalline rubber, having a crystallization temperature in a range of from −50 to 70° C. and a heat quantity of crystallization at peak in a range of from 3 to 100 J/g in differential scanning calorimetry (DSC method).
    Type: Application
    Filed: August 15, 2001
    Publication date: April 18, 2002
    Inventors: Hajime Nishihara, Yoshikazu Suda, Ikuji Ohtani, Sigeru Sasaki
  • Patent number: 4359551
    Abstract: A hot-melt pressure-sensitive adhesive composition comprising (a) 100 parts by weight of a specific grafted block copolymer material formed by the graft reaction of at least one block copolymer comprising at least one polybutadiene or polyisoprene block and at least two polystyrene blocks with at least one unsaturated carboxylic acid monomer and/or derivative monomer thereof and (b) 50 to 250 parts by weight of a specific tackifier mixture consisting of a tackifier S comprising at least 50% by weight of a terpene resin having a softening point of 60.degree. C. or more and a tackifier L comprising at least 50% by weight of a terpene resin having a softening point of 30.degree. C. or less and having an S/L mixing weight ratio of 9/1 to 3/7, and optionally 1 to 50 parts by weight of a softening agent has been found to be excellent in holding power especially for paper.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: November 16, 1982
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Yoshikazu Suda, Haruhisa Nagano, Shigeyuki Miyata, Akio Yamori
  • Patent number: 4122269
    Abstract: 1,3,6-Tris(4,6-diamino-1,3,5-triazine-2-yl)hexane, and a flame retardant resin composition comprising (A) about 5 to about 100 parts by weight of 1,3,6-tris(4,6-diamino-1,3,5-triazine-2-yl)hexane and (B) 100 parts by weight of a thermosetting resin or a thermoplastic resin.
    Type: Grant
    Filed: July 26, 1977
    Date of Patent: October 24, 1978
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masazumi Chono, Hideo Ai, Michihiro Aboshi, Yoshikazu Suda, Naoji Yoshii