Patents by Inventor Takao Michinobu

Takao Michinobu 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).

  • Publication number: 20210164130
    Abstract: An acrylic fiber for artificial hair may include an acrylic copolymer. The acrylic fiber has a fiber cross section including 2 to 4 T-shaped protrusions that extend radially from a central portion. Each of the T-shaped protrusions has an arc-shaped upper side that bulges in a direction away from the central portion. A circumradius of the fiber cross section is 40.0 to 60.0 ?m. A distance between adjacent end portions of the corresponding upper sides of the adjacent T-shaped protrusions is 3.0 to 60.0 ?m. An axial width is 10.0 ?m or more. Torsional rigidity of the acrylic fiber is 0.30 to 2.0 mg·cm2. The acrylic fiber for artificial hair has high volume, good texture, and good twist processability, and a hair ornament may include the acrylic fiber for artificial hair.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Megumi Yoshikawa, Takao Michinobu, Takeshi Tanaka
  • Publication number: 20180245244
    Abstract: A pile fabric includes a plurality of pile portions including a long pile portion and a short pile portion. The short pile portion includes first fibers, and the long pile portion includes second fibers including modified cross-section fibers A. The modified cross-section fibers A have one or more cross-sectional shapes selected from the group consisting of C-shaped cross-sectional shapes and H-shaped cross-sectional shapes, and have a single fiber fineness of 15 to 60 dtex.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Applicant: Kaneka Corporation
    Inventors: Takao Michinobu, Wataru Mio, Minoru Kuroda
  • Publication number: 20180155868
    Abstract: A pile fabric includes ground yarns constituting a ground structure; pile fibers that are tangled with the ground yarns, the pile fibers including portions standing on a front surface side of the ground structure; and an organically-modified silicone-based softener adhered to the pile fibers located on a back surface side of the pile fabric. The pile fibers include at least one selected from the group consisting of acrylic fibers and modacrylic fibers, and have a softening point lower than a softening point of the ground yarns. The portions standing on the front surface side of the ground structure are not fused to each other, and on a back surface side of the ground structure, at least part of the pile fibers located outside of the ground yarns are fused to each other.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 7, 2018
    Applicant: Kaneka Corporation
    Inventors: Takao Michinobu, Kenji Miyaki, Haruhiko Onishi, Wataru Mio
  • Patent number: 9328271
    Abstract: An adhesive resin composition, including: a base resin which comprises (A) 30-90 parts by weight of a modified ethylene-olefin copolymer, and (B) 70-10 parts by weight of a styrene thermoplastic elastomer, provided that (A)+(B) equals 100 parts by weight; and (C) a tackifier in an amount of 30-60 parts by weight per 100 parts by weight of the base resin, the modified ethylene-olefin copolymer being one which has been graft-modified with (a) an unsaturated carboxylic acid or a derivative thereof and (b) an aromatic vinyl monomer, comprises 0.1%-5% by weight of (a) the unsaturated carboxylic acid or the derivative thereof, and has a melting point peak in a range of 100-150° C. with an enthalpy of crystal fusion of 0.5-10 J/g as determined by DSC.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 3, 2016
    Assignee: KANEKA CORPORATION
    Inventors: Yasunori Okada, Takashi Matsumoto, Takao Michinobu
  • Patent number: 9205422
    Abstract: Provided is an ion-exchange fiber including a polymer A obtained by introducing an ion-exchangeable substituent to 100 parts by weight of an acrylic polymer that is obtained by polymerization of a monomer composition containing 30 % by weight or more of acrylonitrile with respect to 100 % by weight of the composition and a polymer B obtained by introducing an ion-exchangeable substituent to 1 part by weight or more and 100 parts by weight or less of an epoxy group-containing polymer. Each ion-exchangeable substituent is introduced by reaction with an amine compound and is an ion-exchangeable substituent derived from the amine compound. A method for producing the ion-exchange fiber is also provided.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: December 8, 2015
    Assignee: KANEKA CORPORATION
    Inventors: Yusuke Hirai, Wataru Mio, Masanobu Tamura, Yoshitomo Matsumoto, Takao Michinobu
  • Publication number: 20140048489
    Abstract: Provided is an ion-exchange fiber including a polymer A obtained by introducing an ion-exchangeable substituent to 100 parts by weight of an acrylic polymer that is obtained by polymerization of a monomer composition containing 30% by weight or more of acrylonitrile with respect to 100% by weight of the composition and a polymer B obtained by introducing an ion-exchangeable substituent to 1 part by weight or more and 100 parts by weight or less of an epoxy group-containing polymer. Each ion-exchangeable substituent is introduced by reaction with an amine compound and is an ion-exchangeable substituent derived from the amine compound. A method for producing the ion-exchange fiber is also provided.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 20, 2014
    Applicant: KANEKA CORPORATION
    Inventors: Yusuke Hirai, Wataru Mio, Masanobu Tamura, Yoshitomo Matsumoto, Takao Michinobu
  • Publication number: 20130264741
    Abstract: The present invention relates to a laminated adhesive film for insert molding, which includes a laminate of a tacky adhesive film containing a modified polyolefin resin and a non-tacky thermoplastic resin film. The present invention aims to provide a highly heat-resistant laminated adhesive film which can form on a metal component an adhesive layer that shows favorable adhesion to a resin to be injection-molded, by a VOC-free high-productivity method. The laminated adhesive film for insert molding of the present invention includes a laminate of a tacky adhesive film containing a modified polyolefin resin obtained through graft-modification with a monomer that contains an ethylenic double bond and a polar group in the same molecule, and a non-tacky thermoplastic resin film.
    Type: Application
    Filed: October 31, 2011
    Publication date: October 10, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Tetsuo Ookura, Takao Michinobu
  • Publication number: 20130108827
    Abstract: An adhesive resin composition, including: a base resin which comprises (A) 30-90 parts by weight of a modified ethylene-olefin copolymer, and (B) 70-10 parts by weight of a styrene thermoplastic elastomer, provided that (A)+(B) equals 100 parts by weight; and (C) a tackifier in an amount of 30-60 parts by weight per 100 parts by weight of the base resin, the modified ethylene-olefin copolymer being one which has been graft-modified with (a) an unsaturated carboxylic acid or a derivative thereof and (b) an aromatic vinyl monomer, comprises 0.1%-5% by weight of (a) the unsaturated carboxylic acid or the derivative thereof, and has a melting point peak in a range of 100-150° C. with an enthalpy of crystal fusion of 0.5-10 J/g as determined by DSC.
    Type: Application
    Filed: April 8, 2011
    Publication date: May 2, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Yasunori Okada, Takashi Matsumoto, Takao Michinobu
  • Patent number: 7994255
    Abstract: The present invention relates to a flame retardant which is a graft copolymer. The graft copolymer is obtained by polymerizing a vinyl monomer containing at least two polymerizable groups, and at least one other vinyl monomer, in the presence of polyorganosiloxane particles in a latex state. The polyorganosiloxane particles contain grafting agents that are unevenly distributed on the surface thereof. The present invention also relates to thermoplastic resins containing this flame retardant.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: August 9, 2011
    Assignee: Kaneka Corporation
    Inventors: Tomomichi Hashimoto, Akira Takaki, Kazunori Saegusa, Takao Manabe, Takao Michinobu
  • Publication number: 20080125527
    Abstract: There is provided a novel flame-retardant resin composition capable of expressing extremely high flame retardancy without a flame retardant containing a halogen atom, a phosphorus atom, a nitrogen atom, or the like. The present invention provides a composition including a thermoplastic resin mixture of an aromatic polycarbonate or the like (A) and an aromatic vinyl resin or the like (B); a silicone compound (C); and a specific metal silicate compound (D), the silicone compound (C) being represented by average chemical formula (1): R1mR2nSio(4?m?m)/2 ??(1) (wherein R1 represents a methyl group or the like; R2 represents a phenyl group or the like; and 1.1?m+n?1.7 and 0.4?n/m?2.5).
    Type: Application
    Filed: April 4, 2005
    Publication date: May 29, 2008
    Applicant: KANEKA CORPORATION
    Inventors: Hiroshi Tsuneishi, Takao Michinobu
  • Publication number: 20080073628
    Abstract: An object of the present invention is to provide a novel flame-retardant resin composition capable of exhibiting high flame retardancy without incorporation of flame retardants containing halogen atoms, phosphorus atoms, nitrogen atoms, and the like. A flame-retardant resin composition of the present invention includes a resin component composed of a polyphenylene ether resin (A) and an aromatic vinyl resin (B); a silicone compound (C) represented by the average compositional formula (1) below; and a metal silicate compound (D) having a pH of 8.0 or more and a volume-average particle size of 1 nm to 100 ?m: R1mR2nSiO(4-m-n)/2 (1) (wherein R1 represents an aliphatic hydrocarbon group; R2 represents an aromatic hydrocarbon group; and m and n each represent a number satisfying the relationships: 1.1?m+n?1.7 and 0.4?n/m?2.5).
    Type: Application
    Filed: September 27, 2005
    Publication date: March 27, 2008
    Applicant: KANEKA CORPORATION
    Inventors: Takao Michinobu, Hiroshi Tsuneishi
  • Publication number: 20070276075
    Abstract: The present invention provides a polyorganosiloxane-containing resin decreased in volatile siloxane content. A resin which contains 5% or more of volatile silicon compounds immediately after coagulation and dehydration is mixed with an organic solvent, and the resultant mixture is filtered to decrease the content of the volatile silicon compounds in the resin. Therefore, the target polyorganosiloxane-containing resin decreased in volatile siloxane content can be obtained. Mixing the polyorganosiloxane-containing resin and a thermoplastic resin and/or a thermosetting resin gives a resin composition having improved strength.
    Type: Application
    Filed: March 11, 2005
    Publication date: November 29, 2007
    Applicant: KANEKA CORPORATION
    Inventors: Akira Takaki, Takao Michinobu
  • Publication number: 20070112157
    Abstract: According to the present invention, a flame retardant can be obtained, which provides a thermoplastic resin composition excellent in flame retardancy and impact resistance, and by compounding this flame retardant in thermoplastic resin, a flame retardant resin composition excellent in flame retardancy and impact resistance can be obtained. The present invention relates to a graft copolymer containing polyorganosiloxane obtained by polymerizing 0 to 10 parts by weight of a vinyl monomer (B) comprising 100 to 20% by weight of a multi-functional monomer containing at least two polymerizable unsaturated bonds in a molecule (b-1) and 0 to 80% by weight of another copolymerizable monomer (b-2) and 5 to 70 parts by weight of a vinyl monomer (C), in the presence of 30 to 95 parts by weight of polyorganosiloxane in a latex state (A), so that the total amount of polyorganosiloxane (A), vinyl monomer (B) and vinyl monomer (C) becomes 100 parts by weight.
    Type: Application
    Filed: April 9, 2004
    Publication date: May 17, 2007
    Inventors: Tomomichi Hashimoto, Akira Takai, Kazunori Saegusa, Takao Manabe, Takao Michinobu
  • Publication number: 20060211796
    Abstract: The present invention provides a thermoplastic polyester resin composition having excellent flexural modulus, heat resistance, and impact resistance. Namely, the present invention provides a thermoplastic polyester resin composition containing 95 to 55% by weight of a thermoplastic polyester resin (A), 0.2 to 50% by weight of an inorganic filler (B), and 0.5 to 9% by weight of a polyorganosiloxane-containing graft polymer (C).
    Type: Application
    Filed: March 29, 2004
    Publication date: September 21, 2006
    Inventors: Akira Takaki, Takao Michinobu