Patents by Inventor Mitsumasa Matsushita

Mitsumasa Matsushita 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: 9150414
    Abstract: A nanocomposite comprises a nanostructure, and a copolymer adsorbed to the nanostructure and containing at least one ionic monomer unit and a different monomer unit from the ionic monomer unit; the ionic monomer unit selected from the group consisting of a zwitterionic monomer unit and a cationic monomer unit which are represented by the following formula (1): (in the formula (1), R1, R2, and R3 each independently represent any one of a hydrogen atom and a monovalent organic group having 1 to 20 carbon atoms, Y1 represents any one of a carbonyl group and an arylene group, Y2 represents any one of —O— and —NH—, n is 0 or 1, R4 represents a divalent organic group having 1 to 20 carbon atoms, and X represents any one of a zwitterionic group and a cationic group).
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: October 6, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takuya Morishita, Kenzo Fukumori, Mitsumasa Matsushita, Yoshihide Katagiri
  • Patent number: 8859668
    Abstract: A resin composition comprises a carbon-based nanofiller (A), a modified polyolefin-based polymer (B), and two or more resins (C) other than the modified polyolefin-based polymer (B), the resin composition comprising a dispersed phase formed from a resin (Caff) which has a highest affinity for the carbon-based nanofiller (A) among the two or more resins (C), and a continuous phase formed from the remaining one or more resins (C1), wherein at least part of the modified polyolefin-based polymer (B) is present at an interface between the dispersed phase and the continuous phase, and the carbon-based nanofiller (A) is present in the dispersed phase.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Takuya Morishita, Mitsumasa Matsushita, Yoshihide Katagiri, Kenzo Fukumori, Minoru Takahara, Takashi Ohta
  • Patent number: 8796371
    Abstract: A resin composition includes 0.1 to 40% by mass of a carbon-based nanofiller, 5 to 90% by mass of a resin, and 5 to 90% by mass of calcium fluoride.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 5, 2014
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenzo Fukumori, Mitsumasa Matsushita, Yoshihide Katagiri, Takuya Morishita, Koji Nakanishi, Takashi Nagase, Joji Yoshimura, Yasuhiro Ueno, Hisayoshi Chiba, Naoki Yoshida
  • Publication number: 20130131252
    Abstract: A resin composition includes 0.1 to 40% by mass of a carbon-based nanofiller, 5 to 90% by mass of a resin, and 5 to 90% by mass of calcium fluoride.
    Type: Application
    Filed: August 9, 2011
    Publication date: May 23, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Kenzo Fukumori, Mitsumasa Matsushita, Yoshihide Katagiri, Takuya Morishita, Koji Nakanishi, Takashi Nagase, Joji Yoshimura, Yasuhiro Ueno, Hisayoshi Chiba, Naoki Yoshida
  • Publication number: 20120053288
    Abstract: A nanocomposite comprises a nanostructure, and a copolymer adsorbed to the nanostructure and containing at least one ionic monomer unit and a different monomer unit from the ionic monomer unit; the ionic monomer unit selected from the group consisting of a zwitterionic monomer unit and a cationic monomer unit which are represented by the following formula (1): (in the formula (1), R1, R2, and R3 each independently represent any one of a hydrogen atom and a monovalent organic group having 1 to 20 carbon atoms, Y1 represents any one of a carbonyl group and an arylene group, Y2 represents any one of —O— and —NH—, n is 0 or 1, R4 represents a divalent organic group having 1 to 20 carbon atoms, and X represents any one of a zwitterionic group and a cationic group).
    Type: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takuya Morishita, Kenzo Fukumori, Mitsumasa Matsushita, Yoshihide Katagiri
  • Publication number: 20110152435
    Abstract: A resin composition comprises a carbon-based nanofiller (A), a modified polyolefin-based polymer (B), and two or more resins (C) other than the modified polyolefin-based polymer (B), the resin composition comprising a dispersed phase formed from a resin (Caff) which has a highest affinity for the carbon-based nanofiller (A) among the two or more resins (C), and a continuous phase formed from the remaining one or more resins (C1), wherein at least part of the modified polyolefin-based polymer (B) is present at an interface between the dispersed phase and the continuous phase, and the carbon-based nanofiller (A) is present in the dispersed phase.
    Type: Application
    Filed: September 18, 2009
    Publication date: June 23, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takuya Morishita, Mitsumasa Matsushita, Yoshihide Katagiri, Kenzo Fukumori, Minoru Takahara, Takashi Ohta
  • Patent number: 7465762
    Abstract: A polyolefin composite material comprising a polyolefin-based resin, an onium-modified low molecular weight polyolefin-based resin containing an organic onium group as a functional group and having a number average molecular weight of 500 to 30,000, and a layered clay mineral.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 16, 2008
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Kato, Mitsumasa Matsushita, Kenzo Fukumori, Keisuke Ohnishi, Takayuki Nagai
  • Publication number: 20050222316
    Abstract: A polyolefin composite material comprising a polyolefin-based resin, an onium-modified low molecular weight polyolefin-based resin containing an organic onium group as a functional group and having a number average molecular weight of 500 to 30,000, and a layered clay mineral.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 6, 2005
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Kato, Mitsumasa Matsushita, Kenzo Fukumori, Keisuke Ohnishi, Takayuki Nagai
  • Patent number: 6777453
    Abstract: The object of the present invention is to provide a method of reclaiming crosslinked rubber wherein a reduction of qualities due to generation of decomposed products hardly occurs, and a molding of reclaimed rubber. In a reclamation step of reclaiming crosslinked rubber 10 by applying shear stress thereto and/or in a subsequent step in the present invention, a degasification carrier is introduced and decomposed products in the crosslinked rubber 10 are removed together with the degasification carrier. Also the disclosed is a molding of reclaimed rubber prepared by re-crosslinking reclaimed rubber obtained by this method.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: August 17, 2004
    Assignees: Kabushiki Kaisha Toyota Chuo Kenyusho, Toyoda Gosei Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Makoto Mouri, Hirotaka Okamoto, Kenzo Fukumori, Norio Sato, Toru Yoshida, Masahito Fukuta, Hidenobu Honda, Katsumi Nakashima, Tamotsu Watanabe, Yasuyuki Suzuki, Masao Owaki
  • Patent number: 6632918
    Abstract: The object of the present invention is to provide a method of reclaiming crosslinked rubber, which can reclaim various kinds of crosslinked rubbers whose reclamation is difficult. The method of reclaiming crosslinked rubber 10 of the present invention includes a step of reclaiming crosslinked rubber by applying shear stress to the crosslinked rubber 10, wherein the maximum pressure in the reclaiming step is 1.5 MPa or more.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: October 14, 2003
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyoda Gosei Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Makoto Mouri, Hirotaka Okamoto, Kenzo Fukumori, Norio Sato, Masahito Fukuta, Hidenobu Honda, Katsumi Nakashima, Tamotsu Watanabe, Shigeki Otsuka, Masao Owaki
  • Patent number: 6316508
    Abstract: The present invention provides a rubber composition containing a reclaimed rubber and a method for producing the same. A rubber molded article having excellent rubber properties can be obtaining and the recycling of a used rubber product can be promoted by the present invention. A rubber composition of the present invention is a blend comprising a reclaimed rubber obtained by applying a heat and a shear stress to a vulcanized rubber, a non-vulcanized virgin rubber or/and a thermoplastic resin, wherein the reclaimed rubber contains 40% by weight or more of a residual toluene-insoluble gel component and the network chain density of the rubber in the component is 1/20 to 1/4 based on the network chain density of the rubber of the vulcanized rubber.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 13, 2001
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Toyoda Gosei Co., Ltd.
    Inventors: Mitsumasa Matsushita, Makoto Mouri, Hirotaka Okamoto, Norio Sato, Yasuyuki Suzuki, Masao Owaki, Noriyuki Suzuki, Katsumi Nakashima, Hidenobu Honda, Toru Yoshida, Katsumasa Takeuchi
  • Patent number: 6207723
    Abstract: The present invention provides a rubber composition containing a reclaimed rubber and a method for producing the same. A rubber molded article having excellent rubber properties can be obtained and the recycling of a used rubber product can be promoted by the present invention. A rubber composition of the present invention is a blend comprising a claimed rubber obtained by applying a heat and a shear stress to a vulcanized rubber, a non-vulcanized virgin rubber or/and a thermoplastic resin, wherein the reclaimed rubber contains 40% by weight or more of a residual toluene-insoluble gel component and the network chain density of the rubber in the gel component is 1/20 to 1/4 based on the network chain density of the rubber of the vulcanized rubber.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: March 27, 2001
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Toyoda Gosei Co., Ltd.
    Inventors: Mitsumasa Matsushita, Makoto Mouri, Hirotaka Okamoto, Norio Sato, Yasuyuki Suzuki, Masao Owaki, Noriyuki Suzuki, Katsumi Nakashima, Hidenobu Honda, Toru Yoshida, Katsumasa Takeuchi
  • Patent number: 6015856
    Abstract: A composite resin material exhibiting excellent physical properties, which is formed by adding semi-rigid or rigid polyurethane resin waste to a thermoplastic reactive resin, a nonreactive resin, a polymer alloy or the like. A first kind of the composite resin material is composed of a crosslinking polyurethane resin and a reactive resin, a nonreactive resin or a polymer alloy, which is formed by kneading the crosslinking polyurethane resin and the reactive resin, the nonreactive resin or the polymer alloy at a predetermined temperature or more. A second kind of the composite resin material is composed of a hydrolysis product of crosslinking polyurethane resin and a solid filler, which are mixed with a nonreactive resin and a polymer alloy by kneading.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: January 18, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Takumi Taniguchi, Takashi Ohta, Norio Sato, Yuji Hoshino, Kanemitsu Kondo, Naruaki Abe, Toshiyuki Suzuki
  • Patent number: 5958988
    Abstract: A cross-linked polyurethane resin powder includes a powder including particles made from a hard or a semi-hard polyurethane resin. The particles have a superficial portion and an internal portion disposed inside the superficial portion, and involve cross-linked bondings therein. Part of the cross-linked bondings are unchanged, and another part thereof are broken to result in activated groups. At least part of the activated groups are exposed on the superficial portion of the particles. The cross-linked polyurethane resin powder is produced by hydrolyzing a hard or semi-hard polyurethane resin in the presence of water and in a temperature range of from a hydrolysis temperature of the resin to a liquefying temperature thereof, and by applying a predetermined shearing force to the resin. The cross-linked polyurethane resin powder can disperse well in resinous substrates, and can upgrade the physical properties of the resulting recycled products.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: September 28, 1999
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsumasa Matsushita, Takumi Taniguchi, Takashi Ohta, Norio Sato, Yuji Hoshino, Kanemitsu Kondo, Naruaki Abe, Toshiyuki Suzuki
  • Patent number: 5476624
    Abstract: A process for reclaiming waste plastics having a paint film which includes subjecting the paint film to a hydrolysis treatment by immersing the waste plastics having a urethane paint film or an amino resin paint film in a treating liquid, or contacting the waste plastics with the vapor of a treating liquid, to decompose the paint into lower molecular weight compounds. The resulting waste plastics are then heated and kneaded to disperse the products of the hydrolysis in the waste plastics, and there is recovered a reclaimed waste plastics product having good mechanical properties.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: December 19, 1995
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota-Jidosha Kabushiki Kaisha
    Inventors: Norio Sato, Shigetoshi Sugiyama, Takashi Ohta, Mitsumasa Matsushita, Shoichi Suzuki, Takeyoshi Nishio, Toshio Yokoi
  • Patent number: 5348929
    Abstract: The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer solution; adding a crosslinking agent to said polymer solution to allow said organic polymer to react in the presence of said crosslinking agent; and collecting, after the completion of the crosslinking reaction, the resultant fine polymer gel particles.The invention also relates to a porous fuel absorbent produced by the above process comprised of fine cross-linked organic polymer formed into particles. The above fuel absorbent along with coatings and a carrier may be used to control fuel evaporation loss in automobile canisters or boiler fuel tanks.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: September 20, 1994
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hiroshi Ito, Koji Sasaki, Tadaoki Okumoto, Takashi Ohta, Mitsumasa Matsushita, Norio Sato
  • Patent number: 5174938
    Abstract: The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer solution; adding a crosslinking agent to said polymer solution to allow said organic polymer to react in the presence of said crosslinking agent; and collecting, after the completion of the crosslinking reaction, the resultant fine polymer gel particles. The invention also relates to a porous fuel absorbent produced by the above process comprised of fine cross-linked organic polymer formed into particles. The above fuel absorbent along with the coatings and a carrier may be used to control fuel evaporation loss in automobile canisters or boiler fuel tanks.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: December 29, 1992
    Assignees: Toyoda Gosei Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hiroshi Ito, Koji Sasaki, Tadaoki Okumoto, Takashi Ohta, Mitsumasa Matsushita, Norio Sato
  • Patent number: 4560716
    Abstract: Epoxy resin compositions including an epoxy resin, a hardener and an additive for forming a rust preventing film are provided. The additive is at least one selected from dithiophosphoric acids, dithiophosphoric acid derivatives, metal salts of dithiocarbamic acids and oxidized waxes. The composition may also include a secondary additive such as an organosilicon compound, an organoaluminum compound or an organotitanium compound for dithiophosphoric acid and/or dithiophosphoric acid derivative; an alkylarylsilsesquioxane silicone compound for a metal salt of dithiocarbamic acid; an alkylarylsilsesquioxane silicone compound, an organoaluminum compound, an organotitanium compound or an organotin compound for an oxidized wax. These epoxy resin compositions, when used as encapsulating materials, prevent moisture and impurities from penetrating into the surface of an encapsulated product because of the rust preventing film existing between the composition and the encapsulated product.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: December 24, 1985
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shigeyuki Sato, Mitsumasa Matsushita
  • Patent number: 4552907
    Abstract: Epoxy resin compositions including an epoxy resin, a hardener and an additive containing a rust preventing film forming component are provided. The additive is lanolin and/or a lanolin derivative. Optionally, the composition also includes a secondary additive selected from organosilicon compounds, organoaluminum compounds, organotitantium compounds, organotin compounds, liquid rubber having functional groups at both ends of the molecule, petroleum lubricating oils or Japan wax. These epoxy resin compositions, when used as encapsulating materials, prevent moisture and impurities from invading the surface of the device.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: November 12, 1985
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shigeyuki Sato, Mitsumasa Matsushita