Patents by Inventor Tomoyuki Fujisawa

Tomoyuki Fujisawa 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: 9758664
    Abstract: An automotive interior part includes a thermoplastic resin composition containing a prescribed acetone insoluble fraction (A) and a prescribed acetone soluble fraction (B), in which a content of the acetone insoluble fraction (A) is 5 to 18% by mass based on 100% by mass of a sum of the acetone insoluble fraction (A) and the acetone soluble fraction (B).
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 12, 2017
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tatsuya Matsumoto, Tomoyuki Fujisawa, Ryoko Hirashima
  • Patent number: 9725587
    Abstract: An injection molded article obtained by injection molding a thermoplastic resin composition comprising 100 parts by mass of a thermoplastic resin and 50 parts by mass or less of at least one of a filler and a colored metallic pigment, wherein at least one weld exists, and a long diameter of 95% by mass or more of the filler existing within a cross-sectional depth of 50 ?m or less from a surface of the weld is parallel to the surface of the weld.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 8, 2017
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Tatsuo Abe
  • Publication number: 20160264770
    Abstract: An automotive interior parts includes a thermoplastic resin composition containing a prescribed acetone insoluble fraction (A) and a prescribed acetone soluble fraction (B), in which a content of the acetone insoluble fraction (A) is 5 to 18% by mass based on 100% by mass of a sum of the acetone insoluble fraction (A) and the acetone soluble fraction (B).
    Type: Application
    Filed: November 5, 2014
    Publication date: September 15, 2016
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tatsuya Matsumoto, Tomoyuki Fujisawa, Ryoko Hirashima
  • Patent number: 9273204
    Abstract: An uncoated, highly reflective, impact-resistant injection-molded article which comprises a rubber ingredient (A) and a thermoplastic resin (B), characterized in that (1) the rubber ingredient (A) has been dispersed in the thermoplastic resin (B), (2) the rubber ingredient (A) has a coefficient of linear expansion of 12.5×10?5 to 19×10?5/° C., (3) the surface of the injection-molded article has a reflected-image clarity of 60-100%, and (4) the injection-molded article has a notched Charpy impact strength of 5-60 kJ/m2.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: March 1, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Mihoko Yamamoto, Hiroharu Itaya
  • Patent number: 9187626
    Abstract: The present invention is an uncoated housing in which a molded product formed from a thermoplastic resin composition (D) containing 20-60% by mass of an acetone insoluble resin component (A), which contains a rubber component (a) with an average particle size of 0.05-0.3 ?m and has a coefficient of linear expansion of 11×10?5-20.5×10?5, 40-80% by mass of an acetone soluble resin component (B) (here, (A)+(B)=100% by mass), and a colorant (C), with (1) the acetone soluble resin component (B) containing 6.0-45% by mass of an unsaturated nitrile monomer derived component and (2) 2-20% by mass of a component with a molecular weight of 70,000 or less by gel permeation chromatography (GPC) measurements being contained in the acetone soluble resin component (B). On the basis of JIS K7105, the L* value for this uncoated housing is 13 or less, the luster 60-120%, and the haze value 30-90%.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 17, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Hiroharu Itaya
  • Publication number: 20150247037
    Abstract: A thermoplastic resin composition comprising: (A) a graft copolymer obtained by grafting, onto a rubber polymer, at least one monomer selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer and other copolymerizable monomers; (B) a polymer obtained by polymerizing at least one monomer selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer and other copolymerizable monomers; (C) an amorphous polyester; and (D) an aromatic polycarbonate, wherein the component (C) comprises a diol component, a 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) residue is contained in an amount of 10 to 70 mol % and a 1,4-cyclohexanedimethanol (CHDM) residue is contained in an amount of 30 to 90 mol %, provided that the total mol % of the diol components is regarded as 100 mol %.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 3, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Akiko Sugioka, Tomoyuki Fujisawa
  • Publication number: 20150065637
    Abstract: A thermoplastic resin composition which contains (A) a graft copolymer that is obtained by grafting at least two kinds of monomers, which are selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers and other copolymerizable monomers, onto a rubbery polymer, (B) a polymer that is obtained by polymerizing at least two kinds of monomers, which are selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers and other copolymerizable monomers, and (C) a polyester that contains at least an alicyclic diol and an aromatic dicarboxylic acid. When the total of the components (A)-(C) is taken at 100% by mass, the component (A) is 15-50% by mass; and the component (A) has a linear expansion coefficient of from 12.5×10?5/° C. to 19×10?5/° C.
    Type: Application
    Filed: March 29, 2013
    Publication date: March 5, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Akiko Sugioka, Tomoyuki Fujisawa
  • Patent number: 8829104
    Abstract: Disclosed is a styrene-based resin composition that comprises 5-20 parts by mass of (D) a fire retardant per 100 parts by mass of a resin composition (1) that comprises 30-51 mass % of (A) a graft copolymer obtained by graft polymerization of a diene rubber polymer with an aromatic vinyl monomer and an unsaturated nitrile monomer, 10-55 mass % of (B) a copolymer comprising two or more monomers selected from among aromatic vinyl monomers, unsaturated nitrile monomers and unsaturated carboxylic acid alkyl ester monomers, and 15 to 39% by mass of a copolymer (C) comprising one kind of unsaturated carboxylic acid alkyl ester monomers, or two or more unsaturated carboxylic acid alkyl ester monomers, ((A)+(B)+(C)=100 mass %), wherein the diene rubber polymer constitutes 15-25 mass % of the resin composition (1).
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: September 9, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Tomoyuki Fujisawa, Mihoko Yamamoto
  • Publication number: 20140186565
    Abstract: The present invention is an uncoated housing in which a molded product formed from a thermoplastic resin composition (D) containing 20-60% by mass of an acetone insoluble resin component (A), which contains a rubber component (a) with an average particle size of 0.05-0.3 ?m and has a coefficient of linear expansion of 11×10?5-20.5×10?5, 40-80% by mass of an acetone soluble resin component (B) (here, (A)+(B)=100% by mass), and a colorant (C), with (1) the acetone soluble resin component (B) containing 6.0-45% by mass of an unsaturated nitrile monomer derived component and (2) 2-20% by mass of a component with a molecular weight of 70,000 or less by gel permeation chromatography (GPC) measurements being contained in the acetone soluble resin component (B). On the basis of JIS K7105, the L* value for this uncoated housing is 13 or less, the luster 60-120%, and the haze value 30-90%.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 3, 2014
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Hiroharu Itaya
  • Publication number: 20130203932
    Abstract: An injection molded article obtained by injection molding a thermoplastic resin composition comprising 100 parts by mass of a thermoplastic resin and 50 parts by mass or less of at least one of a filler and a colored metallic pigment, wherein at least one weld exists, and a long diameter of 95% by mass or more of the filler existing within a cross-sectional depth of 50 ?m or less from a surface of the weld is parallel to the surface of the weld.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 8, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Tatsuo Abe
  • Publication number: 20130184409
    Abstract: An uncoated, highly reflective, impact-resistant injection-molded article which comprises a rubber ingredient (A) and a thermoplastic resin (B), characterized in that (1) the rubber ingredient (A) has been dispersed in the thermoplastic resin (B), (2) the rubber ingredient (A) has a coefficient of linear expansion of 12.5×10?5 to 19×10?5/° C., (3) the surface of the injection-molded article has a reflected-image clarity of 60-100%, and (4) the injection-molded article has a notched Charpy impact strength of 5-60 kJ/m2.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 18, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Mihoko Yamamoto, Hiroharu Itaya
  • Publication number: 20130012646
    Abstract: Disclosed is a styrene-based resin composition that comprises 5-20 parts by mass of (D) a fire retardant per 100 parts by mass of a resin composition (1) that comprises 30-51 mass % of (A) a graft copolymer obtained by graft polymerization of a diene rubber polymer with an aromatic vinyl monomer and an unsaturated nitrile monomer, 10-55 mass % of (B) a copolymer comprising two or more monomers selected from among aromatic vinyl monomers, unsaturated nitrile monomers and unsaturated carboxylic acid alkyl ester monomers, and 15 to 39% by mass of a copolymer (C) comprising one kind of unsaturated carboxylic acid alkyl ester monomers, or two or more unsaturated carboxylic acid alkyl ester monomers, ((A)+(B)+(C)=100 mass %), wherein the diene rubber polymer constitutes 15-25 mass % of the resin composition (1).
    Type: Application
    Filed: March 18, 2011
    Publication date: January 10, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyuki Fujisawa, Mihoko Yamamoto
  • Patent number: 7773426
    Abstract: Erasing is performed with respect to a nonvolatile memory cell without causing depletion halfway therethrough. A control circuit for reversibly and variably controlling the threshold voltage of the nonvolatile memory cell by electrical erasing and writing controls an erase process of performing erasing to the plurality of nonvolatile memory cells assigned to one unit in an erase operation, a first write process of performing writing to the nonvolatile memory cell exceeding a pre-write-back level before a depletion level, and a second write process of performing writing to the nonvolatile memory cell exceeding a write-back level after the first write process. Since the occurrence of depletion is suppressed by successively performing the first write process with respect to the nonvolatile memory cells which may exceed the depletion level in the erase process, erasing can be performed to the nonvolatile memory cell without causing depletion halfway therethrough.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 10, 2010
    Assignee: Renesas Technology Corporation
    Inventors: Ken Matsubara, Yoshinori Takase, Tomoyuki Fujisawa
  • Patent number: 7742334
    Abstract: A memory cell of a memory array stores two bits. A memory array sense amplifier provides two bits in a verify operation. Two bits in a page buffer stores a write target value for the corresponding memory cell. Each bit in a mask buffer stores a value defining processing to be effected on the corresponding memory cell. A write driver applies a write pulse when the bit in the mask buffer corresponding to the selected memory cell is “0”. A verify circuit compares the two bits provided from the memory array sense amplifier with the corresponding two bits in the page buffer, and changes the corresponding bit in the mask buffer from “0” to “1” when the result of the comparison represents matching.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: June 22, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tomoyuki Fujisawa, Hikaru Shibahara, Hidenori Mitani, Akihiko Kanda
  • Patent number: 7581058
    Abstract: A non-volatile storage device (1) has non-volatile memory units (FARY0 to FARY3), buffer units (BMRY0 to BMRY3) and a control unit (CNT), and the control unit can control a first access processing between an outside and the buffer unit and a second access processing between the non-volatile memory unit and the buffer unit upon receipt of directives from the outside separately from each other. The control unit can independently carry out an access control over the non-volatile memory unit and the buffer unit in accordance with the directives sent from the outside, respectively. Therefore, it is possible to set up next write data to the buffer unit simultaneously with the erase operation of the non-volatile memory unit or to output once read storage information to the buffer unit at a high speed as in a cache memory operation in accordance with the directive sent from the outside.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: August 25, 2009
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Yoshinori Takase, Keiichi Yoshida, Takashi Horii, Atsushi Nozoe, Takayuki Tamura, Tomoyuki Fujisawa, Ken Matsubara
  • Publication number: 20090129149
    Abstract: A memory cell of a memory array stores two bits. A memory array sense amplifier provides two bits in a verify operation. Two bits in a page buffer stores a write target value for the corresponding memory cell. Each bit in a mask buffer stores a value defining processing to be effected on the corresponding memory cell. A write driver applies a write pulse when the bit in the mask buffer corresponding to the selected memory cell is “0”. A verify circuit compares the two bits provided from the memory array sense amplifier with the corresponding two bits in the page buffer, and changes the corresponding bit in the mask buffer from “0” to “1” when the result of the comparison represents matching.
    Type: Application
    Filed: June 25, 2007
    Publication date: May 21, 2009
    Inventors: Tomoyuki Fujisawa, Hikaru Shibahara, Hidenori Mitani, Akihiko Kanda
  • Patent number: 7518929
    Abstract: A memory cell of a memory array stores two bits. A memory array sense amplifier provides two bits in a verify operation. Two bits in a page buffer stores a write target value for the corresponding memory cell. Each bit in a mask buffer stores a value defining processing to be effected on the corresponding memory cell. A write driver applies a write pulse when the bit in the mask buffer corresponding to the selected memory cell is “0”. A verify circuit compares the two bits provided from the memory array sense amplifier with the corresponding two bits in the page buffer, and changes the corresponding bit in the mask buffer from “0” to “1” when the result of the comparison represents matching.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tomoyuki Fujisawa, Hikaru Shibahara, Hidenori Mitani, Akihiko Kanda
  • Publication number: 20080225602
    Abstract: Erasing is performed with respect to a nonvolatile memory cell without causing depletion halfway therethrough. A control circuit for reversibly and variably controlling the threshold voltage of the nonvolatile memory cell by electrical erasing and writing controls an erase process of performing erasing to the plurality of nonvolatile memory cells assigned to one unit in an erase operation, a first write process of performing writing to the nonvolatile memory cell exceeding a pre-write-back level before a depletion level, and a second write process of performing writing to the nonvolatile memory cell exceeding a write-back level after the first write process. Since the occurrence of depletion is suppressed by successively performing the first write process with respect to the nonvolatile memory cells which may exceed the depletion level in the erase process, erasing can be performed to the nonvolatile memory cell without causing depletion halfway therethrough.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 18, 2008
    Inventors: Ken MATSUBARA, Yoshinori TAKASE, Tomoyuki FUJISAWA
  • Patent number: 7391655
    Abstract: Erasing is performed with respect to a nonvolatile memory cell without causing depletion halfway therethrough. A control circuit for reversibly and variably controlling the threshold voltage of the nonvolatile memory cell by electrical erasing and writing controls an erase process of performing erasing to the plurality of nonvolatile memory cells assigned to one unit in an erase operation, a first write process of performing writing to the nonvolatile memory cell exceeding a pre-write-back level before a depletion level, and a second write process of performing writing to the nonvolatile memory cell exceeding a write-back level after the first write process. Since the occurrence of depletion is suppressed by successively performing the first write process with respect to the nonvolatile memory cells which may exceed the depletion level in the erase process, erasing can be performed to the nonvolatile memory cell without causing depletion halfway therethrough.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: June 24, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Ken Matsubara, Yoshinori Takase, Tomoyuki Fujisawa
  • Publication number: 20080098190
    Abstract: A non-volatile storage device (1) has non-volatile memory units (FARY0 to FARY3), buffer units (BMRY0 to BMRY3) and a control unit (CNT), and the control unit can control a first access processing between an outside and the buffer unit and a second access processing between the non-volatile memory unit and the buffer unit upon receipt of directives from the outside separately from each other. The control unit can independently carry out an access control over the non-volatile memory unit and the buffer unit in accordance with the directives sent from the outside, respectively. Therefore, it is possible to set up next write data to the buffer unit simultaneously with the erase operation of the non-volatile memory unit or to output once read storage information to the buffer unit at a high speed as in a cache memory operation in accordance with the directive sent from the outside.
    Type: Application
    Filed: December 24, 2007
    Publication date: April 24, 2008
    Inventors: Yoshinori Takase, Keiichi Yoshida, Takashi Horii, Atsushi Nozoe, Takayuki Tamura, Tomoyuki Fujisawa, Ken Matsubara