Patents by Inventor Hiroyoshi Maruyama

Hiroyoshi Maruyama 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: 11498310
    Abstract: A sheet formed from a carbon fiber reinforced thermoplastic resin with a simplified production process and excellent mechanical characteristics, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 15, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki Sugiyama, Kohei Yoshiya, Hidetaka Shimizu, Hiroyoshi Maruyama
  • Patent number: 11466132
    Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high heat resistance, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a constituent unit derived from a dihydric phenol represented by formula (1), and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1-R4 independently represent a hydrogen, a halogen, a nitro, or a methyl group; X represents a divalent group represented by any of formulas (2) to (4).
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki Sugiyama, Kohei Yoshiya, Hidetaka Shimizu, Shun Ishikawa, Hiroyoshi Maruyama
  • Patent number: 11370883
    Abstract: A polycarbonate resin composition, a molded article, a polycarbonate resin, and an end-capping agent for polycarbonate resins are provided. The polycarbonate resin composition contains: a polycarbonate resin having a terminal structure represented by Formula (A) and having a viscosity average molecular weight from 1×104 to 5×104, and a stabilizer. In Formula (A), R1 is selected from the group consisting of a hydrogen atom, halogen atoms, linear alkyl groups having from 1 to 9 carbons, branched alkyl groups having from 3 to 9 carbons, linear alkenyl groups having from 2 to 9 carbons, branched alkenyl groups having from 3 to 9 carbons, and aryl groups having from 6 to 12 carbons; and R2 to R7 are each independently selected from the group consisting of a hydrogen atom, alkyl groups having from 1 to 9 carbons, and alkoxy groups having from 1 to 9 carbons.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: June 28, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuji Shibasaki, Hiroyoshi Maruyama, Kimitaka Nakao, Yuusuke Nii
  • Patent number: 11365298
    Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high moldability, and a production method of said resin is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a terminal structure derived from a monohydric phenol represented by formula (1) and a constituent unit derived from a dihydric phenol, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1 represents an alkyl group with 8-36 carbons, or an alkenyl group with 8-36 carbons, and R2-R5 independently represent a hydrogen, a halogen, an alkyl group with 1-20 carbons optionally having a substituent, or an aryl group with 6-12 carbons optionally having a substituent.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 21, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki Sugiyama, Kohei Yoshiya, Hidetaka Shimizu, Hiroyoshi Maruyama
  • Publication number: 20200277453
    Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high heat resistance, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a constituent unit derived from a dihydric phenol represented by formula (1), and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1-R4 independently represent a hydrogen, a halogen, a nitro, or a methyl group; X represents a divalent group represented by any of formulas (2) to (4).
    Type: Application
    Filed: May 14, 2018
    Publication date: September 3, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki SUGIYAMA, Kohei YOSHIYA, Hidetaka SHIMIZU, Shun ISHIKAWA, Hiroyoshi MARUYAMA
  • Publication number: 20200277462
    Abstract: A sheet formed from a carbon fiber reinforced thermoplastic resin with a simplified production process and excellent mechanical characteristics, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 3, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki SUGIYAMA, Kohei YOSHIYA, Hidetaka SHIMIZU, Hiroyoshi MARUYAMA
  • Publication number: 20200140635
    Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high moldability, and a production method of said resin is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a terminal structure derived from a monohydric phenol represented by formula (1) and a constituent unit derived from a dihydric phenol, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1 represents an alkyl group with 8-36 carbons, or an alkenyl group with 8-36 carbons, and R2-R5 independently represent a hydrogen, a halogen, an alkyl group with 1-20 carbons optionally having a substituent, or an aryl group with 6-12 carbons optionally having a substituent.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 7, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki SUGIYAMA, Kohei YOSHIYA, Hidetaka SHIMIZU, Hiroyoshi MARUYAMA
  • Publication number: 20200115496
    Abstract: A polycarbonate resin composition, a molded article, a polycarbonate resin, and an end-capping agent for polycarbonate resins are provided. The polycarbonate resin composition contains: a polycarbonate resin having a terminal structure represented by Formula (A) and having a viscosity average molecular weight from 1×104 to 5×104, and a stabilizer. In Formula (A), R1 is selected from the group consisting of a hydrogen atom, halogen atoms, linear alkyl groups having from 1 to 9 carbons, branched alkyl groups having from 3 to 9 carbons, linear alkenyl groups having from 2 to 9 carbons, branched alkenyl groups having from 3 to 9 carbons, and aryl groups having from 6 to 12 carbons; and R2 to R7 are each independently selected from the group consisting of a hydrogen atom, alkyl groups having from 1 to 9 carbons, and alkoxy groups having from 1 to 9 carbons.
    Type: Application
    Filed: April 16, 2018
    Publication date: April 16, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuji SHIBASAKI, Hiroyoshi MARUYAMA, Kimitaka NAKAO, Yuusuke NII
  • Publication number: 20180291198
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass fiber coated with a sizing agent and 2 to 20 parts by weight of a laser direct structuring additive, wherein the sizing agent comprises at least one selected from a polyolefin resin and a silicone resin.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 11, 2018
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi MOTEGI, Hiroyoshi MARUYAMA
  • Publication number: 20180134894
    Abstract: A resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass fiber having an average fiber length of 200 ?m or less and 2 to 20 parts by weight of a laser direct structuring additive.
    Type: Application
    Filed: January 9, 2018
    Publication date: May 17, 2018
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi MOTEGI, Hiroyoshi MARUYAMA
  • Patent number: 9745465
    Abstract: Provided is a resin composition excellent in mechanical strength while maintaining LDS activity. The resin composition for laser direct structuring comprises, relative to 100 parts by weight of a polycarbonate resin component, 10 to 100 parts by weight of a glass filler and 1 to 30 parts by weight of a laser direct structuring additive, wherein the polycarbonate resin component consists of 80 to 30% by weight of a polycarbonate resin and 20 to 70% by weight of a styrene-based resin, or consists of a polycarbonate; and the laser direct structuring additive comprises antimony and tin.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: August 29, 2017
    Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Patent number: 9663653
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass filler and 2 to 20 parts by weight of a laser direct structuring additive, wherein the laser direct structuring additive comprises a metal oxide particle comprising titanium oxide coated with a composition comprising tin as a main component and antimony.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: May 30, 2017
    Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20150210849
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass fiber coated with a sizing agent and 2 to 20 parts by weight of a laser direct structuring additive, wherein the sizing agent comprises at least one selected from a polyolefin resin and a silicone resin.
    Type: Application
    Filed: September 12, 2013
    Publication date: July 30, 2015
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20150203680
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass fiber having an average fiber length of 200 ?m or less and 2 to 20 parts by weight of a laser direct structuring additive.
    Type: Application
    Filed: September 12, 2013
    Publication date: July 23, 2015
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20150111041
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises, relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass filler and 2 to 20 parts by weight of a laser direct structuring additive, wherein the laser direct structuring additive comprises a metal oxide particle comprising titanium oxide coated with a composition comprising tin as a main component and antimony.
    Type: Application
    Filed: September 12, 2013
    Publication date: April 23, 2015
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20150072149
    Abstract: Provided is a resin composition capable of achieving a higher plating property. The resin composition comprises relative to 100 parts by weight of a resin component comprising 30 to 100% by weight of a polycarbonate resin and 70% by weight or less of a styrene-based resin, 10 to 100 parts by weight of a glass filler and 2 to 20 parts by weight of a laser direct structuring additive, wherein the laser direct structuring additive comprises a metal oxide, a component of the largest blending amount among the metal components is tin, a component of the second largest blending amount is antimony, and in addition lead and/or copper are contained.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20140162070
    Abstract: Provided is a resin composition excellent in mechanical strength while maintaining LDS activity. The resin composition for laser direct structuring comprises, relative to 100 parts by weight of a polycarbonate resin component, 10 to 100 parts by weight of a glass filler and 1 to 30 parts by weight of a laser direct structuring additive, wherein the polycarbonate resin component consists of 80 to 30% by weight of a polycarbonate resin and 20 to 70% by weight of a styrene-based resin, or consists of a polycarbonate; and the laser direct structuring additive comprises antimony and tin.
    Type: Application
    Filed: June 5, 2013
    Publication date: June 12, 2014
    Inventors: Atsushi Motegi, Hiroyoshi Maruyama
  • Publication number: 20090207496
    Abstract: There is provided a light diffusion plate for liquid crystal display devices which can be produced with an excellent productivity by an injection molding method, and have a thin thickness and a large size (wide area) and are excellent in dimensional stability, optical properties and mechanical strength. The present invention relates to a polycarbonate resin composition for light diffusion plates, comprising (A) 100 parts by weight of an aromatic polycarbonate resin having a viscosity-average molecular weight of not less than 12,000 and less than 15,000 and containing a low-molecular weight component having a molecular weight of less than 1,000 in an amount of not more than 2.5% by weight, and (B) 0.2 to 20 parts by weight of fine particles having a weight-average particle diameter of 0.7 to 30 ?m.
    Type: Application
    Filed: November 17, 2006
    Publication date: August 20, 2009
    Inventors: Haruo Sasaki, Hiroyoshi Maruyama, Kazuhiro Andou, Hisato Abe
  • Patent number: 7072083
    Abstract: In an image reading apparatus for reading an original image using a light source containing a plurality of color components, a control pulse for dimming the light source is generated by pulse-width modulation symmetrically with respect to a reference timing (for example, the central position in one storage time or the storage start timing) in one predetermined storage time of a line sensor.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: July 4, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Sato, Hiroyoshi Maruyama, Ken Tanabe, Masashi Minami, Shigeo Yamagata, Mitsuru Kurita, Koji Arai, Tsutomu Utagawa, Koichi Ishimoto
  • Publication number: 20050049368
    Abstract: The present invention relates to aromatic polycarbonate resin pellets for light guide plate, which pellets contain dusts having a particle size of 0.5 to 1.0 ?m in an amount of not more than 50,000 particles/g, and dusts having a particle size of more than 1.0 ?m in an amount of not more than 3,000 particles/g, and a light guide plate comprising the aromatic polycarbonate resin pellets which contains dusts having a particle size of 0.5 to 1.0 ?m in an amount of not more than 50,000 particles/g, and dusts having a particle size of more than 1.0 ?m in an amount of not more than 3,000 particles/g.
    Type: Application
    Filed: August 17, 2004
    Publication date: March 3, 2005
    Inventors: Hiroyoshi Maruyama, Haruhiko Kurokawa