Patents by Inventor Ryuji Takahashi

Ryuji Takahashi 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: 11247192
    Abstract: Provided is a packing material for HILIC columns for more accurately and more easily performing oligosaccharide analysis by liquid chromatography; an HILIC column which is filled with the packing material for HILIC columns; and a method for analyzing an oligosaccharide with use of this packing material for HILIC columns A packing material for HILIC columns according to the present invention is composed of particles, each of which is obtained by reacting glycidol to a hydroxyl group of a porous cross-linked polymer base material having the hydroxyl group, and which have a hydrophilicity index of 2.30 or more and a surface-pH index of from 0.95 to 1.05.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: February 15, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Junya Kato, Hideyuki Kondo, Ryuji Takahashi
  • Publication number: 20220025171
    Abstract: A resin composition contains an epoxy compound, a maleimide compound, a phenolic compound, core-shell rubber, and an inorganic filler. The maleimide compound has an N-phenyl maleimide structure. The content of the maleimide compound falls within a range from 10 parts by mass to less than 40 parts by mass with respect to 100 parts by mass in total of the epoxy compound, the maleimide compound, and the phenolic compound.
    Type: Application
    Filed: November 15, 2019
    Publication date: January 27, 2022
    Inventors: Tomo MUGURUMA, Ryuji TAKAHASHI, Shimpei OBATA, Yasunori AMBE
  • Publication number: 20200395236
    Abstract: A substrate fixing apparatus includes: a base plate; an electrostatic adsorption member that adsorbs and retains a substrate; a support member that is disposed on the base plate to support the electrostatic adsorption member; and an adhesive layer that adhesively bonds the electrostatic adsorption member to the base plate. The support member directly contacts the base plate and the electrostatic adsorption member. An elastic modulus of the support member is higher than an elastic modulus of the adhesive layer.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 17, 2020
    Inventors: Nobuyuki Iijima, Hiroharu Yanagisawa, Yuichi Nakamura, Ryuji Takahashi
  • Publication number: 20200332078
    Abstract: A thermosetting resin composition contains a thermosetting resin and an inorganic filler. The thermosetting resin includes a curing agent. A 3 mass % methyl ethyl ketone solution of the curing agent has a Gardner color scale of 15 or more. The content of the curing agent accounts for 10 mass % or more of a total solid content of the thermosetting resin composition.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 22, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryuji TAKAHASHI, Shimpei OBATA, Yasunori AMBE, Tomo MUGURUMA
  • Patent number: 10472478
    Abstract: A prepreg includes: a woven fabric base; and a semi-cured product of a resin composition, which fills an inside of the woven fabric base and coats a surface of the woven fabric base. The resin composition includes a thermosetting resin, an inorganic filler, a first thermoplastic resin soluble in an organic solvent, and a second thermoplastic resin insoluble in an organic solvent. With respect to 100 parts by mass of the thermosetting resin, a content ratio of the inorganic filler ranges from 50 parts by mass to 150 parts by mass, inclusive, and a total content ratio of the first thermoplastic resin and the second thermoplastic resin ranges from 20 parts by mass to 50 parts by mass, inclusive.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 12, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Hoshino, Shimpei Obata, Shigetoshi Fujita, Ryuji Takahashi
  • Publication number: 20190184372
    Abstract: Provided is a packing material for HILIC columns for more accurately and more easily performing oligosaccharide analysis by liquid chromatography; an HILIC column which is filled with the packing material for HILIC columns; and a method for analyzing an oligosaccharide with use of this packing material for HILIC columns A packing material for HILIC columns according to the present invention is composed of particles, each of which is obtained by reacting glycidol to a hydroxyl group of a porous cross-linked polymer base material having the hydroxyl group, and which have a hydrophilicity index of 2.30 or more and a surface-pH index of from 0.95 to 1.05.
    Type: Application
    Filed: August 10, 2017
    Publication date: June 20, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Junya KATO, Hideyuki KONDO, Ryuji TAKAHASHI
  • Publication number: 20190181081
    Abstract: A thermosetting resin composition according to the invention contains: a thermosetting resin component; and silica having an average particle diameter equal to or greater than 0.2 ?m and treated with isocyanate. It is preferable that the content of the silica is in a range of 50% by mass to 300% by mass with respect to the thermosetting resin component. It is also preferable that the thermosetting resin composition contains core shell rubber having content in a range of 20% by mass to 80% by mass with respect to the thermosetting resin component.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Inventors: Hiroki TAMIYA, Koji KISHINO, Ryuji TAKAHASHI, Yasunori HOSHINO, Takahiro YAMADA, Shimpei OBATA, Hiroyuki SHIRAKI, Shinya ARAKAWA, Shigetoshi FUJITA
  • Publication number: 20180327559
    Abstract: A prepreg includes: a woven fabric base; and a semi-cured product of a resin composition, which fills an inside of the woven fabric base and coats a surface of the woven fabric base. The resin composition includes a thermosetting resin, an inorganic filler, a first thermoplastic resin soluble in an organic solvent, and a second thermoplastic resin insoluble in an organic solvent. With respect to 100 parts by mass of the thermosetting resin, a content ratio of the inorganic filler ranges from 50 parts by mass to 150 parts by mass, inclusive, and a total content ratio of the first thermoplastic resin and the second thermoplastic resin ranges from 20 parts by mass to 50 parts by mass, inclusive.
    Type: Application
    Filed: September 5, 2016
    Publication date: November 15, 2018
    Inventors: YASUNORI HOSHINO, SHIMPEI OBATA, SHIGETOSHI FUJITA, RYUJI TAKAHASHI
  • Publication number: 20160293538
    Abstract: A thermosetting resin composition according to the invention contains: a thermosetting resin component; and silica having an average particle diameter equal to or greater than 0.2 ?m and treated with isocyanate. It is preferable that the content of the silica is in a range of 50% by mass to 300% by mass with respect to the thermosetting resin component. It is also preferable that the thermosetting resin composition contains core shell rubber having content in a range of 20% by mass to 80% by mass with respect to the thermosetting resin component.
    Type: Application
    Filed: March 15, 2016
    Publication date: October 6, 2016
    Inventors: HIROKI TAMIYA, KOJI KISHINO, RYUJI TAKAHASHI, YASUNORI HOSHINO, TAKAHIRO YAMADA, SHIMPEI OBATA, HIROYUKI SHIRAKI, SHINYA ARAKAWA, SHIGETOSHI FUJITA
  • Patent number: 8062750
    Abstract: An epoxy resin composition for a prepreg used in manufacturing a printed wiring board, particularly a multilayered printed wiring board, is provided. The composition features: (A) a multifunctional epoxy resin having on average 2.8 or more epoxy groups per molecule; (B) a reaction product of a phosphorous compound, a bifunctional epoxy resin, and an optional multifunctional epoxy resin, provided in an amount of 20% to 55% by mass, based on the total amount of epoxy resin, including (A) and (B); (C) a curing agent of dicyandiamide and/or a multifunctional phenolic compound; and (D) an inorganic filler blend containing an inorganic filler with a thermal decomposition temperature of 400° C. or above. The composition does not generate toxic substances when combusted and has excellent ignition resistance, solder heat resistance after moisture absorption, and high temperature rigidity.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: November 22, 2011
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hidetsugu Motobe, Yoshihiko Nakamura, Takeshi Koizumi, Ryuji Takahashi
  • Patent number: 7755705
    Abstract: A television receiver comprising: an internal speaker to output voice; a digital terminal to perform digital voice output, to which an external device is connected; a connection detection unit to detect whether an external device is connected to the digital terminal, or not; and a voice mute circuit to mute a voice output from the internal speaker when the connection detection unit detects that the external device is connected to the digital terminal.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: July 13, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventor: Ryuji Takahashi
  • Patent number: 7564743
    Abstract: An optical disc apparatus is adapted to load an optical disc inserted in a slot into a main body and to read and reproduce data stored on the optical disc. The optical disc apparatus temporarily prevents a loading means from loading an optical disc into the main body if a guide flag stored in a storage means is off when the optical disc is inserted in the slot. At the same time, the apparatus instructs a guide image outputting means to output a guide image that indicates a proper orientation in which the optical disc is to be inserted into the slot.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: July 21, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Ryuji Takahashi
  • Patent number: 7550436
    Abstract: A composition containing a peptide and an electrolyte excretion promoter, which comprises a peptide or a peptide mixture which is obtained by lysing a food-origin protein with a protease and has an activity of inhibiting angiotensin converting enzyme, and one or more electrolyte excretion promoters selected from chitosan, alginic acid or a salt thereof, and further relates to a food containing the same. Said composition has excellent inhibitory activity to rise of blood pressure by synergistic effects of both components.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: June 23, 2009
    Assignee: Kracie Pharma, Ltd.
    Inventors: Ryuji Takahashi, Satoshi Yomoda
  • Publication number: 20090008127
    Abstract: Problems: To provide an epoxy resin composition for prepreg used in manufacturing a printed wiring board, particularly a multilayered printed wiring board, which does not generate toxic substance on combustion and excellent in ignition resistance, solder heat resistance after moisture absorption and high temperature rigidity, prepregs and multilayered printed wiring boards. Means for solving problems: A phosphorous compound comprising 1.8 or more but less than 3 phenolic hydroxyl groups on an average and 0.8 or more phosphorous atom on an average within a molecule is reacted in advance with a particular bifunctional epoxy resin (selected from biphenyl, naphthalene, dicylcopentadiene or other types) in a ratio of epoxy equivalent to phenolic hydroxyl equivalent to be 1.2 or more but less than 3 to 1 to yield a preliminarily reacted epoxy resin, of which 20% by mass to 55% by mass against the whole epoxy resin composition is formulated together with a multifunctional epoxy resin having 2.
    Type: Application
    Filed: November 30, 2004
    Publication date: January 8, 2009
    Inventors: Hidetsugu Motobe, Yoshihiko Nakamura, Takeshi Koizumi, Ryuji Takahashi
  • Publication number: 20060291341
    Abstract: An optical disc apparatus is adapted to load an optical disc inserted in a slot into a main body and to read and reproduce data stored on the optical disc. The optical disc apparatus temporarily prevents a loading means from loading an optical disc into the main body if a guide flag stored in a storage means is off when the optical disc is inserted in the slot. At the same time, the apparatus instructs a guide image outputting means to output a guide image that indicates a proper orientation in which the optical disc is to be inserted into the slot.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 28, 2006
    Applicant: Funai Electric Co., Ltd.
    Inventor: Ryuji Takahashi
  • Publication number: 20060171565
    Abstract: A television receiver comprising: an internal speaker to output voice; a digital terminal to perform digital voice output, to which an external device is connected; a connection detection unit to detect whether an external device is connected to the digital terminal, or not; and a voice mute circuit to mute a voice output from the internal speaker when the connection detection unit detects that the external device is connected to the digital terminal.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 3, 2006
    Applicant: FUNAI ELECTRIC CO., LTD.
    Inventor: Ryuji Takahashi
  • Publication number: 20050162554
    Abstract: In a disk device integral type television receiver set, when the transmission of data of a still image from a disk device side to a television receiver side is started, a timer is started. As a result that the display of the still image has been continued, when the time set in the timer has elapsed (times up), the CPU of the disk device side informs the CPU of the television receiver of this fact. The CPU of the television receiver side having been informed sends, to a signal selecting unit, a signal of selecting a broadcasting signal from a tuner. Thus, a broadcasting image which is a moving image is displayed on a CRT.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 28, 2005
    Applicant: Funai Electric Co., Ltd.
    Inventor: Ryuji Takahashi
  • Patent number: 6917392
    Abstract: The present invention provides a liquid crystal display apparatus of a lateral direction electric field drive type comprising an array substrate including a plurality of TFTs each having a gate electrode, a gate insulation film, a semiconductor layer, and a source electrode/drain electrode formed on a transparent substrate and an opposing substrate arrange so as to oppose to the array substrate, wherein the semiconductor layer has a width in the gate length direction identical to the gate length.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 12, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Takahisa Hannuki, Shinichi Nishida, Satoshi Ihida, Shouichi Kuroha, Ryuji Takahashi, Satoshi Miura
  • Patent number: 6759442
    Abstract: An object of the present invention is to provide a packing material for solid phase extraction, ensuring excellent recovery of not only a hydrophobic substance but also an ionic substance by having hydrophobicity and an ion exchange group at the same time, and a solid phase extraction method, a packing apparatus, and a method for treating a sample, using the packing apparatus. A packing material for solid phase extraction of the present invention is a particle obtained by copolymerizing a hydrophobic monomer (A) and a hydrophilic monomer (B) and introducing thereinto an ion exchange group, in which the ion exchange group is introduced without impairing the hydrophobic site. The present invention also provides a solid phase extraction method, a packing apparatus for solid phase extraction and a method for treating a sample, using the packing material.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: July 6, 2004
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Ryuji Takahashi, Hiroshi Suzuki
  • Patent number: 6650497
    Abstract: A recording and/or reproducing apparatus and method for loading a head on a disc-shaped recording medium including a head to write data on and/or read data from the disc-shaped recording medium, a head supporting member for moving the head, and a moving member for moving the head supporting member to move the head in the radial direction of the disc-shaped recording medium. In addition, a head landing member is provided for landing the head onto the disc-shaped recording medium via the head supporting member. Further, a controlling member controls the head landing member and the moving member so that the head landing member lands the head onto the disc-shaped recording medium while the head is moved by the head moving member in the radial direction of the disc-shaped recording medium.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: November 18, 2003
    Assignee: Sony Corporation
    Inventors: Kiyoshi Tada, Ryuji Takahashi