Patents by Inventor Takahiro Niwa

Takahiro Niwa 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: 20230283926
    Abstract: There is provided an imaging device including a pixel array section including pixel units two-dimensionally arranged in a matrix pattern, each pixel unit including a photoelectric converter, and a plurality of column signal lines disposed according to a first column of the pixel units. The imaging device further includes an analog to digital converter that is shared by the plurality of column signal lines.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 7, 2023
    Applicant: SONY GROUP CORPORATION
    Inventors: Atsumi NIWA, Yosuke UENO, Shimon TESHIMA, Daijiro ANAI, Yoshinobu FURUSAWA, Taishin YOSHIDA, Takahiro UCHIMURA, Eiji HIRATA
  • Publication number: 20230052915
    Abstract: A method that enables fabrication of a machinable zirconia composite sintered body that is machinable in a sintered state while maintaining properties suited for dental use, in a shorter time than it is possible with conventional methods. A method for producing a machinable zirconia composite sintered body by fabricating a molded body with a raw material composition that includes 78 to 95 mol % of ZrO2 and 2.5 to 10 mol % of Y2O3, and also includes 2 to 8 mol % of Nb2O5 and/or 3 to 10 mol % of Ta2O5, and in which ZrO2 predominantly includes a monoclinic crystal system and sintering the molded body.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 16, 2023
    Applicant: KURARAY NORITAKE DENTAL INC.
    Inventors: Shinichiro KATO, Yoshihisa ITO, Takahiro NIWA
  • Patent number: 9593798
    Abstract: A novel pipe cover is disclosed that can suppress thermal deterioration in a member that is positioned opposite to the pipe, and can control the temperature inside the pipe within a given range, even when a high-temperature fluid circulates through the pipe. The pipe cover is used to cover the outer periphery of a pipe, and includes a base that is formed of a tubular heat insulator, and a surface member that covers the outer surface of the base, a heat radiation section and a heat radiation-suppressing section being provided on the outer surface of the surface member, and the emissivity of the heat radiation section at a wavelength of 2 to 15 ?m being higher than the emissivity of the heat radiation-suppressing section at a wavelength of 2 to 15 ?m.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 14, 2017
    Assignee: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Ando, Isami Abe
  • Patent number: 9579813
    Abstract: Provided is a cutting apparatus 10 including a workpiece fixing jig 2 that supports a workpiece 1, rotates by operation of rotary drive means 3, and rotates the workpiece 1 while fixing the workpiece 1; rotary drive means 3 for driving and rotating the workpiece fixing jig 2; support means 4a to 4c for supporting the workpiece 1 while rotating along with rotation of the workpiece fixing jig 2; cutter knives 5a and 5b that cut the rotating workpiece 1 at least at axially opposite ends of the workpiece 1; and slide moving means 6 for slidably moving the cutter knives. The cutting apparatus 10 having a simple apparatus configuration does not produce chips as a result of cutting with small variations in size and with high planarity of cut surfaces.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: February 28, 2017
    Assignee: NICHIAS CORPORATION
    Inventors: Hidenobu Yamagishi, Takahiro Niwa, Masaki Yoshihara
  • Patent number: 9261192
    Abstract: A cylinder head gasket includes two main members on two sides, and middle members sandwiched therebetween. The middle members are composed of a first middle member and a second middle member that is separated and distinct therefrom. The first middle member is a metal plate that has cylinder hole rim portions encircling cylinder holes to a particular width, with beads surrounding the cylinder holes being formed in the cylinder hole rim portions. The metal plate either forms separated items, one at each cylinder hole, or else forms an integrated item connected between the cylinder holes. The second middle member is a metal plate that is disposed on the outside of the first middle member and has oil holes and bolt holes. The thickness of the first middle member is greater than that of the second middle member.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 16, 2016
    Assignee: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Hironobu Imanaka, Takeshi Murata, Shinya Wasada
  • Patent number: 9149851
    Abstract: The present invention relates to a metallic molded sheet including a metallic sheet having first ridges continuously formed along a first direction and second ridges continuously formed along a second direction which is perpendicular to the first direction, in which the metallic molded sheet has cross-sectional shapes along the first direction and the second direction, each having an identical thickness and continuing sinusoidally, and the metallic molded sheet has a planar shape being a corrugated surface in which ridge lines of first waveforms along the first direction and ridge lines of second waveforms along the second direction perpendicularly intersect each other.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 6, 2015
    Assignee: NICHIAS CORPORATION
    Inventors: Akinao Hiraoka, Motonori Kondoh, Tadakatsu Kato, Takahiro Niwa
  • Patent number: 9093060
    Abstract: The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material laminated on the first soft sound-insulating layer, and a second soft sound-insulating layer laminated on the second sound-absorbing material and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer, in which at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: July 28, 2015
    Assignee: NICHIAS CORPORATION
    Inventors: Tadashi Mori, Takahiro Niwa, Masaki Yoshihara, Motonori Kondoh, Kaname Arimizu
  • Patent number: 9068654
    Abstract: A gasket held between opposite flange joint surfaces with a bolt includes a combination of a complex material with a rubber material formed on one or both sides of a steel plate, the complex material having a convex or waveform bead, and a circular metal plate arranged at a bolt portion with a through-hole where a shank of the bolt penetrates and a bearing corresponding portion that corresponds to a bearing of the bolt around the through-hole. The gasket is configured to have the thickness (H3) of the bead provided to the complex material greater than the thickness (H2) of the circular metal plate that is equal to or greater than the thickness (H1) of the complex material. This structure provides a gasket indicating good sealing properties under such circumstances that a flange has low stiffness, a tightening load is reduced, and the distance between bolts is expanded.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 30, 2015
    Assignee: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Hironobu Imanaka, Takeshi Murata, Manabu Yasuda
  • Publication number: 20140217682
    Abstract: A gasket held between opposite flange joint surfaces with a bolt includes a combination of a complex material with a rubber material formed on one or both sides of a steel plate, the complex material having a convex or waveform bead, and a circular metal plate arranged at a bolt portion with a through-hole where a shank of the bolt penetrates and a bearing corresponding portion that corresponds to a bearing of the bolt around the through-hole. The gasket is configured to have the thickness (H3) of the bead provided to the complex material greater than the thickness (H2) of the circular metal plate that is equal to or greater than the thickness (H1) of the complex material. This structure provides a gasket indicating good sealing properties under such circumstances that a flange has low stiffness, a tightening load is reduced, and the distance between bolts is expanded.
    Type: Application
    Filed: April 2, 2012
    Publication date: August 7, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Hironobu Imanaka, Takeshi Murata, Manabu Yasuda
  • Publication number: 20140144539
    Abstract: A novel pipe cover is disclosed that can suppress thermal deterioration in a member that is positioned opposite to the pipe, and can control the temperature inside the pipe within a given range, even when a high-temperature fluid circulates through the pipe. The pipe cover is used to cover the outer periphery of a pipe, and includes a base that is formed of a tubular heat insulator, and a surface member that covers the outer surface of the base, a heat radiation section and a heat radiation-suppressing section being provided on the outer surface of the surface member, and the emissivity of the heat radiation section at a wavelength of 2 to 15 ?m being higher than the emissivity of the heat radiation-suppressing section at a wavelength of 2 to 15 ?m.
    Type: Application
    Filed: July 10, 2012
    Publication date: May 29, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Andoo, Isami Abe
  • Publication number: 20140123849
    Abstract: A cylinder head gasket includes two main members on two sides, and middle members sandwiched therebetween. The middle members are composed of a first middle member and a second middle member that is separated and distinct therefrom. The first middle member is a metal plate that has cylinder hole rim portions encircling cylinder holes to a particular width, with beads surrounding the cylinder holes being formed in the cylinder hole rim portions. The metal plate either forms separated items, one at each cylinder hole, or else forms an integrated item connected between the cylinder holes. The second middle member is a metal plate that is disposed on the outside of the first middle member and has oil holes and bolt holes. The thickness of the first middle member is greater than that of the second middle member.
    Type: Application
    Filed: March 21, 2012
    Publication date: May 8, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Hironobu Imanaka, Takeshi Murata, Shinya Wasada
  • Publication number: 20140076116
    Abstract: Provided is a cutting apparatus 10 including a workpiece fixing jig 2 that supports a workpiece 1, rotates by operation of rotary drive means 3, and rotates the workpiece 1 while fixing the workpiece 1; rotary drive means 3 for driving and rotating the workpiece fixing jig 2; support means 4a to 4c for supporting the workpiece 1 while rotating along with rotation of the workpiece fixing jig 2; cutter knives 5a and 5b that cut the rotating workpiece 1 at least at axially opposite ends of the workpiece 1; and slide moving means 6 for slidably moving the cutter knives. The cutting apparatus 10 having a simple apparatus configuration does not produce chips as a result of cutting with small variations in size and with high planarity of cut surfaces.
    Type: Application
    Filed: April 9, 2012
    Publication date: March 20, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Hidenobu Yamagishi, Takahiro Niwa, Masaki Yoshihara
  • Publication number: 20140027200
    Abstract: The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material laminated on the first soft sound-insulating layer, and a second soft sound-insulating layer laminated on the second sound-absorbing material and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer, in which at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material.
    Type: Application
    Filed: January 26, 2012
    Publication date: January 30, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Tadashi Mori, Takahiro Niwa, Masaki Yoshihara, Motonori Kondoh, Kaname Arimizu
  • Publication number: 20120192610
    Abstract: The present invention relates to a metallic molded sheet including a metallic sheet having first ridges continuously formed along a first direction and second ridges continuously formed along a second direction which is perpendicular to the first direction, in which the metallic molded sheet has cross-sectional shapes along the first direction and the second direction, each having an identical thickness and continuing sinusoidally, and the metallic molded sheet has a planar shape being a corrugated surface in which ridge lines of first waveforms along the first direction and ridge lines of second waveforms along the second direction perpendicularly intersect each other.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 2, 2012
    Applicant: Nichias Corporation
    Inventors: Akinao Hiraoka, Motonori Kondoh, Tadakatsu Kato, Takahiro Niwa
  • Patent number: 8061475
    Abstract: The present invention relates to a soundproof cover containing: a sound-absorbing material disposed facing to a sound source; a soft sound-insulating layer laminated on the sound-absorbing material and having an air permeability measured according to JIS L 1018 (1999) of 10 cc/cm2·sec or less; and a soft cover forming an air layer with the soft sound-insulating layer and having a Young's modulus measured according to JIS K 7127 (1999) of 0.2 to 1.5 GPa, in which the air layer is hermetically sealed.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 22, 2011
    Assignee: Nichias Corporation
    Inventors: Tadashi Mori, Motonori Kondoh, Kaname Arimizu, Takahiro Niwa, Masaki Yoshihara
  • Patent number: 8028801
    Abstract: The present invention provides a soundproof cover comprising: a sound-absorbing material having air permeability; and a skin material impregnated with a viscoelastic material and having air permeability, wherein the skin material is provided on a surface of the sound-absorbing material opposite to a sound source, and wherein the soundproof cover has a three-dimensional shape corresponding to an outer shape of the sound source.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: October 4, 2011
    Assignee: Nichias Corporation
    Inventors: Takahiro Niwa, Michihiro Inagaki, Akinao Hiraoka, Motonori Kondoh, Tadashi Mori
  • Patent number: 7963363
    Abstract: The present invention relates to a soundproof cover for automobiles, the soundproof cover including: a cover body formed of a metal or a resin; and a sound-absorbing material disposed opposite to a sound source, in which the sound-absorbing material has a soft sound-insulating layer on a surface side thereof facing the cover body, the sound-absorbing material is disposed apart from the cover body, and the sound-absorbing material has a peripheral edge that contacts with an inner wall of an edge of the cover body.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: June 21, 2011
    Assignee: Nichias Corporation
    Inventors: Takahiro Niwa, Motonori Kondoh, Tadashi Mori
  • Publication number: 20110067949
    Abstract: The present invention relates to a soundproof cover containing: a sound-absorbing material disposed facing to a sound source; a soft sound-insulating layer laminated on the sound-absorbing material and having an air permeability measured according to JIS L 1018 (1999) of 10 cc/cm2·sec or less; and a soft cover forming an air layer with the soft sound-insulating layer and having a Young's modulus measured according to JIS K 7127 (1999) of 0.2 to 1.5 GPa, in which the air layer is hermetically sealed.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Inventors: Tadashi Mori, Motonori Kondoh, Kaname Arimizu, Takahiro Niwa, Masaki Yoshihara
  • Publication number: 20110041945
    Abstract: The present invention relates to an automotive exhaust pipe including: an exhaust pipe main body; and a metallic cylindrical body being inserted inside the exhaust pipe main body, having openings at an open area ratio of 95% or smaller, and having a thickness of 3 mm or smaller.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Takahiro Ohmura, Masatake Onodera, Takahiro Niwa, Toshihiko Kumasaka, Akinao Hiraoka
  • Publication number: 20100032234
    Abstract: The present invention relates to a soundproof cover for automobiles, the soundproof cover including: a cover body formed of a metal or a resin; and a sound-absorbing material disposed opposite to a sound source, in which the sound-absorbing material has a soft sound-insulating layer on a surface side thereof facing the cover body, the sound-absorbing material is disposed apart from the cover body, and the sound-absorbing material has a peripheral edge that contacts with an inner wall of an edge of the cover body.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Inventors: Takahiro Niwa, Motonori Kondoh, Tadashi Mori