Patents by Inventor Takashi Sawa

Takashi Sawa 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: 11226495
    Abstract: A screwless hinge system for connecting a temple to a front frame portion of eyewear includes a hooked tab with a single hook and a base. The hooked tab extends through the front frame portion and a u-spring until the base engages the frame. A temple receiver of a temple compresses the u-spring and engages the single hook, allowing for opening and closing of the temple and removal and replacement of the temple without tools.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: January 18, 2022
    Assignees: Marchon Eyewear, Inc., Nakanishi Optical Products Corp.
    Inventors: Alessandro Pol, Massimiliano Maccanti, Nicole M. Troiano, Rachael N. Milluzzi, Keiichi Nakanishi, Masahide Nishida, Ken Yoshioka, Takashi Sawa
  • Publication number: 20200241319
    Abstract: A screwless hinge system for connecting a temple to a front frame portion of eyewear includes a hooked tab with a single hook and a base. The hooked tab extends through the front frame portion and a u-spring until the base engages the frame. A temple receiver of a temple compresses the u-spring and engages the single hook, allowing for opening and closing of the temple and removal and replacement of the temple without tools.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Inventors: Alessandro Pol, Massimiliano Maccanti, Nicole M. Troiano, Rachael N. Milluzzi, Keiichi Nakanishi, Masahide Nishida, Ken Yoshioka, Takashi Sawa
  • Patent number: 9515498
    Abstract: A temperature detection unit detects the temperature of a power plug. A control unit stops electric conduction to a battery when the detected temperature detected by the temperature detection unit is equal to or higher than a predetermined specified temperature (T1). The control unit recovers the electric conduction to the battery when the detected temperature detected by the temperature detection unit decreases to a specified temperature (T2) or lower, the specified temperature (T2) being lower than the specified temperature (T1).
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masanori Nishikawa, Norio Abe, Tomoyuki Kawase, Naruaki Akai, Takashi Sawa, Takaaki Hyoudou
  • Patent number: 9211801
    Abstract: A charging cable for use in charging a battery of an electrically-driven vehicle includes a power plug to be detachably connected to a receptacle outlet of a commercially available power source, a charging coupler to be detachably connected to the electrically-driven vehicle, a temperature sensor for detecting a temperature of an electric circuit between the power plug and the charging coupler, and a charging device having a controller for controlling a current value that flows from the power plug to the charging coupler. This configuration can minimize the charging time and enhance the durability between the charging cable and the receptacle outlet and between the charging cable and the charging coupler.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: December 15, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naruaki Akai, Norio Abe, Tomoyuki Kawase, Takashi Sawa, Masanori Nishikawa, Takaaki Hyoudou
  • Publication number: 20150028809
    Abstract: A temperature detection unit detects the temperature of a power plug. A control unit stops electric conduction to a battery when the detected temperature detected by the temperature detection unit is equal to or higher than a predetermined specified temperature (T1). The control unit recovers the electric conduction to the battery when the detected temperature detected by the temperature detection unit decreases to a specified temperature (T2) or lower, the specified temperature (T2) being lower than the specified temperature (T1).
    Type: Application
    Filed: March 8, 2013
    Publication date: January 29, 2015
    Inventors: Masanori Nishikawa, Norio Abe, Tomoyuki Kawase, Naruaki Akai, Takashi Sawa, Takaaki Hyoudou
  • Patent number: 8913389
    Abstract: Disclosed is a heat radiation device, which is in contact with a first heat-producing component having a higher value of guaranteed temperature and a second heat-producing component having a lower value of guaranteed temperature, and the heat radiation device comprises a metal member provided with a slit. The metal member is divided by the slit to have two heat radiation regions, a first heat radiation region and a second heat radiation region that are loosely coupled with each other in terms of heat conduction. The first heat-producing component is placed in contact with the first heat radiation region, and the second heat-producing component is placed in contact with the second heat radiation region.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: December 16, 2014
    Assignee: Panasonic Corporation
    Inventors: Yasuhito Fukui, Takashi Sawa, Shinichi Shinohara
  • Publication number: 20130335024
    Abstract: A charging cable A for use in charging a battery of an electrically-driven vehicle includes a power plug 14 to be detachably connected to a receptacle outlet 12 of a commercially available power source, a charging coupler 16 to be detachably connected to the electrically-driven vehicle C, a temperature sensor 14a for detecting a temperature of an electric circuit between the power plug 14 and the charging coupler 16, and a charging device 20 having a controller 20a for controlling a current value that flows from the power plug 14 to the charging coupler 16. This configuration can minimize the charging time and enhance the durability between the charging cable and the receptacle outlet and between the charging cable and the charging coupler.
    Type: Application
    Filed: March 2, 2012
    Publication date: December 19, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Naruaki Akai, Norio Abe, Tomoyuki Kawase, Takashi Sawa, Masanori Nishikawa, Takaaki Hyoudou
  • Patent number: 8542065
    Abstract: A trans-impedance amplifier (TIA) for an optical receiver is disclosed, where the TIA stabilizes the cross point in the output thereof independent of the variation of the power supply. The TIA of the invention includes an amplifier section, a source follower, and a bias generator. A transistor in the source follower to define the current flowing in the source follower and another transistor in the bias generator constitute a current-mirror circuit. The operating point of the other transistor in the bias generator depends on the variation of the power supply. The output level of the amplifier section follows the variation of the power supply.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: September 24, 2013
    Assignee: Sumitomo Electric Industries Ltd.
    Inventor: Takashi Sawa
  • Patent number: 8510911
    Abstract: A hinge, for automatically-closing a door which opens in both directions, includes a cylinder (2); an operating rod (3) to be rotatable and restricted from moving in the longitudinal direction; two substantially V-shaped grooves (33) provided on an outer periphery of the operating rod (3) in the cylinder (2) to oppose to each other; two spheres (55) provided engage the substantially V-shaped grooves (33); an upper piston (5) engaged with the spheres (55); a compression coil spring (4) disposed between the upper piston (5) and an upper end portion of the cylinder (2) and configured to urge the upper piston (5) to the other end side of the cylinder (2), and a fluid pressure shock absorbing mechanism configured to absorb a shock caused by the movement of the upper piston 5 to the other end side with a liquid pressure.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: August 20, 2013
    Assignee: Sawa Corporation
    Inventor: Takashi Sawa
  • Patent number: 8387210
    Abstract: An automatic door closing hinge is configured in such a manner that first balls (43) are engaged with a first cam groove (35) formed on an outer peripheral surface of an operating rod in a cylinder (2) at opposed positions so as to have a substantially V-shape at opposed positions thereof, the first balls (43) are engaged with a compression ring (4) urged downward by a compression coil spring (5), the movement of the first balls (43) with respect to the first cam groove (35) is in conjunction with the movement of the compression ring, second balls (65) are engaged with a second cam groove (36) formed under the first cam groove (35) and having substantially the same shape as the first cam groove (35), the second balls (65) are engaged with the piston (6), the movement of the second balls (65) with respect to the second cam groove (36) is in conjunction with the movement of the piston, and air on the lower side of the piston (6) in the cylinder is gradually flowed out according to the movement of the piston.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 5, 2013
    Assignees: Sawa Corporation, Takashi Sawa, Takashi Yamaguchi
    Inventor: Takashi Sawa
  • Publication number: 20120300406
    Abstract: Disclosed is a heat radiation device, which is in contact with a first heat-producing component having a higher value of guaranteed temperature and a second heat-producing component having a lower value of guaranteed temperature, and the heat radiation device comprises a metal member provided with a slit. The metal member is divided by the slit to have two heat radiation regions, a first heat radiation region and a second heat radiation region that are loosely coupled with each other in terms of heat conduction. The first heat-producing component is placed in contact with the first heat radiation region, and the second heat-producing component is placed in contact with the second heat radiation region.
    Type: Application
    Filed: February 3, 2011
    Publication date: November 29, 2012
    Inventors: Yasuhito Fukui, Takashi Sawa, Shinichi Shinohara
  • Publication number: 20120211912
    Abstract: It is an object of the present invention to provide: a foaming mold having a high expansion ratio and a light weight and having an excellent appearance with no surface roughness; and a method for producing a foaming mold, whereby even in the case of using thermally expandable microcapsules for injection molding, the thermally expandable microcapsules can expand uniformly to give a foaming mold having a high expansion ratio and an excellent appearance. The invention is a foaming mold having uniform and closed cells, which has a cell diameter of 60 to 120 a specific gravity of 0.6 g/ml or less, and a surface roughness of 4 ?m or less.
    Type: Application
    Filed: May 2, 2012
    Publication date: August 23, 2012
    Inventors: Yasuhiro KAWAGUCHI, Takashi SAWA
  • Publication number: 20120092073
    Abstract: A trans-impedance amplifier (TIA) for an optical receiver is disclosed, where the TIA stabilizes the cross point in the output thereof independent of the variation of the power supply. The TIA of the invention includes an amplifier section, a source follower, and a bias generator. A transistor in the source follower to define the current flowing in the source follower and another transistor in the bias generator constitute a current-mirror circuit. The operating point of the other transistor in the bias generator depends on the variation of the power supply. The output level of the amplifier section follows the variation of the power supply.
    Type: Application
    Filed: November 2, 2011
    Publication date: April 19, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Takashi SAWA
  • Publication number: 20100319260
    Abstract: A hinge for automatically-closing a door which opens in both directions with a shock absorbing function, which allows installation on a door which opens in both directions and is opened inward and outward, including a cylinder 2; an operating rod 3 attached to one end of the cylinder 2 so as to be rotatable and restricted from moving in the longitudinal direction; two substantially V-shaped grooves 33 provided on an outer periphery of the operating rod 3 in the cylinder 2 so as to oppose to each other; two spheres 55 provided so as to engage the substantially V-shaped grooves 33 and disposed so as to oppose to each other; an upper piston 5 engaged with the spheres 55 and moved in the cylinder 2 in the longitudinal direction in conjunction with the movement of the spheres 55 with respect to the substantially V-shaped groove 33; a compression coil spring 4 disposed between the upper piston 5 and an upper end portion of the cylinder 2 and configured to urge the upper piston 5 to the other end side of the cylinde
    Type: Application
    Filed: January 28, 2009
    Publication date: December 23, 2010
    Applicant: SAWA Corporation
    Inventor: Takashi Sawa
  • Publication number: 20100263289
    Abstract: An automatic door closing hinge configured to absorb a shock by an air damper which can be installed on a double swing door opening inward and outward and a double swing door structure provided with the automatic door closing hinge are provided.
    Type: Application
    Filed: November 27, 2007
    Publication date: October 21, 2010
    Applicants: Sawa Corporation, Takashi Yamaguchi
    Inventor: Takashi Sawa
  • Publication number: 20090148698
    Abstract: It is an object of the present invention to provide: a foaming mold having a high expansion ratio and a light weight and having an excellent appearance with no surface roughness; and a method for producing a foaming mold, whereby even in the case of using thermally expandable microcapsules for injection molding, the thermally expandable microcapsules can expand uniformly to give a foaming mold having a high expansion ratio and an excellent appearance. The invention is a foaming mold having uniform and closed cells, which has a cell diameter of 60 to 120 ?m, a specific gravity of 0.6 g/ml or less, and a surface roughness of 4 ?m or less.
    Type: Application
    Filed: December 25, 2006
    Publication date: June 11, 2009
    Inventors: Yasuhiro Kawaguchi, Takashi Sawa