Patents by Inventor Tatsuya Kawai

Tatsuya Kawai 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: 10827256
    Abstract: An alarm sound generating apparatus includes a spiral pipe extending from a sound wave inlet to a sound wave outlet, and a cover including a reflecting wall configured to reflect a sound wave released from the sound wave outlet. The reflecting wall is distanced from and faces to the sound wave outlet. A distance between the sound wave outlet and the reflecting wall falls within ±10% of an odd multiple of one-fourth of a wavelength calculated from a fundamental frequency of the alarm sound or a multiple harmonic thereof.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 3, 2020
    Assignee: HAMANAKODENSO CO., LTD.
    Inventors: Tatsuya Kawai, Yuuya Maebashi
  • Patent number: 10744861
    Abstract: The weather strip for an automobile includes an extrusion formed portion and a molding formed portion and each includes an attaching base portion and a sealing portion. The attaching base portion includes an attaching base portion bottom side portion which faces the outer peripheral portion of the opening and closing member for the opening of the vehicle body or the outer peripheral brim of the opening. A core removing slit is formed at the attaching base portion bottom side portion extending in a longitudinal direction and a connecting sheet provided for covering an outer surface of the attaching base portion bottom side portion by crossing over the core removing slit, The connecting sheet is formed by an olefin system resin and a surface of the connecting sheet facing the attaching base portion bottom side portion is fusion-bonded to the outer surface of the attaching base portion bottom side portion.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 18, 2020
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Tatsuya Kawai, Tomoaki Aiso, Daisuke Hokama, Kiminori Mine
  • Publication number: 20200236460
    Abstract: An alarm sound generating apparatus includes a spiral pipe extending from a sound wave inlet to a sound wave outlet, and a cover including a reflecting wall configured to reflect a sound wave released from the sound wave outlet. The reflecting wall is distanced from and faces to the sound wave outlet. A distance between the sound wave outlet and the reflecting wall falls within ±10% of an odd multiple of one-fourth of a wavelength calculated from a fundamental frequency of the alarm sound or a multiple harmonic thereof.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Tatsuya KAWAI, Yuuya MAEBASHI
  • Publication number: 20180354352
    Abstract: The weather strip for an automobile includes an extrusion formed portion and a molding formed portion and each includes an attaching base portion and a sealing portion. The attaching base portion includes an attaching base portion bottom side portion which faces the outer peripheral portion of the opening and closing member for the opening of the vehicle body or the outer peripheral brim of the opening. A core removing slit is formed at the attaching base portion bottom side portion extending in a longitudinal direction and a connecting sheet provided for covering an outer surface of the attaching base portion bottom side portion by crossing over the core removing slit, The connecting sheet is formed by an olefin system resin and a surface of the connecting sheet facing the attaching base portion bottom side portion is fusion-bonded to the outer surface of the attaching base portion bottom side portion.
    Type: Application
    Filed: May 18, 2018
    Publication date: December 13, 2018
    Inventors: Tatsuya KAWAI, Tomoaki Aiso, Daisuke Hokama, Kiminori Mine
  • Patent number: 9783225
    Abstract: An electric power steering device includes a restricting portion that is provided on at least one of surfaces of a housing and a worm wheel, the surfaces facing each other. The restricting portion is configured to restrict movement of the worm wheel to maintain a meshing relationship between a worm and the worm wheel that allows torque transmission between the worm and the worm wheel, when fixing of the worm wheel to an output shaft of a power assist actuator in an axial direction of the output shaft is released and the worm wheel is moved in the axial direction.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: October 10, 2017
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Suzuki, Shingo Ougita, Tatsuya Kawai, Toshinobu Maeda, Naohiro Sato, Yasutaka Fukumoto
  • Publication number: 20160176438
    Abstract: An electric power steering device includes a restricting portion that is provided on at least one of surfaces of a housing and a worm wheel, the surfaces facing each other. The restricting portion is configured to restrict movement of the worm wheel to maintain a meshing relationship between a worm and the worm wheel that allows torque transmission between the worm and the worm wheel, when fixing of the worm wheel to an output shaft of a power assist actuator in an axial direction of the output shaft is released and the worm wheel is moved in the axial direction.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 23, 2016
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki SUZUKI, Shingo OUGITA, Tatsuya KAWAI, Toshinobu MAEDA, Naohiro SATO, Yasutaka FUKUMOTO
  • Patent number: 8782954
    Abstract: A glass run includes a glass run section, a trim section and a molding section. The glass run section is formed of a soft material, the trim section is formed of a hard material and the molding section is formed of a hard material by injection molding. The molding section includes a head part and a leg part, and has a generally T-shaped cross-section. A bottom wall of the trim section and an outer side wall of the glass run section are integrally joined to an interior surface of the head part of the molding section, while sandwiching the leg part of the molding section. A side wall of the trim section, is integrally joined to one of side surfaces of the leg part, whereas a bottom wall of the glass run section is integrally joined to the other side surface of the leg part.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 22, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Tatsuya Kawai, Yoshihisa Kubo, Yoshihiro Miura, Kentaro Adachi
  • Patent number: 8765041
    Abstract: A method for producing a weather strip including an extrusion molded extrusion molded portion, an injection molded portion which is formed by a molding device having a plurality of mold members and connects both ends of the extrusion molded portions in a straight line shape, a mounting base portion which is mounted on a circumferential edge of an opening of a body or a circumferential edge of an opening/closing member for opening and closing the opening, and a hollow sealing portion which protrudes from the mounting base portion, and is pressed against an opposite member when the opening/closing member for opening and closing the opening is closed.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: July 1, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hideaki Minoura, Kazuhiro Takahashi, Yoshihisa Kubo, Tatsuya Kawai
  • Publication number: 20130292874
    Abstract: A method for producing a weather strip including an extrusion molded extrusion molded portion, an injection molded portion which is formed by a molding device having a plurality of mold members and connects both ends of the extrusion molded portions in a straight line shape, a mounting base portion which is mounted on a circumferential edge of an opening of a body or a circumferential edge of an opening/closing member for opening and closing the opening, and a hollow sealing portion which protrudes from the mounting base portion, and is pressed against an opposite member when the opening/closing member for opening and closing the opening is closed.
    Type: Application
    Filed: July 11, 2013
    Publication date: November 7, 2013
    Inventors: Hideaki Minoura, Kazuhiro Takahashi, Yoshihisa Kubo, Tatsuya Kawai
  • Patent number: 8461734
    Abstract: Winding start sections and winding end sections of winding wires are pulled out from slots of an armature core and are guided by wire guides of an insulator. Thereafter, each corresponding one of the winding start sections and the winding end sections is guided by a corresponding winding holding portion and is directly connected to a corresponding one of power supply terminal elements of a circuit apparatus without using an intermediate terminal.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: June 11, 2013
    Assignee: ASMO Co., Ltd.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai
  • Publication number: 20130074417
    Abstract: A glass run includes a glass run section, a trim section and a molding section. The glass run section is formed of a soft material, the trim section is formed of a hard material and the molding section is formed of a hard material by injection molding. The molding section includes a head part and a leg part, and has a generally T-shaped cross-section. A bottom wall of the trim section and an outer side wall of the glass run section are integrally joined to an interior surface of the head part of the molding section, while sandwiching the leg part of the molding section. A side wall of the trim section, is integrally joined to one of side surfaces of the leg part, whereas a bottom wall of the glass run section is integrally joined to the other side surface of the leg part.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Tatsuya Kawai, Yoshihisa Kubo, Yoshihiro Miura, Kentaro Adachi
  • Publication number: 20120240473
    Abstract: A weather strip includes an extrusion molded extrusion molded portion, an injection molded portion which connects both ends of the extrusion molded portions in a straight line shape, a trim portion which is mounted on a circumferential edge of an opening of a luggage compartment, and a hollow sealing portion which protrudes from the trim portion. The injection molded portion is formed such that a width thereof is 2.0. The hollow sealing portion is provided with a core withdrawing hole, through which a core mold forming an inner peripheral surface of the hollow sealing portion is withdrawn after formation. The core withdrawing hole is formed such that a length thereof along a circumferential direction of the inner peripheral surface of the hollow sealing portion is 40% of a circumferential length of the inner peripheral surface.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Hideaki Minoura, Kazuhiro Takahashi, Yoshihisa Kubo, Tatsuya Kawai
  • Patent number: 7859155
    Abstract: A second ball bearing is installed from a first axial side toward a second axial side into an interior of a bearing holder of a rotor through an opening of the bearing holder, so that an outer race of the second ball bearing is press fitted to an inner peripheral portion of the interior of the bearing holder. A first ball bearing is inserted from the first axial side toward the second axial side into the interior of the bearing holder of the rotor through the opening of the bearing holder after the installing of the second ball bearing, so that an outer race of the first ball bearing is press fitted to the inner peripheral portion of the interior of the bearing holder and is axially spaced from the outer race of the second ball bearing.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: December 28, 2010
    Assignee: ASMO Co., Ltd.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai, Bungo Mizutani
  • Publication number: 20100299912
    Abstract: A second ball bearing is installed from a first axial side toward a second axial side into an interior of a bearing holder of a rotor through an opening of the bearing holder, so that an outer race of the second ball bearing is press fitted to an inner peripheral portion of the interior of the bearing holder. A first ball bearing is inserted from the first axial side toward the second axial side into the interior of the bearing holder of the rotor through the opening of the bearing holder after the installing of the second ball bearing, so that an outer race of the first ball bearing is press fitted to the inner peripheral portion of the interior of the bearing holder and is axially spaced from the outer race of the second ball bearing.
    Type: Application
    Filed: July 30, 2010
    Publication date: December 2, 2010
    Applicant: ASMO CO., LTD.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai, Bungo Mizutani
  • Publication number: 20100295394
    Abstract: Winding Start Sections and Winding End Sections of Winding Wires are Pulled out from slots of an armature core and are guided by wire guides of an insulator. Thereafter, each corresponding one of the winding start sections and the winding end sections is guided by a corresponding winding holding portion and is directly connected to a corresponding one of power supply terminal elements of a circuit apparatus without using an intermediate terminal.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 25, 2010
    Applicant: ASMO CO., LTD.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai
  • Patent number: 7800267
    Abstract: A second ball bearing is installed from a first axial side toward a second axial side into an interior of a bearing holder of a rotor through an opening of the bearing holder, so that an outer race of the second ball bearing is press fitted to an inner peripheral portion of the interior of the bearing holder. A first ball bearing is inserted from the first axial side toward the second axial side into the interior of the bearing holder of the rotor through the opening of the bearing holder after the installing of the second ball bearing, so that an outer race of the first ball bearing is press fitted to the inner peripheral portion of the interior of the bearing holder and is axially spaced from the outer race of the second ball bearing.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: September 21, 2010
    Assignee: Asmo Co., Ltd.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai, Bungo Mizutani
  • Patent number: 7745964
    Abstract: In a brushless motor, a stator includes an annular core member. A rotatable shaft is placed radially inward of the core member and extends in an axial direction. A rotor is supported by the rotatable shaft. A centerpiece supports the core member and includes a center portion, which is placed radially inward of the core member. A platy vibration absorbing member connects between the core member and the center portion of the centerpiece and damps circumferential vibrations transmitted from the core member.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 29, 2010
    Assignee: Asmo Co., Ltd.
    Inventors: Fumio Fukuno, Tatsuya Kawai, Masashi Matsuda
  • Publication number: 20090152967
    Abstract: A second ball bearing is installed from a first axial side toward a second axial side into an interior of a bearing holder of a rotor through an opening of the bearing holder, so that an outer race of the second ball bearing is press fitted to an inner peripheral portion of the interior of the bearing holder. A first ball bearing is inserted from the first axial side toward the second axial side into the interior of the bearing holder of the rotor through the opening of the bearing holder after the installing of the second ball bearing, so that an outer race of the first ball bearing is press fitted to the inner peripheral portion of the interior of the bearing holder and is axially spaced from the outer race of the second ball bearing.
    Type: Application
    Filed: November 20, 2008
    Publication date: June 18, 2009
    Applicant: ASMO CO., LTD.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai, Bungo Mizutani
  • Patent number: 7508097
    Abstract: A PCU having an inverter and the like includes a connector electrically connecting the PCU and external equipment located outside the PCU, a safety bar attaching the connector for preventing the connector from being touched, and an ECU detecting that an interlock circuit is opened via an interlock signal line in response to detachment of the safety bar to shut off supply of electric power to the PCU.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: March 24, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Norifumi Furuta, Masami Inagaki, Masaaki Kaneko, Tatsuya Kawai
  • Publication number: 20080296985
    Abstract: In a brushless motor, a stator includes an annular core member. A rotatable shaft is placed radially inward of the core member and extends in an axial direction. A rotor is supported by the rotatable shaft. A centerpiece supports the core member and includes a center portion, which is placed radially inward of the core member. A platy vibration absorbing member connects between the core member and the center portion of the centerpiece and damps circumferential vibrations transmitted from the core member.
    Type: Application
    Filed: May 22, 2008
    Publication date: December 4, 2008
    Applicant: ASMO CO., LTD.
    Inventors: Fumio Fukuno, Tatsuya Kawai, Masashi Matsuda