Patents by Inventor Keiichiro Maekawa

Keiichiro Maekawa 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: 11125258
    Abstract: A connector includes a first connector body with an attachment hole and a second connector body provided with a shaft portion. A keyway is formed in a sidewall of the shaft portion. Moreover, the first connector body includes a pivoting member pivoting by being pressed by the shaft portion rotating inside the attachment hole and an elastic member for returning the pivoting member that has pivoted to an original position. The pivoting member is provided with an engaging portion engaging with the keyway.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 21, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takaaki Toyoda, Takashi Nakano, Takafumi Murakoshi, Keiichiro Maekawa, Yuki Sato, Kenichiro Mori
  • Publication number: 20190293095
    Abstract: A connector includes a first connector body with an attachment hole and a second connector body provided with a shaft portion. A keyway is formed in a sidewall of the shaft portion. Moreover, the first connector body includes a pivoting member pivoting by being pressed by the shaft portion rotating inside the attachment hole and an elastic member for returning the pivoting member that has pivoted to an original position. The pivoting member is provided with an engaging portion engaging with the keyway.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Inventors: Takaaki Toyoda, Takashi Nakano, Takafumi Murakoshi, Keiichiro Maekawa, Yuki Sato, Kenichiro Mori
  • Publication number: 20180096538
    Abstract: After an air-bag inspection device (10) is set to a steering wheel (12), a lock release lever (48) is operated to move a lock plate (44) from a lock position to a lock release position, thereby releasing lock of a rotating plate (43). A coil spring (38) is urged to allow a left and a right clamp shafts (33) (34) to press an inner peripheral surface of the steering wheel (12). This pressing force allows the air-bag inspection device (10) to be attached to the steering wheel (12). When the start button (51) is pressed, a left sensor (14) and a right sensor (15) measure a distance to the air-bag (11). When measurement data falls within a preliminarily set predetermined range, a control device (16) determines that the air-bag (11) is properly attached to the steering wheel (12) and turns on an OK lamp (53).
    Type: Application
    Filed: August 7, 2017
    Publication date: April 5, 2018
    Inventors: Takafumi Murakoshi, Keiichiro Maekawa, Masamori Umegae, Hiroshi Miwa, Hiroshi Saito, Taisuke Yoshida
  • Patent number: 7818863
    Abstract: A window glass can be accurately and preferably mounted by correcting a displacement of a curved surface shape of the window glass in the crosswise direction even when there is a displacement of the curved surface shape of the window glass in the crosswise direction. A slit laser beam is irradiated with from slit laser beam irradiators 12c and 12d across the right and left ends of the window glass 6, the circumference of a window glass mounting opening 8, and a windshield pillar section 11; rotation adjustment of the window glass 6 is performed, based on a processed image obtained by image processing of images, which have been photographed with a CCD cameras 10c and 10d, of the slit laser beams, in such a way that clearances in the pressing direction at the right and left ends of the window glass 6 are the same as each other; and the window glass 6 is pressed onto a window glass mounting surface on the circumference of the window glass mounting opening 8 for mounting onto the surface.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: October 26, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Keiichiro Maekawa, Toshihisa Shimoda, Kenji Kusumegi, Takafumi Murakoshi
  • Patent number: 7788782
    Abstract: A first reference position C1 constituting a middle point is calculated by measuring positions of left and right damper attaching holes 22 in a white body 12. A second reference position C2 constituting a middle point is calculated by measuring positions of left and right hubs 44 in a suspension assembly 20. A position of the suspension assembly 20 is adjusted by a slide table 56 such that the first reference position C1 and the second reference position C2 are coincident with each other. The suspension assembly 20 is moved up by a lift mechanism 59 and is attached to the white body 12.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: September 7, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshihisa Shimoda, Keiichiro Maekawa
  • Publication number: 20070055484
    Abstract: A first reference position C1 constituting a middle point is calculated by measuring positions of left and right damper attaching holes 22 in a white body 12. A second reference position C2 constituting a middle point is calculated by measuring positions of left and right hubs 44 in a suspension assembly 20. A position of the suspension assembly 20 is adjusted by a slide table 56 such that the first reference position C1 and the second reference position C2 are coincident with each other. The suspension assembly 20 is moved up by a lift mechanism 59 and is attached to the white body 12.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 8, 2007
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Toshihisa Shimoda, Keiichiro Maekawa
  • Publication number: 20070039152
    Abstract: A window glass can be accurately and preferably mounted by correcting a displacement of a curved surface shape of the window glass in the crosswise direction even when there is a displacement of the curved surface shape of the window glass in the crosswise direction. A slit laser beam is irradiated with from slit laser beam irradiators 12c and 12d across the right and left ends of the window glass 6, the circumference of a window glass mounting opening 8, and a windshield pillar section 11; rotation adjustment of the window glass 6 is performed, based on a processed image obtained by image processing of images, which have been photographed with a CCD cameras 10c and 10d, of the slit laser beams, in such a way that clearances in the pressing direction at the right and left ends of the window glass 6 are the same as each other; and the window glass 6 is pressed onto a window glass mounting surface on the circumference of the window glass mounting opening 8 for mounting onto the surface.
    Type: Application
    Filed: June 3, 2004
    Publication date: February 22, 2007
    Inventors: Keiichiro Maekawa, Toshihisa Shimoda, Kenji Kusumegi, Takafumi Murakoshi
  • Patent number: 6257056
    Abstract: While a vehicle is running on a bench type of testing apparatus for inspecting a cornering control mechanism, the connection of one of drums on which one of the left and right driving wheels is mounted is released from the other drums. Then, the rotational speed of one of the driving wheels increases and the rotational speed of the other of the driving wheels decreases. At this time, a controller mounted on the vehicle judges that the vehicle is in an oversteering state, and the brake of one of the driving wheels is switched on (or operated). Then, based on the deceleration of one of the driving wheels, a discrimination is made as to whether the cornering control mechanism has operated normally or not. Since the rotational speed of one of the driving wheels decreases also when an accelerator is switched off (or pressing down of the accelerator pedal is released), a discrimination is made based on the deceleration of the other of the driving wheels as to whether the accelerator is switched off or not.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: July 10, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takao Shibayama, Kazuyuki Fukamachi, Keiichiro Maekawa
  • Patent number: 5495753
    Abstract: An apparatus for testing an anti-lock brake system has rolls and device for detecting rotational changes of the rolls. The test is performed by running a vehicle having mounted thereon the anti-lock brake system while wheels of the vehicle are placed on the rolls, actuating the anti-lock brake system when a predetermined speed has been attained, and judging operating conditions of the anti-lock brake system from rotational changes of the rolls at the time of braking. In the apparatus, the friction coefficient of each of the rolls is set to such a value that a frictional force to act between each of the rolls and each of the wheels at the time of braking exceeds an inertia force of each of the rolls.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: March 5, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Watanabe, Takao Shibayama, Kimitake Uzuyama, Kazuyuki Fukamachi, Keiichiro Maekawa, Masaru Maruo
  • Patent number: 5483823
    Abstract: A running control function of a motorcar is inspected on an inspecting apparatus which is provided with rolls for mounting thereon each of wheels of the motorcar. The control function operates to control rotational speeds of wheels depending on a difference in rotational speed between front and rear wheels or right and left wheels of the motorcar. The motorcar is caused to run in a condition in which each of the wheels of the motorcar is mounted on each of the rolls. When a rotational speed of a first roll for mounting thereon one of front and rear wheels or one of right and left wheels and a rotational speed of a second roll for mounting thereon the other of the front and rear wheels or the other of the right and left wheels have both increased to a predetermined speed, the first roll is decelerated.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: January 16, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takao Shibayama, Keiichiro Maekawa, Kimitake Uzuyama, Masaru Maruo, Akihito Fukutome, Yoshiharu Nakazono, Yoshimichi Matsumoto
  • Patent number: 5465616
    Abstract: A plurality of control functions of a motorcar are inspected by grouping the control functions into a first group having a function of accelerating at least one wheel and a second group having a function of decelerating at least one wheel. The inspection of the control functions which belong to the first group is carried out during a process of accelerating the motorcar and the inspection of the control functions which belong to the second group is carried out in a process of decelerating the motorcar.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: November 14, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takao Shibayama, Keiichiro Maekawa
  • Patent number: 5402676
    Abstract: A running control function of a motorcar is inspected on an inspecting apparatus which is provided with rolls for mounting thereon each of wheels of the motorcar. The control function operates to control rotational speeds of wheels depending on a difference in rotational speed between front and rear wheels or right and left wheels of the motorcar. The motorcar is caused to run in a condition in which each of the wheels of the motorcar is mounted on each of the rolls. When a rotational speed of a first roll for mounting thereon one of front and rear wheels or one of right and left wheels and a rotational speed of a second roll for mounting thereon the other of the front and rear wheels or the other of the right and left wheels have both increased to a predetermined speed, the first roll is decelerated.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: April 4, 1995
    Assignee: Honda Giken Kogyo Kabushiki
    Inventors: Takao Shibayama, Keiichiro Maekawa, Kimitake Uzuyama, Masaru Maruo, Akihito Fukutome, Yoshiharu Nakazono, Yoshimichi Matsumoto
  • Patent number: 5339682
    Abstract: An apparatus for testing an anti-lock brake system has rolls and device for detecting rotational changes of the rolls. The test is performed by running a vehicle having mounted thereon the anti-lock brake system while wheels of the vehicle are placed on the rolls, actuating the anti-lock brake system when a predetermined speed has been attained, and judging operating conditions of the anti-lock brake system from rotational changes of the rolls at the time of braking. In the apparatus, the friction coefficient of each of the rolls is set to such a value that a frictional force to act between each of the rolls and each of the wheels at the time of braking exceeds an inertia force of each of the rolls.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: August 23, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Watanabe, Takao Shibayama, Kimitake Uzuyama, Kazuyuki Fukamachi, Keiichiro Maekawa, Masaru Maruo
  • Patent number: 5335537
    Abstract: A limited slip differential which is incorporated into a differential gear for driving one wheel and the other wheel of a vehicle is inspected as follows. One wheel and the other wheel are mounted on one roll and on another roll, respectively. Acceleration of the vehicle is performed while the aforementioned one roll on which the aforementioned one wheel is mounted is being subjected to a force of restraining the rotation of the aforementioned one roll. A difference in rotational speed between the aforementioned one roll and the aforementioned another roll on which the other wheel is mounted is measured during the accelerating operation. A torque which operates on the aforementioned one roll is measured. A limited slip differential torque which is generated by the limited slip differential is measured from the measured torque.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 9, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takao Shibayama, Keiichiro Maekawa, Akihito Fukutome, Yoshiharu Nakazono, Yoshimichi Matsumoto