Patents by Inventor Masato Hirokawa

Masato Hirokawa 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: 9062706
    Abstract: The present invention provides a mechanism for operating a vehicle split seat whereby operation levers of two seat backs can be arranged compactly on a wall surface of a luggage compartment or the like such that the two operation levers have the same pivot support point, without impairing operability of the levers. Two operation levers 31, 32 are respectively connected to locking mechanisms of at least two adjacent seat backs 11B by way of operation cables 22, 23, the operation levers 31, 32 being formed of a central lever 32 and an outer lever 31 provided outside the central lever having the same pivot support point, operation parts being provided on the free end sides of arm parts of both the levers 31, 32 and operating spaces X, Y, Z which allow both the levers 31, 32 to be operated individually also being provided.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 23, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Masato Hirokawa, Satoshi Fujita, Keisuke Iida, Saori Mito, Nanae Michida, Yuina Ashihara
  • Publication number: 20130200678
    Abstract: The present invention provides a mechanism for operating a vehicle split seat whereby operation levers of two seat backs can be arranged compactly on a wall surface of a luggage compartment or the like such that the two operation levers have the same pivot support point, without impairing operability of the levers. Two operation levers 31, 32 are respectively connected to locking mechanisms of at least two adjacent seat backs 11B by way of operation cables 22, 23, the operation levers 31, 32 being formed of a central lever 32 and an outer lever 31 provided outside the central lever having the same pivot support point, operation parts being provided on the free end sides of arm parts of both the levers 31, 32 and operating spaces X, Y, Z which allow both the levers 31, 32 to be operated individually also being provided.
    Type: Application
    Filed: November 22, 2011
    Publication date: August 8, 2013
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masato Hirokawa, Satoshi Fujita, Keisuke Iida, Saori Mito, Nanae Michida, Yuina Ashihara
  • Publication number: 20070085368
    Abstract: A vehicle body structure of a vehicle including a seat, having a baggage compartment at a rear portion in a cabin, comprises a seat back supported by a hinge member provided at a lower portion of the seat so as to rotate in a longitudinal direction, the seat back being provided to be held in a specified upright position, a first engagement portion provided at an outside end portion of the seat back, a second engagement portion provided at a portion of a vehicle sidewall portion corresponding to the first engagement portion, wherein the first and second engagement portions are configured to be fixed in a vehicle width direction when the seat back is in the specified upright position. Thereby, a rigidity of the vehicle body can be improved by using the seat back.
    Type: Application
    Filed: August 23, 2006
    Publication date: April 19, 2007
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masato Hirokawa, Yoh Koizumi, Kenji Satani, Masao Hara, Yusuke Kohge, Shigeaki Watanabe, Gunji Yoshii, Kazuhiro Matsuhashi, Keisuke Iida, Masaki Nishino, Masato Shimada, Yoshitaka Fujihara, Hiromasa Honji, Yuji Ohta, Hiroshi Okiyama, Tsutomu Naganuma