Patents by Inventor Yasushi Kawamura

Yasushi Kawamura 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: 6422632
    Abstract: As a moveable part of the vehicle body carrying a vehicle seat moves rearward under the action of an active or passive power source as a result of a vehicle crash, the seat belt which is anchored at the moveable part at one end and a fixed part of the vehicle body at another end is pulled rearward, and performs the function to apply a deceleration to the vehicle occupant in an early phase of the vehicle crash. This is followed by a slight slackening of the seat belt as the moveable part is subjected to a forward force. The active power source typically consists of a high pressure gas generating device, and a passive power source typically consists of a G control member which transmits the deceleration of a vehicle crash to the vehicle occupant from an early phase of the crash, and/or a stopper which applies a forward force to the moveable part as the moveable part moves rearward by a prescribed distance under the action of the power source.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: July 23, 2002
    Assignee: Honda Giken Kogyo Kabushi Kaisha
    Inventors: Takahiro Kamei, Tatsuo Iwabe, Yasushi Kawamura, Makoto Tsuruta, Yasuki Motozawa, Kazuya Yoshida
  • Publication number: 20020084131
    Abstract: A lock plate and a movable plate are provided to fix a seat at an optional position, and an actuator is provided between the seat and the movable plate. The seat is moved to the rear of a vehicle body in an initial stage of impact by the actuator. Acceleration is generated in the seat through impact abutment of a collapsible tube in the actuator against a piston head in an intermediate stage of impact. In a final stage of the impact, the seat is made integral with the vehicle body. The deceleration of a vehicle body and a seat and the deceleration of an occupant can be made equal to each other at an earlier timing. The apparatus can be installed by making use of a space under the seat, whereby the necessity of securing a special vacant space for installation of the apparatus can be obviated.
    Type: Application
    Filed: October 30, 2001
    Publication date: July 4, 2002
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Yasuki Motozawa, Takahiro Kamei, Yasushi Kawamura
  • Patent number: 6402218
    Abstract: Provided is a seat belt pretensioner device for a seat belt having a plurality of anchor points attached to different parts of a vehicle body which includes a G control vehicle body member which deforms in a different pattern from a remaining part of the vehicle body at the time of a vehicle crash. One of the anchor points, which typically consists of a seat belt buckle, is attached to the G control vehicle body member via a force transmitting member such as a cable member which is adapted to move the anchor point in a direction to increase a tension of the seat belt at the time of a vehicle crash. A seat belt pretensioner device can be thus achieved in a simple manner without requiring any special power actuator.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: June 11, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takahiro Kamei, Tatsuo Iwabe, Yasushi Kawamura, Makoto Tsuruta, Yasuki Motozawa, Kazuya Yoshida
  • Patent number: 6394535
    Abstract: The vehicle occupant protection system can significantly reduce the peak deceleration of the vehicle occupant even with a small vehicle body. The system comprises a seat supported on a vehicle body so as to be slidable in a direction of an input crash load resulting from a vehicle crash; a first member connected to the seat and adapted to deform under the crash load upon occurrence of a vehicle crash; a second member connected to a main part of the vehicle body and adapted to deform under the crash load; and a power actuator for applying a forward force to the seat relative to the vehicle body with a certain time delay after the occurrence of the vehicle crash; the first member being adapted to substantially deform only after the forward force is applied to the seat upon occurrence of a vehicle crash.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 28, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasushi Kawamura, Takahiro Kamei
  • Patent number: 6312038
    Abstract: In an automotive vehicle body structure comprising a seat carrying member that is moveable with respect to the main part of the vehicle body at the time of a vehicle crash so as to reduce the peak deceleration of the vehicle occupant in the seat, the seat carrying member comprises an elongated member extending in a fore-and-aft direction of the vehicle body and having a portion adapted to be deformable at the time of a vehicle crash. The seat is preferably connected to the elongated member of the seat carrying member at a widthwise center of the seat so that at the time of a vehicle crash, the inertial force of the seat and the vehicle occupant will act in the direction that the elongated member extends and substantially no horizontal moment will be applied on the seat carrying member. A seat position adjustment mechanism is preferably provided between the seat and the elongated member of the seat carrying member.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: November 6, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasushi Kawamura, Tatsuo Iwabe, Takahiro Kamei, Makoto Tsuruta, Yasuki Motozawa, Kazuya Yoshida
  • Patent number: 6254164
    Abstract: In a vehicle occupant protection system, the seat is subjected to a forward deceleration by a power actuator following a frontal vehicle crash substantially without any time delay, and following a rearward movement of the seat with respect to the vehicle body by a prescribed distance, the seat is subjected to a forward acceleration by a stopper attached to a vehicle body to prevent any excessive rise in the forward deceleration of the vehicle occupant. Thereafter, the vehicle seat is required to move substantially integrally with the vehicle body to allow the vehicle occupant to decelerate at a tolerable deceleration level by virtue of a controlled deformation of the vehicle body, and the one-way motion mechanism ensures the vehicle seat to move jointly with the vehicle body once the stopper has stopped the rearward movement of the seat.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: July 3, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasushi Kawamura, Takahiro Kamei
  • Patent number: 5795374
    Abstract: A coating composition comprising a rosin compound, a polymer containing organosilyl ester groups, and an antifoulant as essential components is disclosed. This rosin-based coating composition gives a coating film which forms no residue layer on the surface thereof over long-term immersion, is hence free from physical defects such as cracks and peeling and capable of maintaining a sufficiently high rate of film erosion and preventing the attachment of marine organisms over a long period of time has satisfactory suitability for recoating, and has the satisfactory ability to prevent marine-organism attachment over the out-fitting period.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: August 18, 1998
    Assignee: NOF Corporation
    Inventors: Masayasu Itoh, Shigeo Fukuda, Yoshihisa Kawakami, Yoshiro Matsubara, Yasushi Kawamura, Shigeru Masuoka, Yoshihiro Honda
  • Patent number: 5624889
    Abstract: A lubricating grease composition includes a grease containing a base oil and a thickening agent consisting of a mixture of tricalcium phosphate represented by the formulaCa.sub.3 (PO.sub.4).sub.2and a urea compound and, incorporated as additives in the grease, (A) a sulfurized molybdenum dialkyldithiocarbamate represented by the formula ##STR1## wherein R.sup.1 and R.sup.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: April 29, 1997
    Assignee: Showa Shell Sekiyu K.K.
    Inventors: Takahiro Ozaki, Tomoo Munakata, Yasushi Kawamura, Kazunori Takase, Tetsuo Tsuchiya
  • Patent number: 5585336
    Abstract: A grease composition for a tripod type constant velocity joint, which includes a base oil, a urea compound as a thickening agent, and not more than 10% by weight of at least one of (A) a molybdenum dialkyldithiocarbamate and (B) a molybdenum dialkyldithiophosphate or diaryldithiophosphate, in which the base oil has a kinematic viscosity of from 3.0 to 7.5 mm.sup.2 /sec at 100.degree. C. The grease composition applied to a tripod type constant velocity joint reduces the induced thrust force and thereby suppresses vibration, such as a shudder of a car body upon starting off and acceleration.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: December 17, 1996
    Assignees: Showa Shell Sekiyu K.K., NTN Corporation
    Inventors: Takahiro Ozaki, Fumio Goto, Yasushi Kawamura, Tomoo Munakata, Tetsuo Tsuchiya, Toshiharu Kato, Shin Tomogami, Shinichi Takabe
  • Patent number: 5449471
    Abstract: A urea grease composition is disclosed, which comprises a urea grease and, incorporated therein as additives, a sulfurized molybdenum dialkyldithiocarbamate represented by formula (A): ##STR1## wherein R.sub.1 and R.sub.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: September 12, 1995
    Assignees: Showa Shell Seikyu K.K., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Ozaki, Yasushi Kawamura, Tetsuo Tsuchiya, Fumio Goto, Hideaki Tsuyuki, Kazuhiro Miyajima, Takashi Matsuda, Nobuhiko Okano, Hirofumi Mochizuki