Patents by Inventor Kazuma Nakazawa

Kazuma Nakazawa 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: 10227743
    Abstract: The invention provides an apparatus, program, and method for controlling the automatic spraying of an antifreezing agent that can reduce the cost of the antifreezing agent and the impact of salt damages caused by the antifreezing agent. This is accomplished by reducing the amount of antifreezing agent to be sprayed automatically according to road surface condition and reducing the amount of the antifreezing agent left unused on completion of the spray operation by grasping in advance the total spray amount of the antifreezing agent.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 12, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Kazuma Nakazawa, Yasumichi Wakao, Go Nagaya, Shinya Tsuchida, Yasushi Hanatsuka, Hiroshi Morinaga, Tomonori Ohiro
  • Publication number: 20170241778
    Abstract: The invention provides a method for accurately predicting a road surface condition at a location within a predetermined range. To that end, the road surface conditions at the location within the predetermined range are predicted using road surface estimation decision values calculated using vehicular information, which is the information on the behavior of a vehicle Wi during travel obtained by an on-board sensor mounted on the vehicle, or estimated road surface conditions estimated using the road surface estimation decision values. In doing so, the road surface condition at the location within the predetermined range is predicted based on the road surface estimation decision values calculated for the location within the predetermined range or the time-dependent changes in the estimated road surface conditions.
    Type: Application
    Filed: October 14, 2015
    Publication date: August 24, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasushi HANATSUKA, Kazuma NAKAZAWA, Yasumichi WAKAO
  • Patent number: 9561695
    Abstract: The present invention provides a tire internal pressure warning system, comprising: an internal pressure data acquisition apparatus for obtaining data of internal pressure of each tire 5 of a vehicle 6 (a TPMS sensor transmitter 1 and a TPMS receiver 2); and an information terminal device 3 for determining whether there is a puncture-based failure or a failure resulting from a natural pressure drop, based on a change in the internal pressure of each tire received from the TPMS receiver 2, and displaying a warning in accordance with the failure condition.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: February 7, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shotaro Horikoshi, Kazuma Nakazawa
  • Publication number: 20160281312
    Abstract: The invention provides an apparatus, program, and method for controlling the automatic spraying of an antifreezing agent that can reduce the cost of the antifreezing agent and the impact of salt damages caused by the antifreezing agent. This is accomplished by reducing the amount of antifreezing agent to be sprayed automatically according to road surface condition and reducing the amount of the antifreezing agent left unused on completion of the spray operation by grasping in advance the total spray amount of the antifreezing agent.
    Type: Application
    Filed: November 6, 2014
    Publication date: September 29, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kazuma NAKAZAWA, Yasumichi WAKAO, Go NAGAYA, Shinya TSUCHIDA, Yasushi HANATSUKA, Hiroshi MORINAGA, Tomonori OHIRO
  • Publication number: 20150239307
    Abstract: The present invention provides a tire internal pressure warning system, comprising: an internal pressure data acquisition apparatus for obtaining data of internal pressure of each tire 5 of a vehicle 6 (a TPMS sensor transmitter 1 and a TPMS receiver 2); and an information terminal device 3 for determining whether there is a puncture-based failure or a failure resulting from a natural pressure drop, based on a change in the internal pressure of each tire received from the TPMS receiver 2, and displaying a warning in accordance with the failure condition.
    Type: Application
    Filed: September 10, 2013
    Publication date: August 27, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shotaro Horikoshi, Kazuma Nakazawa
  • Patent number: 7891385
    Abstract: To reliably supply a predetermined amount of sealing agent into a pneumatic tire even if the device is inclined and after the predetermined amount of sealing agent is supplied, to automatically start feeding compressed air into the pneumatic tire. In pumping device 30, when compressed air is supplied to air chamber 54, internal pressure of air chamber 54 increases, and as the internal pressure of air chamber 54 rises, a contained volume of air chamber 54 increases while a contained volume of liquid container 52 decreases. Thus, sealing agent 100 in an amount corresponding to the amount corresponding to the reduction in the contained volume of liquid container 52, is forcibly discharged from discharge outlet 64 and the discharged sealing agent 100 is injected into tire 90.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: February 22, 2011
    Assignee: Bridgestone Corporation
    Inventors: Hideshi Yanagi, Daisuke Sugio, Kazuma Nakazawa, Shinichi Iwasaki, Rieko Iwasaki, legal representative, Yuji Takeda, Masaki Yoshida
  • Patent number: 7589135
    Abstract: A puncture sealing agent includes at least a rubber latex solution, a short fiber and a clay base viscosity improver, the viscosity of the rubber latex solution after addition of the clay base viscosity improver being 3 to 6000 mPa·s in a range of +50 to ?20° C.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: September 15, 2009
    Assignee: Bridgestone Corporation
    Inventors: Daisuke Sugio, Ryuji Izumoto, Kazuma Nakazawa
  • Patent number: 7531056
    Abstract: A manufacturing method for annular run-flat tire support which has a supporting part and a leg part, and which, at the time of run-flat running, is capable of carrying load, comprises the steps of supplying said supporting part and said leg part, applying a bonding agent including a chemical conversion treatment to the bonding region of the radial-direction inside end part of said supporting part that is provided for bonding to said leg part, and bonding between said radial-direction inside end part and said leg part. Thereby, a manufacturing method for run-flat tire support which maintains a high bondability between the supporting part and the leg part, and is excellent in durability, and a run-flat tire support are provided.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: May 12, 2009
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Iwasaki, Kazuma Nakazawa, Humitaka Ino, Yoshikatsu Hatakeyama, Shintaro Hayashi
  • Publication number: 20090056850
    Abstract: To reliably supply a predetermined amount of sealing agent into a pneumatic tire even if the device is inclined and after the predetermined amount of sealing agent is supplied, to automatically start feeding compressed air into the pneumatic tire. In pumping device 30, when compressed air is supplied to air chamber 54, internal pressure of air chamber 54 increases, and as the internal pressure of air chamber 54 rises, a contained volume of air chamber 54 increases while a contained volume of liquid container 52 decreases. Thus, sealing agent 100 in an amount corresponding to the amount corresponding to the reduction in the contained volume of liquid container 52, is forcibly discharged from discharge outlet 64 and the discharged sealing agent 100 is injected into tire 90.
    Type: Application
    Filed: May 26, 2005
    Publication date: March 5, 2009
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hideshi Yanagi, Daisuke Sugio, Kazuma Nakazawa, Shinichi Iwasaki, Rieko Iwasaki, Yuji Takeda, Masaki Yoshida
  • Publication number: 20070149653
    Abstract: A puncture sealing agent includes at least a rubber latex solution, a short fiber and a clay base viscosity improver, the viscosity of the rubber latex solution after addition of the clay base viscosity improver being 3 to 6000 mPa·s in a range of +50 to ?20° C.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 28, 2007
    Inventors: Daisuke Sugio, Ryuji Izumoto, Kazuma Nakazawa
  • Publication number: 20070102087
    Abstract: A manufacturing method for annular run-flat tire support which has a supporting part and a leg part, and which, at the time of run-flat running, is capable of carrying load, comprises the steps of supplying said supporting part and said leg part, applying a bonding agent including a chemical conversion treatment to the bonding region of the radial-direction inside end part of said supporting part that is provided for bonding to said leg part, and bonding between said radial-direction inside end part and said leg part. Thereby, a manufacturing method for run-flat tire support which maintains a high bondability between the supporting part and the leg part, and is excellent in durability, and a run-flat tire support are provided.
    Type: Application
    Filed: November 25, 2004
    Publication date: May 10, 2007
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi Iwasaki, Kazuma Nakazawa, Humitaka Ino, Yoshikatsu Hatakeyama, Shintaro Hayashi
  • Publication number: 20070084538
    Abstract: A production method for a supporting member without a joint, a supporting member without a joint, and a pneumatic run flat tire comprising the supporting member are obtained. The shell without a joint can be obtained by shaping a cylindrical member having a bottom part out of a metal plate by the deep drawing process, removing an opening part side and the bottom part side of the cylindrical member, and curving the cylindrical member into a shape comprising a convex part at the axial direction middle part of the cylindrical member projecting to the outside in the radial direction.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 19, 2007
    Inventors: Kazuma Nakazawa, Daisuke Sugio, Humitaka Ino, Ryuji Izumoto, Shinichi Iwasaki, Narukuni Hirata
  • Publication number: 20060196589
    Abstract: The purpose of the present invention is to provide a support, a support manufacturing method, and a pneumatic run-flat tire by which predetermined strength is ensured while lightening is achieved. An aluminum tube 54 is electromagnetically formed and a support (supporting portion) is manufactured. Due to this, process hardening can be avoided and it can be formed in the desired shape. Further, at this time, due to exhaust holes 64 provided in the metal molds 52A, 52B, discharging of the air intervening between the metal molds 52A, 52B and the aluminum tube 54 at the time of forming is performed, and the support can be formed with good precision. The support 16 having the shell 26 made from an aluminum alloy formed in this manner is formed in a predetermined shape with good precision while being sufficiently lightened, and if a run-flat tire including this support 16 is installed on a vehicle, the gas mileage and handling of the vehicle can be improved.
    Type: Application
    Filed: September 17, 2003
    Publication date: September 7, 2006
    Applicant: Bridgestone Corporation
    Inventors: Ryuji Izumoto, Kazuma Nakazawa, Fumitaka Ino, Narukuni Hirata
  • Publication number: 20060142420
    Abstract: The present invention is directed to provide a puncture-sealant that can maintain high sealing ability and is excellent in practicality. The invention is a puncture-sealant for sealing a hole in a punctured tire, the puncture-sealant including: (1) at least one type of rubber latex selected from the group consisting of SBR latex, NBR latex, carboxyl-modified SBR latex and carboxyl-modified NBR latex; (2) an antifreezing agent; and (3) at least one of a short fiber or a resin adhesive that is compatible with the rubber latex.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 29, 2006
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kazuma Nakazawa, Hideshi Yanagi, Ryuji Izumoto, Shinichi Iwasaki
  • Publication number: 20040131895
    Abstract: The present invention provides a process for forming an antifouling coating containing a photocatalyst and amorphous titanium peroxide with substantially no photocatalytic capability provided on a treatment face of a substrate having a surface made of a plastic or a rubber, including a step of performing dry treatment for introducing a hydrophilic group to the treatment face of the substrate, and a step of forming the antifouling coating by applying an aqueous coating agent containing the photocatalyst and the amorphous titanium peroxide with substantially no photocatalytic capability to the treatment face of the substrate after the dry treatment. It is preferable that the above-mentioned dry treatment is a plasma discharge treatment, corona discharge treatment or ultraviolet irradiation treatment. The present invention also provides an antifouling material having an antifouling coating formed by the process for forming an antifouling coating of the present invention.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 8, 2004
    Inventors: Narukuni Hirata, Kazuma Nakazawa, Ryuji Izumoto, Shinichi Iwasaki, Daisuke Sugio, Fumitaka Ino
  • Patent number: 5578670
    Abstract: A magnetic powder for bonded magnets is obtained by subjecting starting magnetic particles to agitation in a high speed air stream whereby individual particles are mechanically impacted with one another by the action of the stream. A magnetic composition comprising the magnetic powder and a resin binder is also described wherein the magnetic powder can be highly packed in the resin binder to ensure good fluidity of the composition. The magnetic composition can be prepared by mixing magnetic particles and a resin binder powder, subjecting the mixture to agitation in a high speed air stream for impactness of the particles and heading the mixture or by subjecting magnetic particles to agitation in a high speed air stream, mixing the agitated particles with a powder of a resin binder and heading the resultant mixture.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: November 26, 1996
    Assignee: Bridgestone Corporation
    Inventors: Kazuma Nakazawa, Munehiko Kato, Toshikazu Shinogaya