Patents by Inventor Kazuki Yoshikawa

Kazuki Yoshikawa 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).

  • Publication number: 20240093769
    Abstract: A vehicle control apparatus is to be applied to a vehicle including a torque converter and an engine. The vehicle control apparatus includes a turbine hub, a lock-up piston, a damper mechanism, and a control system. The damper mechanism permits relative rotation between a hub of the turbine hub and a cylindrical part of the lock-up piston. The control system controls the engine. The control system calculates, with the lock-up piston engaged with a crankshaft of the engine, a PV value that is a product of a sliding surface pressure and a sliding speed between the hub and the cylindrical part. When the PV value is greater than a threshold, the control system changes an engine torque more gradually than when the PV value is equal to or less than the threshold. The engine torque is an output torque of the crankshaft.
    Type: Application
    Filed: August 17, 2023
    Publication date: March 21, 2024
    Inventors: Yuuki SUZUKI, Tomoka YOSHIKAWA, Kazuki KODAIRA, Satoru KUDO, Hiroki SENDA
  • Patent number: 10289099
    Abstract: An operation order system includes a management apparatus that manages processing executed by a plurality of processing machines and operations performed on the processing machines by operators and that determines a next operation for each operator based on an operation state of the operator, and portable terminal that can be carried by the operator and via which the operator can input the operation state of the operator so that the portable terminal transmits the input operation state to the management apparatus through wireless communication, the portable terminal receives the next operation from the management apparatus through wireless communication and displays the received next operation. The portable terminal receives, as the operation state, operation start information or operation completion information input from the operator indicating that the operator has started or completed the operation at a home position in a facility.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: May 14, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuji Yamaguchi, Kazuki Yoshikawa, Tomoyuki Nakagawa, Toshio Aono
  • Patent number: 9956723
    Abstract: Provided is a joint treatment method that enables smooth joint treatment without damaging the ultraviolet radiation curable resin formed on the interior sheet surface. The joint treatment method is for joining a butt joint portion of interior sheets, the protective layer being formed as a surface layer of each of the interior sheets. The method includes: (1) a step of injecting a joint treatment agent, which has no dissolving ability with respect to at least the protective layer, into the butt joint portion; and (2) a step of attaching, before the injected joint treatment agent is cured, an adhesive tape so as to straddle the butt joint portion such that the tape is in contact with the protective layer and the joint treatment agent present in the butt joint portion.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 1, 2018
    Assignee: TOLI CORPORATION
    Inventors: Atsushi Kodera, Shinichi Kotani, Hidenori Wada, Kazuki Yoshikawa, Masaaki Inuma
  • Publication number: 20170308065
    Abstract: An operation order system includes a management apparatus that manages processing executed by a plurality of processing machines and operations performed on the processing machines by operators and that determines a next operation for each operator based on an operation state of the operator, and portable terminal that can be carried by the operator and via which the operator can input the operation state of the operator so that the portable terminal transmits the input operation state to the management apparatus through wireless communication, the portable terminal receives the next operation from the management apparatus through wireless communication and displays the received next operation. The portable terminal receives, as the operation state, operation start information or operation completion information input from the operator indicating that the operator has started or completed the operation at a home position in a facility.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Applicant: JTEKT CORPORATION
    Inventors: Yuji YAMAGUCHI, Kazuki YOSHIKAWA, Tomoyuki NAKAGAWA, Toshio AONO
  • Publication number: 20170157840
    Abstract: Provided is a joint treatment method that enables smooth joint treatment without damaging the ultraviolet radiation curable resin formed on the interior sheet surface. The joint treatment method is for joining a butt joint portion of interior sheets, the protective layer being formed as a surface layer of each of the interior sheets. The method includes: (1) a step of injecting a joint treatment agent, which has no dissolving ability with respect to at least the protective layer, into the butt joint portion; and (2) a step of attaching, before the injected joint treatment agent is cured, an adhesive tape so as to straddle the butt joint portion such that the tape is in contact with the protective layer and the joint treatment agent present in the butt joint portion.
    Type: Application
    Filed: October 19, 2016
    Publication date: June 8, 2017
    Inventors: Atsushi Kodera, Shinichi Kotani, Hidenori Wada, Kazuki Yoshikawa, Masaaki Inuma
  • Patent number: 9139915
    Abstract: A solution for removing an aluminum oxide film from an aluminum or aluminum alloy surface, which includes a salt or oxide of a metal capable of substituting aluminum, a solubilizing agent for ions of the metal, and an alkali, and which has a pH of 10 to 13.5. The removing solution makes it possible to form a film of the metal derived from the metal salt or oxide contained in the removing solution by dissolving away the oxide film from the aluminum or aluminum alloy surface at a low temperature and a high speed while restraining, as securely as possible, erosion of the aluminum or aluminum alloy surface. The removing solution ensures that even in the case where the thickness of the aluminum or aluminum alloy basis material is very small, the aluminum or aluminum alloy surface can be activated while assuredly leaving the aluminum or aluminum alloy basis material.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: September 22, 2015
    Assignee: C. Uyemura & Co., Ltd.
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Patent number: 8414711
    Abstract: A workpiece including aluminum or an aluminum alloy on a surface thereof is subjected to surface treatment including the steps of immersing in an acidic or alkaline aluminum oxide film-removing solution containing a salt or oxide of a metal capable of substitution with aluminum and forming a substituted metal layer and contained in the removing solution on a surface of the aluminum or aluminum alloy while removing an aluminum oxide film on aluminum or aluminum alloy surface, forming a substituted zinc film by zinc substitution treatment without removing the substituted metal layer, removing the substituted metal layer and substituted zinc film with an oxidizing liquid, and subjecting again to zinc substitution treatment, forming a substituted zinc film.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: April 9, 2013
    Assignee: C. Uyemura & Co., Ltd.
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Publication number: 20120058276
    Abstract: There is disclosed a processing solution for metal replacement for metal aluminum or an aluminum alloy. The processing solution is used for surface processing of an underlying aluminum material. The processing solution for metal replacement removes an oxide film on the underlying aluminum material and suppresses corrosive attack to it to allow a plating film having high smoothness and good plating appearance to be deposited on the underlying aluminum material. The processing solution for metal replacement at least includes a metal salt capable of being replaced with aluminum, and an alkaline compound. A quaternary ammonium hydroxide is contained in the processing solution for metal replacement as the alkaline compound.
    Type: Application
    Filed: November 15, 2011
    Publication date: March 8, 2012
    Applicant: C. UYEMURA & CO., LTD.
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Publication number: 20110268885
    Abstract: A solution for removing an aluminum oxide film from an aluminum or aluminum alloy surface, which includes a salt or oxide of a metal capable of substituting aluminum, a solubilizing agent for ions of the metal, and an alkali, and which has a pH of 10 to 13.5. The removing solution makes it possible to form a film of the metal derived from the metal salt or oxide contained in the removing solution by dissolving away the oxide film from the aluminum or aluminum alloy surface at a low temperature and a high speed while restraining, as securely as possible, erosion of the aluminum or aluminum alloy surface. Besides, the removing solution ensures that even in the case where the thickness of the aluminum or aluminum alloy basis material is very small, the aluminum or aluminum alloy surface can be activated while assuredly leaving the aluminum or aluminum alloy basis material.
    Type: Application
    Filed: July 18, 2011
    Publication date: November 3, 2011
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Publication number: 20100044341
    Abstract: A workpiece to be treated including aluminum or an aluminum alloy on at least a surface thereof is subjected to surface treatment by a method including the steps of immersing in an acidic or alkaline aluminum oxide film-removing solution containing a salt or oxide of a metal capable of substitution with aluminum and forming a substituted metal layer of the metal which is capable of substitution with aluminum and is contained in the removing solution on a surface of the aluminum or aluminum alloy while removing an aluminum oxide film on said aluminum or aluminum alloy surface, forming a substituted zinc film by zinc substitution treatment without removal of the substituted metal layer, removing the substituted metal layer along with the substituted zinc film by means of a liquid having an oxidizing behavior, and subjecting again to zinc substitution treatment to form a substituted zinc film.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Hiroki UCHIDA, Kazuki YOSHIKAWA, Toshiaki SHIBATA
  • Publication number: 20090133782
    Abstract: There is disclosed a processing solution for metal replacement for metal aluminum or an aluminum alloy. The processing solution is used for surface processing of an underlying aluminum material. The processing solution for metal replacement removes an oxide film on the underlying aluminum material and suppresses corrosive attack to it to allow a plating film having high smoothness and good plating appearance to be deposited on the underlying aluminum material. The processing solution for metal replacement at least includes a metal salt capable of being replaced with aluminum, and an alkaline compound. A quaternary ammonium hydroxide is contained in the processing solution for metal replacement as the alkaline compound.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 28, 2009
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Patent number: 7507587
    Abstract: An automatic analysis and control system for electroless composite plating solution for automatically analyzing an electroless composite plating solution and performing such a control as to obtain an appropriate bath composition and/or use conditions, wherein, as a technique for measuring the concentration of a metallic component in the plating solution by absorptiometry, the system includes a mechanism for measuring transmissivity or absorbance at least two or more different wavelengths after the plating solution is automatically introduced into an analytical cell, and a mechanism for calculating the objective concentration from the measured values and displaying the calculation results.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: March 24, 2009
    Assignee: C.Uyemura Co., Ltd.
    Inventors: Tadashi Chiba, Koji Monden, Kazuki Yoshikawa, Shinji Tachibana
  • Publication number: 20080169267
    Abstract: A solution for removing an aluminum oxide film from an aluminum or aluminum alloy surface, which includes a salt or oxide of a metal capable of substituting aluminum, a solubilizing agent for ions of the metal, and an alkali, and which has a pH Of 10 to 13.5. The removing solution makes it possible to form a film of the metal derived from the metal salt or oxide contained in the removing solution by dissolving away the oxide film from the aluminum or aluminum alloy surface at a low temperature and a high speed while restraining, as securely as possible, erosion of the aluminum or aluminum alloy surface. Besides, the removing solution ensures that even in the case where the thickness of the aluminum or aluminum alloy basis material is very small, the aluminum or aluminum alloy surface can be activated while assuredly leaving the aluminum or aluminum alloy basis material.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 17, 2008
    Applicant: C. Uyemura & Co., Ltd.
    Inventors: Hiroki Uchida, Kazuki Yoshikawa, Toshiaki Shibata
  • Publication number: 20060078465
    Abstract: An automatic analysis and control system for electroless composite plating solution for automatically analyzing an electroless composite plating solution and performing such a control as to obtain an appropriate bath composition and/or use conditions, wherein, as a technique for measuring the concentration of a metallic component in the plating solution by absorptiometry, the system includes a mechanism for measuring transmissivity or absorbance at least two or more different wavelengths after the plating solution is automatically introduced into an analytical cell, and a mechanism for calculating the objective concentration from the measured values and displaying the calculation results.
    Type: Application
    Filed: November 28, 2005
    Publication date: April 13, 2006
    Inventors: Tadashi Chiba, Koji Monden, Kazuki Yoshikawa, Shinji Tachibana
  • Publication number: 20030049169
    Abstract: An automatic analysis and control system for electroless composite plating solution for automatically analyzing an electroless composite plating solution and performing such a control as to obtain an appropriate bath composition and/or use conditions, wherein, as a technique for measuring the concentration of a metallic component in the plating solution by absorptiometry, the system includes a mechanism for measuring transmissivity or absorbance at least two or more different wavelengths after the plating solution is automatically introduced into an analytical cell, and a mechanism for calculating the objective concentration from the measured values and displaying the calculation results.
    Type: Application
    Filed: January 22, 2002
    Publication date: March 13, 2003
    Inventors: Tadashi Chiba, Koji Monden, Kazuki Yoshikawa, Shinji Tachibana