Patents by Inventor Akira Ichikawa

Akira Ichikawa 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: 7363804
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: April 29, 2008
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Publication number: 20070033998
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: October 17, 2006
    Publication date: February 15, 2007
    Applicant: DENSO CORPORATION
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Patent number: 7137295
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: November 21, 2006
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Publication number: 20060212283
    Abstract: Automated design means 72 performs automated design based on design requirement particulars and designer discretion particulars inputted from design requirement particular input means 1 and designer discretion particular input means 2 and design rules called from a design rule database 4 by design rule database calling means 71. Determination means 74 automatically determines whether a design result of the automated design by the automated design means 72 is good or not based on determination rules called from a determination rule database 6 by determination rule database calling means 73. The determination rules from the determination rule database 6 include rules to be satisfied by design of a product in the case of manufacturing the product.
    Type: Application
    Filed: January 25, 2005
    Publication date: September 21, 2006
    Inventors: Akira Ichikawa, Masaki Ikeda, Shinichi Yanagishita
  • Patent number: 7047799
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: May 23, 2006
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Patent number: 7024926
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: April 11, 2006
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Patent number: 7010967
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: March 14, 2006
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Patent number: 6957570
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: October 25, 2005
    Assignee: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Publication number: 20050228577
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: June 7, 2005
    Publication date: October 13, 2005
    Applicant: DENSO CORPORATION
    Inventors: Keijl Wakahara, Akira Ichikawa
  • Patent number: 6898927
    Abstract: An emission control system has a catalyst and a sensor responding to a component of exhaust gas. In order to speed warming up the catalyst, the emission control system increases the amount of heat dissipated by exhaust gas. A diagnosis of the emission control system is carried out by determining whether the amount of heat dissipated by exhaust gas is sufficient or insufficient. The amount of heat dissipated by exhaust gas is represented by the length of time to an activated state of the sensor. In the diagnosis, the amount of heat generated by a heater provided in the sensor is taken into consideration.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: May 31, 2005
    Assignee: Denso Corporation
    Inventors: Syujiro Morinaga, Hisashi Iida, Yoshihiro Majima, Tatsuya Oka, Akira Ichikawa, Keiji Wakahara, Masayuki Tsutsumi, Hideyuki Maeji, Masakazu Yamada, Takanori Takahashi, Yukihiro Yamashita
  • Publication number: 20050102093
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 12, 2005
    Applicant: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Publication number: 20050097946
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 12, 2005
    Applicant: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Publication number: 20050087152
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 28, 2005
    Applicant: Denso Corporation
    Inventors: Keiji Wakahara, Akira Ichikawa
  • Patent number: 6848298
    Abstract: A fuel vapor purge system includes a fuel tank, a canister, and an evaporation route, and purges fuel vapor collected in the canister into an intake passage of an internal combustion engine. A failure diagnosis apparatus of the fuel vapor purge system includes a controller having a pressure difference applying unit for applying a pressure difference between the evaporation route and outside air. The controller also detects a level of an influence of the fuel vapor generated in the fuel tank on failure determination of the evaporation route, and detects both a pressure state obtained when the pressure difference applying unit communicates with a reference orifice communicating with the outside air and a pressure state obtained when the pressure difference applying unit communicates with the evaporation route. The failure diagnosis apparatus determines whether there is a failure in the evaporation route in view of the level of the influence by comparing the detected pressure states with each other.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: February 1, 2005
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Hideki Miyahara, Tokiji Ito, Shuichi Hanai, Akira Ichikawa, Kenji Nagasaki
  • Publication number: 20040239772
    Abstract: A digital camera data transmission stand capable of acquiring image data from a digital camera and transmitting the acquired data is proposed. Moreover, a digital camera data transmission stand, further having a function of charging the battery of a digital camera, is proposed. Moreover, the digital camera data transmission stand can be fixed on the stand regardless of the size of the digital camera. Regardless of the type of digital camera, image data can be transmitted, and the battery can be charged.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 2, 2004
    Inventors: Toshiaki Onishi, Akira Ichikawa, Katsuhiko Otomoto
  • Publication number: 20040222780
    Abstract: A temperature history displaying medium including a color forming component which includes an electron donating dye and an electron accepting compound and which achieves a colored state by the reaction of the electron donating dye and the electron accepting compound, and a color erasing component which includes a color erasing agent, wherein the color erasing agent has a function to discolor the color forming component in the colored state, wherein the discoloring is triggered upon application of at least one of dotted heat and patterned heat, and wherein a temperature history is determined depending on the discoloring state of the color forming component in the colored state. In addition, a temperature history displaying method using the medium is also provided. Further, a method for manufacturing the medium is provided.
    Type: Application
    Filed: June 7, 2004
    Publication date: November 11, 2004
    Inventors: Hiroshi Yamada, Masanaka Nagamoto, Akira Ichikawa, Nigel G. Mills
  • Patent number: 6798467
    Abstract: The present invention is designed to provide a liquid crystal display device in which a nontacky silicone sheet having rubber elasticity is so provided between a liquid crystal display panel and a transparent protection plate for protecting the liquid crystal display panel as not to form any air layer and a method for producing such a liquid crystal display device.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 28, 2004
    Assignee: Asahi Rubber Inc.
    Inventors: Masutsugu Tasaki, Akira Ichikawa
  • Publication number: 20040168510
    Abstract: A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which the thermostat is to be normally closed. When a closure-malfunction occurs, the coolant temperature becomes different considerably from that during the normal time in the temperature range in which the thermostat is to be normally opened. Alternatively, the malfunction may be detected from a difference between the engine side coolant temperature and a radiator side coolant temperature.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 2, 2004
    Applicant: DENSO CORPORATION
    Inventors: Keji Wakahara, Akira Ichikawa
  • Publication number: 20040098342
    Abstract: Electronic device products and the like are components, which constitute finished or planned and developed products in the future. Therefore, in addition to obtaining information for each component, to retrieve information from finished products is desirable.
    Type: Application
    Filed: March 31, 2003
    Publication date: May 20, 2004
    Inventors: Toshiaki Onishi, Akira Ichikawa, Akira Ichikawa, Ikuo Amino, Masahiko Isshiki, Hidekazu Tanigawa
  • Patent number: 6736918
    Abstract: A process for producing cards is provided, which can avoid exposure, on card surface, of unevennesses of components such as IC chips, capacitors and antenna coils mounted or formed on a mount substrate. This process comprises the steps of continuously feeding a mount substrate and simultaneously feeding a pair of sheet members on both surface sides of the mount substrate in such a manner that the mount substrate is interposed between the pair of sheet members; feeding an adhesive in fluid condition between each of the surfaces of the mount substrate and the sheet member opposite thereto; and regulating a distance between the pair of sheet members into a constant spacing and hardening the adhesive.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 18, 2004
    Assignee: Lintec Corporation
    Inventors: Akira Ichikawa, Kenichi Watanabe