Patents by Inventor Yuya Ichikawa

Yuya 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: 11933259
    Abstract: An ignition timing controller includes a storage and a processor configured or programmed to function as an ignition timing control section and a knocking determining section. The storage stores at least one of a first ignition timing map associated with a first fuel or a second ignition timing map associated with a second fuel more likely to cause knocking of an internal combustion engine than the first fuel. The ignition timing control section controls the ignition timing based on the first ignition timing map by executing a timing retardation based on the first ignition timing map when it is determined that knocking of the internal combustion engine has occurred. The ignition timing control section controls the ignition timing of the internal combustion engine based on the second ignition timing map by executing a timing advancement correction based on the second ignition timing map when it is determined that the knocking of the internal combustion engine has not occurred.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: March 19, 2024
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Shintaro Aoyagi, Yuya Ichikawa
  • Publication number: 20230296072
    Abstract: An ignition timing controller includes a storage and a processor configured or programmed to function as an ignition timing control section and a knocking determining section. The storage stores at least one of a first ignition timing map associated with a first fuel or a second ignition timing map associated with a second fuel more likely to cause knocking of an internal combustion engine than the first fuel. The ignition timing control section controls the ignition timing based on the first ignition timing map by executing a timing retardation based on the first ignition timing map when it is determined that knocking of the internal combustion engine has occurred. The ignition timing control section controls the ignition timing of the internal combustion engine based on the second ignition timing map by executing a timing advancement correction based on the second ignition timing map when it is determined that the knocking of the internal combustion engine has not occurred.
    Type: Application
    Filed: March 14, 2023
    Publication date: September 21, 2023
    Inventors: Shintaro AOYAGI, Yuya ICHIKAWA
  • Patent number: 9297670
    Abstract: A steering angle sensor comprising an annular drive gear, which rotates in accompaniment with rotation of a steering wheel, and further comprising a first driven gear and a second driven gear, which have magnets disposed therein and rotate in a driven manner in accordance with rotation of the annular drive gear, the steering angle sensor generating angle-of-rotation information of the steering wheel utilizing changes in magnetic fields based on rotation of the first driven gear and the second driven gear, wherein an intermediate gear that meshes with the annular drive gear, the first driven gear, and the second driven gear is interposed between the annular drive gear and the first driven gear and the second driven gear.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 29, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Takeshi Ishimasa, Masaya Eto, Yuya Ichikawa
  • Publication number: 20140210457
    Abstract: There is provided a steering angle sensor in which the effect of errors in angles of rotation arising in a first driven gear and a second driven gear because of the roundness of an annular drive gear is reduced and which can generate angle-of-rotation information of a steering wheel with good precision.
    Type: Application
    Filed: July 10, 2012
    Publication date: July 31, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Takeshi Ishimasa, Masaya Eto, Yuya Ichikawa
  • Patent number: 7107114
    Abstract: A manufacturing system has an inspection data collecting apparatus that is capable of carrying out, upon receipt of a signal containing measurement data in different formats according to the type of inspection or a measuring instrument, processing in accordance with the signal and the format of data to create data in a certain format, and of transmitting a signal for giving an instruction to the measuring instrument in association with the format compatible with the measuring instrument. All data obtained by the inspections in all steps for manufacturing a product is accumulate as inspection data and exchanged among the steps.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: September 12, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Yoshifumi Yoshida, Koichi Kojima, Yuya Ichikawa, Atsushi Harai, Hideo Torii
  • Patent number: 6978219
    Abstract: A measurement data collection apparatus includes at least a collection/analysis processing device having a measuring instrument interface for converting measurement data input from a measuring instrument into data of a form corresponding to measurement contents, and a measurement data collection interface for converting the data of the form corresponding to the measurement contents into measurement data of a predetermined form. The apparatus can process the results obtained from the measurement as electronic data irrespective of the measurement contents or a kind of the measuring instrument and can perform form printing or data processing such as arithmetic operations.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: December 20, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Koichi Kojima, Yoshifumi Yoshida, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Publication number: 20050192695
    Abstract: A manufacturing system has an inspection data collecting apparatus that is capable of carrying out, upon receipt of a signal containing measurement data in different formats according to the type of inspection or a measuring instrument, processing in accordance with the signal and the format of data to create data in a certain format, and of transmitting a signal for giving an instruction to the measuring instrument in association with the format compatible with the measuring instrument. All data obtained by the inspections in all steps for manufacturing a product is accumulate as inspection data and exchanged among the steps.
    Type: Application
    Filed: April 25, 2005
    Publication date: September 1, 2005
    Inventors: Yoshifumi Yoshida, Koichi Kojima, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Patent number: 6934596
    Abstract: A manufacturing system has an inspection data collecting apparatus that is capable of carrying out, upon receipt of a signal containing measurement data in different formats according to the type of inspection or a measuring instrument, processing in accordance with the signal and the format of data to create data in a certain format, and of transmitting a signal for giving an instruction to the measuring instrument in association with the format compatible with the measuring instrument. All data obtained by the inspections in all steps for manufacturing a product is accumulated as inspection data and exchanged among the steps.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: August 23, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Yoshifumi Yoshida, Koichi Kojima, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Publication number: 20050182580
    Abstract: A measurement data collection apparatus includes at least a collection/analysis processing device having a measuring instrument interface for converting measurement data input from a measuring instrument into data of a form corresponding to measurement contents, and a measurement data collection interface for converting the data of the form corresponding to the measurement contents into measurement data of a predetermined form. The apparatus can process the results obtained from the measurement as electronic data irrespective of the measurement contents or a kind of the measuring instrument and can perform form printing or data processing such as arithmetic operations.
    Type: Application
    Filed: April 5, 2005
    Publication date: August 18, 2005
    Inventors: Koichi Kojima, Yoshifumi Yoshida, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Patent number: 6892158
    Abstract: A measurement data collection apparatus includes at least a collection/analysis processing device having a measuring instrument interface for converting measurement data input from a measuring instrument into data of a form corresponding to measurement contents, and a measurement data collection interface for converting the data of the form corresponding to the measurement contents into measurement data of a predetermined form. The apparatus can process the results obtained from the measurement as electronic data irrespective of the measurement contents or a kind of the measuring instrument and can perform form printing or data processing such as arithmetic operations.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: May 10, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Koichi Kojima, Yoshifumi Yoshida, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Publication number: 20030176990
    Abstract: A measurement data collection apparatus includes at least a collection/analysis processing device having a measuring instrument interface for converting measurement data input from a measuring instrument into data of a form corresponding to measurement contents, and a measurement data collection interface for converting the data of the form corresponding to the measurement contents into measurement data of a predetermined form. The apparatus can process the results obtained from the measurement as electronic data irrespective of the measurement contents or a kind of the measuring instrument and can perform form printing or data processing such as arithmetic operations.
    Type: Application
    Filed: November 1, 2002
    Publication date: September 18, 2003
    Inventors: Koichi Kojima, Yoshifumi Yoshida, Yuya Ichikawa, Atsushi Hirai, Hideo Torii
  • Publication number: 20030176939
    Abstract: A manufacturing system has an inspection data collecting apparatus that is capable of carrying out, upon receipt of a signal containing measurement data in different formats according to the type of inspection or a measuring instrument, processing in accordance with the signal and the format of data to create data in a certain format, and of transmitting a signal for giving an instruction to the measuring instrument in association with the format compatible with the measuring instrument. All data obtained by the inspections in all steps for manufacturing a product is accumulated as inspection data and exchanged among the steps.
    Type: Application
    Filed: January 14, 2003
    Publication date: September 18, 2003
    Inventors: Yoshifumi Yoshida, Koichi Kojima, Yuya Ichikawa, Atsushi Hirai, Hideo Torii