Patents by Inventor Yuichi Murakami

Yuichi Murakami 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: 20190218640
    Abstract: Disclosed is a high-strength sheet including: C: 0.15% to 0.35% by mass, total of Si and Al: 0.5% to 3.0% by mass, Mn: 1.0% to 4.0% by mass, P: 0.05% by mass or less, and S: 0.01% by mass or less, with the balance being Fe and inevitable impurities, wherein the steel structure satisfies that: a ferrite fraction is 5% or less, the total fraction of tempered martensite and tempered bainite is 60% or more, the amount of retained austenite is 10% or more, MA has an average size of 1.0 ?m or less, retained austenite has an average size of 1.0 ?m or less, retained austenite having a size of 1.5 ?m or more accounts for 2% or more of the total amount of retained austenite, and a scattering intensity at the q value of 1 nm?1 in X-ray small angle scattering is 1.0 cm1 or less.
    Type: Application
    Filed: July 21, 2017
    Publication date: July 18, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Elijah KAKIUCHI, Toshio MURAKAMI, Shigeo OTANI, Yuichi FUTAMURA, Tadao MURATA
  • Patent number: 10348141
    Abstract: A motor of this invention comprises a rotor having a permanent magnet, the number of which magnet poles is P, and a stator including M pcs of teeth, the teeth arranged in a circumferential direction in a manner to face the permanent magnet through a spatial gap, wherein the stator includes stator core having the number M of the teeth, and a winding wire wound about each of the tooth, wherein the number P of the magnet poles and the number M of the teeth have a relation defined by formulae (2/3)M<P<(4/3)M, and M?P, and wherein ratio (t1/Ds) of teeth tip width t1 to stator inside diameter Ds is given by a formula 0.18<(t1/Ds)<0.25.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: July 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hu Li, Yuichi Yoshikawa, Hiroshi Murakami, Haruhiko Kado, Kiyomi Kawamura
  • Publication number: 20190199241
    Abstract: A resonant inverter includes: an input capacitor; an inverter; a snubber circuit; a transformer having a primary winding connected to an AC end of the inverter; a resonant coil, a resonant capacitor, and a current sensor on the secondary winding side of the transformer; and a control unit, wherein, on the basis of current detected by the current sensor, the control unit controls switching elements so as to perform zero voltage switching at the time of turning-on, at a frequency at which a load including the resonant coil and the resonant capacitor becomes capacitive, and performs power regeneration of energy stored in a snubber capacitor to a DC voltage source.
    Type: Application
    Filed: February 28, 2017
    Publication date: June 27, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoshi MURAKAMI, Ryosuke KOBAYASHI, Akira NAKAGAWA, Kimihiko TANAYA, Yusuke NARUSE, Yuichi MURAMOTO
  • Publication number: 20190185958
    Abstract: Disclosed is a high-strength sheet including: C: 0.15% by mass to 0.35% by mass, total of Si and Al: 0.5% by mass to 3.0% by mass, Mn: 1.0% by mass to 4.0% by mass, P: 0.05% by mass or less, and S: 0.01% by mass or less, with the balance being Fe and inevitable impurities, wherein the steel structure satisfies that: a ferrite fraction is 5% or less, the total fraction of tempered martensite and tempered bainite is 60% or more, the amount of retained austenite is 10% or more, MA has an average size of 1.0 ?m or less, a half-width of the concentration distribution of Mn in the carbon-concentrated region that is equal to the amount of retained austenite is 0.3% by mass or more, and a scattering intensity at the q value of 1 nm?1 in X-ray small angle scattering is 1.0 cm?1 or less.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 20, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Elijah KAKIUCHI, Toshio MURAKAMI, Shigeo OTANI, Yuichi FUTAMURA, Tadao MURATA
  • Publication number: 20190176472
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head provided with a nozzle and a cap that executes capping for forming a first space to which the nozzle is open, in a surrounding manner. The cap includes a capping member that is provided with a suction hole and an atmosphere communicating hole which is configured to allow an inside of the cap to communicate with an outside, a liquid absorber that is disposed inside the capping member, and a reception member that is disposed inside the capping member so as to form a second space between the liquid absorber and the reception member. The second space is positioned closer to a side of the liquid ejecting head than to the liquid absorber in a posture of capping, and the atmosphere communicating hole is open to the second space.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Inventors: Hiromichi NAKASHIMA, Yuichi URABE, Kentaro MURAKAMI, Shuji FUNADA, Hisashi SATO, Akihiro FURUYA
  • Patent number: 8946936
    Abstract: An electromagnetic coupling device electromagnetically connects a door handle side circuit of a door handle with a door main body side circuit of a door main body. This electromagnetic coupling device includes a door handle side coupling unit, a door main body side coupling unit, a door handle side coupling unit, a handle side support unit that supports the door handle, and a connector body that supports the door main body side coupling unit in a vehicle door main body. The door handle side coupling unit is electromagnetically coupled with the door main body side coupling unit without making contact therewith. At least one of the handle side support unit and the connector body restricts the relative movement, caused by rotation of the door handle, of the door handle side coupling unit and the door main body side coupling unit.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: February 3, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Hiroki Okada, Kiyokazu Ieda, Yuichi Murakami
  • Patent number: 8630772
    Abstract: An occupant protection system for vehicle, includes an own-vehicle information acquisition unit acquiring an own-vehicle information including a route information on a course of an own vehicle to a destination, an other-vehicle information acquisition unit acquiring other-vehicle information that is received through vehicle-to-vehicle communication and that includes position information of another vehicle, a crash condition calculation unit calculating a crash condition between the own vehicle and said another vehicle on the basis of the own-vehicle information and other-vehicle information, and an operation preparation unit preparing a system which corresponds to a crash damage decreasing system decreasing a level of a crash damage of an occupant of the own vehicle, and which is adapted to decrease the level of the crash damage that corresponds to the crash condition calculated by the crash condition calculation unit to operate.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: January 14, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami
  • Patent number: 8373577
    Abstract: A vehicle-mounted communication device includes a non-directional antenna provided at a vehicle and having a directional characteristic in all directions uniformly in a horizontal plane, at least one of directional antennas provided at the vehicle and having a directional characteristic in a specific direction, an antenna switching portion switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be sent in a case where the information is sent from the vehicle and switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be received in a case where the information transmitted through the air is received.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 12, 2013
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Shingo Fujimoto
  • Publication number: 20120217764
    Abstract: A multi-function camera system comprises a camera fixed to a vehicle component on a side of a vehicle for photographing a side area of the vehicle; a condition determination unit for determining execution conditions of a plurality of function units; an obstacle detection unit to function based on a determination result from the condition determination unit for detecting, through image recognition, an obstacle present in the vicinity of the vehicle or approaching the vehicle based on a captured image of the camera; and an individual authentication unit to function based on the determination result from the condition determination unit for ascertaining, through the image recognition, whether or not a person having reached the vehicle matches with a user who has been registered at the vehicle beforehand based on the captured image of the camera.
    Type: Application
    Filed: October 20, 2010
    Publication date: August 30, 2012
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hiroshi Ishiguro, Yuichi Murakami, Koichi Hirota
  • Patent number: 8155242
    Abstract: A frequency shift keying digital signal receiving apparatus includes a detecting portion detecting a new signal on the basis of a signal, from which a correlated ambient noise is filtered out by an adaptive filter, a holding portion holding a first electric power for the signal received before a new signal is detected, a calculating portion calculating a second electric power for the signal received after the new signal is detected, a comparing portion comparing levels of the first and second electric powers, a selector selecting the signal, from which the correlated ambient noise is filtered out, when the first electric power is higher than the second electric power and selecting the signal bypassing the adaptive filter when the first electric power is lower than the second electric power, and a demodulating portion demodulating a desired signal on the basis of the signal selected by the selecting portion.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 10, 2012
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiro Yamamoto, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Patent number: 8125336
    Abstract: An abnormality detecting apparatus includes a power supply portion applying a voltage to electrodes provided at both surfaces of a light control glass adapted to be provided at a vehicle to change a transparency of the light control glass, a detection portion detecting a detectable amount obtained on the basis of the voltage applied to the electrodes, and an abnormality determination portion determining whether or not an abnormality occurs to the light control glass based on a predetermined detectable amount and the detectable amount detected by the detection portion.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 28, 2012
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Hiroki Okada
  • Patent number: 8050364
    Abstract: A digital signal receiving apparatus includes: detection-judging portion judging a possible presence of a desired signal when a signal level of a smoothed signal is greater than a reference level; wherein said first smoothed signal and said second smoothed signal are compared in order to generate a detection signal representing a judgment of a possible presence of a desired signal, said second smoothed signal having a convergence speed slower than that of the first smoothing filter, a filter controlling portion switching an adaptive filter from an adaptive mode to a non-adaptive mode when the detection-judging portion judges the possible presence of the desired signal and switching from the non-adaptive mode to the adaptive mode when the detection-judging portion judges the absence of the desired signal; a limiting portion limiting a signal level of an auto-correlation signal to the signal level of the smoothed signal; and a demodulating portion demodulating the auto-correlation signal having the signal level
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: November 1, 2011
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiro Yamamoto, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Patent number: 8050370
    Abstract: A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: November 1, 2011
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiro Yamamoto, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Publication number: 20110260831
    Abstract: Provided is a door handle for a vehicle that can eliminate wiring between a circuit mounted on a vehicle including a door panel having the vehicle door handle and a circuit mounted within this door handle, so that the door handle can be provided as an independent unit. The door handle for a vehicle, is configured to authenticate a mobile device carried by a user through wireless communication between this mobile device and the vehicle and to control locking/unlocking of a vehicle door based on detection of presence/absence of an operation by the user of commanding a predetermined locking/unlocking operation.
    Type: Application
    Filed: December 24, 2009
    Publication date: October 27, 2011
    Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Hiroki Okada
  • Publication number: 20110140479
    Abstract: A technique for realizing effective transmission between a door handle and a vehicle door is provided. The present invention teaches an electromagnetic coupling device electromagnetically connecting a door handle side circuit 110 of a door handle 100 with a door main body side circuit 210 of a door main body. This electromagnetic coupling device comprises a door handle side coupling unit 119, a door main body side coupling unit 161, a door handle side coupling unit 119, a handle side support unit 139 that supports the door handle 100, and a connector body 169 that supports the door main body side coupling unit 161 in a vehicle door main body 200. The door handle side coupling unit 119 is electromagnetically coupled with the door main body side coupling unit 161 without making contact therewith.
    Type: Application
    Filed: June 11, 2009
    Publication date: June 16, 2011
    Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Hiroki Okada, Kiyokazu Ieda, Yuichi Murakami
  • Publication number: 20110068949
    Abstract: A vehicle-mounted communication device includes a non-directional antenna provided at a vehicle and having a directional characteristic in all directions uniformly in a horizontal plane, at least one of directional antennas provided at the vehicle and having a directional characteristic in a specific direction, an antenna switching portion switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be sent in a case where the information is sent from the vehicle and switching so as to be connected to one of the non-directional antenna and the directional antenna on the basis of information to be received in a case where the information transmitted through the air is received.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Shingo Fujimoto
  • Publication number: 20110035116
    Abstract: An occupant protection system for vehicle, includes an own-vehicle information acquisition unit acquiring an own-vehicle information including a route information on a course of an own vehicle to a destination, an other-vehicle information acquisition unit acquiring other-vehicle information that is received through vehicle-to-vehicle communication and that includes position information of another vehicle, a crash condition calculation unit calculating a crash condition between the own vehicle and said another vehicle on the basis of the own-vehicle information and other-vehicle information, and an operation preparation unit preparing a system which corresponds to a crash damage decreasing system decreasing a level of a crash damage of an occupant of the own vehicle, and which is adapted to decrease the level of the crash damage that corresponds to the crash condition calculated by the crash condition calculation unit to operate.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 10, 2011
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kiyokazu Ieda, Yuichi Murakami
  • Patent number: 7751664
    Abstract: A door handle apparatus for a vehicle, opening and closing a vehicle door, the door handle apparatus includes an informing portion for visually informing a state of the vehicle door, including a locking/unlocking state thereof, to a user by a decorative light, which is a visible light, an operation detecting portion for optically detecting an active-direct operation to the door handle apparatus by the user based on changes in an detection light, and an optical waveguide for transmitting the decorative light and the detection light, which is inputted from a first end portion of the optical waveguide, to a second end portion of the optical waveguide, the optical waveguide functioning as the informing portion by leaking the decorative light on a transmission path so as to be outwardly emitted and as the operation detecting portion by outputting the detection light from the second end portion of the optical waveguide.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: July 6, 2010
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Hiroki Okada
  • Patent number: 7729449
    Abstract: A DSP tuner, which is equipped with an A/D converter and a digital signal processing part, is provided to the receiving parts of an in-vehicle equipment and a portable equipment that constitute an in-vehicle equipment remote control system. The A/D converter quantizes analog input signals received by receiving antennas and converts them into digital values. The digital signal processing part always appears, and removes as a noise a frequency band of which spectrum hardly change within a predetermined time period. Moreover, the digital signal processing part sets a frequency band with a comparatively large spectrum change as an FSK modulation signal corresponding to code contents, and outputs binary data corresponding to the frequency band as a code signal.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: June 1, 2010
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Hiroki Okada, Yuichi Murakami
  • Publication number: 20090279826
    Abstract: A door handle apparatus for a vehicle, opening and closing a vehicle door, the door handle apparatus includes an informing portion for visually informing a state of the vehicle door, including a locking/unlocking state thereof, to a user by a decorative light, which is a visible light, an operation detecting portion for optically detecting an active-direct operation to the door handle apparatus by the user based on changes in an detection light, and an optical waveguide for transmitting the decorative light and the detection light, which is inputted from a first end portion of the optical waveguide, to a second end portion of the optical waveguide, the optical waveguide functioning as the informing portion by leaking the decorative light on a transmission path so as to be outwardly emitted and as the operation detecting portion by outputting the detection light from the second end portion of the optical waveguide.
    Type: Application
    Filed: March 26, 2009
    Publication date: November 12, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kiyokazu Ieda, Yuichi Murakami, Hiroki Okada