Patents by Inventor Masahiro Asai

Masahiro Asai 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: 20210132016
    Abstract: A gas sensor includes a gas sensor element for detecting the concentration of a specific gas in a gas under measurement, a tubular housing having an opening, a sealing member closing the opening, and a heat dissipating member having a rear end located at the same position or forward of the rear end of the housing. The heat dissipating member reduces heat transferred from the forward end side of the gas sensor to the sealing member and includes a connection portion connected to the housing, and a main portion extending rearward from the connection portion such that a gap is formed between the main portion and the housing. The main portion has heat dissipating openings for establishing communication between the gap and a space on the outer circumferential side of the heat dissipating member. The heat dissipating openings are formed on the rear end side of the main portion.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Daisuke MATSUYAMA, Masahiro ASAI, Masashi NOMURA, Yuto INOSE, Takehiro Oba
  • Publication number: 20200378909
    Abstract: An X-ray analyzer includes: a specimen stage; a spectrometer having a spectroscopic element and an X-ray detector; a temperature measuring unit including at least one of a first temperature sensor for measuring a temperature of the specimen stage and a second temperature sensor for measuring a temperature of the spectrometer; a storage unit which stores calibration data of the spectrometer, and a previous measurement result by the temperature measuring unit at the time of execution of the calibration of the spectrometer; and a notifying unit which acquires a measurement result by the temperature measuring unit, calculates a temperature variation amount of the acquired measurement result with respect to the previous measurement result stored in the storage unit, and notifies that calibration is needed, based on the temperature variation amount.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Inventors: Kazunori Tsukamoto, Masahiro Asai, Shigeru Honda
  • Publication number: 20200292485
    Abstract: A gas sensor (100) extending in an axial direction AX including: a gas sensor element (120) which detects the concentration of a specific gas in a gas under measurement; a tubular metallic shell (110) having a polygonal tool engagement portion (110B) surrounding the gas sensor element (120); a tubular outer tube (103) which extends rearward from the metallic shell (110), surrounds the gas sensor element (120), and has an opening (103E) at a rear end thereof; a sealing member (191) which seals the opening (103E); and a tubular heat dissipating member (104) which surrounds the outer tube (103) and reduces the amount of heat transferred from the forward end side of the gas sensor (100) through the outer tube (103) to the sealing member (191). The maximum diameter D1 of the heat dissipating member (104) is equal to or less than the opposite side dimension D2 of the tool engagement portion (110B).
    Type: Application
    Filed: February 28, 2020
    Publication date: September 17, 2020
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Daisuke MATSUYAMA, Masahiro ASAI, Masashi NOMURA, Yuto INOSE
  • Patent number: 9327711
    Abstract: A control device for a hybrid vehicle automatic transmission. The hybrid vehicle being capable of EV travel in which drive wheels are driven by only a rotary electric machine with the internal combustion engine stopped. The control device having an electric oil pump control device to drive an electric oil pump that supplies oil to the friction engagement element. A neutral control device performs disengagement control on the friction engagement element. A drag determination device determines whether conditions under which drag of the friction engagement element occurs are met because of a shortage in amount of oil to be supplied to a cancellation oil chamber of the friction engagement element by the electric oil pump during the EV travel started from a state in which the hybrid vehicle is stationary. Drag elimination control device provides a command to start the internal combustion engine.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 3, 2016
    Assignee: AISIN AW CO., LTD.
    Inventors: Shishun Chin, Kenta Kimata, Masahiro Asai, Kazuhiko Motodohi, Shinichiro Iga
  • Patent number: 9278687
    Abstract: A control device of a hybrid vehicle including an engine; an automatic transmission placed on a power transmission path between the engine and wheels, having a first friction engagement element engaged in a forward range and a second engagement element engaged in a reverse range based on a hydraulic pressure generated while the engine is stopped; and a rotary electric machine capable of driving the wheels without using the power transmission path. The rotary electric machine is driven when a shift range is the forward range or the reverse range while the internal combustion engine is stopped, and the driving of the rotary electric machine is restrained for a set time after the shift range is changed from the forward range to the reverse range or vice versa while the engine is stopped.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: March 8, 2016
    Assignee: AISIN AW CO., LTD.
    Inventors: Kenta Kimata, Masahiro Asai, Kazuhiko Motodohi, Shinichiro Iga
  • Patent number: 9151728
    Abstract: Provided is a gas sensor in which a connection terminal can be favorably fitted onto a cylindrical sensor element without causing a breakage of the connection terminal. An oxygen sensor (1) includes an outer connection terminal (29) having an outer fitting portion (53), an extension portion (55) extending inwardly from an axially intermediate point of the outer fitting portion (53) and pulling prevention portions (75) and (77) formed on rear end parts of the outer fitting portion (53) at positions adjacent to the extension portion (55). When the extension portion (55) of the outer connection terminal (29) is inserted in and pulled out from a through hole (23) of a separator (27), the extension portion (55) can be prevented from further pulling in the through hole (23) by contact of the pulling prevention portions (75) and (77) with a front end surface of the separator (27).
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: October 6, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hidekazu Kato, Tatsuya Okumura, Masahiro Asai, Tomoyuki Miyashita
  • Publication number: 20150032316
    Abstract: A control device for a hybrid vehicle automatic transmission. The hybrid vehicle being capable of EV travel in which drive wheels are driven by only a rotary electric machine with the internal combustion engine stopped. The control device having an electric oil pump control device to drive an electric oil pump that supplies oil to the friction engagement element. A neutral control device performs disengagement control on the friction engagement element. A drag determination device determines whether conditions under which drag of the friction engagement element occurs are met because of a shortage in amount of oil to be supplied to a cancellation oil chamber of the friction engagement element by the electric oil pump during the EV travel started from a state in which the hybrid vehicle is stationary. Drag elimination control device provides a command to start the internal combustion engine.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 29, 2015
    Inventors: Shishun Chin, Kenta Kimata, Masahiro Asai, Kazuhiko Motodohi, Shinichiro Iga
  • Patent number: 8721855
    Abstract: A crimp contact, a gas sensor including the crimp contact for outputting a signal from a sensing portion of a sensor element to an external device, and a method for manufacturing the crimp contact. The crimp contact includes a barrel portion crimped so as to fix a plurality of lead core wires (16) of an electrical lead connected to the external device. A hold portion constituting the barrel portion is formed such that the lead core wires 16 of the electrical lead are disposed in an U-shaped hold portion 77 so as to be crimped between an anvil 120 and a crimper 121. An outer surface of the U-shaped hold portion 77 has a plating layer 85 thereon to thereby constantly secure slidability between a sliding face of the crimper 121 and the outer surface of the U-shaped hold portion 77.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: May 13, 2014
    Assignee: NGK Spark Plug Co. Ltd.
    Inventors: Hisaharu Nishio, Masahiro Asai, Makoto Hishiki
  • Patent number: 8715135
    Abstract: A control device for a hybrid vehicle automatic transmission. A friction engagement element control unit includes a first play elimination control unit that sets a first pressure as the pressure for a first set time where the predetermined friction engagement element is engaged using a hydraulic pressure from the electric oil pump in a travel state in which only the rotary electric machine serves as a drive source. The first play elimination pressure is lower than a play elimination pressure for use in the case where the predetermined friction engagement element is engaged using a hydraulic pressure from the mechanical oil pump in a travel state in which the internal combustion engine serves as a drive source.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 6, 2014
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Yosuke Ueda, Masahiro Asai, Kazuhiko Motodohi, Yoichi Tajima
  • Publication number: 20130260955
    Abstract: A control device of a hybrid vehicle including an engine; an automatic transmission placed on a power transmission path between the engine and wheels, having a first friction engagement element engaged in a forward range and a second engagement element engaged in a reverse range based on a hydraulic pressure generated while the engine is stopped; and a rotary electric machine capable of driving the wheels without using the power transmission path. The rotary electric machine is driven when a shift range is the forward range or the reverse range while the internal combustion engine is stopped, and the driving of the rotary electric machine is restrained for a set time after the shift range is changed from the forward range to the reverse range or vice versa while the engine is stopped.
    Type: Application
    Filed: February 26, 2013
    Publication date: October 3, 2013
    Inventors: Kenta KIMATA, Masahiro ASAI, Kazuhiko MOTODOHI, Shinichiro IGA
  • Publication number: 20130260957
    Abstract: A control device for a hybrid vehicle automatic transmission. A friction engagement element control unit includes a first play elimination control unit that sets a first pressure as the pressure for a first set time where the predetermined friction engagement element is engaged using a hydraulic pressure from the electric oil pump in a travel state in which only the rotary electric machine serves as a drive source. The first play elimination pressure is lower than a play elimination pressure for use in the case where the predetermined friction engagement element is engaged using a hydraulic pressure from the mechanical oil pump in a travel state in which the internal combustion engine serves as a drive source.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 3, 2013
    Applicant: AISIN AW CO., LTD
    Inventors: Yosuke UEDA, Masahiro ASAI, Kazuhiko MOTODOHI, Yoichi TAJIMA
  • Patent number: 8423213
    Abstract: A vehicle control device for controlling a vehicle drive apparatus, the vehicle control device configured with a phase determining mechanism that determines the end of the torque phase in a shift operation, and a rotary electrical machine control mechanism that controls the torque of the rotary electrical machine using a variation of input torque. The vehicle control device is also configured with an engagement control mechanism that provides feedback controlling supplied oil pressure to an engagement side element as an engagement element on a side to be engaged after switching of shift speeds so that the rotation speed change rate of the input member becomes the target rotation speed change rate.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 16, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kohei Tsuda, Yomei Hakumura, Masahiro Asai, Yoichi Tajima, Tomokazu Ito
  • Patent number: 8352109
    Abstract: A vehicle control device for controlling a vehicle drive apparatus, the vehicle control device configured with a release control mechanism that provides feedback controlling supplied oil pressure to a release side element, and an engagement control mechanism that increases supplied oil pressure to an engagement side element as an engagement element on a side to be engaged in a state that the differential rotation speed is substantially constant. The control device is further configured with a phase determining mechanism that determines if the torque phase has started when a condition that a phenomenon accompanying a change of the differential rotation speed due to increase of the supplied oil pressure to the engagement side element is detected is met.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 8, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kohei Tsuda, Yomei Hakumura, Masahiro Asai, Yoichi Tajima, Tomokazu Ito
  • Publication number: 20120304735
    Abstract: Provided is a gas sensor in which a connection terminal can be favorably fitted onto a cylindrical sensor element without causing a breakage of the connection terminal. An oxygen sensor (1) includes an outer connection terminal (29) having an outer fitting portion (53), an extension portion (55) extending inwardly from an axially intermediate point of the outer fitting portion (53) and pulling prevention portions (75) and (77) formed on rear end parts of the outer fitting portion (53) at positions adjacent to the extension portion (55). When the extension portion (55) of the outer connection terminal (29) is inserted in and pulled out from a through hole (23) of a separator (27), the extension portion (55) can be prevented from further pulling in the through hole (23) by contact of the pulling prevention portions (75) and (77) with a front end surface of the separator (27).
    Type: Application
    Filed: December 6, 2011
    Publication date: December 6, 2012
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hidekazu Kato, Tatsuya Okumura, Masahiro Asai, Tomoyuki Miyashita
  • Patent number: 8215153
    Abstract: A gas sensor including a detection element having a detection portion; a metal shell that surrounds the detection element so as to expose the detection portion to a measured atmosphere; an outer tube that is fixed to the metal shell so as to cover a rear end side of the detection element; and a seal member that is contained inside the outer tube, the seal member having a lead wire insertion hole and a through hole that penetrates in the axial direction; a tubular holding member made of a resin having a lower coefficient of thermal expansion than the seal member, the tubular holding member being held inside the through hole, the tubular holding member having a ventilation hole; and a filter that covers the ventilation hole, the filter being joined to the holding member, the filter blocking water from passing therethrough, and the filter having air permeability.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 10, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yoshiaki Matsubara, Takayoshi Atsumi, Kouji Matsuo, Kazuhiro Kouzaki, Masahiro Asai
  • Publication number: 20110106356
    Abstract: A vehicle control device for controlling a vehicle drive apparatus, the vehicle control device configured with a phase determining mechanism that determines the end of the torque phase in a shift operation, and a rotary electrical machine control mechanism that controls the torque of the rotary electrical machine using a variation of input torque. The vehicle control device is also configured with an engagement control mechanism that provides feedback controlling supplied oil pressure to an engagement side element as an engagement element on a side to be engaged after switching of shift speeds so that the rotation speed change rate of the input member becomes the target rotation speed change rate.
    Type: Application
    Filed: September 10, 2010
    Publication date: May 5, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Kohei TSUDA, Yomei Hakumura, Masahiro Asai, Yoichi Tajima, Tomokazu Ito
  • Publication number: 20110106355
    Abstract: A vehicle control device for controlling a vehicle drive apparatus, the vehicle control device configured with a release control mechanism that provides feedback controlling supplied oil pressure to a release side element, and an engagement control mechanism that increases supplied oil pressure to an engagement side element as an engagement element on a side to be engaged in a state that the differential rotation speed is substantially constant. The control device is further configured with a phase determining mechanism that determines if the torque phase has started when a condition that a phenomenon accompanying a change of the differential rotation speed due to increase of the supplied oil pressure to the engagement side element is detected is met.
    Type: Application
    Filed: September 10, 2010
    Publication date: May 5, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Kohei TSUDA, Yomei Hakumura, Masahiro Asai, Yoichi Tajima, Tomokazu Ito
  • Patent number: RE41544
    Abstract: An audio recording and reproducing apparatus includes a controller for controlling the entire behaviors, hard disc for write and read of audio data, audio compression/expansion circuit for expanding compressed audio data, and external I/O port. The audio recording and reproducing apparatus is connected to a network service center to obtain desired music data from storage of the network service center and to store it in the hard disc.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 17, 2010
    Assignee: Sony Corporation
    Inventors: Kazunori Ozawa, Nobuhiro Tone, Masahiro Asai
  • Patent number: RE42701
    Abstract: An audio recording and reproducing apparatus includes a controller for controlling the entire behaviors, hard disc for write and read of audio data, audio compression/expansion circuit for expanding compressed audio data, and external I/O port. The audio recording and reproducing apparatus is connected to a network service center to obtain desired music data from storage of the network service center and to store it in the hard disc.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: September 13, 2011
    Assignee: Sony Corporation
    Inventors: Kazunori Ozawa, Nobuhiro Tone, Masahiro Asai
  • Patent number: RE44954
    Abstract: An audio recording and reproducing apparatus includes a controller for controlling the entire behaviors, hard disc for write and read of audio data, audio compression/expansion circuit for expanding compressed audio data, and external I/O port. The audio recording and reproducing apparatus is connected to a network service center to obtain desired music data from storage of the network service center and to store it in the hard disc.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: June 17, 2014
    Assignee: Sony Corporation
    Inventors: Kazunori Ozawa, Nobuhiro Tone, Masahiro Asai