Patents by Inventor Tomoki Hanada

Tomoki Hanada 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: 11060610
    Abstract: A multistage shaft sealing apparatus includes a first sealing unit, a second sealing unit, and a third sealing unit provided, in a sequential order from a side of the apparatus closer to inside of the apparatus, in a fluid leakage passage formed between the rotating shaft or the rotating member and a housing located to surround the rotating shaft or the rotating member. The first sealing unit includes a first runner and a first sealing ring which form a non-contact-type sealing surface; the second sealing unit includes a second runner and a second sealing ring which form a contact-type sealing surface; the third sealing unit includes a third runner and a third sealing ring which form a contact-type sealing surface, and a purge water supply passage supplying purge water to the third sealing unit and a purge water discharge passage discharging the purge water supplied to the third sealing unit.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takanobu Otani, Hiroshi Kuzumi, Hiroyuki Tokumasu, Toshihiko Matsuo, Yasuhiro Ikeda, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada
  • Patent number: 10914382
    Abstract: A shaft sealing structure for a rotation shaft, includes a sealing ring having ends formed by removal of its part. The ends abutting each other are continuous in the circumferential direction when the sealing ring is reduced in diameter to a radially inner side. The sealing ring is provided along the circumferential direction of the rotation shaft so as to be contactable with an outer peripheral surface of the rotation shaft. The structure also includes a pressing member configured to be movable between a pressing position and a retracted position; an elastic member configured to bias the pressing member toward the pressing position by elastic force; and a support member configured to support the pressing member at the retracted position against the elastic force, and to allow the pressing member to move to the pressing position at a predetermined temperature.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 9, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Naotaka Komatsu, Takumi Hori, Yuichi Otani, Hidetaka Kafuku, Hiromu Okamoto, Shunsuke Tanaka, Yasushi Takayama, Tomoki Hanada
  • Patent number: 10831259
    Abstract: Provided is a photoelectric sensor capable of enhancing display flexibility of a display section mounted on the photoelectric sensor and making this display flexibility contribute to improvement in user's operability. In a Run mode, a current value is displayed in large-sized numerals on a display section. When switching is made from the Run mode to a setting mode and letter information is to be displayed in the setting mode, a current value is displayed in relatively small-sized numerals at the corner (e.g., lower left) of the display section.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: November 10, 2020
    Assignee: KEYENCE CORPORATION
    Inventor: Tomoki Hanada
  • Publication number: 20190301607
    Abstract: A multistage shaft sealing apparatus includes a first sealing unit, a second sealing unit, and a third sealing unit provided, in a sequential order from a side of the apparatus closer to inside of the apparatus, in a fluid leakage passage formed between the rotating shaft or the rotating member and a housing located to surround the rotating shaft or the rotating member. The first sealing unit includes a first runner and a first sealing ring which form a non-contact-type sealing surface; the second sealing unit includes a second runner and a second sealing ring which form a contact-type sealing surface; the third sealing unit includes a third runner and a third sealing ring which form a contact-type sealing surface, and a purge water supply passage supplying purge water to the third sealing unit and a purge water discharge passage discharging the purge water supplied to the third sealing unit.
    Type: Application
    Filed: February 7, 2019
    Publication date: October 3, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takanobu Otani, Hiroshi Kuzumi, Hiroyuki Tokumasu, Toshihiko Matsuo, Yasuhiro Ikeda, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada
  • Patent number: 10311984
    Abstract: The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kentarou Saeki, Hidekazu Uehara, Akihiko Umeda, Masaru Sakai, Hiroshi Kuzumi, Yasuhiro Ikeda, Toshihiko Matsuo, Takanobu Otani, Hiroomi Sakuma, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada, Yuji Harada
  • Publication number: 20190063610
    Abstract: A shaft sealing structure for a rotation shaft, includes a sealing ring having ends formed by removal of its part. The ends abutting each other are continuous in the circumferential direction when the sealing ring is reduced in diameter to a radially inner side. The sealing ring is provided along the circumferential direction of the rotation shaft so as to be contactable with an outer peripheral surface of the rotation shaft. The structure also includes a pressing member configured to be movable between a pressing position and a retracted position; an elastic member configured to bias the pressing member toward the pressing position by elastic force; and a support member configured to support the pressing member at the retracted position against the elastic force, and to allow the pressing member to move to the pressing position at a predetermined temperature.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 28, 2019
    Inventors: Naotaka KOMATSU, Takumi HORI, Yuichi OTANI, Hidetaka KAFUKU, Hiromu OKAMOTO, Shunsuke TANAKA, Yasushi TAKAYAMA, Tomoki HANADA
  • Patent number: 10064297
    Abstract: An electronic control unit includes a substrate, a first cover, and a second cover. An electronic component is mounted on the substrate. The first cover is disposed to be opposed to one surface of the substrate and includes a first sidewall part extending in a direction perpendicular to the substrate, and claw part(s) projecting laterally from the first sidewall part. The second cover is disposed to be opposed to the other surface of the substrate and includes a second sidewall part, and groove part(s). The second sidewall part faces the first sidewall part. The groove part(s) is formed at the second sidewall part such that a shape of each of the groove part(s) when viewed from the direction perpendicular to the substrate is a recessed shape in conformity with a projecting shape of a corresponding claw part. Each groove part is fitted to a corresponding claw part.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: August 28, 2018
    Assignee: DENSO CORPORATION
    Inventors: Tomoki Hanada, Ryo Nishimoto, Hiroyuki Ibaraki
  • Publication number: 20180059772
    Abstract: Provided is a photoelectric sensor capable of enhancing display flexibility of a display section mounted on the photoelectric sensor and making this display flexibility contribute to improvement in user's operability. In a Run mode, a current value is displayed in large-sized numerals on a display section. When switching is made from the Run mode to a setting mode and letter information is to be displayed in the setting mode, a current value is displayed in relatively small-sized numerals at the corner (e.g., lower left) of the display section.
    Type: Application
    Filed: November 7, 2017
    Publication date: March 1, 2018
    Applicant: Keyence Corporation
    Inventor: Tomoki Hanada
  • Patent number: 9841808
    Abstract: Provided is a photoelectric sensor capable of enhancing display flexibility of a display section mounted on the photoelectric sensor and making this display flexibility contribute to improvement in user's operability. In a Run mode, a current value is displayed in large-sized numerals on a display section. When switching is made from the Run mode to a setting mode and letter information is to be displayed in the setting mode, a current value is displayed in relatively small-sized numerals at the corner (e.g., lower left) of the display section.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 12, 2017
    Assignee: Keyence Corporation
    Inventor: Tomoki Hanada
  • Patent number: 9696195
    Abstract: Provided is an ultrasonic flow switch that can be used by simple setting operation. Input information regarding at least one of the pipe and the fluid is accepted, a flow rate of the fluid in the pipe is calculated, based on an output signal of at least one of the ultrasonic elements, and the accepted input information, and an on/off signal is outputted, based on the calculated flow rate and a flow rate threshold value decided beforehand. In a simple setting mode, only an outer diameter of the pipe, only a thickness of the pipe, or both the outer diameter and the thickness of the pipe is (are) accepted as the input information.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 4, 2017
    Assignee: Keyence Corporation
    Inventors: Kaname Ishikawa, Tomoki Hanada
  • Publication number: 20160334254
    Abstract: Provided is an ultrasonic flow switch that can be used by simple setting operation. Input information regarding at least one of the pipe and the fluid is accepted, a flow rate of the fluid in the pipe is calculated, based on an output signal of at least one of the ultrasonic elements, and the accepted input information, and an on/off signal is outputted, based on the calculated flow rate and a flow rate threshold value decided beforehand. In a simple setting mode, only an outer diameter of the pipe, only a thickness of the pipe, or both the outer diameter and the thickness of the pipe is (are) accepted as the input information.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 17, 2016
    Inventors: Kaname ISHIKAWA, Tomoki HANADA
  • Publication number: 20160295729
    Abstract: An electronic control unit includes a substrate, a first cover, and a second cover. An electronic component is mounted on the substrate. The first cover is disposed to be opposed to one surface of the substrate and includes a first sidewall part extending in a direction perpendicular to the substrate, and claw part(s) projecting laterally from the first sidewall part. The second cover is disposed to be opposed to the other surface of the substrate and includes a second sidewall part, and groove part(s). The second sidewall part faces the first sidewall part. The groove part(s) is formed at the second sidewall part such that a shape of each of the groove part(s) when viewed from the direction perpendicular to the substrate is a recessed shape in conformity with a projecting shape of a corresponding claw part. Each groove part is fitted to a corresponding claw part.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 6, 2016
    Inventors: Tomoki Hanada, Ryo Nishimoto, Hiroyuki Ibaraki
  • Patent number: 9354352
    Abstract: Provided is a photoelectric sensor that detects a workpiece by measuring light transmission time. A photoelectric sensor includes: a light emitting element which repeatedly generates detection light; a light receiving element which receives reflected light of the detection light; a binarization processing section which binarizes a light receiving signal; a waveform detection section which detects waveform data indicating a temporal change of the binarized light receiving signal; a waveform integration section which matches light emitting timing of the light receiving element to integrate two or more pieces of waveform data and generates integrated waveform data; and a workpiece discrimination section which discriminates presence or absence of a workpiece based on the integrated waveform data, whereby the reflected light is sampled at a high speed while a circuit scale is suppressed, to detect the workpiece.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 31, 2016
    Assignee: Keyence Corporation
    Inventors: Jiro Baba, Tomoki Hanada
  • Publication number: 20150221400
    Abstract: The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.
    Type: Application
    Filed: September 27, 2013
    Publication date: August 6, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kentarou Saeki, Hidekazu Uehara, Akihiko Umeda, Masaru Sakai, Hiroshi Kuzumi, Yasuhiro Ikeda, Toshihiko Matsuo, Takanobu Otani, Hiroomi Sakuma, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada, Yuji Harada
  • Publication number: 20150109308
    Abstract: Provided is a photoelectric sensor capable of enhancing display flexibility of a display section mounted on the photoelectric sensor and making this display flexibility contribute to improvement in user's operability. In a Run mode, a current value is displayed in large-sized numerals on a display section. When switching is made from the Run mode to a setting mode and letter information is to be displayed in the setting mode, a current value is displayed in relatively small-sized numerals at the corner (e.g., lower left) of the display section.
    Type: Application
    Filed: September 10, 2014
    Publication date: April 23, 2015
    Inventor: Tomoki Hanada
  • Publication number: 20150102205
    Abstract: Provided is a photoelectric sensor that detects a workpiece by measuring light transmission time. A photoelectric sensor includes: a light emitting element which repeatedly generates detection light; a light receiving element which receives reflected light of the detection light; a binarization processing section which binarizes a light receiving signal; a waveform detection section which detects waveform data indicating a temporal change of the binarized light receiving signal; a waveform integration section which matches light emitting timing of the light receiving element to integrate two or more pieces of waveform data and generates integrated waveform data; and a workpiece discrimination section which discriminates presence or absence of a workpiece based on the integrated waveform data, whereby the reflected light is sampled at a high speed while a circuit scale is suppressed, to detect the workpiece.
    Type: Application
    Filed: September 8, 2014
    Publication date: April 16, 2015
    Inventors: Jiro Baba, Tomoki Hanada
  • Patent number: 8378780
    Abstract: The present invention provides a connected sensor system which can be easily used by the user and which can give an external input to each sensor unit without making the wiring complicated, and also provides a network unit and a sensor unit used for the connected sensor system. A cyclic communication memory of a network unit is arranged with an external input request region, and an external input signal is stored to a corresponding memory in a host control apparatus. By performing cyclic communication between the network unit and the host control apparatus, the external input signal is stored to the cyclic communication memory of the network unit. Accordingly, the external input signal is transmitted to each sensor unit connected to the network unit, and each sensor unit executes the external input function.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 19, 2013
    Assignee: Keyence Corporation
    Inventors: Tomoki Hanada, Koji Fukumura
  • Publication number: 20110018688
    Abstract: The present invention provides a connected sensor system which can be easily used by the user and which can give an external input to each sensor unit without making the wiring complicated, and also provides a network unit and a sensor unit used for the connected sensor system. A cyclic communication memory of a network unit is arranged with an external input request region, and an external input signal is stored to a corresponding memory in a host control apparatus. By performing cyclic communication between the network unit and the host control apparatus, the external input signal is stored to the cyclic communication memory of the network unit. Accordingly, the external input signal is transmitted to each sensor unit connected to the network unit, and each sensor unit executes the external input function.
    Type: Application
    Filed: June 18, 2010
    Publication date: January 27, 2011
    Applicant: KEYENCE CORPORATION
    Inventors: Tomoki Hanada, Koji Fukumura
  • Patent number: 7639374
    Abstract: An optical displacement sensor is described that is capable of correctly detecting a target object, even if the position of the target object is changed in an amount greater than the thickness of the target object.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: December 29, 2009
    Assignee: Keyence Corporation
    Inventors: Tomonari Torii, Tomoki Hanada
  • Patent number: 7639373
    Abstract: It is an object to provide an optical displacement sensor and an optical displacement measurement device capable of improving the detection accuracy in detecting the presence or absence of a target object.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 29, 2009
    Assignee: Keyence Corporation
    Inventors: Tomonari Torii, Tomoki Hanada