Patents by Inventor Tatsuya Ishizaki

Tatsuya Ishizaki 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: 11371388
    Abstract: A turbocharger (1A) includes a rotary shaft (2), a journal hearing (5A), and a bearing housing (10). The journal hearing (5A) includes load support surfaces (14 and 15), a first gap forming portion (F1), and a second gap forming portion (F2). The first gap forming portion (F1) firms a first gap (101) in a radial direction between the load support surfaces (14 and 15) adjacent to each other in a direction of a central axis (O). The second gap forming portion (F2) forms a second gap (102) smaller than the first gap in the radial direction between the load support surfaces (14 and 15) adjacent to each other in the direction of the central axis (O).
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: June 28, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.
    Inventors: Takaya Futae, Tatsuya Ishizaki, Hiromichi Oba, Taiyo Shirakawa
  • Publication number: 20220197423
    Abstract: According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Chihiro TANAKA, Naoki TAKADA, Toshihiko TANAKA, Hayato KURASAWA, Koji ISHIZAKI, Tatsuya WAKIMOTO, Masaki MIYATAKE
  • Patent number: 11347338
    Abstract: According to one embodiment, a detection device includes a substrate, detection electrode, terminal formed of a metal material, lead, coating layer, conductive adhesion layer, and circuit board. The lead connects the electrode and the terminal. The coating layer covers the electrode and the lead, and partly covers the terminal. The adhesion layer covers a part of the terminal exposed from the coating layer and covers a part of the coating layer. The circuit board is connected to the terminal with the adhesion layer interposed therebetween. At least in an overlapping area where the adhesion layer covers the coating layer, an area of the metal material per unit area is smaller than that of the other area of the terminal.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: May 31, 2022
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Keisuke Asada, Tatsuya Ide, Koji Ishizaki
  • Patent number: 11267417
    Abstract: A collision detecting structure includes a pressure generating tube extending in a vehicle width direction, a rear wall portion disposed on a rear side of the pressure generating tube, a tube compressing portion disposed frontward of the pressure generating tube and including an projecting wall portion that is in a plate-like shape and extends in a vehicle front-rear direction; and a tube retaining member disposed opposite to the projecting wall portion and retaining the pressure generating tube between the projecting wall portion and the tube retaining portion.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: March 8, 2022
    Assignee: HONDA MOTOR CO. LTD.
    Inventors: Teruaki Aizawa, Akira Hojo, Tatsuya Ishizaki, Hiroyuki Midorikawa
  • Patent number: 11208915
    Abstract: A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: December 28, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Tatsuya Ishizaki, Yuta Ishii, Takaya Futae, Noriyuki Hayashi
  • Patent number: 11186242
    Abstract: Provided is an energy absorption member including a plate shaped rear wall portion which extends in a vehicle width direction; and an extension wall portion that extends in the vehicle width direction and extends forward from an intermediate part in a height direction of the rear wall portion; wherein the rear wall portion takes on an arch shape that projects forward in a plan view, and the extension wall portion is inclined downward or upward from its rear end part toward its front end part.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: November 30, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Teruaki Aizawa, Tatsuya Ishizaki, Hiroyuki Midorikawa, Masaki Umezawa, Akira Hojo
  • Patent number: 11180101
    Abstract: A sensor attachment structure includes an energy absorption member, a sensor attachment portion provided to the energy absorption member and configured to attach a sensor case that houses a pressure sensor, and a cover that defines a space to house the sensor case between the cover and the sensor attachment portion. The sensor case is attached to the sensor attachment portion by locking. At least one of the sensor case, the sensor attachment portion, and the cover includes a fall preventing structure that prevents the sensor case from falling off an opening formed by the sensor attachment portion and the cover.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 23, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Teruaki Aizawa, Tatsuya Ishizaki, Hiroyuki Midorikawa, Masaki Umezawa, Keita Kataoka
  • Publication number: 20210199021
    Abstract: A turbocharger (1A) includes a rotary shaft (2), a journal hearing (5A), and a bearing housing (10). The journal hearing (5A) includes load support surfaces (14 and 15), a first gap forming portion (F1), and a second gap forming portion (F2). The first gap forming portion (F1) firms a first gap (101) in a radial direction between the load support surfaces (14 and 15) adjacent to each other in a direction of a central axis (O). The second gap forming portion (F2) forms a second gap (102) smaller than the first gap in the radial direction between the load support surfaces (14 and 15) adjacent to each other in the direction of the central axis (O).
    Type: Application
    Filed: July 23, 2018
    Publication date: July 1, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaya Futae, Tatsuya Ishizaki, Hiromichi Oba, Taiyo Shirakawa
  • Patent number: 10995629
    Abstract: A variable nozzle mechanism in which a nozzle mount has a first surface which has a minimum clearance in a direction of an axis with respect to a lever side facing surface in an opposing region facing the lever side facing surface in the direction of the axis, and a second surface which is disposed adjacent to the first surface in a circumferential direction of the nozzle mount and has a clearance in the direction of the axis with respect to the lever side facing surface larger than the clearance in the direction of the axis between the first surface and the lever side facing surface.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 4, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yuya Nakahara, Tatsuya Ishizaki, Noriyuki Hayashi, Toyotaka Yoshida
  • Patent number: 10961904
    Abstract: A turbocharger for supercharging an internal combustion engine includes: a bearing housing which accommodates a bearing supporting a rotational shaft of the turbocharger; an oil discharge port for discharging lubricant oil stored in an internal space of the bearing housing; an air pocket formed in the oil discharge port or an oil discharge pipe connected to the oil discharge port; and a communication flow passage which brings the air pocket and the internal space into communication.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 30, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yoshimi Kagimoto, Tatsuya Ishizaki, Yuta Ishii
  • Publication number: 20210062676
    Abstract: A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole.
    Type: Application
    Filed: January 30, 2018
    Publication date: March 4, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Tatsuya ISHIZAKI, Yuta ISHII, Takaya FUTAE, Noriyuki HAYASHI
  • Publication number: 20200370470
    Abstract: Provided are an exhaust bypass device and a turbocharger. The present invention is provided with: an actuator (31) for reciprocating a driving-rod (41) in the axial direction; a support shaft (34) rotatably supported in a housing (46); a connection link (33) having one end portion and the other end portion, wherein the one end portion is rotatably connected to a tip portion of the driving-rod (41), and the other end portion is fixed to one end portion in the axial direction of the support shaft (34); a waste gate valve (36) connected to the other end portion in the axial direction of the support shaft (34); and a compressive coil spring (61) disposed between the housing (46) and the connection link (33), and having a coil diameter that varies along the axial direction.
    Type: Application
    Filed: March 30, 2017
    Publication date: November 26, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takeshi YOSHIMI, Tatsuya ISHIZAKI, Noriyuki HAYASHI, Yukihide NAGAYO, Eigo KATOU, Motoki EBISU, Ko YAMAGUCHI, Ryoji SHIGETA
  • Publication number: 20200370471
    Abstract: Provided are an exhaust bypass device and a turbocharger. The present invention is provided with: an actuator for reciprocating a driving-rod in the axial direction; a support shaft rotatably supported in a housing; a connection link having one end portion and the other end portion, wherein the one end portion is rotatably connected by a connection member to a tip portion of a connection rod connected to the driving-rod, and the other end portion is fixed to one end portion in the axial direction of the support shaft; and a waste gate valve connected to the other end portion in the axial direction of the support shaft. The present invention is also provided with: a connection shaft provided in the connection link as the connection member; and a bearing block provided in the connection rod and serving as a bearing member that rotatably supports a plurality of different parts in an axial direction of the connection shaft.
    Type: Application
    Filed: March 30, 2017
    Publication date: November 26, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takeshi YOSHIMI, Tatsuya ISHIZAKI, Noriyuki HAYASHI, Motoki EBISU
  • Publication number: 20200276952
    Abstract: A collision detecting structure includes a pressure generating tube extending in a vehicle width direction, a rear wall portion disposed on a rear side of the pressure generating tube, a tube compressing portion disposed frontward of the pressure generating tube and including an projecting wall portion that is in a plate-like shape and extends in a vehicle front-rear direction; and a tube retaining member disposed opposite to the projecting wall portion and retaining the pressure generating tube between the projecting wall portion and the tube retaining portion.
    Type: Application
    Filed: October 24, 2017
    Publication date: September 3, 2020
    Inventors: Teruaki AIZAWA, Akira HOJO, Tatsuya ISHIZAKI, Hiroyuki MIDORIKAWA
  • Publication number: 20200262370
    Abstract: Provided is an energy absorption member including a plate shaped rear wall portion which extends in a vehicle width direction; and an extension wall portion that extends in the vehicle width direction and extends forward from an intermediate part in a height direction of the rear wall portion; wherein the rear wall portion takes on an arch shape that projects forward in a plan view, and the extension wall portion is inclined downward or upward from its rear end part toward its front end part.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 20, 2020
    Inventors: Teruaki AIZAWA, Tatsuya ISHIZAKI, Hiroyuki MIDORIKAWA, Masaki UMEZAWA, Akira HOJO
  • Publication number: 20200262376
    Abstract: A sensor attachment structure includes an energy absorption member, a sensor attachment portion provided to the energy absorption member and configured to attach a sensor case that houses a pressure sensor, and a cover that defines a space to house the sensor case between the cover and the sensor attachment portion. The sensor case is attached to the sensor attachment portion by locking. At least one of the sensor case, the sensor attachment portion, and the cover includes a fall preventing structure that prevents the sensor case from falling off an opening formed by the sensor attachment portion and the cover.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Teruaki AIZAWA, Tatsuya ISHIZAKI, Hiroyuki MIDORIKAWA, Masaki UMEZAWA, Keita KATAOKA
  • Publication number: 20200158010
    Abstract: A turbocharger for supercharging an internal combustion engine includes: a bearing housing which accommodates a bearing supporting a rotational shaft of the turbocharger; an oil discharge port for discharging lubricant oil stored in an internal space of the bearing housing; an air pocket formed in the oil discharge port or an oil discharge pipe connected to the oil discharge port; and a communication flow passage which brings the air pocket and the internal space into communication.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 21, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yoshimi KAGIMOTO, Tatsuya ISHIZAKI, Yuta ISHII
  • Patent number: 10641330
    Abstract: Reduce bearing loss due to lubricating oil using a rotary shaft; a journal bearing that is provided to the rotary shaft and that rotatably supports the rotary shaft; a flange part having an opposing surface part that is arranged so as to oppose a side surface part of the journal bearing with a gap therebetween in the axial direction in which the rotary shaft extends; and a recess part provided in the side surface part or the opposing surface part. In the projected area of the journal bearing in the axial direction, the area of a section including the recess part and not forming the gap is larger than the area in which the side surface part and the opposing surface part form the gap.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takaya Futae, Takashi Nambu, Tatsuya Ishizaki, Seigi Yano
  • Patent number: 10480576
    Abstract: The present invention improves the drainability of lubricating oil. The present invention comprises: a rotating shaft (14); a journal bearing that is provided to the rotating shaft (14) and rotationally supports the rotating shaft (14); a bearing housing part that houses the journal bearing; and a drain oil space chamber (47) that acts as an oil drainage passage that communicates with the bearing housing part, is provided along the periphery of the rotating shaft (14), and is formed to open downward.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: November 19, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yuya Kojima, Tatsuya Ishizaki, Yosuke Dammoto, Yoji Akiyama
  • Patent number: 10473207
    Abstract: An oil-drain device for a thrust bearing includes: a rotor shaft; a collar member mounted to an outer periphery of the rotor shaft; a thrust bearing supporting the rotor shaft in an axial direction; and an oil-drain space forming member defining an oil-drain space through which lubricant oil leaking from a sliding portion of the thrust bearing flows, between the thrust bearing and the oil-drain space forming member. The oil-drain space includes: an oil-drain channel defined between a first end surface of the thrust bearing and a first end surface of the oil-drain space forming member, surrounding the flange portion of the collar member; and an oil-drain port formed below the oil-drain channel, for discharging the lubricant oil flowing through the oil-drain channel outside the oil-drain space.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 12, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Tadasuke Nishioka, Yosuke Danmoto, Isao Tomita, Takashi Nambu, Yoji Akiyama, Yuya Kojima, Tatsuya Ishizaki, Seigi Yano, Takaya Futae, Motoki Ebisu