Patents by Inventor Takashi Ishiyama

Takashi Ishiyama 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: 11933739
    Abstract: An image of an inspection surface of a product shot with a first imaging unit is divided into partial area images. For each partial area, a narrow-angle partial area image shot with a second imaging unit is acquired under shooting conditions in a pre-learning table in which the conditions and IDs are set. For each partial area, the narrow-angle partial area image suitable for inspection is selected, an inspection image is generated, and an anomaly of the inspection surface is detected based on the inspection image. For each partial area, whether each condition is effective is determined based on a frequency of the ID included by the inspection image. For each partial area, whether a predetermined condition is established is determined, and, with respect to the partial area in which the predetermined condition is established, a post-learning table is established in which only the condition determined to be effective is set.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 19, 2024
    Assignee: NEC CORPORATION
    Inventors: Takashi Shibata, Toru Takahashi, Rui Ishiyama
  • Patent number: 11428307
    Abstract: A hydraulically actuated transmission includes a reducing valve provided at a lubricant oil supplying circuit and configured to reduce a pressure of a lubricant oil having a predetermined pressure and output the lubricant oil with a reduced pressure; and a switching device (switching valve) configured to selectively switch between a first path and a second path as the path for supplying the lubricant oil from the reducing valve to a to-be-lubricated portion. The reducing valve is configured such that an output pressure of the lubricant oil from the reducing valve is higher when the second path is selected by the switching device, than when the first path is selected by the switching device.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 30, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Patent number: 11143293
    Abstract: A power train device for a vehicle is provided with a selector valve that is switched between a first state in which oil discharged from an electric oil pump is able to be supplied as a hydraulic fluid to an engagement hydraulic chamber of a vehicle-starting frictional engagement element, and a second state in which the oil is able to be supplied as a lubricating oil to the vehicle-starting frictional engagement element through a first lubricating oil supply circuit, depending on a magnitude of a discharge pressure of a mechanical oil pump.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: October 12, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Keitaro Kageyama, Shotaro Nagai, Takashi Ishiyama, Takuya Sugisawa
  • Patent number: 11073201
    Abstract: A hydraulically operated transmission includes: a pressure regulator which regulates pressure of a hydraulic oil supplied to a coupling hydraulic chamber of a frictional coupling element for starting a vehicle; and a lubrication control valve provided at a lubricant oil supplying circuit for supplying the lubricant oil to the frictional coupling element. The lubrication control valve operates, in coupling the frictional coupling element at start of the vehicle, such that the lubricant oil is supplied to the frictional coupling element at a greater flow rate when a regulated pressure regulated by the pressure regulator is lower than a second predetermined pressure, than when the regulated pressure is higher than or equal to the second predetermined pressure. The second predetermined pressure is set to be higher than or equal to a first predetermined pressure, at which the frictional coupling element is completely coupled, and to be lower than a high pressure.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 27, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Patent number: 11047468
    Abstract: A hydraulically actuated transmission includes a selecting switching valve configured to selectively switch between a first switching valve and a second switching valve as a valve to be connected with an outlet port of a solenoid valve. The selecting switching valve is configured to operate in response to a hydraulic pressure applied to a specific frictional coupling element (second brake) in accordance with coupling and releasing of the specific frictional coupling element, and is configured to connect the outlet port with the first switching valve while the hydraulically actuated transmission is in high gear which is higher than or equal to a predetermined gear, and connect the outlet port with the second switching valve while the hydraulically actuated transmission is in the low gear which is lower than the predetermined gear.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 29, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Publication number: 20200355262
    Abstract: A power train device for a vehicle is provided with a selector valve that is switched between a first state in which oil discharged from an electric oil pump is able to be supplied as a hydraulic fluid to an engagement hydraulic chamber of a vehicle-starting frictional engagement element, and a second state in which the oil is able to be supplied as a lubricating oil to the vehicle-starting frictional engagement element through a first lubricating oil supply circuit, depending on a magnitude of a discharge pressure of a mechanical oil pump.
    Type: Application
    Filed: October 23, 2018
    Publication date: November 12, 2020
    Inventors: Keitaro KAGEYAMA, Shotaro NAGAI, Takashi ISHIYAMA, Takuya SUGISAWA
  • Publication number: 20200056694
    Abstract: A hydraulically actuated transmission includes a reducing valve provided at a lubricant oil supplying circuit and configured to reduce a pressure of a lubricant oil having a predetermined pressure and output the lubricant oil with a reduced pressure; and a switching device (switching valve) configured to selectively switch between a first path and a second path as the path for supplying the lubricant oil from the reducing valve to a to-be-lubricated portion. The reducing valve is configured such that an output pressure of the lubricant oil from the reducing valve is higher when the second path is selected by the switching device, than when the first path is selected by the switching device.
    Type: Application
    Filed: November 1, 2017
    Publication date: February 20, 2020
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Publication number: 20200056695
    Abstract: A hydraulically actuated transmission includes a selecting switching valve configured to selectively switch between a first switching valve and a second switching valve as a valve to be connected with an outlet port of a solenoid valve. The selecting switching valve is configured to operate in response to a hydraulic pressure applied to a specific frictional coupling element (second brake) in accordance with coupling and releasing of the specific frictional coupling element, and is configured to connect the outlet port with the first switching valve while the hydraulically actuated transmission is in high gear which is higher than or equal to a predetermined gear, and connect the outlet port with the second switching valve while the hydraulically actuated transmission is in the low gear which is lower than the predetermined gear.
    Type: Application
    Filed: November 1, 2017
    Publication date: February 20, 2020
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Publication number: 20200025286
    Abstract: A hydraulic control device (1) for an automatic transmission includes: a variable displacement oil pump (10); a regulator valve (30); and a lubrication control valve (50) configured to select whether or not oil discharged from the variable displacement oil pump (10) is to be supplied to a to-be-lubricated portion. The lubrication control valve (50) has a control port (54) connected to an open/close port (38) of the regulator valve (30). A controlled pressure at the control port (54) is changed in response to opening and closing of the open/close port (38) to select whether or not the oil is to be supplied to the to-be-lubricated portion.
    Type: Application
    Filed: February 19, 2018
    Publication date: January 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Koichi MATSUURA, Tatsuhiro MINAMI, Masahiro KAJI, Takashi ISHIYAMA
  • Publication number: 20190271388
    Abstract: A hydraulically operated transmission includes: a pressure regulator which regulates pressure of a hydraulic oil supplied to a coupling hydraulic chamber of a frictional coupling element for starting a vehicle; and a lubrication control valve provided at a lubricant oil supplying circuit for supplying the lubricant oil to the frictional coupling element. The lubrication control valve operates, in coupling the frictional coupling element at start of the vehicle, such that the lubricant oil is supplied to the frictional coupling element at a greater flow rate when a regulated pressure regulated by the pressure regulator is lower than a second predetermined pressure, than when the regulated pressure is higher than or equal to the second predetermined pressure. The second predetermined pressure is set to be higher than or equal to a first predetermined pressure, at which the frictional coupling element is completely coupled, and to be lower than a high pressure.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 5, 2019
    Inventors: Takashi Ishiyama, Fumitoshi Sato, Hiroyuki Okayama, Masuhiro Kawakami, Tomokazu Kinoshita
  • Publication number: 20190100518
    Abstract: The present invention relates to a cross-linking agent for cross-linking an indole-structure-containing molecule to a desired molecule, the cross-linking agent containing, as an effective component, a radical compound having an N-oxy radical group and a group capable of bonding to the desired molecule.
    Type: Application
    Filed: March 8, 2017
    Publication date: April 4, 2019
    Applicant: The University of Tokyo
    Inventors: Motomu KANAI, Kounosuke OISAKI, Yohei SEKI, Daisuke SASAKI, Takashi ISHIYAMA
  • Publication number: 20180066755
    Abstract: A shift position determination portion determines that operation of shifting a shift position from other range than a parking range to the parking range is conducted. A parking lock command portion causes a piston to maintain a state of being mechanically locked at a second position when the shift position is shifted to the parking range. An actuator drive command portion commands an actuator to drive the piston from the second position to a first position in a state where the position of the piston is mechanically locked at the second position. A parking lock failure determination portion determines that the locking mechanism portion is in a failure in an unlocked state when the position of the piston goes out of the second position within a predetermined time after a command is issued.
    Type: Application
    Filed: August 15, 2017
    Publication date: March 8, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takahiro KIMURA, Yasuo SHIGENAKA, Kenji SAWA, Keitaro KAGEYAMA, Takashi ISHIYAMA, Masamichi FUJIKAWA
  • Patent number: 9316273
    Abstract: Provided is a torque converter (1) which comprises: a casing (10) coupled to an output shaft of an engine; a torus (T) defined by a pump (20), a turbine (30) and a stator (40) each disposed within the casing (10); a multi-plate lockup clutch (60) adapted to directly couple the turbine (30) and the casing (10); and a lockup damper (70) adapted to absorb shock during engagement of the lockup clutch (60). The lockup clutch (60) and the lockup damper (70) are arranged within a space between the torus (T) and a surface of the casing (10) on the side of the engine, in an axially overlapping relation. The lockup clutch (60) is disposed on a radially inner side with respect to a widest region (T1) of the torus (T), and the lockup damper (70) is disposed on a radially outer side with respect to the widest region (T1). This makes it possible to engage the lockup clutch (60) with excellent response while suppressing shock, and shorten an overall length of an automatic transmission.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: April 19, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Tokimori Saka, Norio Iwashita, Takashi Ishiyama, Hidetoshi Maeta
  • Patent number: 9206168
    Abstract: The present invention provides a compound which enhances the production of erythropoietin. The present invention provides a compound represented by the formula (1) wherein R1: an aromatic hydrocarbon ring group or an aromatic heterocyclic group; R2: a hydrogen atom, an alkyl group, or a heterocycloalkyl group; R3: a hydrogen atom or an alkyl group; A: a hydrogen atom or a hydroxy group; L: —NHCO— or —OCH2—; and X: a nitrogen atom or ?CH—.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: December 8, 2015
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tatsuya Nishi, Naoki Tanaka, Ryoko Kitazawa, Riki Goto, Takashi Ishiyama
  • Patent number: 8939267
    Abstract: A torque converter includes, in a case coupled to an output shaft of an engine, a torus formed from a pump, a turbine and a stator having a one-way clutch on the inside thereof, and a lock-up clutch. In addition, in this torque converter, a fluid from a pump is introduced from a space between a stator shaft (F2) and a turbine shaft (F1), and discharged from a space between a pump sleeve (23) and the stator shaft (F2) through a space where the lock-up clutch is disposed and the torus. Moreover, this torque converter further includes a seal member (80) which is disposed at a side that is closer to the engine than a spline engagement part (P2) of an inner race (52) and the stator shaft (F2), and seals a space between an inner peripheral face of the inner race (52) and an outer peripheral face of the stator shaft (F2).
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 27, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Norio Iwashita, Tokimori Saka, Takashi Ishiyama, Hidetoshi Maeta
  • Publication number: 20150011574
    Abstract: The present invention provides a compound which enhances the production of erythropoietin. The present invention provides a compound represented by the formula (1) wherein R1: an aromatic hydrocarbon ring group or an aromatic heterocyclic group; R2: a hydrogen atom, an alkyl group, or a heterocycloalkyl group; R3: a hydrogen atom or an alkyl group; A: a hydrogen atom or a hydroxy group; L: —NHCO— or —OCH2—; and X: a nitrogen atom or ?CH—.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tatsuya NISHI, Naoki TANAKA, Ryoko KITAZAWA, Riki GOTO, Takashi ISHIYAMA
  • Patent number: 8925700
    Abstract: Disclosed is a torque converter (1) which comprises: a casing (10) coupled to an output shaft of an engine; a torus (T) defined by a pump (20), a turbine (30) and a stator (40) each disposed within the casing (10); a lockup clutch (60) adapted to directly couple the turbine (30) and the casing (10); and a lockup damper (70) adapted to absorb shock during engagement of the lockup clutch (60). The turbine (30) has an outer peripheral portion (31a) bulging toward the engine to define a part of the torus (T), an inner peripheral portion (31c) located on the side of the engine with respect to a one-way clutch (50) supporting the stator (40), and an intermediate portion (31b) formed to be concaved toward a side opposite to the engine, in a radial position between the outer peripheral portion (31a) and the inner peripheral portion (31c). A part (75) of the lockup damper (70) is disposed on the side of the engine with respect to the intermediate portion (31b) and in a position axially overlapping with the torus (T).
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 6, 2015
    Assignees: Exedy Corporation, Mazda Motor Corporation
    Inventors: Takeshi Kawamoto, Tokimori Saka, Norio Iwashita, Takashi Ishiyama, Hidetoshi Maeta
  • Publication number: 20130175131
    Abstract: A torque converter includes, in a case coupled to an output shaft of an engine, a torus formed from a pump, a turbine and a stator having a one-way clutch on the inside thereof, and a lock-up clutch. In addition, in this torque converter, a fluid from a pump is introduced from a space between a stator shaft (F2) and a turbine shaft (F1), and discharged from a space between a pump sleeve (23) and the stator shaft (F2) through a space where the lock-up clutch is disposed and the torus. Moreover, this torque converter further includes a seal member (80) which is disposed at a side that is closer to the engine than a spline engagement part (P2) of an inner race (52) and the stator shaft (F2), and seals a space between an inner peripheral face of the inner race (52) and an outer peripheral face of the stator shaft (F2).
    Type: Application
    Filed: July 21, 2011
    Publication date: July 11, 2013
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Norio Iwashita, Tokimori Saka, Takashi Ishiyama, Hidetoshi Maeta
  • Publication number: 20130153352
    Abstract: Disclosed is a torque converter (1) which comprises: a casing (10) coupled to an output shaft of an engine; a torus (T) defined by a pump (20), a turbine (30) and a stator (40) each disposed within the casing (10); a lockup clutch (60) adapted to directly couple the turbine (30) and the casing (10); and a lockup damper (70) adapted to absorb shock during engagement of the lockup clutch (60). The turbine (30) has an outer peripheral portion (31a) bulging toward the engine to define a part of the torus (T), an inner peripheral portion (31c) located on the side of the engine with respect to a one-way clutch (50) supporting the stator (40), and an intermediate portion (31b) formed to be concaved toward a side opposite to the engine, in a radial position between the outer peripheral portion (31a) and the inner peripheral portion (31c). A part (75) of the lockup damper (70) is disposed on the side of the engine with respect to the intermediate portion (31b) and in a position axially overlapping with the torus (T).
    Type: Application
    Filed: July 27, 2011
    Publication date: June 20, 2013
    Applicant: EXEDY CORPORATION
    Inventors: Takeshi Kawamoto, Tokimori Saka, Norio Iwashita, Takashi Ishiyama, Hidetoshi Maeta
  • Publication number: 20130140123
    Abstract: Provided is a torque converter (1) which comprises: a casing (10) coupled to an output shaft of an engine; a torus (T) defined by a pump (20), a turbine (30) and a stator (40) each disposed within the casing (10); a multi-plate lockup clutch (60) adapted to directly couple the turbine (30) and the casing (10); and a lockup damper (70) adapted to absorb shock during engagement of the lockup clutch (60). The lockup clutch (60) and the lockup damper (70) are arranged within a space between the torus (T) and a surface of the casing (10) on the side of the engine, in an axially overlapping relation. The lockup clutch (60) is disposed on a radially inner side with respect to a widest region (T1) of the torus (T), and the lockup damper (70) is disposed on a radially outer side with respect to the widest region (T1). This makes it possible to engage the lockup clutch (60) with excellent response while suppressing shock, and shorten an overall length of an automatic transmission.
    Type: Application
    Filed: July 21, 2011
    Publication date: June 6, 2013
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tokimori Saka, Norio Iwashita, Takashi Ishiyama, Hidetoshi Maeta