Patents by Inventor Kazuya Yamada

Kazuya Yamada 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: 12009180
    Abstract: A plasma processing apparatus includes: a processing chamber; a first radio frequency power supply configured to supply a first radio frequency power; a second radio frequency power supply configured to supply a second radio frequency power; and a control device configured to, when the first radio frequency power is modulated by a first waveform having a first period and a second period adjacent to the first period, and the second radio frequency power supply is modulated by a second waveform having a period A and a period B, control the second radio frequency power supply such that each second radio frequency power in the period A is supplied in the first period and the second period, in which an amplitude in the second period is smaller than an amplitude in the first period, and an amplitude in the period A is larger than an amplitude in the period B.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: June 11, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Norihiko Ikeda, Kazuya Yamada
  • Patent number: 11978612
    Abstract: A plasma processing apparatus includes a processing chamber in which a sample is subjected to plasma processing, a first radio frequency power supply that supplies radio frequency power for generating plasma, a sample stage on which the sample is mounted, and a second radio frequency power supply that supplies radio frequency power to the sample stage, the plasma processing apparatus further includes a DC power supply that applies a DC voltage, that is changed according to a periodically repeated waveform, to the sample stage, and the waveform of one cycle has a period in which amplitude changes by a predetermined amount or more during a predetermined time. Accordingly, charged particles on a wafer surface are removed, a trench shape with high verticality can be obtained, and damage to a film that is not to be etched inside a trench can be reduced.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: May 7, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Isao Mori, Masaru Izawa, Naoki Yasui, Norihiko Ikeda, Kazuya Yamada
  • Publication number: 20240105565
    Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction; a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.
    Type: Application
    Filed: December 11, 2023
    Publication date: March 28, 2024
    Applicant: LAPIS Semiconductor Co., Ltd.
    Inventors: Toshihisa SONE, Kazuya YAMADA, Akihiro TAKEI, Yuichi YOSHIDA, Kengo TAKEMASA
  • Publication number: 20240014007
    Abstract: A plasma processing apparatus includes: a processing chamber; a first radio frequency power supply configured to supply a first radio frequency power; a second radio frequency power supply configured to supply a second radio frequency power; and a control device configured to, when the first radio frequency power is modulated by a first waveform having a first period and a second period adjacent to the first period, and the second radio frequency power supply is modulated by a second waveform having a period A and a period B, control the second radio frequency power supply such that each second radio frequency power in the period A is supplied in the first period and the second period, in which an amplitude in the second period is smaller than an amplitude in the first period, and an amplitude in the period A is larger than an amplitude in the period B.
    Type: Application
    Filed: August 27, 2020
    Publication date: January 11, 2024
    Inventors: Norihiko Ikeda, Kazuya Yamada
  • Patent number: 11854952
    Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction; a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: December 26, 2023
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventors: Toshihisa Sone, Kazuya Yamada, Akihiro Takei, Yuichi Yoshida, Kengo Takemasa
  • Publication number: 20230372262
    Abstract: Provided is a composition for the treatment of vascular disease, for the prevention of vascular disease, for the treatment of hypertension or for the prevention of hypertension, comprising caryophyllene.
    Type: Application
    Filed: November 1, 2021
    Publication date: November 23, 2023
    Inventors: Nobuhiro ZAIMA, Chihiro KISHI, Yuki TAKEMOTO, Shinichi MATSUMURA, Yuri YOSHIOKA, Kohei IWAMOTO, Shohei MAKINO, Kazuya YAMADA, Takanori KOBAYASHI
  • Publication number: 20230200435
    Abstract: Provided are a novel agent or composition and others. The agent or composition comprises caryophyllene and is used for at least one selected from the following (purposes) (1) to (3) : (1) promoting relaxation, prolonging a resting-state time, and/or prolonging a motionless time, (2) promoting sleep, and (3) preventing blood pressure elevation. The present invention also relates to a method for inhaling ?-caryophyllene simultaneously with smoking a tobacco product, characterized in that the tobacco product contains a ?-caryophyllene-containing seamless capsule in a tobacco filter, wherein the seamless capsule contains an essential oil containing ?-caryophyllene as an active ingredient. The applicants found that pulmonary inhalation of ?-caryophyllene by the above method allows ?-caryophyllene to be efficiently distributed throughout the body, leading to achievements of relaxing and sleep-inducing effects, etc.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 29, 2023
    Applicants: KINKI UNIVERSITY, INABATA KORYO CO., LTD., SUNSHO PHARMACEUTICAL CO., LTD.
    Inventors: Nobuhiro ZAIMA, Yuri YOSHIOKA, Shinichi MATSUMURA, Kohei IWAMOTO, Kazuya YAMADA, Takanori KOBAYASHI
  • Patent number: 11680628
    Abstract: In the ball screw device, the circulation path that returns balls from the end point to the start point of the load path includes a return path, scooping paths, and connecting paths. The scooping path has an arc-shaped center line that is curved outward in the radial direction as going toward the reference imaginary flat plane including the center axis of the screw shaft and the center line of the return path in the circumferential direction. The connecting path is arranged on the reference imaginary flat plane and includes a straight path having a linear center line extending in a direction orthogonal to the center axis of the screw shaft. When the radius of curvature of the center line of the scooping path is R1, the scooping angle is ?, and the entire length of the straight path is S, R1 cos(90°??)+S is made larger than the diameter of the balls.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: June 20, 2023
    Assignee: NSK LTD.
    Inventors: Kazuya Yamada, Yuji Shimomura, Kanta Sato, Yasuaki Abe
  • Patent number: 11662003
    Abstract: A ball screw device has a screw shaft; a nut; a circulation part; and balls; a housing concave groove provided on the outer circumferential surface of the nut and linearly extending in the axial direction and opening to end surfaces on both outer sides in the axial direction of the nut, a circulation part arranged inside the housing concave groove, and the circulation part being prevented from displacing toward the outer side in the radial direction and displacing in the circumferential direction with respect to the nut by engaging an engaging convex portion of a fixing portion provided in the end portion on each of both outer sides in the axial direction of the circulation part with an engaging recess portion provided in the end portion of each of both outer sides in the axial direction of the housing concave groove.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: May 30, 2023
    Assignee: NSK LTD.
    Inventors: Kazuya Yamada, Yuji Shimomura, Yasuaki Abe, Kanta Sato
  • Publication number: 20230133580
    Abstract: An object of the present invention is to provide is a novel composition and others. The composition comprises l-menthol and at least one ingredient (X) selected from dicarboxylic acid esters, diol esters, monocarboxylic acid esters, esters of polyols having three or more hydroxy groups, esters of polycarboxylic acids having three or more carboxyl groups, polyol ethers, polyamines, and alcohols having six or more carbon atoms.
    Type: Application
    Filed: March 30, 2021
    Publication date: May 4, 2023
    Applicant: SUNSHO PHARMACEUTICAL CO., LTD.
    Inventors: Kazuya YAMADA, Tomoya SUZUKI, Masakazu ITO, Kouichi DOBASHI
  • Publication number: 20230087898
    Abstract: In the ball screw device, the circulation path that returns balls from the end point to the start point of the load path includes a return path, scooping paths, and connecting paths. The scooping path has an arc-shaped center line that is curved outward in the radial direction as going toward the reference imaginary flat plane including the center axis of the screw shaft and the center line of the return path in the circumferential direction. The connecting path is arranged on the reference imaginary flat plane and includes a straight path having a linear center line extending in a direction orthogonal to the center axis of the screw shaft. When the radius of curvature of the center line of the scooping path is R1, the scooping angle is ?, and the entire length of the straight path is S, R1 cos(90°??)+S is made larger than the diameter of the balls.
    Type: Application
    Filed: March 10, 2021
    Publication date: March 23, 2023
    Applicant: NSK LTD.
    Inventors: Kazuya YAMADA, Yuji SHIMOMURA, Kanta SATO, Yasuaki ABE
  • Publication number: 20230058692
    Abstract: A plasma processing apparatus includes a processing chamber in which a sample is subjected to plasma processing, a first radio frequency power supply that supplies radio frequency power for generating plasma, a sample stage on which the sample is mounted, and a second radio frequency power supply that supplies radio frequency power to the sample stage, the plasma processing apparatus further includes a DC power supply that applies a DC voltage, that is changed according to a periodically repeated waveform, to the sample stage, and the waveform of one cycle has a period in which amplitude changes by a predetermined amount or more during a predetermined time. Accordingly, charged particles on a wafer surface are removed, a trench shape with high verticality can be obtained, and damage to a film that is not to be etched inside a trench can be reduced.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 23, 2023
    Inventors: Isao Mori, Masaru Izawa, Naoki Yasui, Norihiko Ikeda, Kazuya Yamada
  • Publication number: 20230054731
    Abstract: An array type semiconductor laser device includes: a second electrode (p-electrode) disposed on another conductivity type semiconductor layer; a third electrode (n-electrode) disposed on a one conductivity type semiconductor layer and between a first electrode (p-electrode) and the second electrode; a fifth electrode (n-electrode) disposed on the one conductivity type semiconductor layer and between the third electrode and the second electrode; a sixth electrode (n-electrode) disposed on the one conductivity type semiconductor layer and across from the fifth electrode; a first conductor (wire) that electrically connects the second electrode and the third electrode; and a second conductor (n-wiring) that electrically connects the fifth electrode and the sixth electrode.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 23, 2023
    Inventors: Tohru NISHIKAWA, Mitsuru NISHITSUJI, Kazuya YAMADA, Masayuki HATA
  • Publication number: 20230015290
    Abstract: A ball screw device has a screw shaft; a nut; a circulation part; and balls; a housing concave groove provided on the outer circumferential surface of the nut and linearly extending in the axial direction and opening to end surfaces on both outer sides in the axial direction of the nut, a circulation part arranged inside the housing concave groove, and the circulation part being prevented from displacing toward the outer side in the radial direction and displacing in the circumferential direction with respect to the nut by engaging an engaging convex portion of a fixing portion provided in the end portion on each of both outer sides in the axial direction of the circulation part with an engaging recess portion provided in the end portion of each of both outer sides in the axial direction of the housing concave groove.
    Type: Application
    Filed: March 12, 2021
    Publication date: January 19, 2023
    Applicant: NSK Ltd.
    Inventors: Kazuya YAMADA, Yuji SHIMOMURA, Yasuaki ABE, Kanta SATO
  • Patent number: 11541450
    Abstract: To provide a method of manufacturing a shaft for a steering device, the shaft including a spline shaft part to be coupled with an input shaft, a stopper part to be coupled with an output shaft, and an intermediate shaft part that couples the spline shaft part with the stopper part. The method includes: a step of forming a hole part recessed in an axial direction from one end of a pillar-shaped material by forging; and a step of pressing the material in which the hole part has been formed into a die to perform drawing in a radial direction on a portion of the material at which the spline shaft part and the intermediate shaft part are formed, and prolonging a length along the axial direction of the hole part at the same time by forging.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: January 3, 2023
    Assignee: NSK LTD.
    Inventors: Tatsuya Suehiro, Kaname Yasuda, Kazuya Yamada
  • Publication number: 20220389598
    Abstract: To enable stable and efficient production of hydrogen. A hydrogen production apparatus according to an embodiment includes an electrolytic unit and an electrolysis power controller. The electrolytic unit produces hydrogen by electrolyzing steam using electric power supplied from an electric power source. The electrolysis power controller controls the supply of electric power from the electric power source to the electrolytic unit. Here, the electrolysis power controller determines whether an unsupplied time during which electric power from the electric power source to the electrolytic unit is not supplied exceeds a predetermined set time, and starts the supply of electric power from the electric power source to the electrolytic unit when the unsupplied time exceeds the set time.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 8, 2022
    Inventors: Naomi TSUCHIYA, Hirofumi OKABE, Kazuya YAMADA
  • Publication number: 20220275847
    Abstract: This shock absorber includes a piston main body and a piston band. The piston main body has, at an outer peripheral portion thereof, a stepped portion including a large-diameter surface portion, a stepped surface portion and a small-diameter surface portion. The piston band has, at an outer peripheral portion thereof, a large diameter portion, a medium diameter portion formed so as to have a smaller diameter than the large diameter portion, and a small diameter portion formed between the large diameter portion and the medium diameter portion so as to have a smaller diameter than the medium diameter portion, in a state before being disposed in a cylinder. At one end on the side close to a tip portion of a piston rod, an inner peripheral surface is inclined toward the piston main body side from the large-diameter surface portion to a small-diameter surface portion of the stepped portion.
    Type: Application
    Filed: September 25, 2020
    Publication date: September 1, 2022
    Inventors: Kazuya YAMADA, Kentaro YAMADA, Reiji NAKAGAWA, Hiroyasu SATO, Sadatomo MATSUMURA, Wataru TAKAGI
  • Patent number: 11424105
    Abstract: A plasma processing apparatus includes a processing chamber in which a sample is subjected to plasma processing, a first radio frequency power supply that supplies radio frequency power for generating plasma, a sample stage on which the sample is mounted, and a second radio frequency power supply that supplies radio frequency power to the sample stage, the plasma processing apparatus further includes a DC power supply that applies a DC voltage, that is changed according to a periodically repeated waveform, to the sample stage, and the waveform of one cycle has a period in which amplitude changes by a predetermined amount or more during a predetermined time. Accordingly, charged particles on a wafer surface are removed, a trench shape with high verticality can be obtained, and damage to a film that is not to be etched inside a trench can be reduced.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 23, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Isao Mori, Masaru Izawa, Naoki Yasui, Norihiko Ikeda, Kazuya Yamada
  • Publication number: 20220223505
    Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction; a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Applicant: LAPIS Semiconductor Co., Ltd.
    Inventors: Toshihisa SONE, Kazuya YAMADA, Akihiro TAKEI, Yuichi YOSHIDA, Kengo TAKEMASA
  • Patent number: 11383757
    Abstract: A shaft for a steering device has a first portion, a second portion, and a third portion that is a shaft integrated with the first portion and the second portion and couples the first portion and the second portion in a first direction. The outer diameter of the third portion is smaller than the length of the second portion in a second direction intersecting with the first direction, and is constant across a direction extending along the first direction. The hardness of the third portion is greater than the hardness of the second portion, and is constant across the direction extending along the first direction.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: July 12, 2022
    Assignee: NSK LTD.
    Inventors: Kaname Yasuda, Tatsuya Suehiro, Kazuya Yamada