Patents by Inventor Tsuyoshi Takeda

Tsuyoshi Takeda 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: 10896810
    Abstract: To provide a RF generating apparatus that enables apparatus size to be decreased and the cost reduced thereby while also improving power efficiency by performing a stable matching operation, and to provide a plasma treatment apparatus using said apparatus. This RF generating apparatus comprises a plurality of RF generators and matching units, the matching units being provided with only variable-capacity capacitors connected in parallel, thereby reducing the number of elements in terms of the variable-capacity capacitors. A matching calculation section for the RF generators determines, on the basis of traveling waves and reflection waves detected by a detection circuit, the capacity values of the variable-capacity capacitors for the matching units, while adjusting and determining the oscillation frequencies for oscillation circuits in the RF generators so as to decrease the level of the reflection waves. The plasma treatment apparatus uses this RF generating apparatus.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 19, 2021
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshiyuki Oshida, Naoya Fujimoto, Norikazu Kato, Takeshi Okada, Tsuyoshi Takeda
  • Patent number: 10796934
    Abstract: According to one aspect of the technique described herein, there is provided a technique including: a reaction tube defining a processing chamber wherein a substrate is processed; an electrode provided at an outer circumferential surface of the reaction tube and configured to generate plasma in the process chamber; an electrode fixing part configured to fix the electrode thereto; a heater provided at an outer circumferential surface of the electrode fixing part and configured to heat an inside of the reaction tube; and a spacer configured to provide a predetermined gap between the electrode and a surface of the electrode fixing part.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 6, 2020
    Assignee: Kokusai Electric Corporation
    Inventors: Tsuyoshi Takeda, Tatsuya Nishino, Takashi Yahata
  • Publication number: 20200312632
    Abstract: There is provided a technique that includes: a reaction tube configured to process a plurality of substrates; a substrate support configured to support the plurality of substrates stacked in multiple stages; a buffer chamber that is at least located at a position of height from a lowermost substrate to an uppermost substrate supported by the substrate support, and is installed along an inner wall of the reaction tube; and an electrode for plasma generation that is inserted from a lower portion of the buffer chamber into an upper portion of the buffer chamber through a side surface of the reaction tube, the electrode being configured to activate the processing gas by plasma inside the buffer chamber thereby applying high-frequency power to the electrode by a power supply.
    Type: Application
    Filed: March 11, 2020
    Publication date: October 1, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Daisuke HARA, Takashi YAHATA, Tsuyoshi TAKEDA, Kenji ONO, Kazuhiko YAMAZAKI
  • Patent number: 10774421
    Abstract: A substrate processing apparatus includes: a reaction tube with a process chamber defined therein, the process chamber being configured to process a substrate; a heating device configured to heat the process chamber; a gas supply part configured to supply a process gas used in processing the substrate; and a plasma generating part including an electrode composed of a first electrode portion connected to a high frequency power supply and a second electrode portion grounded to the earth, which are installed to surround the entire circumference of an outer wall of the reaction tube. An inter-electrode distance between the first electrode portion and the second electrode portion is determined by at least a frequency of the high frequency power supply and a voltage applied across the electrode. The first and second electrode portions are installed based on the determined inter-electrode distance.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 15, 2020
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Tsuyoshi Takeda
  • Patent number: 10679831
    Abstract: Described herein is a technique capable of uniformly processing substrates. According to the technique described herein, there is provided a substrate processing apparatus including: a process chamber where a substrate is processed; a gas supply configured to supply a gas into the process chamber; a plasma generator configured to plasma-excite the gas supplied into the process chamber, the plasma generator including an electrode electrically connected to a high frequency power source; an impedance meter configured to measure an impedance of the plasma generator; a determiner configured to determine an amount of active species generated by the plasma generator based on the impedance measured by the impedance meter; and a controller configured to control the high frequency power source based on the amount of active species determined by the determiner.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: June 9, 2020
    Assignee: KOKUSIA ELECTRIC CORPORATION
    Inventor: Tsuyoshi Takeda
  • Publication number: 20200176261
    Abstract: There is provided a technique that includes: imaging a gas supply hole configured to supply a plasma-converted gas into a process chamber by using an imaging device disposed in the process chamber; detecting a plasma emission intensity based on an image of the imaged gas supply hole; and determining at least one of whether abnormal plasma discharge has occurred and whether plasma flickering has occurred based on the detected plasma emission intensity.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tsuyoshi TAKEDA, Tatsuya NISHINO
  • Publication number: 20200173027
    Abstract: There is provided a technique that includes: high-frequency power sources supplying power to plasma generators; and matchers installed between the high-frequency power sources and the plasma generators and matching load impedances of the plasma generators with output impedances of the high-frequency power sources, wherein at least one of the high-frequency power sources includes: a high-frequency oscillator; a directional coupler at a subsequent stage of the high-frequency oscillator, which extracts a part of a traveling wave component from the high-frequency oscillator and a part of a reflected wave component from the matcher; a filter removing a noise signal in the reflected wave component extracted by the directional coupler; and a power monitor measuring the reflected wave component after passing through the filter and the traveling wave component extracted by the directional coupler and feedback-controlling the matcher to reduce a ratio between the reflected wave component and the traveling wave componen
    Type: Application
    Filed: February 6, 2020
    Publication date: June 4, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventor: Tsuyoshi TAKEDA
  • Publication number: 20200118797
    Abstract: To provide a RF generating apparatus that enables apparatus size to be decreased and the cost reduced thereby while also improving power efficiency by performing a stable matching operation, and to provide a plasma treatment apparatus using said apparatus. This RF generating apparatus comprises a plurality of RF generators and matching units, the matching units being provided with only variable-capacity capacitors connected in parallel, thereby reducing the number of elements in terms of the variable-capacity capacitors. A matching calculation section for the RF generators determines, on the basis of traveling waves and reflection waves detected by a detection circuit, the capacity values of the variable-capacity capacitors for the matching units, while adjusting and determining the oscillation frequencies for oscillation circuits in the RF generators so as to decrease the level of the reflection waves. The plasma treatment apparatus uses this RF generating apparatus.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Yoshiyuki OSHIDA, Naoya FUJIMOTO, Norikazu KATO, Takeshi OKADA, Tsuyoshi TAKEDA
  • Publication number: 20200083067
    Abstract: There is provided a technique, which includes: a reaction tube configured to form a process chamber in which a substrate is processed; an electrode fixing jig installed outside the reaction tube and configured to fix at least two electrodes for forming plasma in the process chamber; and a heating device installed outside the electrode fixing jig and configured to heat the reaction tube, wherein the at least two electrodes include at least one electrode to which a predetermined potential is applied and at least one electrode to which a reference potential is applied, and wherein a surface area of the at least one electrode to which the predetermined potential is applied is two times or more than a surface area of the at least one electrode to which the reference potential is applied.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 12, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tsuyoshi TAKEDA, Daisuke HARA
  • Patent number: 10559837
    Abstract: A fluid control valve is connected to a wet gas flow passage in order to control a flow of a wet gas, and includes an introduction passage for introducing the wet gas into the fluid control valve, a filter including mesh for removing foreign matter contained in the wet gas flowing through the introduction passage, a discharge passage that includes a valve port disposed above the introduction passage and discharges the wet gas that has passed through the filter from the fluid control valve through the valve port, and a valve portion that opens and closes the valve port using a valve body. In this fluid control valve, the filter is disposed in a lowermost portion of the introduction passage.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: February 11, 2020
    Assignees: NISSAN MOTOR CO., LTD., KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventors: Takatada Usami, Tsuyoshi Takeda, Ichiro Okawara
  • Patent number: 10494506
    Abstract: Provided is a flame-retardant polyolefin resin composition, which contains 1 to 100 parts by weight of an organic phosphorus compound (component B) represented by the following formula (1) per 100 parts by weight of the polyolefin resin (component A), realizing high flame retardancy, high heat resistance and excellent physical properties. wherein X1 and X2, which may be the same or different, are aromatic-substituted alkyl groups, represented by the following formula (2): ALAr)n??(2) wherein AL is a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar is a phenyl group, a naphthyl group, or an anthryl group optionally having a substituent in an aromatic ring, n represents an integer of 1 to 3, and Ar can be bonded to any carbon atom in AL.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 3, 2019
    Assignee: TEIJIN LIMITED
    Inventors: Katsuhiro Yamanaka, Tsuyoshi Takeda
  • Patent number: 10363521
    Abstract: [Problem] The object of the invention is to provide the filter device disposed in the moist fluid passage of the fuel cell system in that, water is not adhered and never remains in the filter and when leaving it under the low temperature after the system stops, blockage by freezing the filter can surely be prevented, and the complex control and the heat source such as heaters for the decompression as conventional is unnecessary, and the filter device is cheap and compact.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 30, 2019
    Assignee: KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventors: Tsuyoshi Takeda, Kazuhiko Osawa, Daisaku Inamura, Ichiro Okawara, Takatada Usami, Shinichiro Takemoto
  • Publication number: 20190206705
    Abstract: According to one aspect of the technique described herein, there is provided a technique including: a reaction tube defining a processing chamber wherein a substrate is processed; an electrode provided at an outer circumferential surface of the reaction tube and configured to generate plasma in the process chamber; an electrode fixing part configured to fix the electrode thereto; a heater provided at an outer circumferential surface of the electrode fixing part and configured to heat an inside of the reaction tube; and a spacer configured to provide a predetermined gap between the electrode and a surface of the electrode fixing part.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Inventors: Tsuyoshi TAKEDA, Tatsuya NISHINO, Takashi YAHATA
  • Publication number: 20190160567
    Abstract: A wire electric discharge machining apparatus includes: a processing tank, a lower-side wire guide assembly, a lower arm, a direction changing pulley, a winding roller, and a conveying device. The conveying device comprises a high-pressure jet flow generator and a suction pipe. The high-pressure jet flow generator is provided between the direction changing pulley and the winding roller on a side of a front end of a lower arm, and spouts a high-pressure jet flow toward a direction of the winding roller so that a wire electrode is guided only by a restraining force of the high-pressure jet flow and sent flying to the direction of the winding roller with the high-pressure jet flow. The suction pipe is provided on an exit side of the winding roller, and sucks and captures a tip of the wire electrode sent by the high-pressure jet flow.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Applicant: SODICK CO., LTD.
    Inventors: Masashi SAKAGUCHI, Tsuyoshi TAKEDA, Tsubasa KURAGAYA
  • Publication number: 20190157049
    Abstract: There is provided a plasma generating device that includes a first electrode connected to a high-frequency power supply, and a second electrode to be grounded, wherein the first electrode and the second electrode are alternately arranged such that a number of electrodes of the first electrode and the second electrode are in an odd number of three or more in total, and wherein the second electrode is used in common for two of the first electrode being respectively adjacent to the second electrode used in common.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Akihiro SATO, Tsuyoshi TAKEDA, Yukitomo HIROCHI
  • Patent number: 10294351
    Abstract: A flameproofing agent for fibers which has high flameproofness and excellent physical properties (light resistance, heat resistance, texture), a process for manufacturing a flameproof fiber product and a flameproof fiber product. The flameproofing agent comprises an organic phosphorus compound (component A) represented by the following formula (1). (In the above formula, X1 and X2 are the same or different and each an aromatic substituted alkyl group represented by the following formula (2).) ALAr)n??(2) (In the above formula, AL is a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar is a phenyl group, naphthyl group or anthryl group all of which may have a substituent, ā€œnā€ is an integer of 1 to 3, and Ar may be bonded to any carbon atom contained in AL.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 21, 2019
    Assignees: TEIJIN LIMITED, MARUBISHI OIL CHEMICAL CO., LTD.
    Inventors: Katsuhiro Yamanaka, Tsuyoshi Takeda, Kuniaki Kondo, Masaki Haruyoshi
  • Patent number: 10153132
    Abstract: Described herein is a technique capable of suppressing the effects of plasma on a film or a structure formed on a substrate. According to the technique, electrode for generating plasma includes protrusion provided with gas flow path inserted in holes of showerhead to uniformly supply gas in plasma state toward a substrate.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 11, 2018
    Assignee: Kokusai Electric Corporation
    Inventor: Tsuyoshi Takeda
  • Patent number: 10138355
    Abstract: A flame retardant resin composition containing 1 to 100 parts by weight of (B) an organophosphorus compound (component B) represented by the following formula (1) per 100 parts by weight of (A) a resin component (component A) containing at least 60 wt % of an acrylic resin has high flame retardancy, high transparency and satisfactory physical properties: wherein X1 and X2 are the same or different, and represent alkyl groups substituted with aromatic groups represented by the following formula (2): ALAr)n??(2) wherein AL represents a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar represents a phenyl group, a naphthyl group, or an anthryl group each optionally substituted, n represents an integer of 1 to 3, and Ar can be bonded to any carbon atom in AL.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 27, 2018
    Assignee: TEIJIN LIMITED
    Inventors: Katsuhiro Yamanaka, Tsuyoshi Takeda, Kenta Imazato
  • Patent number: 10128128
    Abstract: A method of manufacturing a semiconductor device includes: (a) loading into a process chamber a substrate including: a wiring layer including a first interlayer insulating film, a plurality of copper-containing films formed on the first interlayer insulating film and used as a wiring, an inter-wire insulating film electrically insulating the plurality of copper containing film and a recess formed between the plurality of copper-containing film; and a first diffusion barrier film formed on a first portion of a surface of the plurality of copper-containing films to suppress a diffusion of a component of the plurality of copper-containing film; and (b) supplying a silicon-containing gas into the process chamber to form a silicon-containing film on: a surface of the recess; and a second portion of the surface of the plurality of copper-containing films other than the first portion where the first diffusion barrier film is formed.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: November 13, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tsuyoshi Takeda, Hiroshi Ashihara, Naofumi Ohashi, Toshiyuki Kikuchi
  • Patent number: D835677
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: December 11, 2018
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Tsuyoshi Takeda, Taiki Nakagawa, Shohei Ozeki