Patents by Inventor Takuya Yamada

Takuya 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).

  • Publication number: 20230313767
    Abstract: An intake system of an engine including an intake manifold, which includes an intake air introducing pipe and a plurality of independent intake pipes, is provided. Each of the independent intake pipes has an arc shape surrounding the intake air introducing pipe from outside with a space. A first independent intake pipe is curved more in the cylinder lined-up direction than a second. From the side in the cylinder lined-up direction, the arc shape of the second independent intake pipe is more distant from the intake air introducing pipe. To a first member constituting part of the intake air introducing pipe, a second member is joined to form the arc shape of the first independent intake pipe. A third member disposed radially outward from the first member is joined to the second member to form the arc shape of the second independent intake pipe.
    Type: Application
    Filed: March 23, 2023
    Publication date: October 5, 2023
    Inventors: Ken Yoshida, Hiroyuki Ohmura, Shinsuke Fujita, Takuya Yamada, Shintaro Umesaki
  • Publication number: 20230260991
    Abstract: Provided is a semiconductor device in which one mesa portion of two mesa portions in contact with a gate trench portion is an active mesa portion in which an emitter region of a first conductivity type having a doping concentration higher than that of a drift region is arranged in contact with the gate trench portion, the other mesa portion of two mesa portions in contact with the gate trench portion is a dummy mesa portion having no emitter region, and a dummy contact resistance which is a resistance of the dummy mesa portion and an emitter electrode is 1000 times or more as high as an active contact resistance which is a resistance of the active mesa portion and the emitter electrode.
    Type: Application
    Filed: December 20, 2022
    Publication date: August 17, 2023
    Inventors: Yosuke SAKURAI, Akio YAMANO, Seiji NOGUCHI, Ryutaro HAMASAKI, Takuya YAMADA, Daisuke OZAKI
  • Publication number: 20230261097
    Abstract: Provided is a semiconductor device including: a first trench contact portion provided to an inside of a contact region; a second trench contact portion provided to an inside of an emitter region; a first plug portion of a second conductivity type, which is provided in contact with a lower end of the first trench contact portion and has a higher concentration than a base region; and a second plug portion of a second conductivity type, which is provided in contact with a lower end of the second trench contact portion, is provided to a position closer to a lower surface than the first plug portion, and has a higher concentration than the base region.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 17, 2023
    Inventors: Seiji NOGUCHI, Ryutaro HAMASAKI, Daisuke OZAKI, Yosuke SAKURAI, Takuya YAMADA
  • Publication number: 20230124922
    Abstract: Provided is a semiconductor device comprising a semiconductor substrate, the semiconductor substrate comprising an active portion, a second conductivity type circumferential well region surrounding the active portion in a top view, and a trench portion provided in the active portion on an upper surface of the semiconductor substrate, wherein the active portion includes a center portion including a first conductivity type emitter region, and a circumferential portion surrounding the center portion, wherein the center portion includes a second conductivity type active side bottom region provided across bottoms of at least two of the trench portion, the circumferential portion includes a second conductivity type circumferential side bottom region electrically connected to the circumferential well region, facing the active side bottom region, and provided at the bottom of the trench portion, and the active side bottom region and the circumferential side bottom region are provided apart from each other.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Daisuke OZAKI, Seiji NOGUCHI, Yosuke SAKURAI, Ryutaro HAMASAKI, Takuya YAMADA, Yoshihiro IKURA
  • Patent number: 11560866
    Abstract: Removal and breakage of fuel piping during a vehicle front collision is prevented for an engine mounted longitudinally in an engine compartment. Embodiments include a side structure of the engine having an alternator in front of an intake manifold and fuel piping behind the intake manifold so as to extend in the vertical direction. The intake manifold includes a plurality of independent intake pipe portions each having one end portion connected to one side of the engine in a vehicle width direction, and a surge tank portion to which the other end portions of the independent intake pipe portions are connected. As seen from the rear side, a portion of the fuel piping closer to the surge tank portion is located closer to the one side of the engine in the vehicle width direction than the surge tank portion.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: January 24, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masayuki Furutani, Takuya Yamada
  • Patent number: 11549470
    Abstract: Interference between an intake manifold and a fuel pipe during a vehicle front collision is prevented in an engine which is longitudinally mounted in an engine room. A vehicle component is arranged on the front side of an intake manifold, and a fuel pipe is arranged on the rear side of the intake manifold. The intake manifold includes a mounting portion on the intake-air downstream end side of a plurality of independent intake pipe portions and connects each of the plurality of independent intake pipe portions to a portion of the engine on one side of the engine in the vehicle width direction. The mounting portion has a front-side mounting portion relatively positioned on the front side and a rear-side mounting portion relatively positioned on the rear side, and the rear-side mounting portion has a higher rigidity than the front-side mounting portion.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: January 10, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masayuki Furutani, Akira Ichigi, Masahiro Nishioka, Takuya Yamada
  • Publication number: 20220381208
    Abstract: Interference between an intake manifold and a fuel pipe during a vehicle front collision is prevented in an engine which is longitudinally mounted in an engine room. A vehicle component is arranged on the front side of the intake manifold, and the fuel pipe is arranged on the rear side of the intake manifold. The intake manifold includes a plurality of independent intake pipe portions arranged side by side in the vehicle front-rear direction which branch for each of the cylinders of the engine; and a plurality of coupling portions that each couple adjacent independent intake pipe portions to each other in an integral manner A first coupling portion of the plurality of coupling portions positioned on the frontmost side has a lower rigidity than a third coupling portion of the plurality of coupling portions positioned the rearmost side.
    Type: Application
    Filed: May 16, 2022
    Publication date: December 1, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masayuki FURUTANI, Akira ICHIGI, Masahiro NISHIOKA, Takuya YAMADA
  • Publication number: 20220381206
    Abstract: Interference between an intake manifold and a fuel pipe during a vehicle front collision is prevented in an engine which is longitudinally mounted in an engine room. A vehicle component is arranged on the front side of an intake manifold, and a fuel pipe is arranged on the rear side of the intake manifold. The intake manifold includes a mounting portion on the intake-air downstream end side of a plurality of independent intake pipe portions and connects each of the plurality of independent intake pipe portions to a portion of the engine on one side of the engine in the vehicle width direction. The mounting portion has a front-side mounting portion relatively positioned on the front side and a rear-side mounting portion relatively positioned on the rear side, and the rear-side mounting portion has a higher rigidity than the front-side mounting portion.
    Type: Application
    Filed: May 16, 2022
    Publication date: December 1, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masayuki FURUTANI, Akira ICHIGI, Masahiro NISHIOKA, Takuya YAMADA
  • Publication number: 20220381207
    Abstract: Removal and breakage of fuel piping during a vehicle front collision is prevented for an engine mounted longitudinally in an engine compartment. Embodiments include a side structure of the engine having an alternator in front of an intake manifold and fuel piping behind the intake manifold so as to extend in the vertical direction. The intake manifold includes a plurality of independent intake pipe portions each having one end portion connected to one side of the engine in a vehicle width direction, and a surge tank portion to which the other end portions of the independent intake pipe portions are connected. As seen from the rear side, a portion of the fuel piping closer to the surge tank portion is located closer to the one side of the engine in the vehicle width direction than the surge tank portion.
    Type: Application
    Filed: May 16, 2022
    Publication date: December 1, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masayuki FURUTANI, Takuya YAMADA
  • Patent number: 11499509
    Abstract: An exhaust gas recirculation system for a multi-cylinder engine is provided, which includes an exhaust manifold connected to a cylinder head, a catalyst connected to a downstream end of the exhaust manifold in terms of an exhaust gas flow, an EGR gas outlet provided downstream of the catalyst, an in-head EGR passage penetrating the cylinder head, and an EGR pipe extending from the EGR gas outlet and directly connected to an inlet of the in-head EGR passage to lead EGR gas thereto. The catalyst is disposed so that the exhaust gas flows therein from a first side to a second side in an engine cylinder lined-up direction. The EGR gas outlet is located on the second side with respect to the center of the engine in the cylinder lined-up direction, and the inlet of the in-head EGR passage is located in the first side with respect to the engine center.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: November 15, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Tomonori Nishida, Yuji Kojima, Noriaki Fujita, Ken Yoshida, Takashi Kariya, Takayuki Tominaga, Naoya Matsumoto, Yusaku Matsumura, Yuki Koda, Takuya Nishihara, Hiroyuki Ohmura, Arashi Imura, Fusatoshi Tanaka, Takuya Yamada, Shintaro Umesaki
  • Publication number: 20220128019
    Abstract: An exhaust gas recirculation system for a multi-cylinder engine is provided, which includes an exhaust manifold connected to a cylinder head, a catalyst connected to a downstream end of the exhaust manifold in terms of an exhaust gas flow, an EGR gas outlet provided downstream of the catalyst, an in-head EGR passage penetrating the cylinder head, and an EGR pipe extending from the EGR gas outlet and directly connected to an inlet of the in-head EGR passage to lead EGR gas thereto. The catalyst is disposed so that the exhaust gas flows therein from a first side to a second side in an engine cylinder lined-up direction. The EGR gas outlet is located on the second side with respect to the center of the engine in the cylinder lined-up direction, and the inlet of the in-head EGR passage is located in the first side with respect to the engine center.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 28, 2022
    Inventors: Tomonori Nishida, Yuji Kojima, Noriaki Fujita, Ken Yoshida, Takashi Kariya, Takayuki Tominaga, Naoya Matsumoto, Yusaku Matsumura, Yuki Koda, Takuya Nishihara, Hiroyuki Ohmura, Arashi Imura, Fusatoshi Tanaka, Takuya Yamada, Shintaro Umesaki
  • Publication number: 20220108032
    Abstract: A document management apparatus includes: a processor configured to: acquire a first term that is contained in a document, the first term being specific to an organization to which a user belongs; acquire second terms of which the user has knowledge, the second terms being specific to the organization; and compare the first term and the second terms so as to control an access right of the user to the document.
    Type: Application
    Filed: May 4, 2021
    Publication date: April 7, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventor: Takuya YAMADA
  • Patent number: 11280301
    Abstract: An intake device of an engine comprises an intercooler, an intake passage including a downstream-side intake passage, and an EGR passage recirculating exhaust gas to the downstream-side intake passage. An intake-air supply opening having an opening area smaller than an area of a downstream-side face of an intercooler core is provided at a downstream side wall of a chamber. The downstream-side intake passage includes an extension passage portion extending upwardly along the downstream side wall. The intake-air supply opening includes an upper edge portion which separates the intake air flowing from an inside wall face of the extension passage portion and forms flowing main streams of the intake air inside the extension passage portion. EGR introduction ports are arranged at positions capable of supplying the EGR gas toward the flowing main streams.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: March 22, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yoshihiro Hamazume, Takashi Yoshikawa, Jiro Kato, Taketoshi Yamauchi, Hirofumi Shinohara, Kazuhiro Nakamura, Yoko Inami, Shouichi Aiga, Tomoaki Fujiyama, Kosuke Miyamoto, Takuya Yamada
  • Patent number: 11186459
    Abstract: A medium cutting device according to an embodiment may include: a fixed blade provided on one side with respect to a conveyance path in which a medium is conveyed in a thickness direction of the medium orthogonal to a surface of the medium and including a cutting edge thereof; a rotary blade provided on the other side with respect to the conveyance path in the thickness direction, and including a cutting edge thereof, wherein the rotary blade is configured to be rotated in a rotation direction so that the cutting edge of the rotary blade passes by the cutting edge of the fixed blade to cut at a cutting position the medium being conveyed; and a guide member provided upstream of the cutting position in a conveyance direction of the medium and configured to bias the medium toward the rotary blade side.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 30, 2021
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Takuya Yamada, Naoki Kanzawa
  • Publication number: 20210222653
    Abstract: An intake device of an engine comprises an intercooler, an intake passage including a downstream-side intake passage, and an EGR passage recirculating exhaust gas to the downstream-side intake passage. An intake-air supply opening having an opening area smaller than an area of a downstream-side face of an intercooler core is provided at a downstream side wall of a chamber. The downstream-side intake passage includes an extension passage portion extending upwardly along the downstream side wall. The intake-air supply opening includes an upper edge portion which separates the intake air flowing from an inside wall face of the extension passage portion and forms flowing main streams of the intake air inside the extension passage portion. EGR introduction ports are arranged at positions capable of supplying the EGR gas toward the flowing main streams.
    Type: Application
    Filed: November 9, 2020
    Publication date: July 22, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yoshihiro HAMAZUME, Takashi YOSHIKAWA, Jiro KATO, Taketoshi YAMAUCHI, Hirofumi SHINOHARA, Kazuhiro NAKAMURA, Yoko INAMI, Shouichi AIGA, Tomoaki FUJIYAMA, Kosuke MIYAMOTO, Takuya YAMADA
  • Patent number: 11067042
    Abstract: An intake system of an engine supplies gas at least containing fresh air to each cylinder. The system includes an EGR passage that communicates with an internal space of a downstream intake passage and introduces some EGR gas into the downstream intake passage. The EGR passage includes a projected section in a substantially polygonal or cylindrical shape that is projected to the internal space of the downstream intake passage. The projected section is formed in such a shape that a projection length H1 in an outer circumferential surface on an upstream side is longer than a projection length H2 in an outer circumferential surface on a downstream side.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: July 20, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yusuke Oda, Tomomi Watanabe, Junsou Sasaki, Yuichiro Tanaka, Takuya Yamada
  • Patent number: 11050891
    Abstract: A data processing system includes a unit which executes predetermined data processing by linking first and second apparatuses, a communication control unit which establishes and maintains a communication connection between the apparatuses even if the connection is not in a predetermined operation state capable of executing data processing, a pairing unit which causes the apparatuses to transition to a pairing state, and a control unit which, if the apparatuses' transition to the pairing state is not in a predetermined operation state, causes transition to the operation state by transmitting predetermined signals between the apparatuses via the communication control unit. The execution unit causes the apparatuses to transition to a pairing state, and then executes data processing by linking them. The communication control unit judges whether to establish a communication connection between the apparatuses by referencing pairing states between them, and of a combination with another first or second apparatus.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 29, 2021
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Daisuke Otani, Jun Hosoda, Kazuya Nara, Yuji Kuriyama, Yoshinori Tomidokoro, Toshiya Kiso, Takuya Yamada
  • Publication number: 20210064569
    Abstract: An information processing apparatus includes a converter unit that, if a file is received in a second file format different from a first file format from another information processing apparatus, coverts the file to a file in the first file format and an adding unit that generates additional information including at least attribute information that is missing out of attribution information included in the file in the second file format if the file is converted by the converter unit and adds the additional information to the file after being converted to the first file format.
    Type: Application
    Filed: March 24, 2020
    Publication date: March 4, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takuya YAMADA
  • Publication number: 20210033050
    Abstract: An intake system of an engine supplies gas at least containing fresh air to each cylinder. The system includes an EGR passage that communicates with an internal space of a downstream intake passage and introduces some EGR gas into the downstream intake passage. The EGR passage includes a projected section in a substantially polygonal or cylindrical shape that is projected to the internal space of the downstream intake passage. The projected section is formed in such a shape that a projection length H1 in an outer circumferential surface on an upstream side is longer than a projection length H2 in an outer circumferential surface on a downstream side.
    Type: Application
    Filed: July 21, 2020
    Publication date: February 4, 2021
    Applicant: Mazda Motor Corporation
    Inventors: Yusuke ODA, Tomomi WATANABE, Junsou SASAKI, Yuichiro TANAKA, Takuya YAMADA
  • Publication number: 20200270091
    Abstract: A medium cutting device according to an embodiment may include: a fixed blade provided on one side with respect to a conveyance path in which a medium is conveyed in a thickness direction of the medium orthogonal to a surface of the medium and including a cutting edge thereof; a rotary blade provided on the other side with respect to the conveyance path in the thickness direction, and including a cutting edge thereof, wherein the rotary blade is configured to be rotated in a rotation direction so that the cutting edge of the rotary blade passes by the cutting edge of the fixed blade to cut at a cutting position the medium being conveyed; and a guide member provided upstream of the cutting position in a conveyance direction of the medium and configured to bias the medium toward the rotary blade side.
    Type: Application
    Filed: January 14, 2020
    Publication date: August 27, 2020
    Applicant: Oki Data Corporation
    Inventors: Takuya YAMADA, Naoki KANZAWA