Patents by Inventor Hiroshi Igarashi
Hiroshi Igarashi 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).
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Patent number: 11150573Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: GrantFiled: July 22, 2020Date of Patent: October 19, 2021Assignee: BROTHER KOGOYO KABUSHIKI KAISHAInventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Patent number: 11145529Abstract: An EFEM includes first and second chambers, an airflow formation unit, a gas discharge port, and first and second nozzles. The first chamber introduces a replacement gas. The second chamber is connected with the first chamber via first and second communication sections. In the first communication section, a filter is disposed, and the replacement gas inflows from the first chamber. In the second communication section, the replacement gas outflows into the first chamber. The airflow formation unit produces a circulating airflow between the first and second chambers. The gas discharge port discharges an internal gas from the first or second chamber. The first nozzle discharges the replacement gas supplied from a replacement gas supply source into the first chamber through a first opening. The second nozzle discharges the replacement gas supplied from the source through a second opening.Type: GrantFiled: May 29, 2018Date of Patent: October 12, 2021Assignee: TDK CORPORATIONInventors: Tsutomu Okabe, Hiroshi Igarashi
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Publication number: 20210309812Abstract: One object of the present invention is to provide a production method for powder that can produce powder which can suppress foaming of a melt and can produce a molded-article with good conductivity and appearance by melt-molding, the present invention provides a production method for powder containing a composite resin (2, 21, 22, 23) containing a thermomeltable resin (2a) and a conductive filler (2b), wherein the production method comprises: a dispersion preparing step in which a raw material powder containing the thermomeltable resin (2a), the conductive filler (2b), a dispersion medium in which the raw material powder and the conductive filler (2b) are dispersed, and a dispersant (3) for dispersing the conductive filler (2b) in the dispersion medium are mixed to prepare the dispersion: an intermediate powder recovering step in which the dispersion medium is removed from the dispersion and recovering an intermediate powder containing the composite resin (2, 21, 22, 23) and the dispersant (3); and a dispersaType: ApplicationFiled: July 26, 2019Publication date: October 7, 2021Inventors: Yasuhito KODA, Katsunori TAKADA, Hiroshi IGARASHI
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Publication number: 20210301089Abstract: An object of the present invention is to provide a production method for composite resin particles containing a fluororesin and a carbon nanomaterial and having excellent moldability while maintaining conductivity, the present invention provides a production method for composite resin particles containing a fluororesin and a carbon nanomaterial, comprising: a step of separating the fluororesin in the presence of a dispersion medium; a step of obtaining a dispersion containing the fluororesin, the carbon nanomaterial, and the dispersion medium by dispersing the fluororesin and the carbon nanomaterial in the dispersion medium; and a step of removing the dispersion medium by storing the dispersion in a drying container having a bottom surface, and drying the dispersion under conditions in which a dry area calculated by the following equation (1) is in a range of 20˜100 [cm2/g], Dry area=(S/W1) . . .Type: ApplicationFiled: July 25, 2019Publication date: September 30, 2021Inventors: Yasuhito KODA, Katsunori TAKADA, Hiroshi IGARASHI
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Publication number: 20210287918Abstract: A circulating EFEM includes an introduction port for introducing a gas, a housing for circulating the introduced gas, and a discharge port for discharging the gas from the housing into a discharge pipe. The discharge port includes a box and a damper. The box is disposed to surround a discharge opening formed on the housing and connected to the discharge pipe. The damper is disposed inside the box to close and open the discharge port and adjusts a discharge amount of the gas via the discharge opening by at least partially moving in response to a differential pressure between the housing and the box.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Applicant: TDK CORPORATIONInventors: Hiroshi IGARASHI, Tsutomu OKABE, Mutsuo SASAKI
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Patent number: 11049736Abstract: A circulating EFEM includes an introduction port for introducing a gas, a housing for circulating the introduced gas, and a discharge port for discharging the gas from the housing into a discharge pipe. The discharge port includes a box and a damper. The box is disposed to surround a discharge opening formed on the housing and connected to the discharge pipe. The damper is disposed inside the box to close and open the discharge port and adjusts a discharge amount of the gas via the discharge opening by at least partially moving in response to a differential pressure between the housing and the box.Type: GrantFiled: April 26, 2019Date of Patent: June 29, 2021Assignee: TDK CORPORATIONInventors: Hiroshi Igarashi, Tsutomu Okabe, Mutsuo Sasaki
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Publication number: 20210184228Abstract: Provide an electrode catalyst with excellent catalytic activity that can contribute to cost reduction of PEFC. The electrode catalyst includes a hollow carbon carrier with mesopores with a pore size of 2 to 50 nm and a catalyst particle supported on the carrier. The catalyst particle is supported on both inside and outside the mesopores of the carrier, and have a core portion formed on the carrier and a shell portion covering at least a part of the surface of the core portion. Pd is included in the core portion, and Pt is included in the shell portion, and when the analysis of the particle size distribution of the catalyst particles using the three dimensional reconstructed image obtained by electron beam tomography (electron tomography) measurement using an STEM is performed, the ratio of the catalyst particles supported inside the mesopore is 50% or more.Type: ApplicationFiled: May 15, 2019Publication date: June 17, 2021Applicant: N.E. CHEMCAT CORPORATIONInventors: Kiyotaka Nagamori, Yoko Nakamura, Tomoteru Mizusaki, Yasuhiro Seki, Hiroshi Igarashi
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Publication number: 20210104424Abstract: A load port apparatus connects a main opening of a wafer transportation container to a frame opening. The apparatus includes an installation unit, a frame unit, a flange clamp unit, and a detection unit. The installation unit includes an installation table configured to install the container and relatively move to the frame opening. The frame unit is upright upward from the installation unit and includes the frame opening. The flange clamp unit includes an engagement section and a drive section. The engagement section is engageable with a flange surrounding an outer circumference of the main opening. The drive section drives the engagement section to carry out an engagement operation and a separation operation. The detection unit detects the engagement operation by the flange clamp unit with classification into a normal engagement operation and an abnormal engagement operation.Type: ApplicationFiled: October 7, 2020Publication date: April 8, 2021Applicant: TDK CORPORATIONInventors: Tomoshi ABE, Hiroshi HASEGAWA, Nozomu KATO, Hiroshi IGARASHI, Tadamasa IWAMOTO
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Publication number: 20200348613Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: ApplicationFiled: July 22, 2020Publication date: November 5, 2020Inventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Patent number: 10775713Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: GrantFiled: September 18, 2019Date of Patent: September 15, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Patent number: 10739696Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: GrantFiled: September 18, 2019Date of Patent: August 11, 2020Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Patent number: 10665488Abstract: A load port apparatus connects a main opening of a wafer transportation container with a frame opening. The load port apparatus includes an installation part, a frame, and a flange clamp. The installation part has an installation table configured to install the wafer transportation container and move to and from the frame opening. The frame is upright from the installation part and has the frame opening. The flange clamp includes an engagement portion and a drive portion. The engagement portion is configured to be engaged with a flange surrounding an outer circumference of the main opening. The drive portion is configured to drive the engagement portion. The engagement portion is engaged from above or the side with a flange groove formed in the flange and opening radially outwardly.Type: GrantFiled: September 26, 2018Date of Patent: May 26, 2020Assignee: TDK CORPORATIONInventors: Tadamasa Iwamoto, Hiroshi Igarashi
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Publication number: 20200070244Abstract: One object of the present invention is to provide fine copper particles which are less likely to be deteriorated by oxidation in the atmosphere without being coated with an antioxidant or the like and which can be sintered at a lower temperature. The present invention provides fine copper particles wherein an entire surface is covered with a coating film containing cuprous oxide and having an average film thickness of 1.5 nm or less.Type: ApplicationFiled: March 7, 2018Publication date: March 5, 2020Inventors: Yuji SAKURAMOTO, Hiroshi IGARASHI, Takayuki FUJIMOTO
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Publication number: 20200012208Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: ApplicationFiled: September 18, 2019Publication date: January 9, 2020Inventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Publication number: 20190375022Abstract: An object of the present invention to provide copper fine particles which can be sintered at a lower temperature than that of the conventional copper fine particles without causing a cost increase, a decrease in productivity, a method for producing the copper fine particles, and a sintered body, and the present invention provides copper fine particles having a coating film containing cuprous oxide and copper carbonate on the surface thereof.Type: ApplicationFiled: February 5, 2018Publication date: December 12, 2019Inventors: Yuji SAKURAMOTO, Hiroshi IGARASHI, Takayuki FUJIMOTO
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Publication number: 20190341273Abstract: A circulating EFEM includes an introduction port for introducing a gas, a housing for circulating the introduced gas, and a discharge port for discharging the gas from the housing into a discharge pipe. The discharge port includes a box and a damper. The box is disposed to surround a discharge opening formed on the housing and connected to the discharge pipe. The damper is disposed inside the box to close and open the discharge port and adjusts a discharge amount of the gas via the discharge opening by at least partially moving in response to a differential pressure between the housing and the box.Type: ApplicationFiled: April 26, 2019Publication date: November 7, 2019Applicant: TDK CORPORATIONInventors: Hiroshi IGARASHI, Tsutomu OKABE, Mutsuo SASAKI
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Patent number: 10444659Abstract: A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.Type: GrantFiled: October 19, 2018Date of Patent: October 15, 2019Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasumasa Fujii, Tsutomu Suzuki, Hiroshi Igarashi
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Patent number: 10333151Abstract: Provided is a method for producing a gas diffusion electrode, with which it is possible to more effectively improve electrode performance, in cases in which a core-shell catalyst is used as an electrode catalyst. This method for producing gas diffusion electrode comprises: a first step in which a support layer having electron conductivity, water-repellency and gas diffusion properties is soaked in water; a second step in which the constituent materials of ink for forming a catalyst layer are put into a mixer and mixed by agitation to prepare an ink for forming a catalyst layer; and a third step in which the ink for forming a catalyst layer is used to form a catalyst layer on the surface of the support layer obtained in the first step. The ink for forming the catalyst layer contains a core-shell catalyst, a polyelectrolyte, water and alcohol. The alcohol is only a polyvalent alcohol.Type: GrantFiled: April 19, 2016Date of Patent: June 25, 2019Assignee: N.E. CHEMCAT CORPORATIONInventors: Yasuhiro Seki, Takuya Tsubaki, Hiroshi Igarashi
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Patent number: 10256475Abstract: Provided is an electrode catalyst that can exhibit sufficient performance, is suitable for mass production, and is suitable for reducing production costs, even when containing a relatively high concentration of chlorine. The electrode catalyst has a core-shell structure including a support; a core part that is formed on the support; and a shell part that is formed so as to cover at least one portion of the surface of the core part. A concentration of bromine (Br) species of the electrode catalyst as measured by X-ray fluorescence (XRF) spectroscopy is 500 ppm or less, and a concentration of chlorine (Cl) species of the electrode catalyst as measured by X-ray fluorescence (XRF) spectroscopy is 8,500 ppm or less.Type: GrantFiled: July 12, 2017Date of Patent: April 9, 2019Assignee: N.E. CHEMCAT CORPORATIONInventors: Kiyotaka Nagamori, Tomoteru Mizusaki, Yoko Nakamura, Takuya Tsubaki, Hiroshi Igarashi, Yasuhiro Seki
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Publication number: 20190096728Abstract: A load port apparatus connects a main opening of a wafer transportation container with a frame opening. The load port apparatus includes an installation part, a frame, and a flange clamp. The installation part has an installation table configured to install the wafer transportation container and move to and from the frame opening. The frame is upright from the installation part and has the frame opening. The flange clamp includes an engagement portion and a drive portion. The engagement portion is configured to be engaged with a flange surrounding an outer circumference of the main opening. The drive portion is configured to drive the engagement portion. The engagement portion is engaged from above or the side with a flange groove formed in the flange and opening radially outwardly.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: TDK CORPORATIONInventors: Tadamasa IWAMOTO, Hiroshi IGARASHI