Patents by Inventor Atsushi Kitanaka
Atsushi Kitanaka 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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Publication number: 20240116416Abstract: In a cushion skin, left and right side surface skin front portions are fixed to a cushion frame of the seat cushion. The left and right side surface skin rear portions are respectively connected to the left and right side surface skin front portions, and each have a lower extending portion extending downward of the rear portion of the cushion pad. The connecting portion is disposed at the lower side of the rear portion of the cushion pad, and connects the distal end portions of each lower extending portion of the left and right side surface skin rear portions in the seat left-right direction. In each lower extending portion, a front side in the seat front-rear direction expands wider outward in the seat left-right direction than a rear side.Type: ApplicationFiled: October 6, 2023Publication date: April 11, 2024Inventors: Syunji TAKAZAWA, Hideki HASUMI, Atsushi KAGEYAMA, Fumito KITANAKA, Kenji NAGUMO
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Publication number: 20150329381Abstract: A separation membrane module has an element unit. The element unit includes: a shaft; a plurality of separation membrane elements each including a separation membrane pair having two separation membranes disposed so that permeate-side surfaces of the separation membranes face each other and a water collecting flow path provided between the separation membranes, and a sealed portion that seals the separation membranes at peripheral edge portions of the separation membranes; a suspension portion that suspends the separation membrane elements on the shaft; and a water collection nozzle provides communication between the water collection flow path and an outside of the separation membrane elements.Type: ApplicationFiled: July 8, 2013Publication date: November 19, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Atsushi Kitanaka, Yasuharu Watanabe, Shuji Furuno, Yoshifumi Odaka, Seiko Kantani, Hideaki Ando
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Publication number: 20150021264Abstract: A plant effluent treatment method includes a mixing treatment step that mixes a microorganism activating agent into plant effluent containing organic compounds as discharged from a chemical plant, petroleum plant or petrochemical plant and discharges it as mixing treatment effluent, and an aerobic treatment step that subjects the mixing treatment effluent to aerobic biological treatment and solid-liquid separation treatment in a membrane bioreactor tank.Type: ApplicationFiled: January 10, 2013Publication date: January 22, 2015Applicants: Chiyoda Corporation, Toray Industries, Inc.Inventors: Kanako Tsuda, Yusuke Shinoda, Masayo Shinohara, Kazuyuki Tejima, Atsushi Kitanaka, Masahide Taniguchi
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Publication number: 20150021260Abstract: A separation membrane element including a pair of separation membranes containing two separation membranes arranged so that the filtrate-side surfaces thereof are disposed in mutually opposed relation, and a plurality of resin members bonded to both of the mutually opposed filtrate-side surfaces, a peripheral edge of the pair of separation membranes being sealed.Type: ApplicationFiled: February 19, 2013Publication date: January 22, 2015Applicant: Toray IndustriesInventors: Kenta Iwai, Shuji Furuno, Yoshifumi Odaka, Kenji Komori, Yasuharu Watanabe, Atsushi Kitanaka, Seiko Kantani, Hideaki Ando
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Patent number: 8900456Abstract: A method of treating wastewater containing an organic compound includes feeding wastewater to an anoxic tank, adding compounds containing nitrogen and phosphorus components to wastewater, performing anaerobic treatment on wastewater, and discharging treated wastewater as pre-treated water; introducing pre-treated water into an anaerobic treatment tank, performing anaerobic treatment on pre-treated water, thereby decomposing the organic compound into organic compounds of smaller molecular size and a mixture gas containing methane and carbon dioxide, and discharging treated water as primary water; introducing primary water into an aerobic treatment tank, performing aerobic treatment on primary water, and discharging treated water through a solid-liquid separator as secondary water; and introducing at least a part of secondary water into a reverse osmosis membrane separation unit, and separating part of secondary water into RO permeated water and RO concentrated brine, wherein at least a part of RO concentratedType: GrantFiled: September 1, 2010Date of Patent: December 2, 2014Assignees: Chiyoda Corporation, Toray Industries, Inc.Inventors: Masayo Shinohara, Kazuhige Kawamura, Hiromi Satoh, Toshinobu Imahama, Atsushi Kitanaka, Masahide Taniguchi
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Publication number: 20130306559Abstract: The present invention relates to a cleaning method for a submerged membrane element used in a membrane bioreactor treatment in which organic wastewater containing 1 mg/L or more of manganese is subjected a biological treatment in a bioreactor treatment tank and then subjected to solid-liquid separation by a membrane filtration device provided in the bioreactor treatment tank, in which after a first liquid containing an oxidizing agent is injected from a secondary side of the submerged membrane element to a primary side thereof and maintained for a certain period of time, the first liquid containing an oxidizing agent is suction-discharged from the secondary side to the outside of the system, and then a second liquid containing an acid is injected from the secondary side of the submerged membrane element to the primary side thereof and maintained for a certain period of time, followed by conducting suction filtration operation.Type: ApplicationFiled: November 25, 2011Publication date: November 21, 2013Applicant: TORAY INDUSTRIES, INC.Inventors: Seiko Kantani, Atsushi Kitanaka, Masahiro Kihara, Toshiro Miyoshi
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Patent number: 8557112Abstract: A fine bubble diffusing tube that can generate fine bubbles evenly and uniformly even when the diffusing tube has a long length, a fine bubble diffusing device using such a tube and a submerged membrane separation apparatus are produced. The fine bubble diffusing tube is provided with a cylindrical supporting tube 1, and an elastic sheet 2 with fine slits formed therein, with the elastic sheet 2 being placed to cover the outer circumference of the supporting tube 1, so that, upon supplying a gas to a space between the elastic sheet 2 and the supporting tube 1, the fine slits of the elastic sheet 2 are opened to generate fine bubbles, and the supporting tube 1 has a length L of 1000 mm or more in the longitudinal direction, with gas supply units 4 serving as gas flow inlets being attached to the two ends of the supporting tube.Type: GrantFiled: September 19, 2008Date of Patent: October 15, 2013Assignee: Toray Industries, Inc.Inventors: Hiroo Takabatake, Yuji Tanaka, Kazuya Sugita, Atsushi Kitanaka
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Publication number: 20120181229Abstract: A method of treating wastewater containing an organic compound includes feeding wastewater to an anoxic tank, adding compounds containing nitrogen and phosphorus components to wastewater, performing anaerobic treatment on wastewater, and discharging treated wastewater as pre-treated water; introducing pre-treated water into an anaerobic treatment tank, performing anaerobic treatment on pre-treated water, thereby decomposing the organic compound into organic compounds of smaller molecular size and a mixture gas containing methane and carbon dioxide, and discharging treated water as primary water; introducing primary water into an aerobic treatment tank, performing aerobic treatment on primary water, and discharging treated water through a solid-liquid separator as secondary water; and introducing at least a part of secondary water into a reverse osmosis membrane separation unit, and separating part of secondary water into RO permeated water and RO concentrated brine, wherein at least a part of RO concentratedType: ApplicationFiled: September 1, 2010Publication date: July 19, 2012Applicants: TORAY INDUSTRIES, INC., CHIYODA CORPORATIONInventors: Masayo Shinohara, Kazushige Kawamura, Hiromi Satoh, Toshinobu Imahama, Atsushi Kitanaka, Masahide Taniguchi
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Publication number: 20100224541Abstract: A fine bubble diffusing tube that can generate fine bubbles evenly and uniformly even when the diffusing tube has a long length, a fine bubble diffusing device using such a tube and a submerged membrane separation apparatus are produced. The fine bubble diffusing tube is provided with a cylindrical supporting tube 1, and an elastic sheet 2 with fine slits formed therein, with the elastic sheet 2 being placed to cover the outer circumference of the supporting tube 1, so that, upon supplying a gas to a space between the elastic sheet 2 and the supporting tube 1, the fine slits of the elastic sheet 2 are opened to generate fine bubbles, and the supporting tube 1 has a length L of 1000 mm or more in the longitudinal direction, with gas supply units 4 serving as gas flow inlets being attached to the two ends of the supporting tube.Type: ApplicationFiled: September 19, 2008Publication date: September 9, 2010Applicant: Toray Industries, Inc.Inventors: Hiroo Takabatake, Yuji Tanaka, Kazuya Sugita, Atsushi Kitanaka
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Publication number: 20100213124Abstract: A submerged membrane separation apparatus is provided that includes a separation membrane module and fine bubble diffusing tubes placed vertically below the module that can evenly and uniformly produce fine bubbles from vertically below the separation membrane module, even when the separation membrane module is large.Type: ApplicationFiled: April 21, 2008Publication date: August 26, 2010Applicant: Toray Industries, IncInventors: Hiroo Takabatake, Asami Naruse, Kazuya Sugita, Atsushi Kitanaka