Patents by Inventor Shigeki Fujiwara
Shigeki Fujiwara 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: 20240149206Abstract: A dust collector that collects welding fumes includes: a tank that stores water in a non-full state; a first tower that stands upright from an upper surface of the tank, and is configured to receive air containing the welding fumes from an upper part of the first tower and to guide the air to the tank; a second tower that stands upright from the upper surface of the tank, and is configured such that air discharged from the tank passes through the second tower; a bottleneck structure portion in which a vertically intermediate part of the first tower is narrowed; a mist generator configured to generate mist in the first tower; and a filter housed in the second tower.Type: ApplicationFiled: March 18, 2021Publication date: May 9, 2024Applicants: TRINITY INDUSTRIAL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Xu WANG, Shoji KURAMOTO, Seishiro UENO, Takashi HASHIMOTO, Shingo KURUMATANI, Shigeki FUJIWARA
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Patent number: 11724277Abstract: A paint mist removing apparatus includes: a duct through which air containing paint mist passes; an element fit part provided at the duct, the element fit part being fitted with a filter element including a filter part configured to remove the paint mist and a filter case housing the filter part, the filter case having a case exit from which all air taken in from a case entrance of the filter case is caused to exit through the filter part; an frame-like projection projecting from an inner surface of the duct and abutting on an entire circumference of an opening edge of the case exit of the filter case; and a duct side-surface opening being open at a side surface of the duct and normally closed by a door member, the duct side-surface opening being open when the filter element is set in and out from the element fit part.Type: GrantFiled: January 29, 2021Date of Patent: August 15, 2023Assignee: TRINITY INDUSTRIAL CORPORATIONInventors: Ryota Saito, Shigeki Fujiwara
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Publication number: 20230058673Abstract: A drying furnace comprises a plurality of drying areas that are continuously provided along a longitudinal direction of the furnace and include a first hot air supply port, a second hot air supply port, and an exhaust port. The first hot air supply port is arranged at a position below a vehicle body in the furnace shell to discharge hot air diagonally upward. The second hot air supply port is arranged at a position higher than the first hot air supply port in the furnace shell to discharge hot air diagonally downward. The exhaust port is arranged at a position lower than the first hot air supply port and the second hot air supply port in the furnace shell to discharge the hot air outside the furnace shell. The drying furnace uniformly raises the temperature of the external and internal parts of the vehicle body while shortening the furnace length.Type: ApplicationFiled: February 5, 2021Publication date: February 23, 2023Inventors: Satoshi Tamura, Shigeki FUJIWARA
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Patent number: 11491503Abstract: A coating material mist remover of the present disclosure includes: a first duct that discharges air containing coating material mist from an outflow port directed downward; a second duct having an inflow port opened in a horizontal direction; and an incinerable intermediate filter that is detachably connected between the first duct and the second duct and removes the coating material mist from the air. The coating material mist remover also includes: a first connection mechanism that can connect and separate the first duct and the intermediate filter; and a second connection mechanism that can connect and separate the second duct and the intermediate filter.Type: GrantFiled: May 22, 2020Date of Patent: November 8, 2022Assignees: TRINITY INDUSTRIAL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota Saito, Shigeki Fujiwara, Kenji Tajima, Kai Takishima
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Publication number: 20210316250Abstract: A thermo-sensitive draw solute including a polyoxyalkylene adduct represented by a general formula (1): R1O(AO)nR2 (1), where R1 denotes a residue after withdrawal of a hydroxy group from a monovalent alcohol having a carbon number ranging from 6 to 13, R2 denotes a hydrogen atom or denotes an alkyl group or an alkenyl group having a carbon number ranging from 1 to 13, AO denotes an oxyalkylene group having a carbon number ranging from 2 to 4, n denotes an average added mole number of an alkylene oxide ranging from 1 to 235, and where n is two or more, the two or more AOs may be the same or different from each other.Type: ApplicationFiled: August 5, 2019Publication date: October 14, 2021Inventors: Aya OSATO, Takeshi TSUJi, Koji FUCHIGAMI, Keiji TOMURA, Shigeki FUJIWARA, Makcto KUNUGI, Yuya SATO, Eri WATANABE, Masami NAKAGAWA, Sohei HAMAGUCHI, Koji KUBO
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Publication number: 20210260614Abstract: A paint mist removing apparatus includes: a duct through which air containing paint mist passes; an element fit part provided at the duct, the element fit part being fitted with a filter element including a filter part configured to remove the paint mist and a filter case housing the filter part, the filter case having a case exit from which all air taken in from a case entrance of the filter case is caused to exit through the filter part; an frame-like projection projecting from an inner surface of the duct and abutting on an entire circumference of an opening edge of the case exit of the filter case; and a duct side-surface opening being open at a side surface of the duct and normally closed by a door member, the duct side-surface opening being open when the filter element is set in and out from the element fit part.Type: ApplicationFiled: January 29, 2021Publication date: August 26, 2021Applicant: TRINITY INDUSTRIAL CORPORATIONInventors: Ryota SAITO, Shigeki FUJIWARA
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Patent number: 10947748Abstract: A reinforcement structure includes compound trusses placed horizontally symmetrically, and each compound truss is constituted by a first truss and a second truss. Each first truss has: a vertical side; a first inclined side extending obliquely downward from an upper end of the vertical side; and a second inclined side connecting between the vertical side and a lower end of the first inclined side. Each second truss shares the first inclined side with the first truss and has: a horizontal side extending horizontally from the upper end of the vertical side; and a second inclined side connecting between a tip end of the horizontal side and the lower end of the first inclined side. Each compound truss is coupled to the construction in a state where the vertical side is along an inner side surface of the construction and the horizontal side is along a ceiling surface of the construction.Type: GrantFiled: March 15, 2018Date of Patent: March 16, 2021Assignee: TRINITY INDUSTRIAL CORPORATIONInventors: Shigeki Fujiwara, Takaaki Tamura, Masayuki Miyake
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Patent number: 10907368Abstract: A reinforcement structure includes compound trusses placed horizontally symmetrically, and each compound truss is constituted by a first truss and a second truss. Each first truss has: a vertical side; a first inclined side extending obliquely downward from an upper end of the vertical side; and a second inclined side connecting between the vertical side and a lower end of the first inclined side. Each second truss shares the first inclined side with the first truss and has: a horizontal side extending horizontally from the upper end of the vertical side; and a second inclined side connecting between a tip end of the horizontal side and the lower end of the first inclined side. Each compound truss is coupled to the construction in a state where the vertical side is along an inner side surface of the construction and the horizontal side is along a ceiling surface of the construction.Type: GrantFiled: March 15, 2018Date of Patent: February 2, 2021Assignee: TRINITY INDUSTRIAL CORPORATIONInventors: Shigeki Fujiwara, Takaaki Tamura, Masayuki Miyake
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Publication number: 20210002148Abstract: A water treatment apparatus including: a forward osmosis device configured to allow a diluted draw solution to flow out and to discharge a water-containing solution; a heater configured to heat the diluted draw solution; a water separator configured to separate the diluted draw solution heated by the heater into a water-rich solution and the draw solution having water content lower than that of the water-rich solution; a cooler configured to cool a liquid and allow the liquid to flow out as a coolant; an inflow side heat exchanger configured to perform heat exchange between the coolant flowed out from the cooler and the draw solution flowed out from the water separator; and an outflow side heat exchanger configured to perform heat exchange between the diluted draw solution flowed out from the forward osmosis device and the water-rich solution flowed out from the water separator.Type: ApplicationFiled: February 20, 2019Publication date: January 7, 2021Inventors: Yuya SATO, Takeshi TSUJI, Koji FUCHIGAMI, Keiji TOMURA, Shigeki FUJIWARA, Makoto KUNUGI, Eri WATANABE, Aya OSATO
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Publication number: 20200398300Abstract: A coating material mist remover of the present disclosure includes: a first duct that discharges air containing coating material mist from an outflow port directed downward; a second duct having an inflow port opened in a horizontal direction; and an incinerable intermediate filter that is detachably connected between the first duct and the second duct and removes the coating material mist from the air. The coating material mist remover also includes: a first connection mechanism that can connect and separate the first duct and the intermediate filter; and a second connection mechanism that can connect and separate the second duct and the intermediate filter.Type: ApplicationFiled: May 22, 2020Publication date: December 24, 2020Applicants: TRINITY INDUSTRIAL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota SAITO, Shigeki FUJIWARA, Kenji TAJIMA, Kai TAKISHIMA
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Patent number: 10669173Abstract: A ballast water treatment device includes an oxidant supply amount control device in which a storage unit stores a relationship between an absorbance of a raw water for a ballast and a dissolved organic carbon concentration thereof and another relationship between the dissolved concentration and a residual oxidant concentration required after a predetermined time from an oxidant supply, to kill organisms and to suppress their regrowth in the ballast. A calculation unit derives the required residual oxidant concentration corresponding to the absorbance measured by a meter by referring to the relationships and calculates a target oxidant supply amount using the required residual oxidant concentration. For the target, a control unit controls an oxidant supply device.Type: GrantFiled: October 25, 2018Date of Patent: June 2, 2020Assignee: JFE Engineering CorporationInventors: Shigeki Fujiwara, Masanori Nagafuji, Yukihiko Okamoto, Yusuke Shimono
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Publication number: 20200094219Abstract: A thermo-sensitive water absorbent is used as a draw material in production of fresh water by a forward osmosis process. The thermo-sensitive water absorbent has a cloud point, and coagulates when heated, the thereto-sensitive water absorbent being a block copolymer containing at least a hydrophobic part and a hydrophilic part, having a glycerin structure as a basic structure, and including an ethylene oxide group and a group consisting of propylene oxide and/or butylene oxide.Type: ApplicationFiled: November 27, 2019Publication date: March 26, 2020Inventors: Koji FUCHIGAMI, Takeshi TSUJI, Keiji TOMURA, Shigeki FUJIWARA, Makoto KUNUGI, Aya OSATO, Subramanian IYER
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Publication number: 20200094220Abstract: A thermo-sensitive water absorbent is used as a draw material in production of fresh water by a forward osmosis process. The thermo-sensitive water absorbent has a cloud point, and coagulates when heated, the thermo-sensitive water absorbent being a block copolymer containing at least a hydrophobic part and a hydrophilic part, having a glycerin structure as a basic structure, and including an ethylene oxide group and a group consisting of propylene oxide and/or butylene oxide.Type: ApplicationFiled: November 27, 2019Publication date: March 26, 2020Inventors: Koji FUCHIGAMI, Takeshi TSUJI, Keiji TOMURA, Shigeki FUJIWARA, Makoto KUNUGI, Aya OSATO, Subramanian IYER
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Publication number: 20200094221Abstract: A thermo-sensitive water absorbent is used as a draw material in production of fresh water by a forward osmosis process. The thermo-sensitive water absorbent has a cloud point, and coagulates when heated, the thermo-sensitive water absorbent being a block copolymer containing at least a hydrophobic part and a hydrophilic part, having a glycerin structure as a basic structure, and including an ethylene oxide group and a group consisting of propylene oxide and/or butylene oxide.Type: ApplicationFiled: November 27, 2019Publication date: March 26, 2020Inventors: Koji FUCHIGAMI, Takeshi TSUJI, Keiji TOMURA, Shigeki FUJIWARA, Makoto KUNUGI, Aya OSATO, Subramanian IYER
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Publication number: 20200087938Abstract: A reinforcement structure includes compound trusses placed horizontally symmetrically, and each compound truss is constituted by a first truss and a second truss. Each first truss has: a vertical side; a first inclined side extending obliquely downward from an upper end of the vertical side; and a second inclined side connecting between the vertical side and a lower end of the first inclined side. Each second truss shares the first inclined side with the first truss and has: a horizontal side extending horizontally from the upper end of the vertical side; and a second inclined side connecting between a tip end of the horizontal side and the lower end of the first inclined side. Each compound truss is coupled to the construction in a state where the vertical side is along an inner side surface of the construction and the horizontal side is along a ceiling surface of the construction.Type: ApplicationFiled: March 15, 2018Publication date: March 19, 2020Applicant: TRINITY INDUSTRIAL CORPORATIONInventors: Shigeki FUJIWARA, Takaaki TAMURA, Masayuki MIYAKE
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Patent number: 10392283Abstract: A method and apparatus for removing soluble silica efficiently from accompanied water, produced from wells containing calcium ion, soluble silica, and sulfate ion, and not clogging a reverse osmosis membrane in the reverse osmosis membrane treatment process after that, includes adding a magnesium salt to mix with the accompanied water under alkaline conditions to produce insoluble silica and calcium sulfate. A microfiltration (MF) membrane treatment process includes treating a first reaction solution obtained in said magnesium salt adding process, with a microfiltration membrane to separate insolubilized silica and calcium sulfate by filtration. An acid adding process includes adding an acid to and mixing with filtrate obtained in the MF membrane treatment process to render a pH value of the filtrate on the range from 5 to 9 and a negative Langeliar saturation index.Type: GrantFiled: October 14, 2014Date of Patent: August 27, 2019Assignee: JFE ENGINEERING CORPORATIONInventors: Shigeki Fujiwara, Eri Watanabe, Yohei Tomida, Koji Fuchigami, Takeshi Tsuji, Yasuhiro Minamizato, Yasuto Ando, Yoshitaka Moriyama
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Publication number: 20190202721Abstract: A ballast water treatment device includes an oxidant supply amount control device in which a storage unit stores a relationship between an absorbance of a raw water for a ballast and a dissolved organic carbon concentration thereof and another relationship between the dissolved concentration and a residual oxidant concentration required after a predetermined time from an oxidant supply, to kill organisms and to suppress their regrowth in the ballast. A calculation unit derives the required residual oxidant concentration corresponding to the absorbance measured by a meter by referring to the relationships and calculates a target oxidant supply amount using the required residual oxidant concentration. For the target, a control unit controls an oxidant supply device.Type: ApplicationFiled: October 25, 2018Publication date: July 4, 2019Applicant: JFE Engineering CorporationInventors: Shigeki Fujiwara, Masanori Nagafuji, Yukihiko Okamoto, Yusuke Shimono
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Patent number: 10232329Abstract: A generating method for generating one of mist and fine-bubbles or fine-bubbles is provided. The generating method includes arranging a piezoelectric substrate equipped thereon with an excitation source in a liquid, generating a flow of the liquid using a liquid flow generator that generates the flow of the liquid relative to the piezoelectric substrate, exciting a surface acoustic wave on the excitation source, propagating the excited surface acoustic wave so as to generate mist on a gas side and to generate fine-bubbles on a liquid side of the piezoelectric substrate, carrying the generated fine-bubbles away from the piezoelectric substrate with the generated flow of the liquid, and drawing the liquid containing the fine-bubbles from a liquid container which contains the liquid.Type: GrantFiled: January 20, 2017Date of Patent: March 19, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masanori Okano, Shigeki Fujiwara, Youhei Ishigami
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Publication number: 20170182477Abstract: A thermo-sensitive water absorbent is used as a draw material in production of fresh water by a forward osmosis process. The thermo-sensitive water absorbent has a cloud point, and coagulates when heated, the thermo-sensitive water absorbent being a block copolymer containing at least a hydrophobic part and a hydrophilic part, having a glycerin structure as a basic structure, and including an ethylene oxide group and a group consisting of propylene oxide and/or butylene oxide.Type: ApplicationFiled: April 10, 2015Publication date: June 29, 2017Inventors: Koji FUCHIGAMI, Takeshi TSUJI, Keiji TOMURA, Shigeki FUJIWARA, Makoto KUNUGI, Aya OSATO, Subramanian IYER
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Publication number: 20170128898Abstract: A generating method for generating one of mist and fine-bubbles or fine-bubbles is provided. The generating method includes arranging a piezoelectric substrate equipped thereon with an excitation source in a liquid, generating a flow of the liquid using a liquid flow generator that generates the flow of the liquid relative to the piezoelectric substrate, exciting a surface acoustic wave on the excitation source, propagating the excited surface acoustic wave so as to generate mist on a gas side and to generate fine-bubbles on a liquid side of the piezoelectric substrate, carrying the generated fine-bubbles away from the piezoelectric substrate with the generated flow of the liquid, and drawing the liquid containing the fine-bubbles from a liquid container which contains the liquid.Type: ApplicationFiled: January 20, 2017Publication date: May 11, 2017Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: MASANORI OKANO, SHIGEKI FUJIWARA, YOUHEI ISHIGAMI