Patents by Inventor Tetsuya Uenaka
Tetsuya Uenaka 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: 11986773Abstract: A membrane defect inspection method that can detect damage in a filtrate membrane and can detect presence or absence of damage or a seal defect in a membrane module; and the method is for a membrane module set including multiple membrane modules connected under gas detection piping communicating with primary spaces of the multiple membrane modules where raw water is supplied or secondary spaces in multiple membrane modules where treated water is extracted after the raw water is filtrated by membranes. The method includes a gas injection process where gas is injected into spaces opposite the primary or secondary spaces communicating with gas detection piping in the multiple membrane modules while the gas detection piping is filled with water, and a vibration detection process where a vibration sensor is brought into contact with a protrusion protruding outward from the gas detection piping to detect vibration of the gas detection piping.Type: GrantFiled: December 3, 2019Date of Patent: May 21, 2024Assignee: KUBOTA CORPORATIONInventors: Keishi Watanabe, Shintaro Nishimoto, Tetsuya Uenaka, Fang Zhao, Akira Matsunaga
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Patent number: 11890581Abstract: A membrane defect inspection method is for a membrane module set including a plurality of membrane modules connected in parallel under a straight pipe portion of gas detection piping extending in a horizontal direction and communicating with primary spaces in the plurality of membrane modules to which raw water is supplied or secondary spaces. The method includes a gas injection process where gas is injected into spaces opposite to the primary spaces or the secondary spaces communicating with the gas detection piping while the gas detection piping is filled with water, and an echo detection process where an ultrasonic sensor is brought into contact with an end portion of the straight pipe portion of the gas detection piping, and a reflected wave of an ultrasonic wave transmitted from the ultrasonic sensor is detected.Type: GrantFiled: December 3, 2019Date of Patent: February 6, 2024Assignee: KUBOTA CORPORATIONInventors: Keishi Watanabe, Shintaro Nishimoto, Tetsuya Uenaka, Fang Zhao, Akira Matsunaga
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Publication number: 20220111336Abstract: A membrane filtration device includes a plurality of membrane separation units vertically disposed in multiple stages. The membrane separation unit has a primary side communicating with a backwash drainage system and a flushing-air supply system to receive supplied raw water and a secondary side communicating with a backwash-water supply system to collect permeate. The backwash-water supply system includes a backwash-water main pipe and a plurality of backwash-water branch pipes to feed the backwash water into the membrane separation units. The backwash drainage system includes a plurality of backwash-drainage branch pipes and a backwash-drainage main pipe connected in parallel to the backwash-drainage branch pipes. The flushing-air supply system includes an air main pipe for passing flushing air upward and a plurality of air branch pipes for feeding flushing air into the membrane separation units, the air branch pipes being connected in parallel to the air main pipe.Type: ApplicationFiled: December 12, 2019Publication date: April 14, 2022Applicant: KUBOTA CORPORATIONInventors: Shintaro NISHIMOTO, Keishi WATANABE, Tetsuya UENAKA, Fang ZHAO, Akira MATSUNAGA
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Publication number: 20220023802Abstract: A membrane defect inspection method that can detect damage in a filtrate membrane and can detect presence or absence of damage or a seal defect in a membrane module; and the method is for a membrane module set including multiple membrane modules connected under gas detection piping communicating with primary spaces of the multiple membrane modules where raw water is supplied or secondary spaces in multiple membrane modules where treated water is extracted after the raw water is filtrated by membranes. The method includes a gas injection process where gas is injected into spaces opposite the primary or secondary spaces communicating with gas detection piping in the multiple membrane modules while the gas detection piping is filled with water, and a vibration detection process where a vibration sensor is brought into contact with a protrusion protruding outward from the gas detection piping to detect vibration of the gas detection piping.Type: ApplicationFiled: December 3, 2019Publication date: January 27, 2022Applicant: KUBOTA CORPORATIONInventors: Keishi WATANABE, Shintaro NISHIMOTO, Tetsuya UENAKA, Fang ZHAO, Akira MATSUNAGA
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Publication number: 20210394123Abstract: A membrane defect inspection method is for a membrane module set including a plurality of membrane modules connected in parallel under a straight pipe portion of gas detection piping extending in a horizontal direction and communicating with primary spaces in the plurality of membrane modules to which raw water is supplied or secondary spaces. The method includes a gas injection process where gas is injected into spaces opposite to the primary spaces or the secondary spaces communicating with the gas detection piping while the gas detection piping is filled with water, and an echo detection process where an ultrasonic sensor is brought into contact with an end portion of the straight pipe portion of the gas detection piping, and a reflected wave of an ultrasonic wave transmitted from the ultrasonic sensor is detected.Type: ApplicationFiled: December 3, 2019Publication date: December 23, 2021Applicant: KUBOTA CORPORATIONInventors: Keishi WATANABE, Shintaro NISHIMOTO, Tetsuya UENAKA, Fang ZHAO, Akira MATSUNAGA
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Patent number: 10343936Abstract: A membrane casing that watertightly houses a membrane element for filtering raw water includes a tubular casing main body, a lid body, and a pressing mechanism. The casing main body houses a membrane element. The lid body fits an opening end of the casing main body and is movable in the axial direction of the casing main body while maintaining the attitude and while securing watertightness with the casing main body. The pressing mechanism and presses the lid body to press and hold the membrane element housed in the casing main body. The membrane casing has a simple configuration capable of watertightly securing using a predetermined pressing force by accommodating variations in size of the membrane element, even if the membrane casing cannot be formed into a cylindrical shape.Type: GrantFiled: March 10, 2015Date of Patent: July 9, 2019Assignee: KUBOTA CORPORATIONInventors: Keishi Watanabe, Shintaro Nishimoto, Tetsuya Uenaka
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Publication number: 20170015569Abstract: A membrane casing that watertightly houses a membrane element for filtering raw water includes a tubular casing main body, a lid body, and a pressing mechanism. The casing main body houses a membrane element. The lid body fits an opening end of the casing main body and is movable in the axial direction of the casing main body while maintaining the attitude and while securing watertightness with the casing main body. The pressing mechanism and presses the lid body to press and hold the membrane element housed in the casing main body. The membrane casing has a simple configuration capable of watertightly securing using a predetermined pressing force by accommodating variations in size of the membrane element, even if the membrane casing cannot be formed into a cylindrical shape.Type: ApplicationFiled: March 10, 2015Publication date: January 19, 2017Applicant: KUBOTA CORPORATIONInventors: Keishi WATANABE, Shintaro NISHIMOTO, Tetsuya UENAKA
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Patent number: D652103Type: GrantFiled: March 26, 2010Date of Patent: January 10, 2012Assignee: Kubota CorporationInventors: Yasunobu Okajima, Tomokazu Kitano, Tadao Shinkai, Hidetoshi Masutani, Tetsuya Uenaka, Yoshio Asakura, Kazuo Nanri, Youichirou Hirose
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Patent number: D652480Type: GrantFiled: March 26, 2010Date of Patent: January 17, 2012Assignee: Kubota CorporationInventors: Yasunobu Okajima, Tomokazu Kitano, Tadao Shinkai, Hidetoshi Masutani, Tetsuya Uenaka, Yoshio Asakura, Kazuo Nanri, Youichirou Hirose
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Patent number: D652481Type: GrantFiled: March 26, 2010Date of Patent: January 17, 2012Assignee: Kubota CorporationInventors: Yasunobu Okajima, Tomokazu Kitano, Tadao Shinkai, Hidetoshi Masutani, Tetsuya Uenaka, Yoshio Asakura, Kazuo Nanri, Youichirou Hirose
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Patent number: D764019Type: GrantFiled: February 20, 2015Date of Patent: August 16, 2016Assignee: KUBOTA CORPORATIONInventors: Keishi Watanabe, Shintaro Nishimoto, Tetsuya Uenaka