Patents by Inventor Shinsuke Tsutsui
Shinsuke Tsutsui 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: 10530250Abstract: Provided is a multiphase converter having a plurality of voltage conversion units, and is configured to protect the faulty phase and continue driving using another phase when an abnormality occurs in any phase. A DC-DC converter includes a plurality of voltage conversion units that are in parallel between an input-side conductive path and an output-side conductive path. A control unit subjects the plurality of voltage conversion units to a test operation in which a duty ratio of a PWM signal for each voltage conversion unit is changed. The control unit identifies an abnormal voltage conversion unit based on at least one of the states of the electric current, the voltage, and the temperature of the multiphase conversion unit during this test period, and causes the remaining voltage conversion unit other than the identified abnormal voltage conversion unit to perform voltage conversion.Type: GrantFiled: August 31, 2016Date of Patent: January 7, 2020Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Shinsuke Tsutsui, Seiji Takahashi, Takanori Itou
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Publication number: 20180309363Abstract: Provided is a multiphase converter having a plurality of voltage conversion units, and is configured to protect the faulty phase and continue driving using another phase when an abnormality occurs in any phase. A DC-DC converter includes a plurality of voltage conversion units that are in parallel between an input-side conductive path and an output-side conductive path. A control unit subjects the plurality of voltage conversion units to a test operation in which a duty ratio of a PWM signal for each voltage conversion unit is changed. The control unit identifies an abnormal voltage conversion unit based on at least one of the states of the electric current, the voltage, and the temperature of the multiphase conversion unit during this test period, and causes the remaining voltage conversion unit other than the identified abnormal voltage conversion unit to perform voltage conversion.Type: ApplicationFiled: August 31, 2016Publication date: October 25, 2018Inventors: Shinsuke Tsutsui, Seiji Takahashi, Takanori Itou
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Publication number: 20180287500Abstract: Provided is a multiphase DC-DC converter having a plurality of voltage conversion units, and detect an abnormality in any phase and to remain activated with a phase other than the faulty phase while the faulty phase is reliably protected. A DC-DC converter includes a plurality of voltage conversion units that are in parallel between an input-side conductive path and an output-side conductive path. Each of the voltage conversion units includes on an individual input path, a protective switch element, and a protective switch element disposed on an individual output path. The DC-DC converter further includes a protective abnormality identifying unit configured to identify a range in which a protective switch element is abnormal, and an operation control unit configured to cause, if the range in which a protective switch element is abnormal has been identified, any remaining conversion unit other than the range to perform a voltage conversion operation.Type: ApplicationFiled: August 31, 2016Publication date: October 4, 2018Inventors: Shinsuke Tsutsui, Seiji Takahashi, Takanori Itou
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Patent number: 7156649Abstract: A fixed mold (10) has engaging pins (17) projecting towards a movable mold (20). Each engaging pin (17) includes a shaft (17A) and a large-diameter portion (17C) formed at the leading end of the shaft (17A). The large-diameter portions (17C) of the engaging pins (17) interfere with the bottom surfaces of recesses (53) of an ejector plate (50) in the process of separating the movable mold (20). Thus, the ejector plate (50) is moved forward relative to the movable mold (20) and leading ends of ejector pins (90) project from the movable mold (20).Type: GrantFiled: August 4, 2004Date of Patent: January 2, 2007Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Naoya Hattori, Seiichi Kurosawa, Shinsuke Tsutsui, Toshiya Muraki, Yumiko Muramoto
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Publication number: 20050031729Abstract: A fixed mold (10) has engaging pins (17) projecting towards a movable mold (20). Each engaging pin (17) includes a shaft (17A) and a large-diameter portion (17C) formed at the leading end of the shaft (17A). The large-diameter portions (17C) of the engaging pins (17) interfere with the bottom surfaces of recesses (53) of an ejector plate (50) in the process of separating the movable mold (20). Thus, the ejector plate (50) is moved forward relative to the movable mold (20) and leading ends of ejector pins (90) project from the movable mold (20).Type: ApplicationFiled: August 4, 2004Publication date: February 10, 2005Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Naoya Hattori, Seiichi Kurosawa, Shinsuke Tsutsui, Toshiya Muraki, Yumiko Muramoto
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Patent number: 6206681Abstract: A movable mold is movable toward and away from a fixed mold so as to close and open the mold. The fixed mold includes an intermediate plate facing a movable-side mold plate. This intermediate plate has a retainer-molding recess which cooperates with the movable-side mold plate to form a retainer-molding cavity, and a core pin, which cooperates with a housing-molding recess to form a housing-molding cavity, is mounted on the intermediate plate. A retainer, molded in the molding cavity, is moved downward by an ejector pin into a position where the retainer is disposed coaxial with a housing. Then, the two molds are again closed together, so that the housing and the retainer are connected together, and then this assembled product is taken out.Type: GrantFiled: February 9, 1999Date of Patent: March 27, 2001Assignee: Sumitomo WiringInventors: Hajime Kawase, Osamu Sasai, Yasunori Wada, Shinsuke Tsutsui, Hikaru Ito
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Patent number: 6183314Abstract: A connector is provided that retains a terminal fitting when a retainer is attached to a connector housing from the side. The connector housing has a cavity into which a terminal fitting is inserted and a retainer insertion hole. The retainer is attached to the connector housing from the side through the retainer insertion hole. The retainer insertion hole extends entirely through the connector housing and penetrates from opposing outer side walls of the connector housing. The retainer is displaced between a provisional engaging position and a complete engagement position in which the terminal fitting is locked. The retainer preferably has a same height as the height between the opposing outer side walls.Type: GrantFiled: June 23, 1999Date of Patent: February 6, 2001Assignee: Sumitomo Wiring Systems, LTDInventors: Yasunori Wada, Hikaru Ito, Shinsuke Tsutsui, Hajime Kawase, Osamu Sasai
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Patent number: 6024552Abstract: Under the condition that the stationary metallic mold and the movable metallic mold are closed, the housing is molded into a shape having the retainer insertion hole by the existence of the sliding mold. At same time, a retainer is also molded in the below portion. First, when only the rear metallic mold is opened, the core pin is withdrawn, and at the same time the sliding mold is withdrawn along the advancing and withdrawing passage in the longitudinal direction by the cam action of the angular pin, so that the molding portion is withdrawn from the retainer insertion hole. Successively, when the metallic mold is opened, the sliding mold is relatively drawn out to the front of the advancing and withdrawing passage together with the stationary metallic mold, and the advancing and withdrawing passage becomes open. Next, the auxiliary sliding mold is advanced, and the retainer held by the auxiliary sliding mold is inserted into the retainer insertion hole and temporarily assembled to the housing.Type: GrantFiled: October 30, 1998Date of Patent: February 15, 2000Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasunori Wada, Hikaru Ito, Shinsuke Tsutsui, Hajime Kawase, Osamu Sasai
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Patent number: 5961910Abstract: A moving mold 100 consisting of slidable housing molds 110 and 110 and retainer molds 120 and 120 and a fixed mold 200 pairing with the moving mold 100 are used to mold a housing 20 and retainers 30a and 30b in resin at the same time. When the fixed mold 200 and the moving mold 100 are opened, the housing molds 110 and 110 are opened and a space is formed between the housing 20 and the retainers 30a and 30b to be fitted to each other. The retainers 30a and 30b are pressed against the housing 20 with the retainers 30a and 30b held in the retainer molds 120 and 120 from both the left and right sides, whereby the housing 20 and the retainers 30a and 30b are assembled.Type: GrantFiled: April 1, 1998Date of Patent: October 5, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hikaru Ito, Shinsuke Tsutsui, Yasunori Wada, Osamu Taniuchi, Seiichi Kurosawa
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Patent number: 5915760Abstract: A movable mold is movable toward and away from a fixed mold so as to close and open the mold. The fixed mold includes an intermediate plate facing a movable-side mold plate. This intermediate plate has a retainer-molding recess which cooperates with the movable-side mold plate to form a retainer-molding cavity, and a core pin, which cooperates with a housing-molding recess to form a housing-molding cavity, is mounted on the intermediate plate. A retainer, molded in the molding cavity, is moved downward by an ejector pin into a position where the retainer is disposed coaxial with a housing. Then, the two molds are again closed together, so that the housing and the retainer are connected together, and then this assembled product is taken out.Type: GrantFiled: March 11, 1996Date of Patent: June 29, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hajime Kawase, Osamu Sasai, Yasunori Wada, Shinsuke Tsutsui, Hikaru Ito
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Patent number: 5894661Abstract: When a stationary metallic mold and a movable metallic mold are closed, a housing is molded having a retainer insertion hole by the existence of a sliding mold. A retainer is also molded. First, when only the metallic mold is opened, the core pin is withdrawn, and the sliding mold is withdrawn in the longitudinal direction by the cam action of the angular pin, so that the molding portion is withdrawn from the retainer insertion hole. Successively, the sliding mold is relatively drawn out to the front of the advancing and withdrawing passage together with the stationary metallic mold, and the advancing and withdrawing passage becomes open. Next, an auxiliary sliding mold is advanced, and the retainer held by the auxiliary sliding mold is inserted into the retainer insertion hole and temporarily assembled to the housing. It is possible to insert the retainer straight into the retainer insertion hole. The finished product is protruded to the front of the movable metallic mold by the protruding pin.Type: GrantFiled: March 11, 1996Date of Patent: April 20, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasunori Wada, Hikaru Ito, Shinsuke Tsutsui, Hajime Kawase, Osamu Sasai
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Patent number: 5814356Abstract: A moving mold 100 consisting of slidable housing molds 110 and 110 and retainer molds 120 and 120 and a fixed mold 200 pairing with the moving mold 100 are used to mold a housing 20 and retainers 30a and 30b in resin at the same time. When the fixed mold 200 and the moving mold 100 are opened, the housing molds 110 and 110 are opened and a space is formed between the housing 20 and the retainers 30a and 30b to be fitted to each other. The retainers 30a and 30b are pressed against the housing 20 with the retainers 30a and 30b held in the retainer molds 120 and 120 from both the left and right sides, whereby the housing 20 and the retainers 30a and 30b are assembled.Type: GrantFiled: March 7, 1996Date of Patent: September 29, 1998Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hikaru Ito, Shinsuke Tsutsui, Yasunori Wada, Osamu Taniuchi, Seiichi Kurosawa
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Patent number: 5647777Abstract: A connector assembly includes a connector housing and a retainer that straddles the connector housing. The retainer is attached on the upper face of the connector housing. The retainer includes engagement projections, which engage with terminal pieces in the connector housing, to prevent the retainer from slipping out of the connector housing. The dimensions of the connector are set so a gap is formed between the engagement projections and the outer face of the connector housing. A separation plate of a molding die can be positioned in the gap, so the connector housing and the retainer can be simultaneously molded in an assembled relationship with the retainer separated from the connector housing. A molding die and method of producing the connector assembly are also disclosed.Type: GrantFiled: March 15, 1996Date of Patent: July 15, 1997Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Osamu Sasai, Hajime Kawase, Yasunori Wada, Shinsuke Tsutsui