Patents by Inventor Seiichi Sue
Seiichi Sue 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: 20180328239Abstract: A communicating hole, which communicates between a clearance space and the outside of a cover member, is formed in the cover member, and a seal cap is fitted to and retained in a distal-end opening of the communicating hole. The seal cap includes a cap main body having a ventilation through hole formed in an internal axial direction and an outer peripheral wall configured to engage with the communicating hole, a supporting portion fitted, from the outside, into a recessed groove formed in an outside end face of the cap main body, and a ventilation filter located on a bottom face of the recessed groove and retained and sandwiched between the cap main body and the supporting portion. Therefore, an internal pressure rise in the clearance space between the cover member and an electric motor can be effectively suppressed, and thus improved mountability and retainability can be obtained.Type: ApplicationFiled: November 27, 2015Publication date: November 15, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ryo TADOKORO, Isao DOI, Hiroyuki NEMOTO, Seiichi SUE
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Patent number: 9683465Abstract: A valve-timing control apparatus varies a relative phase between a cam shaft and a crankshaft by energizing an electric motor through a power-feeding brush provided to be in contact with a slip ring. The valve-timing control apparatus includes a retaining member slidably retaining the power-feeding brush; a connector provided in the retaining member and connected to a power source; a pigtail harness including one end portion connected with the power-feeding brush, and another end portion connected with a terminal of the connector through a fixing portion; and a guide portion provided in the retaining member and including an outer circumferential surface formed in an arc-shape. The pigtail harness bends along the outer circumferential surface of the guide portion. The another end portion extends substantially in a linear arrangement from the fixing portion to a bending portion at which the pigtail harness bends along the outer circumferential surface.Type: GrantFiled: May 29, 2015Date of Patent: June 20, 2017Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ryo Tadokoro, Seiichi Sue, Shinichi Kawada, Hiroyuki Nemoto, Isao Doi
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Publication number: 20150345346Abstract: A valve-timing control apparatus varies a relative phase between a cam shaft and a crankshaft by energizing an electric motor through a power-feeding brush provided to be in contact with a slip ring. The valve-timing control apparatus includes a retaining member slidably retaining the power-feeding brush; a connector provided in the retaining member and connected to a power source; a pigtail harness including one end portion connected with the power-feeding brush, and another end portion connected with a terminal of the connector through a fixing portion; and a guide portion provided in the retaining member and including an outer circumferential surface formed in an arc-shape. The pigtail harness bends along the outer circumferential surface of the guide portion. The another end portion extends substantially in a linear arrangement from the fixing portion to a bending portion at which the pigtail harness bends along the outer circumferential surface.Type: ApplicationFiled: May 29, 2015Publication date: December 3, 2015Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ryo TADOKORO, Seiichi Sue, Shinichi Kawada, Hiroyuki Nemoto, Isao Doi
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Patent number: 8701619Abstract: An internal combustion engine piston includes a piston crown, a thrust-side skirt, an anti-thrust-side skirt, a first apron, and a second apron. The first and second aprons are connected to the thrust-side and anti-thrust-side skirts through connecting sections. Each connecting section has a thickness that gradually increases as followed from a proximal longitudinal end to a distal longitudinal end, wherein the proximal longitudinal end is closer to the piston crown, and the distal longitudinal end is closer to a distal longitudinal end of a corresponding one of the thrust-side and anti-thrust-side skirts.Type: GrantFiled: May 17, 2012Date of Patent: April 22, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kazuya Iwata, Seiichi Sue
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Publication number: 20120227701Abstract: An internal combustion engine piston includes a piston crown, a thrust-side skirt, an anti-thrust-side skirt, a first apron, and a second apron. The first and second aprons are connected to the thrust-side and anti-thrust-side skirts through connecting sections. Each connecting section has a thickness that gradually increases as followed from a proximal longitudinal end to a distal longitudinal end, wherein the proximal longitudinal end is closer to the piston crown, and the distal longitudinal end is closer to a distal longitudinal end of a corresponding one of the thrust-side and anti-thrust-side skirts.Type: ApplicationFiled: May 17, 2012Publication date: September 13, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kazuya IWATA, Seiichi Sue
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Patent number: 8220432Abstract: An internal combustion engine piston includes a piston crown, a thrust-side skirt, an anti-thrust-side skirt, a first apron, and a second apron. The first and second aprons are connected to the thrust-side and anti-thrust-side skirts through connecting sections. Each connecting section has a thickness that gradually increases as followed from a proximal longitudinal end to a distal longitudinal end, wherein the proximal longitudinal end is closer to the piston crown, and the distal longitudinal end is closer to a distal longitudinal end of a corresponding one of the thrust-side and anti-thrust-side skirts.Type: GrantFiled: March 10, 2010Date of Patent: July 17, 2012Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kazuya Iwata, Seiichi Sue
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Publication number: 20100229820Abstract: An internal combustion engine piston includes a piston crown, a thrust-side skirt, an anti-thrust-side skirt, a first apron, and a second apron. The first and second aprons are connected to the thrust-side and anti-thrust-side skirts through connecting sections. Each connecting section has a thickness that gradually increases as followed from a proximal longitudinal end to a distal longitudinal end, wherein the proximal longitudinal end is closer to the piston crown, and the distal longitudinal end is closer to a distal longitudinal end of a corresponding one of the thrust-side and anti-thrust-side skirts.Type: ApplicationFiled: March 10, 2010Publication date: September 16, 2010Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kazuya Iwata, Seiichi Sue
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Patent number: 6705281Abstract: A piston for an internal combustion engine is provided which has at a top surface thereof a cavity for causing a mixture charge drawn from an intake port into a combustion chamber so as to flow with a rotational motion about a horizontal axis to flow toward a spark plug. A combustion chamber structure for an internal combustion engine is also provided.Type: GrantFiled: April 25, 2002Date of Patent: March 16, 2004Assignee: Unisia Jecs CorporationInventors: Eiji Okamura, Seiichi Sue, Hidehiko Koyashiki, Kazumitsu Kobayashi
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Publication number: 20020157638Abstract: A piston for an internal combustion engine is provided which has at a top surface thereof a cavity for causing a mixture charge drawn from an intake port into a combustion chamber so as to flow with a rotational motion about a horizontal axis to flow toward a spark plug. A combustion chamber structure for an internal combustion engine is also provided.Type: ApplicationFiled: April 25, 2002Publication date: October 31, 2002Applicant: UNISIA JECS CORPORATIONInventors: Eiji Okamura, Seiichi Sue, Hidehiko Koyashiki, Kazumitsu Kobayashi