Patents by Inventor Mamoru Urushizaki
Mamoru Urushizaki 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: 9926926Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.Type: GrantFiled: January 6, 2016Date of Patent: March 27, 2018Assignee: DENSO CORPORATIONInventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
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Patent number: 9840995Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.Type: GrantFiled: January 30, 2015Date of Patent: December 12, 2017Assignee: DENSO CORPORATIONInventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
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Patent number: 9726128Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.Type: GrantFiled: March 29, 2012Date of Patent: August 8, 2017Assignee: DENSO CORPORATIONInventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
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Publication number: 20160115953Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.Type: ApplicationFiled: January 6, 2016Publication date: April 28, 2016Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
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Patent number: 9261061Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.Type: GrantFiled: March 29, 2012Date of Patent: February 16, 2016Assignee: DENSO CORPORATIONInventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
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Publication number: 20150139825Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.Type: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: Masatoshi Kuroyanagi, Mamoru Urushizaki, Yasuaki Matsunaga
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Publication number: 20120247591Abstract: A high-pressure pump is comprised of a lower housing, an upper housing and a cover, which are formed independently from each other. Thereby, shapes of the above can be simplified. Although the cylinder and the plunger receive a fuel pressure during a pressurization stroke, the upper housing and the cover do not receive fuel pressure directly from a pressurization chamber. Therefore, the upper housing and the cover can be made thin and light as much as possible.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: DENSO CORPORATIONInventors: Masatoshi KUROYANAGI, Mamoru Urushizaki, Yasuaki Matsunaga, Shinobu Oikawa, Noriya Matsumoto
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Publication number: 20120251363Abstract: During a pressurization stroke of a high-pressure pump, a cylinder inner wall and a plunger receive a fuel pressure from the pressurization chamber. Meanwhile, an upper housing does not receive the fuel pressure from the pressurization chamber, so that its thickness can be made thin. A cylinder is comprised of a bottom portion, a cylindrical portion and a large-diameter cylindrical portion. When inserting the large-diameter cylindrical portion into a large engaging hole, the bottom portion and the cylindrical portion are not brought into contact with a lower housing. A high liquid-tightness between the bottom portion, the cylindrical portion and a small engaging hole can be ensured.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: DENSO CORPORATIONInventors: Masatoshi KUROYANAGI, Mamoru Urushizaki, Yasuaki Matsunaga
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Patent number: 7053328Abstract: A film-coated wire is wound around a terminal at least one turn and pressed by an upper electrode of a resistance welding machine. A current is passed through the upper electrode when the wire is pressed, and heat is produced. The heat melts a film on the wire. The current is passed between the upper electrode and the lower electrode via the wire and the terminal to connect the wire with the terminal by resistance welding. A contact area between the wire and the terminal is increased by winding the wire around the terminal. Therefore, the wire is less likely to shift its position when a force is applied by the upper electrode. This increases reliability of the connection. Moreover, the terminal is reduced in size because it is not required to be formed in a U-shape.Type: GrantFiled: May 15, 2003Date of Patent: May 30, 2006Assignee: DENSO CorporationInventors: Atsuo Kikuchi, Mamoru Urushizaki, Hiroyasu Kanamori
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Patent number: 6855409Abstract: There is provided a method for connecting an insulator coated wire with a conductive member while keeping the electrical resistance low and enough joint strength at the joint section therebetween without removing the coating film of the insulator coated wire beforehand. The conductive member has upper and lower pieces which pinch the insulator coated wire, and a gap between the upper and lower pieces varies at different locations. The wire and the conductive member have a good electrical connection at a region of the joint section where the gap between the upper and lower pieces is narrow. In addition, the connection strength of the wire and the conductive member can be enhanced at a region of the joint section where the gap between the upper and lower pieces is wide.Type: GrantFiled: May 15, 2000Date of Patent: February 15, 2005Assignee: DENSO CorporationInventors: Mamoru Urushizaki, Katsumi Nakazawa, Masato Ichikawa, Masami Kojima
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Publication number: 20040150390Abstract: A detector for detecting rotational speed of a vehicle wheel includes a detector element disposed in a housing and a lead wire for sending output signals of the detector element to an outside device. An output terminal of the detector element is electrically connected to the lead wire by tungsten inert gas welding. The housing and the lead wire are molded together with a resin material that forms an outer wall of the detector. Since the lead wire and the output terminal are connected by the tungsten inert gas welding, the junction is protected from any damages due to pressure and heat generated in the molding process.Type: ApplicationFiled: December 30, 2003Publication date: August 5, 2004Applicant: DENSO CORPORATIONInventors: Hiroyuki Tsuge, Mitsuru Takasaki, Mamoru Urushizaki
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Publication number: 20030213775Abstract: A film-coated wire is wound around a terminal at least one turn and pressed by an upper electrode of a resistance welding machine. A current is passed through the upper electrode when the wire is pressed, and heat is produced. The heat melts a film on the wire. The current is passed between the upper electrode and the lower electrode via the wire and the terminal to connect the wire with the terminal by resistance welding. A contact area between the wire and the terminal is increased by winding the wire around the terminal. Therefore, the wire is less likely to shift its position when a force is applied by the upper electrode. This increases reliability of the connection. Moreover, the terminal is reduced in size because it is not required to be formed in a U-shape.Type: ApplicationFiled: May 15, 2003Publication date: November 20, 2003Inventors: Atsuo Kikuchi, Mamoru Urushizaki, Hiroyasu Kanamori
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Patent number: 6459177Abstract: The invention provides a rotary electric machine and method of manufacturing same, having a plurality of conductor segments inserted in a plurality of slots of a stator core. The conductor segments are welded together at adjacent connection ends by a welding arc so that the welding arc forms melted portions. The melted portions form vestiges that swell in a circumferential direction.Type: GrantFiled: July 20, 2000Date of Patent: October 1, 2002Assignee: Denso CorporationInventors: Shigenobu Nakamura, Mamoru Urushizaki, Mitsuru Katoh, Mitsuaki Taira
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Patent number: 6403921Abstract: A method of welding a plurality of connection ends of a plurality of copper segments forming a circumferentially disposed stator winding of a rotary electric machine. The method includes a step of inserting a protection member between connection ends of adjacent two of the plurality of copper segments, a step of activating a welder tool, and a step of circumferentially moving the welder tool relative to the connection ends.Type: GrantFiled: January 14, 2000Date of Patent: June 11, 2002Assignee: Denso CorporationInventors: Kazutaka Maeda, Mitsuru Kato, Mitsuaki Taira, Kimihiro Kuno, Mamoru Urushizaki
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Patent number: 6163011Abstract: A first member (11) and a second member (12) of metal materials of different kinds are overlapped one upon the other, and the surface of the first member (11) is irradiated with a laser beam to form a melt-solidified portion (2). The melt-solidified portion (2) has a nearly inverted triangular shape in cross section becoming gradually narrow toward the inside from the front surface side of the first member (11), and has a low-hardness layer (21) on the front surface side and a high-hardness layer (22) on the inside. The high-hardness layer (22) has a welded structure in which first layers (23) and second layers (24) having a hardness smaller than that of said first layers (23) are alternatingly laminated in the direction in which the welding proceeds.Type: GrantFiled: December 11, 1998Date of Patent: December 19, 2000Assignee: Denso CorporationInventors: Mamoru Urushizaki, Takashi Ogata, Yoshinori Ohmi, Hideaki Shirai, Yutaka Niwa
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Patent number: 5758624Abstract: An ignition coil is composed of a transformer, an igniter, a housing accommodating them and a fixing portion disposed at a place within easy access from an opening of the housing to fix the igniter, a terminal pin disposed at a place of the housing within easy access from the opening and connected to the control circuit and a connector pin fixed to the housing and connected to the terminal pin. The igniter and fixing portion have a member for adjusting relative location therebetween to connect the connector pin and terminal pin without stress.Type: GrantFiled: February 20, 1997Date of Patent: June 2, 1998Assignee: Denso CorporationInventors: Yoshitaka Satou, Kazutoyo Oosuka, Masami Kojima, Masato Ichikawa, Mamoru Urushizaki
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Patent number: 5657203Abstract: In order to provide an electronic device that has high package density and can facilitate electrical connection between a plurality of circuit boards therein, the electronic device comprises a frame having two mutually opposed openings through major planes, a plurality of circuit boards disposed in the frame parallel to the major plane, and mounted selected electronic circuits thereon respectively, and first and second closure lids for closing the openings in the major plane; the first closure lid contacting with the surface of at least one of the circuit boards, on which no electronic circuit is mounted. Also, on the inner wall of the frame; appropriate stepped portions are formed for supporting the closure lid member, the supporting plate, the circuit board and so forth, Furthermore, in the stepped portion, a portion to accommodate an excess amount of an adhesive is provided.Type: GrantFiled: March 6, 1995Date of Patent: August 12, 1997Assignee: Nippondenso Co., Ltd.Inventors: Yasunobu Hirao, Takashi Nagasaka, Hidekazu Katsuyama, Makoto Koyama, Yuji Motoyama, Mamoru Urushizaki, Yukihiro Maeda
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Patent number: 5408383Abstract: In order to provide an electronic device that has high package density and can facilitate electrical connection between a plurality of circuit boards therein, the electronic device comprises a frame having two mutually opposed openings through major planes, a plurality of circuit boards disposed in the frame parallel to the major plane, and mounted selected electronic circuits thereon respectively, and first and second closure lids for closing the openings in the major plane; the first closure lid contacting with the surface of at least one of the circuit boards, on which no electronic circuit is mounted. Also, on the inner wall of the frame; appropriate stepped portions are formed for supporting the closure lid member, the supporting plate, the circuit board and so forth, Furthermore, in the stepped portion, a portion to accommodate an excess amount of an adhesive is provided.Type: GrantFiled: September 10, 1993Date of Patent: April 18, 1995Assignee: Nippondenso Co., Ltd.Inventors: Takashi Nagasaka, Yuji Motoyama, Yasunobu Hirao, Makoto Koyama, Mamoru Urushizaki, Hidekazu Katsuyama, Yukihiro Maeda