Patents by Inventor Masanori Onuma
Masanori Onuma 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: 20120146659Abstract: There is provided a method of evaluating a clamping portion of an electric wire and a terminal, which can determine whether a clamping quality is good, or not, through simple test, and can easily test all of the clamping portions. The method of evaluating the clamping portion of an electric wire (W) and a terminal (10) includes measuring a length (L1) of the terminal (10) after clamping to detect an expansion of the terminal (10) after clamping to a length (L0) of the terminal (10) before clamping, determining that the clamping quality is “good” when the expansion falls within an allowable range between a given lower limit and a given upper limit, and determining that the clamping quality is “no good” when the expansion falls outside the allowable range.Type: ApplicationFiled: June 15, 2010Publication date: June 14, 2012Applicant: YAZAKI CORPORATIONInventor: Masanori Onuma
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Publication number: 20120124826Abstract: There is provided a terminal crimping apparatus which can detect a crimping failure mode which produces a transversely asymmetrical crimped shape in a crimped product. The terminal crimping apparatus includes an anvil (102A) which is a lower die on which a conductor crimping portion (11) of a terminal (10) is place and a crimper (101A) which is an upper die which bends inwards a pair of left and right crimping pieces (11L, 11R) of the conductor crimping portion (11), and the terminal crimping apparatus further includes a detection device which detects a transversely unbalanced load in the upper and lower dies (101A, 101B) in a crimping process in which the upper die (101A) is pressed down towards the lower die (102A) so as to crimp the pair of left and right crimping pieces (11L, 11R) on to a conductor (Wa) of an electric wire so as to crimp the conductor (Wa).Type: ApplicationFiled: June 22, 2010Publication date: May 24, 2012Applicant: YAZAKI CORPORATIONInventors: Masanori Onuma, Kosuke Takemura
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Patent number: 7803008Abstract: A press-clamping structure includes: a wire; and a press-clamping terminal which includes a conductor press-clamping portion having a generally U-shaped cross-section. The conductor press-clamping portion includes a bottom plate and a pair of conductor caulking pieces which are bent inwardly to embrace the conductor of the wire and caulk the conductor. Distal end portions of the conductor caulking pieces are bent outwardly in a opposite direction to each other. When P1 represents a point closest to the bottom plate on an area in which the outer surfaces of the conductor caulking pieces are contacted with each other, and P2 represents a point closest to the bottom plate on the distal end portion of each of the conductor caulking piece, a formula Lh<Lw is established where Lh represents a height from the point P2 to the point P1, and Lw represents a distance between the respective points P2.Type: GrantFiled: October 30, 2008Date of Patent: September 28, 2010Assignee: Yazaki CorporationInventor: Masanori Onuma
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Patent number: 7777133Abstract: A joint structure of electric wires includes: a copper wire which includes a conductor formed of copper; an aluminum wire which includes a conductor formed of aluminum or aluminum alloy; and a joint terminal provided with a conductor press-fitting part having a U-shape in cross section. The conductor press-fitting part includes a bottom plate and a pair of conductor caulking pieces which are upwardly extended from both side edges of the bottom plate, and is inwardly folded to caulk the conductors of the copper wires and the aluminum wires so as to enclose the conductors. The conductor press-fitting part is press-fitted to the conductors of the aluminum wire and the copper wire in a state that the conductor of the aluminum wire is disposed on the upper face of the bottom plate, and the conductor of the copper wire is disposed on the conductor of the aluminum wire.Type: GrantFiled: October 29, 2008Date of Patent: August 17, 2010Assignee: Yazaki CorporationInventor: Masanori Onuma
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Patent number: 7705265Abstract: After bringing a conductor of an electric wire into press contact to connect with a wire caulking portion of a connection terminal, the conductor and the wire caulking portion are welded to connect by irradiating laser beam to a bottom wall of the wire caulking portion. Laser irradiation is carried out intermittently by three times and the laser irradiation at the second time and thereafter which is carried out later is carried out such that during a time period in which a laser welded portion immediately previously is brought into a predetermined state of elevating temperature, portions or welded regions overlap welded regions in laser irradiation irradiated previously.Type: GrantFiled: November 3, 2005Date of Patent: April 27, 2010Assignee: Yazaki CorporationInventors: Nobuyuki Asakura, Kei Fujimoto, Masanori Onuma
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Patent number: 7632144Abstract: A coaxial cable with a terminal is formed by attaching the terminal to an end of the coaxial cable. A braided conductor at the end of the coaxial cable 1 is folded and covers the insulating sheath. A sleeve covers the braided conductor covering the insulating sheath. All around the sleeve is pressed equally. The terminal is attached to the sleeve.Type: GrantFiled: March 1, 2007Date of Patent: December 15, 2009Assignee: Yazaki CorporationInventors: Tadahisa Sakaguchi, Masanori Onuma, Nobuyuki Asakura
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Patent number: 7562449Abstract: Inwardly-directed projecting portions (2, 3) are formed in a bent manner respectively at distal ends of a pair of clamping piece portions (4, 5) which are continuous with each other, and form a wire connection portion (7) of a terminal (1). A conductor portion (9) of a wire (8) is located on the inner sides of the pair of clamping piece portions (4, 5), and the pair of clamping piece portions are pressed over an entire periphery into a circular shape, and are extended in a peripheral direction, thereby causing projecting extension portions (2?, 3?), including the projecting portions (2, 3), to bite into the conductor portion. Before the pressing operation, the pair of clamping piece portions (4, 5) may be provisionally pressed to be curved, thereby causing distal ends of the projecting portions (2, 3) to bite slightly into an outer peripheral surface of the conductor portion (9).Type: GrantFiled: September 30, 2004Date of Patent: July 21, 2009Assignee: Yazaki CorporationInventors: Yasumichi Kuwayama, Masanori Onuma, Nobuyuki Asakura
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Publication number: 20090137144Abstract: A press-clamping structure includes: a wire; and a press-clamping terminal which includes a conductor press-clamping portion having a generally U-shaped cross-section. The conductor press-clamping portion includes a bottom plate and a pair of conductor caulking pieces which are bent inwardly to embrace the conductor of the wire and caulk the conductor. Distal end portions of the conductor caulking pieces are bent outwardly in a opposite direction to each other. When P1 represents a point closest to the bottom plate on an area in which the outer surfaces of the conductor caulking pieces are contacted with each other, and P2 represents a point closest to the bottom plate on the distal end portion of each of the conductor caulking piece, a formula Lh<Lw is established where Lh represents a height from the point P2 to the point P1, and Lw represents a distance between the respective points P2.Type: ApplicationFiled: October 30, 2008Publication date: May 28, 2009Applicant: YAZAKI CORPORATIONInventor: Masanori ONUMA
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Publication number: 20090133927Abstract: A joint structure of electric wires includes: a copper wire which includes a conductor formed of copper; an aluminum wire which includes a conductor formed of aluminum or aluminum alloy; and a joint terminal provided with a conductor press-fitting part having a U-shape in cross section. The conductor press-fitting part includes a bottom plate and a pair of conductor caulking pieces which are upwardly extended from both side edges of the bottom plate, and is inwardly folded to caulk the conductors of the copper wires and the aluminum wires so as to enclose the conductors. The conductor press-fitting part is press-fitted to the conductors of the aluminum wire and the copper wire in a state that the conductor of the aluminum wire is disposed on the upper face of the bottom plate, and the conductor of the copper wire is disposed on the conductor of the aluminum wire.Type: ApplicationFiled: October 29, 2008Publication date: May 28, 2009Applicant: YAZAKI CORPORATIONInventor: Masanori ONUMA
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Patent number: 7392656Abstract: A steam turbine plant includes an extraction system and a control system for controlling the steam extraction. The extraction system includes an extraction steam flowmeter and a stop valve. The control system sets a warning flow and an extracted steam stop flow for the extracted steam. When the extracted steam flow reaches the warning flow, a warning is issued and after a lapse of a predetermined time period, the stop valve is opened to restrict the extracted steam flow. When the extracted steam flow reaches the extracted steam stop flow, the stop valve is closed to stop steam extraction. A steam turbine plant can thus exercise extraction control to stably supply extracted steam while avoiding turbine trip, even if not equipped with a high-performance and expensive valve device such as an extraction steam control valve.Type: GrantFiled: May 17, 2007Date of Patent: July 1, 2008Assignee: Hitachi, Ltd.Inventors: Masanori Onuma, Naoto Koizumi
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Patent number: 7374466Abstract: A method of connecting a terminal fitting and an electric wire, includes the steps of: providing a terminal fitting; providing an electric wire in which a core wire is covered with an insulating sheath; providing a conductive connecting member formed with an insertion hole; inserting the electric wire into the insertion hole of the connecting member; compressing the connecting member radially inwardly so as to caulk an inserted portion of the electric wire uniformly over a whole periphery thereof; and welding the connecting member and the terminal fitting by applying ultrasonic wave.Type: GrantFiled: August 6, 2003Date of Patent: May 20, 2008Assignee: Yazaki CorporationInventors: Masanori Onuma, Kei Fujimoto
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Patent number: 7354283Abstract: A wire-connecting device including a joint terminal for connecting an inner conductor of a coaxial cable and a core wire of an electric wire, and a heat-shrinkable member for covering at least the joint terminal and a cut edge of a braided wire of the coaxial cable exposed at the joint terminal.Type: GrantFiled: July 25, 2006Date of Patent: April 8, 2008Assignee: Yazaki CorporationInventors: Masanori Onuma, Tadahisa Sakaguchi, Jun Uchida
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Publication number: 20070266710Abstract: A steam turbine plant includes an extraction system and a control system for controlling the steam extraction. The extraction system includes an extraction steam flowmeter and a stop valve. The control system sets a warning flow and an extracted steam stop flow for the extracted steam. When the extracted steam flow reaches the warning flow, a warning is issued and after a lapse of a predetermined time period, the stop valve is opened to restrict the extracted steam flow. When the extracted steam flow reaches the extracted steam stop flow, the stop valve is closed to stop steam extraction. A steam turbine plant can thus exercise extraction control to stably supply extracted steam while avoiding turbine trip, even if not equipped with a high-performance and expensive valve device such as an extraction steam control valve.Type: ApplicationFiled: May 17, 2007Publication date: November 22, 2007Inventors: Masanori ONUMA, Naoto KOIZUMI
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Publication number: 20070249225Abstract: A coaxial cable with a terminal is formed by attaching the terminal to an end of the coaxial cable. A braided conductor at the end of the coaxial cable 1 is folded and covers the insulating sheath. A sleeve covers the braided conductor covering the insulating sheath. All around the sleeve is pressed equally. The terminal is attached to the sleeve.Type: ApplicationFiled: March 1, 2007Publication date: October 25, 2007Applicant: YAZAKI CORPORATIONInventors: Tadahisa Sakaguchi, Masanori Onuma, Nobuyuki Asakura
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Publication number: 20070184715Abstract: The invention comprises filling a conductive adhesive on a hole end of a wire connection part in tubular shape of the terminal which has an electric contact part at one side and the wire connection part at the other side, inserting an electric wire from a hole opening of the wire connection part toward the hole end, and reducing evenly a size of a tubular wall of the wire connection part, thereby causing the conductive adhesive to infiltrate into a space of the electric contact part or between wires. The invention also comprises tightening the tubular wall of the wire connection part by a rotary swaging process. Further, the conductive adhesive is a nickel paste which is a mixture of nickel powders in a liquid epoxy resin based binder. In addition, at least one of a core wire portion of the electric wire or the terminal is aluminum or aluminum alloy.Type: ApplicationFiled: December 29, 2006Publication date: August 9, 2007Inventor: Masanori ONUMA
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Publication number: 20070072455Abstract: A wire-connecting device including a joint terminal for connecting an inner conductor of a coaxial cable and a core wire of an electric wire, and a heat-shrinkable member for covering at least the joint terminal and a cut edge of a braided wire of the coaxial cable exposed at the joint terminal.Type: ApplicationFiled: July 25, 2006Publication date: March 29, 2007Applicant: YAZAKI CORPORATIONInventors: Masanori Onuma, Tadahisa Sakaguchi, Jun Uchida
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Patent number: 7174633Abstract: The invention comprises filling a conductive adhesive on a hole end of a wire connection part in tubular shape of the terminal which has an electric contact part at one side and the wire connection part at the other side, inserting an electric wire from a hole opening of the wire connection part toward the hole end, and reducing evenly a size of a tubular wall of the wire connection part, thereby causing the conductive adhesive to infiltrate into a space of the electric contact part or between wires. The invention also comprises tightening the tubular wall of the wire connection part by a rotary swaging process. Further, the conductive adhesive is a nickel paste which is a mixture of nickel powders in a liquid epoxy resin based binder. In addition, at least one of a core wire portion of the electric wire or the terminal is aluminum or aluminum alloy.Type: GrantFiled: December 22, 2003Date of Patent: February 13, 2007Assignee: Yazaki CorporationInventor: Masanori Onuma
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Patent number: 7121903Abstract: The terminal includes a front portion, a middle portion, and a rear portion. The rear portion is opened and has a pair of upright segments. The front portion is a shape of hollow cylinder and has bent tips. The middle portion is partly opened and an inner edge thereof has a collapsed or chamfered face. A step H is disposed between the rear portion and the front portion so that the middle portion is downwardly tapered to the rear portion. A through-hole is disposed at inner wall of the middle portion close to the rear portion for a part of the core wires, preferably edges of the covers also, to be visible through the through-hole.Type: GrantFiled: September 20, 2005Date of Patent: October 17, 2006Assignee: Yazaki CorporationInventors: Tadahisa Sakaguchi, Masanori Onuma, Nobuyuki Asakura
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Patent number: 7115006Abstract: A braiding portion and a sheath portion of a coaxial cable are positioned at predetermined locations on a fixture plate portion by making use of a positioning line formed on the fixture plate portion as a mark corresponding to a boundary between the braiding portion and the sheath portion. In addition, the sheath portion so positioned is pressed into second clamping barrels by taper portions of a jig member which are passed through holes formed in the fixture plate portion, and in association with this, the braiding portion is also pressed into a first clamping barrel.Type: GrantFiled: January 30, 2006Date of Patent: October 3, 2006Assignee: Yazaki CorporationInventor: Masanori Onuma
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Publication number: 20060189184Abstract: A braiding portion and a sheath portion of a coaxial cable are positioned at predetermined locations on a fixture plate portion by making use of a positioning line formed on the fixture plate portion as a mark corresponding to a boundary between the braiding portion and the sheath portion. In addition, the sheath portion so positioned is pressed into second clamping barrels by taper portions of a jig member which are passed through holes formed in the fixture plate portion, and in association with this, the braiding portion is also pressed into a first clamping barrel.Type: ApplicationFiled: January 30, 2006Publication date: August 24, 2006Inventor: Masanori Onuma