Patents by Inventor Yasuharu Terada
Yasuharu Terada 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: 20150243954Abstract: A bus bar module includes bus bars and block circuits. A voltage detection circuit included in each block circuit detects voltage values of electric storage elements via lines connected to the respective bus bars. The number of the electric storage elements assigned to a first block circuit is an even number equal to or larger than a minimum number and smaller than a maximum number. The number of the electric storage elements assigned to a second block circuit is equal to or larger than the minimum number and smaller than the maximum number. The number of the electric storage elements assigned to each third block circuit is the maximum number.Type: ApplicationFiled: February 23, 2015Publication date: August 27, 2015Inventors: Yasuharu TERADA, Norio NISHIWAKI, Takayoshi AMANO
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Publication number: 20140335385Abstract: A bus bar module may have a bus bar including a battery side terminal portion and a connection portion. The battery side terminal portion may electrically connect electrode terminals of two adjacent battery cells of a battery assembly. The connection portion may electrically connect the battery side terminal portion and a terminal of a circuit side member associated with the battery assembly. The bus bar may be configured as a single member.Type: ApplicationFiled: May 5, 2014Publication date: November 13, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHAInventors: Masaki IKEYA, Norio NISHIWAKI, Yasuharu TERADA
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Publication number: 20140335386Abstract: A bus bar module may include a circuit side member associated with a battery assembly having a plurality of battery cells arranged next to each other in an arrangement direction, and a bus bar electrically connecting the circuit side member with the battery cells of the battery assembly. A gas discharge duct may be integrated with the circuit side member and configured to allow flow therethrough of gas discharged from safety valves associated with the battery cells.Type: ApplicationFiled: May 5, 2014Publication date: November 13, 2014Applicants: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaki IKEYA, Norio NISHIWAKI, Yasuharu TERADA
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Publication number: 20140286055Abstract: An electric power conversion system includes: a primary electric power conversion circuit including a primary coil connected to a connection point between a plurality of transistors; a secondary electric power conversion circuit configured similarly to the primary electric power conversion circuit and including a secondary coil corresponding to the primary coil; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits. The control circuit executes feedforward control for setting one of an on/off ratio of a terminal voltage signal of the primary coil and an on/off ratio of a terminal voltage signal of the secondary coil, in response to at least one of fluctuations in voltage ratio between both waveforms and fluctuations in phase symmetry between both waveforms, when the terminal voltage waveform of the primary coil and the terminal voltage waveform of the secondary coil are different from each other.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenichi Takagi, Masanori Ishigaki, Takaji Umeno, Takahiro Hirano, Jun Muto, Yasuharu Terada, Kenichiro Nagashita
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Publication number: 20140254209Abstract: An electric power conversion system includes: a primary electric power conversion circuit including primary right and left arms; a secondary electric power conversion circuit including secondary right and left arms; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits by magnetically coupling a primary coil to a secondary coil. The control circuit sets an interphase difference in switching between right and left arm lower transistors in the primary electric power conversion circuit and an interphase difference in switching between right and left arm lower transistors in the secondary electric power conversion circuit on the basis of off times of the primary and secondary electric power conversion circuits such that a phase difference between terminal voltage waveforms of the primary and secondary coils is 0 and duty ratios of the terminal voltage waveforms are equal to each other.Type: ApplicationFiled: February 21, 2014Publication date: September 11, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenichi Takagi, Masanori Ishigaki, Takaji Umeno, Kenichiro Nagashita, Takahiro Hirano, Jun Muto, Yasuharu Terada
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Publication number: 20140132066Abstract: An electric power conversion system includes a primary conversion circuit, and a secondary conversion circuit magnetically coupled to the primary conversion circuit by a transformer. At least one of the primary conversion circuit and the secondary conversion circuit includes a bypass circuit that short-circuits respective ends of a coil constituting the transformer. The primary conversion circuit, the secondary conversion circuit, the bypass circuit, and the transformer are configured such that electric power conversion is performed between any two input/output ports from among four input/output ports formed of two input/output ports of the primary conversion circuit and two input/output ports of the secondary conversion circuit.Type: ApplicationFiled: November 8, 2013Publication date: May 15, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro HIRANO, Yasuharu TERADA
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Patent number: 8490740Abstract: A vehicle includes a PCU serving as a power control unit controlling the electric power for vehicle running, a battery storing the electric power for vehicle running, and an EHC serving as an electrically heated catalyst. The PCU includes a converter, an inverter, and a positive line and a negative line each connecting the converter and the inverter. The converter boosts a voltage VL output from the battery to a requested voltage value VHsys. The EHC has a positive end connected to the positive line. The EHC also has a negative end connected to the negative line.Type: GrantFiled: March 15, 2010Date of Patent: July 23, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keita Hashimoto, Katsumi Tsuchida, Yasuharu Terada
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Publication number: 20120125705Abstract: A vehicle includes a PCU serving as a power control unit controlling the electric power for vehicle running, a battery storing the electric power for vehicle running, and an EHC serving as an electrically heated catalyst. The PCU includes a converter, an inverter, and a positive line and a negative line each connecting the converter and the inverter. The converter boosts a voltage VL output from the battery to a requested voltage value VHsys. The EHC has a positive end connected to the positive line. The EHC also has a negative end connected to the negative line.Type: ApplicationFiled: March 16, 2010Publication date: May 24, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keita Hashimoto, Katsumi Tsuchida, Yasuharu Terada
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Patent number: 6864610Abstract: In a rotor having plural permanent magnets secured on a rotary shaft for use in, e.g., an electric motor which is incorporated preferably into a rack-type electric power steering device, a cylindrical cover is fit on the rotary shaft to cover the external surfaces of the plural permanent magnets, and one or both axial end portions of the cylindrical cover are plastically deformed thereby to secure the cylindrical cover onto the rotary shaft. Thus, the cylindrical cover is firmly secured to the rotary shaft and, even when one or more permanent magnets are separated from the rotary shaft or broken, prevents the separated permanent magnets or the broken fragments from scattering within a housing of the motor.Type: GrantFiled: August 6, 2003Date of Patent: March 8, 2005Assignee: Toyoda Koki Kabushiki KaishaInventors: Atsushi Hase, Akira Hiramitsu, Yasuo Kinoshita, Yasuharu Terada, Yuji Sekitomi
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Publication number: 20040095032Abstract: In a rotor having plural permanent magnets secured on a rotary shaft for use in, e.g., an electric motor which is incorporated preferably into a rack-type electric power steering device, a cylindrical cover is fit on the rotary shaft to cover the external surfaces of the plural permanent magnets, and one or both axial end portions of the cylindrical cover are plastically deformed thereby to secure the cylindrical cover onto the rotary shaft. Thus, the cylindrical cover is firmly secured to the rotary shaft and, even when one or more permanent magnets are separated from the rotary shaft or broken, prevents the separated permanent magnets or the broken fragments from scattering within a housing of the motor.Type: ApplicationFiled: August 6, 2003Publication date: May 20, 2004Applicant: TOYODA KOKI KABUSHIKI KAISHAInventors: Atsushi Hase, Akira Hiramitsu, Yasuo Kinoshita, Yasuharu Terada, Yuji Sekitomi
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Patent number: 6009602Abstract: A bottom end stop and a slider with a locking mechanism of a slide fastener chain which can be used for both the right side arrangement and the left side arrangement are provided. The slider includes a leaf spring showing a substantially U-shaped profile and having an end rigidly secured to a front part of the slider body, and the other end having a locking pawl arranged near the center thereof. The locking pawl resiliently projects into a guide groove for the engaging member located in the slider body. The bottom end stop includes an insert pin having a beveled escape area produced by cutting an edge of an upper outer surface of the insert pin facing the locking pawl, a groove formed on a surface facing a box pin of a box so as to engage with a ridge portion of the box pin when the insert pin is inserted into the box.Type: GrantFiled: December 16, 1998Date of Patent: January 4, 2000Assignee: YKK CorporationInventor: Yasuharu Terada
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Patent number: 5625928Abstract: In an automatic lock slider for a slide fastener, a yoke accommodating a locking pawl and a leaf spring has a pair of inwardly directed projections, and a generally C-shaped, narrow rigid strip has on its upper edges a pair of taper surfaces corresponding to the respective projections. As the taper surfaces are guided by the projections, the pawl keeps its suitable posture during the assembling of the slider, and the pawl acts reliably while the automatic locking mechanism is either operative or inoperative. The locking pawl is small in width and has one leg portion to be inserted in a groove of the outer surface of a connector of a slider body. The result is that the number of pressing steps is reduced to minimize press traces on the surface of an upper wing of the slider body so that press traces are prevented from coming out on the slider surface though the yoke is smaller in width compared to the conventional one.Type: GrantFiled: April 6, 1995Date of Patent: May 6, 1997Assignee: YKK CorporationInventors: Yasuharu Terada, Tsunetaka Aoki
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Patent number: 5499432Abstract: A fastening device for fastening a web-like material to a bag or like garment article comprises a connecting member, a link rotatable relative thereto, a cylindrical retaining member fitted rotatably over the connecting member and having a retaining bar, and a hook member having a J-shaped hook. A retaining pin member is adapted to interconnect the connecting member, the retaining member and the hook member and is resiliently releasable from the retaining member to permit the latter to rotate so that the retaining bar moves out of registration with the J-shaped hook.Type: GrantFiled: May 9, 1994Date of Patent: March 19, 1996Assignee: Yoshida Kogyo K.K.Inventors: Yasuharu Terada, Tsuneo Suzuki, Hideyuki Matsushima, Yoshiyuki Horita
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Patent number: 5438736Abstract: A swivel hook comprises a hook body including a proximal part having an aperture formed at its upper end to define a pair of overhangs and a substantially J-shaped hook portion extending downward from the proximal part, an annular link having an connecting axle provided on one side thereof, the connecting axle having an enlarged head formed on its distal end, the enlarged head being inserted into the aperture into engagement with the overhangs; a locking member having a pair of opposing side walls defining therebetween a chamber; and biasing means mounted in the chamber. The proximal part of the hook body is pivotally mounted on the locking member within the chamber with the aperture closed by the opposing side walls and with the biasing means acting between the proximal part and the locking member for normally urging the locking member into engagement with the J-shaped hook portion.Type: GrantFiled: April 29, 1994Date of Patent: August 8, 1995Assignee: Yoshida Kogyo K.K.Inventors: Yasuharu Terada, Tsuneo Suzuki, Hideyuki Matsushima, Yoshiyuki Horita, Hiroaki Izumi
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Patent number: 5398389Abstract: A swivel hook comprises a hook body including a housing body having a housing chamber which has a opening facing toward a side thereof and a pair of overhangs formed in opposed inner surfaces of the housing chamber, a hook proper provided on the housing body, a latch member mounted on the housing body and being movable into or out of engagement with the hook proper and biasing means mounted on the housing body for normally biasing the latch member causing it to come into engagement with the hook proper; an annular link having a connecting axle provided on one side thereof, the connecting axle having an enlarged head formed on its distal end, the connecting axle rotatably mounted in the housing chamber through the opening with the enlarged head engaging the overhangs; and a plug member closing the opening, thus confining the enlarged head in the housing chamber so that the connecting ring is pivotally and retentively mounted on the hook body.Type: GrantFiled: April 12, 1994Date of Patent: March 21, 1995Assignee: Yoshida Kogyo K.K.Inventors: Yasuharu Terada, Tsuneo Suzuki, Hideyuki Matsushima, Yoshiyuki Horita
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Patent number: 5372022Abstract: A lock assembly for use on luggage, bags and the like has a mounting plate accommodating various lock operating parts including a latch, a hook member including a hook element and an ornamental cover fitted over the mounting plate. The latch is engageable resiliently with the hook element and lockable by a key. The ornamental cover is removably connected to the mounting plate and changeable from one to another with different types and designs.Type: GrantFiled: November 5, 1992Date of Patent: December 13, 1994Assignee: Yoshida Kogyo K.K.Inventors: Yasuharu Terada, Yoshiyuki Horita, Hiroshi Yoshida
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Patent number: D324661Type: GrantFiled: April 24, 1989Date of Patent: March 17, 1992Assignee: Yoshida Kogyo K.K.Inventors: Yasuharu Terada, Chiharu Takemura
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Patent number: D325182Type: GrantFiled: April 24, 1989Date of Patent: April 7, 1992Assignee: Yoshida Kogyo K. K.Inventors: Yasuharu Terada, Chiharu Takemura
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Patent number: D334155Type: GrantFiled: April 24, 1989Date of Patent: March 23, 1993Assignee: Yoshida Kogyo K. K.Inventors: Yasuharu Terada, Chiharu Takemura
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Patent number: D355585Type: GrantFiled: October 22, 1993Date of Patent: February 21, 1995Assignee: Yoshida Kogyo K.K. CorporationInventors: Yasuharu Terada, Tsuneo Suzuki, Hideyuki Matsushima, Yoshiyuki Horita