Patents by Inventor Shinichiro Ito
Shinichiro Ito 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: 6465988Abstract: A device and a method are provided in which memory effects can be cancelled by controlling charging and discharging of a secondary battery during driving of a vehicle. When a memory effect determinator determines that the discharging memory effect has occurred, based on at least one of the following determinations: whether a time of charging/discharging of a secondary battery has reached a predetermined time; whether a charging/discharging amount in the secondary battery has reached a predetermined amount; and whether a voltage per cell has reached a voltage V1 at a lower-limit state of charge in a range of capacity actually used, a discharging controller discharges the secondary battery until the voltage per cell reaches a voltage V3 that is higher than 1.0 V and is lower than the voltage V1 at the lower-limit state of charge.Type: GrantFiled: April 20, 2001Date of Patent: October 15, 2002Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shinichiro Ito, Yusai Murakami, Seiji Bito, Tadao Kimura
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Patent number: 6424116Abstract: The present invention provides a core member and a core assembly that realize a compact and lightweight charging port and a compact and lightweight induction-type charging apparatus. A first side end of a bottom plate portion includes inclined side ends receding from the first side end toward a point between a first side end and a second side end and halfway between a third side end and a fourth side end. A middle leg portion extends from a top surface of the bottom plate portion offset toward side ends opposite the first side ends, relative to a center of the bottom plate portion. Two outer leg portions extend from the top surface of the bottom plate portion along side ends other than the first and second side ends, and have top surfaces which are higher than a top surface of the middle leg portion.Type: GrantFiled: December 5, 2000Date of Patent: July 23, 2002Assignee: TDK CorporationInventors: Yasukazu Okuyama, Shinichiro Ito, Yasuhiro Sakurai
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Publication number: 20010035742Abstract: A device and a method are provided in which memory effects can be cancelled by controlling charging and discharging of a secondary battery during driving of a vehicle. When a memory effect determinator determines that the discharging memory effect has occurred, based on at least one of the following determinations: whether a time of charging/discharging of a secondary battery has reached a predetermined time; whether a charging/discharging amount in the secondary battery has reached a predetermined amount; and whether a voltage per cell has reached a voltage V1 at a lower-limit state of charge in a range of capacity actually used, a discharging controller discharges the secondary battery until the voltage per cell reaches a voltage V3 that is higher than 1.0 V and is lower than the voltage V1 at the lower-limit state of charge.Type: ApplicationFiled: April 20, 2001Publication date: November 1, 2001Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Shinichiro Ito, Yusai Murakami, Seiji Bito, Tadao Kimura
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Patent number: 6211765Abstract: The present invention provides a coil device including magnetic cores having gaps at positions of at least opposing to each other in a magnetic path to be formed and a coil wound to include at least one of said gaps and its improvement consists in the fact that a shape of at least one of the opposing magnetic cores forming; the gaps around which said coil is wound is made as a curve of logarithmic function from its base end to its extreme end and its most extreme end is provided with a gap adjusting flat surface. With such an arrangement as above, the present invention provides a coil device capable of reducing a leakage magnetic flux generated around the gaps, preventing an abnormal generation of heat of the coil and further preventing a bad influence of noise against a peripheral apparatus.Type: GrantFiled: April 8, 1996Date of Patent: April 3, 2001Assignee: TDK CorporationInventors: Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 6108556Abstract: This invention relates to a mobile station locating method for locating a mobile station based on a mobile communications system. Radio zones of base stations are dissected into a plurality of search areas (grid sections). A positional relationship between base stations and a concerned search area is defined by mutual time differences in the radio wave propagation between them. The base stations transmit their characteristic signals. Time differences in the propagation of the characteristic signals are caused between transmission of the characteristic signals at respective base stations and reception at a mobile station. Mutual differences in their propagation times are used to identify a search area where the mobile station is present. Thus, the position of the mobile station can be identified by an area not by a point.Type: GrantFiled: January 30, 1998Date of Patent: August 22, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Shinichiro Ito
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Patent number: 5572788Abstract: A method for adjusting inductance of a coil device of a closed structure wherein the coil device outside magnetic substance forming an endless loop, an inside magnetic substance formed inside of the outside magnetic substance and a coil wound on the periphery of the inside magnetic substance. The coil device further includes gaps between both ends of the outside magnetic substance and the inside magnetic substance, and notches or holes in the outside magnetic substance. In adjusting the inductance of the coil device, a jig is inserted through the notches or holes so as to shift the position of the inside magnetic substance with respect to the outside magnetic substance.Type: GrantFiled: June 1, 1994Date of Patent: November 12, 1996Assignee: TDK CorporationInventors: Yutaka Saitoh, Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 5347255Abstract: The variable inductance coil device having an outer magnetic member, a bobbin member, a coil member and an inner magnetic member. A female thread (thread portion) is provided in the inner periphery of the tube of the bobbin member, and a male thread (thread portion) which meets with the female thread of the tube is provided in the outer periphery of the inner magnetic member. The inductance varies accurately by rotating and moving the inner magnetic member. Since the outer magnetic member is formed in the closed shape, the leakage flux can be lowered.Type: GrantFiled: February 17, 1993Date of Patent: September 13, 1994Assignee: TDK CorporationInventors: Yutaka Saitoh, Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 5345209Abstract: The present invention is comprised of an outside magnetic substance forming an endless loop, an inside magnetic substance formed inside of said outside magnetic substance and coil wound on the periphery of said inside magnetic substance. In a coil device of the present invention with gaps between both ends of said outside magnetic substance and said inside magnetic substance, notches or holes are provided in said outside magnetic substance for the purpose of inserting insert a jig therein so as to adjustably move the position of said inside magnetic substance, wherein said notches or holes correspond to the gaps provided in both ends of said inside magnetic substance. In said coil device, the inside magnetic substance can be adjusted and moved its position by pressing a bar-like jig through the notches or the holes provided in the outside magnetic substance. Thus, it has become possible to adjust the value of the inductance by about 25% experimentally.Type: GrantFiled: July 30, 1992Date of Patent: September 6, 1994Assignee: TDK CorporationInventors: Yutaka Saitoh, Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 5315279Abstract: The present invention provides a coil device including magnetic cores having gap regions and a coil wound to contain the gap regions. The present invention provides an improvement in which a shape of at least one of the opposing magnetic cores forming the gap regions is formed into a curve of logarithmic function from its base end to its extreme end, its most extreme end is provided with a gap adjusting flat surface and then a plurality of gaps are formed in the gap regions.With such an arrangement as above, the present invention provides the coil device capable of reducing a leakage magnetic flux produced around the gaps, preventing an abnormal generation of heat of the coils and further preventing a bad influence of noise against a peripheral apparatus.Type: GrantFiled: February 22, 1991Date of Patent: May 24, 1994Assignee: TDK CorporationInventors: Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 5210514Abstract: A coil device includes two magnetic cores each having a U-shape in section forming a closed magnetic path therein with their legs being opposed to each other and having a gap in such path, and a coil wound so as to cover the gap. In this structure, the mutually opposed portions of the magnetic cores in the region to form the gap are so shaped that the cross-sectional area of the fore end becomes smaller than that of the base end, thereby preventing concentration of any leakage magnetic flux on the gap portions while averting abnormal generation of heat in the coil to consequently eliminate harmful influence of noise on peripheral apparatus or components.Type: GrantFiled: September 30, 1992Date of Patent: May 11, 1993Assignee: TDK CorporationInventors: Shinichiro Ito, Yukiharu Kinoshita
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Patent number: 4985690Abstract: A coaxial dielectric resonator for use at high frequency. The outer or inner peripheral surface of a tubular dielectric member is stepped so as to provide a greater suppression of spurious resonance. The dielectric member has a prism-shaped outer configuration so as to provide a high Q value, as well as improved space factor.Type: GrantFiled: July 5, 1989Date of Patent: January 15, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuhiro Eguchi, Eiichi Ochiai, Shinichiro Ito, Takehiko Yoneda, Hiromitsu Taki, Toshiharu Noguchi, Kuniaki Kiyosue, Akiro Yoshida, Morikazu Sagawa, Mitsuo Makimoto
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Patent number: 4698464Abstract: A control switch for a motor driven remote control mirror device in a vehicle has a switching control circuit for connecting motors for driving a mirror to be tilted to a DC power source. The control circuit has first and second stationary contact to be connected with one terminals of the motors for tilting the mirror around horizontal and vertical axes, and a third stationary contact to be commonly connected to the other terminals of the motors, the contacts are selectively connected with the negative and positive polarities of a power source by bridge members disposed corresponding to the contacts. The bridge members ordinarily connect the contacts to the negative polarity of the power source, and connect, when elastically deformed, to the positive polarity. A push plate is elastically supported by the bridge members, has a leg for operating the bridge members on the back surface, and the relative bridge member is operated by pressing the direction indication unit of the push plate.Type: GrantFiled: December 26, 1985Date of Patent: October 6, 1987Assignee: Ichikoh Industries LimitedInventors: Morimasa Tanaka, Shinichiro Ito