Patents by Inventor Keiichi Tanii
Keiichi Tanii 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: 11621584Abstract: A wireless power-feeding apparatus that enables efficient wireless feeding to a power-receiving coil embedded at the center of a spherical power-receiving device. The apparatus includes: a holding member for holding the power-receiving device; a power-transmitting coil; a driver circuit for supplying the power-transmitting coil with high-frequency current to generate a magnetic flux for wireless power-feeding to the power-receiving coil; and a wireless data receiver for receiving data transmitted regularly from a wireless data transmitter, the power-transmitting coil being positioned relative to the holding member in such a manner that the axes of the power-receiving coil and the power-transmitting coil are parallel to each other when the power-receiving device is held by the holding member in such a manner that a mark provided on the surface of the power-receiving device faces a predetermined direction.Type: GrantFiled: January 29, 2019Date of Patent: April 4, 2023Assignees: MAXELL, LTD., MIZUNO CORPORATION, AICHI STEEL CORPORATION, SUNWISE CO., LTD.Inventors: Keiichi Tanii, Takeshi Naruo, Shohei Shibata, Masaki Mori, Michiharu Yamamoto, Yasushi Senda
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Publication number: 20200303958Abstract: A wireless power-feeding apparatus that enables efficient wireless feeding to a power-receiving coil embedded at the center of a spherical power-receiving device. The apparatus includes: a holding member for holding the power-receiving device; a power-transmitting coil; a driver circuit for supplying the power-transmitting coil with high-frequency current to generate a magnetic flux for wireless power-feeding to the power-receiving coil; and a wireless data receiver for receiving data transmitted regularly from a wireless data transmitter, the power-transmitting coil being positioned relative to the holding member in such a manner that the axes of the power-receiving coil and the power-transmitting coil are parallel to each other when the power-receiving device is held by the holding member in such a manner that a mark provided on the surface of the power-receiving device faces a predetermined direction.Type: ApplicationFiled: January 29, 2019Publication date: September 24, 2020Applicants: MAXELL HOLDINGS, LTD., MIZUNO CORPORATION, AICHI STEEL CORPORATION, SUNWISE CO., LTD.Inventors: Keiichi TANII, Takeshi NARUO, Shohei SHIBATA, Masaki MORI, Michiharu YAMAMOTO, Yasushi SENDA
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Patent number: 10587014Abstract: A charging control method and a charging mechanism for a lithium ion secondary battery are provided that can determine the life of the lithium ion secondary battery with more accuracy and a simple configuration. A charging control method for a lithium ion secondary battery calculates an integrated value of the number of charged times. The method includes: adding a predetermined value to the integrated value of the number of charged times of the lithium ion secondary battery if both a residual voltage that is a voltage value of the lithium ion secondary battery before the beginning of charging and an elapsed time from the time of the previous charging of the lithium ion secondary battery are not less than predetermined values; and estimating the life of the lithium ion secondary battery based on the integrated value of the number of charged times.Type: GrantFiled: December 11, 2015Date of Patent: March 10, 2020Assignee: MAXELL HOLDINGS, LTD.Inventor: Keiichi Tanii
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Patent number: 9812740Abstract: The battery unit (1) includes a flat battery (2) having a cylindrical positive electrode can (10) with a bottom and a cylindrical negative electrode can (20) with a bottom that covers an opening side of the positive electrode can and having a side wall of the positive electrode can on the opening side fitted to an outer circumferential surface of a side wall of the negative electrode can and a substrate (61) provided on a flat surface of one of the negative electrode can and the positive electrode can and mounted with circuit components (62) thereon. The other of the negative electrode can and the positive electrode can that has a flat surface on an opposite side to the substrate in a thickness-wise direction of the flat battery serves as an external terminal for one of a positive electrode and a negative electrode.Type: GrantFiled: January 11, 2012Date of Patent: November 7, 2017Assignee: HITACHI MAXELL, LTD.Inventor: Keiichi Tanii
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Publication number: 20170279165Abstract: A charging control method and a charging mechanism for a lithium ion secondary battery are provided that can determine the life of the lithium ion secondary battery with more accuracy and a simple configuration. A charging control method for a lithium ion secondary battery calculates an integrated value of the number of charged times. The method includes: adding a predetermined value to the integrated value of the number of charged times of the lithium ion secondary battery if both a residual voltage that is a voltage value of the lithium ion secondary battery before the beginning of charging and an elapsed time from the time of the previous charging of the lithium ion secondary battery are not less than predetermined values; and estimating the life of the lithium ion secondary battery based on the integrated value of the number of charged times.Type: ApplicationFiled: December 11, 2015Publication date: September 28, 2017Applicant: HITACHI MAXELL, LTD.Inventor: Keiichi TANII
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Patent number: 8920949Abstract: The battery unit (1) includes a flat battery (2) having a positive electrode can (10) and a negative electrode can (20) and a circuit substrate (61) provided on one of an upper surface and a bottom surface of the flat battery (2). Circuit components (62) are mounted at the circuit substrate (61). A battery side negative electrode terminal (81) and a battery side positive electrode terminal (82) electrically connected to the flat battery (2) are provided on a surface of the flat battery (2) provided with the circuit substrate (61). Substrate side terminals (63) electrically connected to the battery side negative electrode terminal (81) and the battery side positive electrode terminal (82) are formed at a side surface of the circuit substrate (2).Type: GrantFiled: January 6, 2012Date of Patent: December 30, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Masatoshi Hashimoto, Keiichi Tanii, Kyohei Takeuchi
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Publication number: 20140335379Abstract: The battery unit (1) includes a flat battery (2) having a cylindrical positive electrode can (10) with a bottom and a cylindrical negative electrode can (20) with a bottom that covers an opening side of the positive electrode can and having a side wall of the positive electrode can on the opening side fitted to an outer circumferential surface of a side wall of the negative electrode can and a substrate (61) provided on a flat surface of one of the negative electrode can and the positive electrode can and mounted with circuit components (62) thereon. The other of the negative electrode can and the positive electrode can that has a flat surface on an opposite side to the substrate in a thickness-wise direction of the flat battery serves as an external terminal for one of a positive electrode and a negative electrode.Type: ApplicationFiled: January 11, 2012Publication date: November 13, 2014Applicant: HITACHI MAXELL, LTD.Inventor: Keiichi Tanii
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Patent number: 8822049Abstract: A battery unit provided with a flat battery and a substrate having a circuit formed thereon is provided in a compact form as a whole. The battery unit (1) includes a flat battery (2) in a flat shape having an upper surface and a bottom surface and a substrate (61) fixed to one surface of the flat battery (2). A circuit component (62) is mounted on a surface of the substrate (61) on a side of the flat battery (2), and a positive electrode terminal (68) (charging terminal) electrically connected to a positive electrode side of the flat battery (2) and a negative electrode terminal (66) (GND terminal) electrically connected to a negative electrode side of the flat battery (2) are formed on a surface of the substrate (61) on the opposite side to the flat battery (2).Type: GrantFiled: February 23, 2011Date of Patent: September 2, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Keiichi Tanii, Masatoshi Hashimoto, Kyohei Takeuchi, Takahiro Shimada
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Publication number: 20140050948Abstract: The battery unit (1) includes a flat battery (2) having a positive electrode can (10) and a negative electrode can (20) and a circuit substrate (61) provided on one of an upper surface and a bottom surface of the flat battery (2). Circuit components (62) are mounted at the circuit substrate (61). A battery side negative electrode terminal (81) and a battery side positive electrode terminal (82) electrically connected to the flat battery (2) are provided on a surface of the flat battery (2) provided with the circuit substrate (61). Substrate side terminals (63) electrically connected to the battery side negative electrode terminal (81) and the battery side positive electrode terminal (82) are formed at a side surface of the circuit substrate (2).Type: ApplicationFiled: January 6, 2012Publication date: February 20, 2014Applicant: HITACHI MAXELL, LTD.Inventors: Masatoshi Hashimoto, Keiichi Tanii, Kyohei Takeuchi
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Publication number: 20130323538Abstract: A battery unit provided with a flat battery and a substrate having a circuit formed thereon is provided in a compact form as a whole. The battery unit (1) includes a flat battery (2) in a flat shape having an upper surface and a bottom surface and a substrate (61) fixed to one surface of the flat battery (2). A circuit component (62) is mounted on a surface of the substrate (61) on a side of the flat battery (2), and a positive electrode terminal (68) (charging terminal) electrically connected to a positive electrode side of the flat battery (2) and a negative electrode terminal (66) (GND terminal) electrically connected to a negative electrode side of the flat battery (2) are formed on a surface of the substrate (61) on the opposite side to the flat battery (2).Type: ApplicationFiled: February 23, 2011Publication date: December 5, 2013Applicant: HITACHI MAXELL, LTD.Inventors: Keiichi Tanii, Masatoshi Hashimoto, Kyohei Takeuchi, Takahiro Shimada
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Publication number: 20130162206Abstract: In a charging unit, a configuration is obtained in which power stored in a battery can be prevented from being unnecessarily consumed when a device is not being used. The charging unit (10) includes a power receiver (13) (power receiving coil) that receives power from a power feeder (2) (charger), a battery (12) that is charged with power received by the power receiver (13), a charge controller (14) that is provided between the power receiver (13) and the battery (12), and controls the battery (12), and a disconnecting section (15) (relay) that is provided between the battery (12) and the charge controller (14), and electrically disconnects the battery (12) and the charge controller (14) when the battery (12) is not being charged.Type: ApplicationFiled: August 31, 2011Publication date: June 27, 2013Applicant: HITACHI MAXELL, LTD.Inventors: Kyohei Takeuchi, Masatoshi Hashimoto, Keiichi Tanii
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Patent number: 7602534Abstract: A CPU and an image memory are provided in a printing apparatus. An interface circuit device for inputting/outputting signals representing image data is interposed between the CPU and the image memory. The interface circuit device constitutes of a plurality of SSTL circuits. One of two adjoining pixels in image data is changed into a non-inverted pixel, and the other is changed into an inverted pixel. In the SSTL circuits, to which inputted is a signal representing the one pixel, an input signal is inputted so as not to invert an input signal. In the SSTL circuits, to which inputted is a signal representing the other pixel as an inverted element, an input signal is inputted to the inverted element so as to invert an input signal. This suppresses an increase in cost and an increase in the size of a device, while reducing the current in impedance matching.Type: GrantFiled: August 1, 2006Date of Patent: October 13, 2009Assignee: Dainippon Screen Mfg. Co., Ltd.Inventor: Keiichi Tanii
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Publication number: 20070035422Abstract: A CPU and an image memory are provided in a printing apparatus. An interface circuit device for inputting/outputting signals representing image data is interposed between the CPU and the image memory. The interface circuit device constitutes of a plurality of SSTL circuits. One of two adjoining pixels in image data is changed into a non-inverted pixel, and the other is changed into an inverted pixel. In the SSTL circuits, to which inputted is a signal representing the one pixel, an input signal is inputted so as not to invert an input signal. In the SSTL circuits, to which inputted is a signal representing the other pixel as an inverted element, an input signal is inputted to the inverted element so as to invert an input signal. This suppresses an increase in cost and an increase in the size of a device, while reducing the current in impedance matching.Type: ApplicationFiled: August 1, 2006Publication date: February 15, 2007Inventor: Keiichi Tanii
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Integrated circuit for processing digital signals in video camera having electronic zooming function
Patent number: 5331411Abstract: An output from a solid state image sensing device spatially modulated by a color filter is A/D converted and stored in a field memory. Digital signals read from the field memory during electronic zooming are successively delayed by 1H period by means of first, second and third 1H delay elements connected in series. The output from the field memory and outputs from the first, second and third 1H delay elements are separated into luminance components and line sequential color components by first to fourth Y/C separating circuits, respectively. A first set of three primary color signals are calculated based on outputs from the first, second and third Y/C separating circuits, and a second set of three primary color signals are calculated based on outputs from the second, third and fourth Y/C separating circuits.Type: GrantFiled: October 29, 1991Date of Patent: July 19, 1994Assignee: Sanyo Electric Co., Ltd.Inventors: Kiyotada Kawakami, Masao Takuma, Tooru Asaeda, Tooru Yamamoto, Haruhiko Murata, Hirotsugu Murashima, Tohru Watanabe, Masashi Honzawa, Keiichi Tanii -
Patent number: 4739393Abstract: A circuit for performing white balance correction using two color temperature sensors includes an image sensor for converting an image of an object to a color image signal, a luminance signal/color signal separator for separating an output of the image sensor into a luminance signal and a color signal, and at least one level correction means for correcting a level of the color signal output from the luminance signal/color signal separator, based on a first white balance correction signal or a second white balance correction signal supplied through a switching or disabling means. A first white balance correction signal generator is provided independently of the image sensor and generates the first white balance correction signal correlating to a color temperature of the object.Type: GrantFiled: November 3, 1986Date of Patent: April 19, 1988Assignee: Sanyo Electric Co., Ltd.Inventors: Mitsuo Seki, Keiichi Tanii