Patents by Inventor Atsushi Sakurai

Atsushi Sakurai 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).

  • CHARGING AND DISCHARGING CONTROL CIRCUIT AND BATTERY DEVICE
    Publication number: 20140167702
    Abstract: There are provided an overcurrent protection circuit which has a smaller circuit area, a charging and discharging control circuit, and a compact battery device. The charging and discharging control circuit includes an overcurrent detection circuit which monitors the voltage of an overcurrent detection resistor connected to an overcurrent detection terminal and which detects the flow of an overcurrent into a secondary battery, an overcurrent release circuit which monitors the voltage at a terminal to which a load is connected through a voltage step-down circuit connected to an overcurrent release terminal and which detects the removal of a load, and a clamping circuit connected to the overcurrent release terminal are provided. The voltage at the overcurrent release terminal is clamped by the voltage step-down circuit and the clamping circuit.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 19, 2014
    Applicant: Seiko Instruments Inc.
    Inventors: Atsushi SAKURAI, Kazuaki SANO, Toshiyuki KOIKE, Shinya FUKUCHI
  • REVERSE SHIFT DEVICE IN TRANSMISSION
    Publication number: 20140123792
    Abstract: A reverse arm is pivoted by a driving pin of a reverse fork inserted into a driven hole thereof, and the reverse arm thereby moves an idle gear in an axial direction, whereby the idle gear is engaged with and disengaged from a driving gear and a driven gear of a reverse gear train. The outside diameter of the driving pin is smaller than the width between opposed flat inner side surfaces of the driven hole of the reverse arm; thus, a gap is formed between the driving pin and the inner side surfaces. A jump-over mechanism JO is provided between the reverse arm and a transmission casing for elastically urging the reverse arm outward away from a predetermined intermediate position within the pivoting range of the reverse arm and brings the driving pin in contact with one of the inner side surfaces of the driven hole.
    Type: Application
    Filed: May 11, 2012
    Publication date: May 8, 2014
    Applicant: AISIN AI CO., LTD.
    Inventor: Atsushi Sakurai
  • Trimming circuit and semiconductor device
    Patent number: 8710902
    Abstract: Provided are a trimming circuit which does not need a dedicated terminal to which a current for cutting a fuse is input, and also a semiconductor device including the trimming circuit. The trimming circuit includes: an input terminal connected to a pad which is an external terminal of an internal circuit; a fuse provided between a power supply terminal and an output terminal; and a diode provided between the input terminal and the output terminal. The trimming circuit performs trimming by applying, to the pad, such a voltage that the diode is biased in the forward direction.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 29, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Atsushi Sakurai, Kazuaki Sano, Fumihiko Maetani, Satoshi Abe
  • Lithium ion storage device
    Patent number: 8587926
    Abstract: A present invention provide a lithium ion storage device capable of reliably doping a negative active material of a negative plate with lithium ions generated through dissolution of a lithium metal plate disposed in an electrode group. A conductive shielding member includes a current collecting metal foil and a negative active material layer formed on at least one surface of the current collecting metal foil. The conductive shielding member is provided between a lithium metal plate and a positive plate such that the lithium metal plate is sandwiched between the negative plate and the negative active material layer formed on the current collecting metal foil of the conductive shielding member.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: November 19, 2013
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Atsushi Sakurai, Hideaki Uehara, Yukio Iida, Yoshimi Wakamatsu, Haruki Hoshi
  • BLOW MOLDING DEVICE AND BLOW MOLDING METHOD
    Publication number: 20130241118
    Abstract: The blow molding device includes a heating section that continuously transfers and heats preforms that respectively include a neck along a heating transfer path while supporting the preforms using transfer members in an inverted state, a blow molding section that simultaneously blow-molds N (N is an integer equal to or larger than 2) preforms that have been heated by the heating section in an upright state to form N containers, and an intermittent transfer section that intermittently transfers the N preforms from the heating section to the blow molding section. The intermittent transfer section includes a pitch conversion section that converts the arrangement pitch of the N preforms from a first pitch P1 to a second pitch P2 (P2>P1), and an inversion section that includes N inversion arms that respectively invert the N preforms from the inverted state to the upright state.
    Type: Application
    Filed: April 5, 2013
    Publication date: September 19, 2013
    Applicant: NISSEI ASB MACHINE CO., LTD.
    Inventors: Koichi SATO, Atsushi SAKURAI
  • Battery state monitoring circuit and battery device
    Patent number: 8503143
    Abstract: Provided is a battery state monitoring circuit which detects that a voltage of a secondary battery has decreased abruptly because of an overcurrent, thereby being capable of protecting a battery device from an abrupt decrease in voltage of the secondary battery caused by the overcurrent. The battery state monitoring circuit includes a voltage comparator circuit and a power supply voltage detection circuit for detecting an abrupt decrease in power supply voltage, in which the voltage comparator circuit detects a normal overcurrent while the power supply voltage detection circuit detects the abrupt decrease in power supply voltage caused by load short-circuit.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: August 6, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Shohei Tsukamoto, Atsushi Sakurai, Kazuaki Sano
  • Battery state monitoring circuit and battery device
    Patent number: 8482257
    Abstract: Provided are a battery state monitoring circuit with a small number of terminals and a battery device including the battery state monitoring circuit. An output of an overcharge detection circuit (12) is an open-drain output to a charge control terminal (18), and an input terminal of a voltage detection circuit (11) is connected to the charge control terminal (18), to thereby share a charger detection terminal and a charge control terminal.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: July 9, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Atsushi Sakurai, Shohei Tsukamoto, Kazuaki Sano
  • CHARGE/DISCHARGE CONTROL CIRCUIT AND BATTERY DEVICE
    Publication number: 20130134942
    Abstract: Provided are a charge/discharge control circuit having a self-test function, which can dispense with a complicated test device, and a battery device. The battery device includes the charge/discharge control circuits each including a pull-up/pull-down circuit provided at a terminal to which a secondary battery is to be connected. When a self-test start signal is input so as to enter a self-test state, a self-test control circuit controls the pull-up/pull-down circuit, to thereby perform a test on a voltage detection circuit provided at the terminal to which the secondary battery is to be connected. When the self-test is finished, a self-test start signal is output to a next-stage charge/discharge control circuit, to thereby perform a test sequentially on the voltage detection circuits of the cascade-connected charge/discharge control circuits.
    Type: Application
    Filed: June 26, 2012
    Publication date: May 30, 2013
    Inventors: Atsushi Sakurai, Kazuaki Sano
  • SOLID DISPERSION COMPRISING TRIAZOLE COMPOUND
    Publication number: 20130137739
    Abstract: A solid dispersion comprising a poorly soluble pharmaceutical compound, such as 3-methoxy-1,5-bis(4-methoxyphenyl)-1H-1,2,4-triazole, which has excellent ease of handling and stability is provided. The solid dispersion comprises a polymeric carrier (for example, a polymer selected from a group consisting of polyvinylpyrrolidone and copolyvidone) and further comprising hydroxypropyl methylcellulose as desired.
    Type: Application
    Filed: May 27, 2011
    Publication date: May 30, 2013
    Inventors: Atsushi Sakurai, Kazuhiro Sako, Toshiro Sakai
  • Electricity storage system and metal battery case manufacturing method
    Patent number: 8440343
    Abstract: An electricity storage system comprises a plurality of battery cells in which battery elements are accommodated in angular metal battery cases, wherein the plurality of battery cells are connected together electrically and are disposed in such a manner as to form spaces between the metal battery cells, and wherein the metal battery cell comprises an angular metallic housing on an external surface of which irregularities are formed and a resin portion which is injection molded integrally on the external surface of the metallic housing.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: May 14, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshinori Mita, Atsushi Sakurai
  • Battery state monitoring circuit and battery device
    Patent number: 8410757
    Abstract: Provided are a battery state monitoring circuit capable of detecting disconnection of a battery from a power supply terminal or a ground terminal, and a battery device including the battery state monitoring circuit. The battery state monitoring circuit includes voltage detection circuits provided between the power supply terminal and an intermediate terminal and between the intermediate terminal and another intermediate terminal. For example, if a battery (21) is disconnected from a power supply terminal (11), the power supply terminal (11) is pulled down by a constant current circuit (15) to a voltage of a second intermediate terminal (13) so that a voltage detection circuit (34) detects the disconnection.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 2, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Shohei Tsukamoto, Atsushi Sakurai, Kazuaki Sano
  • Battery protection IC and battery device
    Patent number: 8405359
    Abstract: Provided are a battery protection IC adaptable to any number of batteries connected in series without increasing a breakdown voltage thereof, and a battery device including the battery protection IC mounted thereon. A charge control signal input terminal and a discharge control signal input terminal of one battery protection IC are provided with a clamp circuit (121), and hence an output driver (112) of another battery protection IC connected to those terminals is not applied with a voltage equal to or higher than a breakdown voltage. Accordingly, the breakdown voltage of the battery protection IC is not required to be high.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: March 26, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Yoshihisa Tange, Atsushi Sakurai, Takakazu Ozawa, Kiyoshi Yoshikawa
  • Power supply apparatus for vehicle
    Patent number: 8403090
    Abstract: A power supply apparatus includes a plurality of battery modules, a support plate, a plurality of first reinforcing projections, and a plurality of second reinforcing projections. The support plate supports the battery modules and includes a first plate and a second plate. The first plate thermally contacts bottom surfaces of the battery modules. The second plate is placed on a bottom surface of the first plate to define cooling spaces between the first and second plates. A coolant is to flow in the cooling spaces. The plurality of first reinforcing projections is provided on at least one of the first and second plates. The first reinforcing projections project into the cooling spaces and extend in a first direction. The plurality of second reinforcing projections is provided on a top surface of the first plate and extending in a second direction intersecting with the first direction.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: March 26, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hidetomo Fujiwara, Atsushi Sakurai, Kazuhisa In
  • CELL BALANCE DEVICE AND BATTERY SYSTEM
    Publication number: 20130049691
    Abstract: Provided are a cell balance device for protecting a switch circuit from an overcurrent flow. The cell balance device includes: a plurality of electric accumulator connection terminals each connected to one of a node and two terminals of electric accumulators connected in series; a voltage hold device connection terminal connected to a voltage hold device; a plurality of first switch circuits provided between the plurality of electric accumulator connection terminals and the voltage hold device; a control circuit for controlling ON/OFF of the plurality of first switch circuits based on a synchronization signal; and an overcurrent detection circuit for detecting an overcurrent flowing through each of the plurality of first switch circuits.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 28, 2013
    Inventors: Atsushi Sakurai, Hiroshi Saito
  • Battery state monitoring circuit and battery device
    Patent number: 8384355
    Abstract: Provided are a battery state monitoring circuit and a battery device that are capable of reliably controlling charge by a charger even if a voltage of a secondary battery drops to around 0 V. In the battery device provided with the battery state monitoring circuit, respective gate voltages of a P-type metal oxide semiconductor (PMOS) transistor and an N-type metal oxide semiconductor (NMOS) transistor, which together form a voltage detection circuit for detecting a voltage of around 0 V of the secondary battery, are applied by a voltage dividing resistor circuit that is connected across terminals of the secondary battery.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: February 26, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Toshiyuki Koike, Atsushi Sakurai, Kazuaki Sano, Wataru Sakamoto, Fumihiko Maetani, Shohei Tsukamoto
  • Semiconductor device and rechargeable power supply unit
    Patent number: 8378635
    Abstract: Provided are a semiconductor device and a rechargeable power supply unit which are capable of accurately detecting an overcharge state of a battery even in a case where the battery is charged with a sine wave charger. In a case where a ½ cycle of a charging voltage of the sine wave charger is shorter than a delay time for cancellation of an overdischarge state, when it is detected that a voltage of the battery in the overdischarge state exceeds an overdischarge detection voltage and becomes equal to or higher than an overcharge detection voltage, a delay circuit sets the delay time for cancellation of the overdischarge state to 0 seconds.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 19, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Toshiyuki Koike, Atsushi Sakurai, Kazuaki Sano
  • POWER SUPPLY APPARATUS FOR VEHICLE
    Publication number: 20120312614
    Abstract: A power supply apparatus includes a plurality of battery modules, a support plate, a plurality of first reinforcing projections, and a plurality of second reinforcing projections. The support plate supports the battery modules and includes a first plate and a second plate. The first plate thermally contacts bottom surfaces of the battery modules. The second plate is placed on a bottom surface of the first plate to define cooling spaces between the first and second plates. A coolant is to flow in the cooling spaces. The plurality of first reinforcing projections is provided on at least one of the first and second plates. The first reinforcing projections project into the cooling spaces and extend in a first direction. The plurality of second reinforcing projections is provided on a top surface of the first plate and extending in a second direction intersecting with the first direction.
    Type: Application
    Filed: April 13, 2012
    Publication date: December 13, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hidetomo FUJIWARA, Atsushi Sakurai, Kazuhisa In
  • TRIMMING CIRCUIT AND SEMICONDUCTOR DEVICE
    Publication number: 20120299630
    Abstract: Provided are a trimming circuit which does not need a dedicated terminal to which a current for cutting a fuse is input, and also a semiconductor device including the trimming circuit. The trimming circuit includes: an input terminal connected to a pad which is an external terminal of an internal circuit; a fuse provided between a power supply terminal and an output terminal; and a diode provided between the input terminal and the output terminal. The trimming circuit performs trimming by applying, to the pad, such a voltage that the diode is biased in the forward direction.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 29, 2012
    Inventors: Atsushi Sakurai, Kazuaki Sano, Fumihiko Maetani, Satoshi Abe
  • Battery state monitoring circuit and battery device
    Patent number: 8319476
    Abstract: Provided are a battery state monitoring circuit and a battery device which can be readily adapted to variation in number of batteries, and has low withstand voltage and a simple circuit configuration.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: November 27, 2012
    Assignee: Seiko Instruments Inc.
    Inventors: Atsushi Sakurai, Kazuaki Sano
  • BETA-KETOIMINE LIGAND, METHOD OF PREPARING THE SAME, METAL COMPLEX COMPRISING THE SAME AND METHOD OF FORMING THIN FILM USING THE SAME
    Publication number: 20120251724
    Abstract: The ?-ketoimine ligand is represented by the following formula 1: wherein R1 and R2 are each independently a C1-C5 alkyl group. A metal complex compound includes the ?-ketoimine ligand. A method of forming the ?-ketoimine ligand and a method of forming a thin film using the metal complex compound including ?-ketoimine ligand are provided.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Inventors: Youn-Joung CHO, Senji WADA, Jung-Sik CHOI, Jin-Seo LEE, Atsushi SAKURAI, Kyoo-Chul CHO, Atsuya YOSHINAKA, Haruyoshi SATO, Junji UEYAMA., Tomoharu YOSHINO, Masako SHIMIZU