Abstract: According to one embodiment, a nonvolatile semiconductor storage device includes an encrypting circuit for operating in a predetermined encrypting system, a memory cell array preliminarily storing complementary data to be used in the operation, and a page buffer having a first region for storing the data being read out from the memory cell array, and a second region used when executing the operation.

Abstract: According to one embodiment, a battery connection structure for connecting a cylindrical electrode terminal provided on a battery cell, includes a connection member formed of conductive material, which integrally includes a connection part and a cylindrical engagement part extending from the connection part and to be engaged in an inner hole of the electrode terminal; and a spring member which is fitted in the inner hole of the engagement part and presses the engagement part against an inner surface of the electrode terminal.

Abstract: According to one embodiment, an encryption device includes a storage unit, an input unit, first to fourth partial encryption units, a generation unit, and an output unit. The first partial encryption unit calculates first intermediate data from input plain data to store in the storage unit. The generation unit generates a round key, which is used in calculations for the first intermediate data and N-th intermediate data, from the secret key. The second partial encryption unit calculates (i+1)th intermediate data from i-th intermediate data (i is smaller than N) and the round key to store in the storage unit. The third partial encryption unit performs an arithmetic operation including predetermined conversion for mixing the N-th intermediate data, and calculates (N+1)th intermediate data to store in the storage unit. The fourth partial encryption unit obtains encrypted data by performing an arithmetic operation including inverse conversion of the conversion on the (N+1)th intermediate data.

Abstract: In a walking assistance device (10) that can transmit the power generated by a power generator (26, 28) to a femoral part of a user, a swing arm (60, 62) is attached to an output member of the power generator at a base end thereof, and is connected to a femoral support plate (68, 70) at a free end thereof via a pivot joint (64). The pivot joint includes a spherical projection (100) provided on the free end of the swing arm and a socket (112) provided on the femoral support plate, the socket defining a spherical recess (110) configured to receive the spherical projection to permit a tilting movement of the femoral support plate at least in two directions with respect to the free end of the swing arm. Thereby, the femoral support plate is enabled to accommodate the build and/or the movement of the femoral part of the user.

Abstract: According to an embodiment, an arithmetic device includes an arithmetic processing unit, an address generating unit, and a control unit. The arithmetic processing unit performs a plurality of arithmetic processing used in an encryption method. Based on an upper bit of the address of the first piece of data and based on an offset which is a value corresponding to a counter value and which is based on the address of the first piece of data, the address generating unit generates addresses of the memory device. The control unit controls the arithmetic processing unit in such a way that the arithmetic processing is done in a sequence determined in the encryption method, and that specifies an update of the counter value at a timing of modifying the type of data and at a timing of modifying data.

Abstract: According to an embodiment, an arithmetic device includes an arithmetic processing unit, an address generating unit, and a control unit. The arithmetic processing unit performs a plurality of arithmetic processing used in an encryption method. Based on an upper bit of the address of the first piece of data and based on an offset which is a value corresponding to a counter value and which is based on the address of the first piece of data, the address generating unit generates addresses of the memory device. The control unit controls the arithmetic processing unit in such a way that the arithmetic processing is done in a sequence determined in the encryption method, and that specifies an update of the counter value at a timing of modifying the type of data and at a timing of modifying data.

Abstract: According to one embodiment, a NAF conversion apparatus which converts a binary representation of an integer into a w-NAF redundant binary representation includes an acceptance device, a storage device, a shift register, and an update device. The acceptance device accepts the binary representation of the integer for every bit from lower bits. The storage device stores a state value expressed by 1 bit. The shift register stores a state value expressed by (w?1) bits. The update device determines a state of the storage device and a state of the (w?1)-bit shift register at next time, and determines a w-bit parallel output at current time by referring to a 1-bit value accepted by the acceptance device, the state value in the storage device, and the state value in the (w?1)-bit shift register.

Abstract: According to one embodiment, a first shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of an intermediate result of a computation of Montgomery multiplication result z and calculates a first shift amount. A second shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of redundant-binary-represented integer x and calculates a second shift amount. An addition/subtraction unit calculates the intermediate result by adding/subtracting, with respect to the intermediate result which has been bit-shifted by the first shift amount, the integer p, and the integer y which has been bit-shifted by the second shift amount. An output unit outputs, as the Montgomery multiplication result z, the intermediate result when the sum of the first shift amounts is equal to the number of bits of the integer p.

Abstract: A reverse block-type insulated gate bipolar transistor (IGBT) manufacturing method that, when manufacturing a reverse block-type IGBT having a separation layer formed along tapered surfaces of a V-shaped groove formed using anisotropic etching, can secure a highly reliable reverse pressure resistance, and suppress a leakage current when reverse biasing. When irradiating with a flash lamp for flash lamp annealing after implantation of ions into a second conductivity type separation layer and second conductivity type collector layer to form the second conductivity type collector layer and second conductivity type separation layer, the strongest portion of radiation energy is focused on a depth position from the upper portion to the central portion of a tapered side edge surface.

Abstract: A pelvic frame (20) for a walking assistance device (10) is configured to be worn on a pelvic part of a user, and comprises a main frame (22) extending from a lower back of the user to either side of the user, an abdominal belt (30) attached to the main frame at base ends thereof, extending along an inner periphery of the main frame (22) and configured to be detachably passed along an abdominal part of the user, and a pair of stabilizer member (90, 92) each having a base end attached to a free end part of the main frame (22) and a free end engaging the abdominal belt (30). Because the two free end of the main frame (22) are joined by the stabilizer members (90, 92) in cooperation with the abdominal belt (30), the stiffness and mechanical strength of the main frame (22) is effectively enhanced, and the weight of the main frame and material cost can be minimized. Also, the deformation of the pelvic frame (20) during use can be minimized, and this contributes to the comfort of the user.

Abstract: Disclosed is a practical method for efficiently producing an alcohol compound by hydrogenating an aldehyde by using a homogeneous copper catalyst which is an easily-available low-cost metal species. Specifically disclosed is a method for producing an alcohol compound, which is characterized in that a hydrogenation reaction of an aldehyde compound is performed in the presence of a homogeneous copper catalyst, a monophosphine compound and an alcohol selected from the group consisting of primary alcohols, secondary alcohols and mixtures of those.

Abstract: Disclosed is a practical method for efficiently producing an alcohol compound by hydrogenating an aldehyde by using a homogeneous copper catalyst which is an easily-available low-cost metal species. Specifically disclosed is a method for producing an alcohol compound, which is characterized in that a hydrogenation reaction of an aldehyde compound is performed in the presence of a homogeneous copper catalyst and a diphosphine compound.

Abstract: A storage unit stores load information indicating the load of an information processing apparatus by applying each of a plurality of update programs to each virtual machine. An operation unit obtains the load information from the storage unit, and determines, for each virtual machine, an order of applying the plurality update programs to the virtual machine within a predetermined time period on the basis of the load information and an upper load limit allowable for the information processing apparatus.

Abstract: In a walking assistance device (10) including a main frame (22) supporting a power generator (26, 28) and worn on a pelvic part of a user, the main frame is provided with an opening (23) in a middle part thereof, and an electronic unit (25) is received in the opening. As the electronic unit is placed in the middle part of the main frame which is relatively free from deformation, the electronic unit is protected from deformation or stress that could impair the reliability of the electronic unit. To achieve both an easy access to the electronic unit, and an attractive appearance, the opening may be provided with a lid (24) that selectively closes the opening from a side adjacent to the user, and the lid may be formed as a back support member for supporting a back part of the user. As the lid serves the dual purposes, the weight and cost of the device can be minimized.

Abstract: In a belt buckle device including a tongue piece (75, 76; 210; 310) connected to an end of a belt extending in a longitudinal direction and a hook member (68, 70; 220; 320) configured to be selectively connected to the tongue piece by engaging a first lateral bar of the tongue piece in a hook opening (111; 226; 326) defined by a hook portion (71, 72; 225; 324) thereof, a longitudinal dimension (B) between the free end of the tongue piece and a base end side of the first lateral bar is substantially equal to or smaller than a width (A) of the entrance of the hook opening, and the effective thickness (C) of the first lateral bar is greater than the width (A) of the entrance of the hook opening. Thus, the first lateral bar is held inside the hook opening as long as the tongue piece is kept in a flat position in a reliable manner.

Abstract: In a walking assistance device for providing a walking assistance force to a femoral part of a user, the walking assistance force generated by a power generator is effectively transmitted to the femoral part of the user while avoiding the user from experiencing any undue pressure or discomfort. The walking assistance device includes a rigid femoral support frame having a base end connected to an output end of an electric motor unit and a free end extending from the base end to a position opposite to a front part of the femoral part of the user, and a flexible belt attached to the free end of the femoral support frame to be releasably worn around a circumference of the femoral part of the user at a height corresponding to the free end of the femoral support frame.

Abstract: According to one embodiment, a secondary battery device includes a plurality of secondary battery cells and a resin case including a plurality of wall portions defining a plurality of accommodation sections, which are configured to individually accommodate the secondary battery cells. At least one of the wall portions defining each of the accommodation sections includes a plurality of pressure springs molded integrally with the wall portion from a synthetic resin and configured to press and position each of the secondary battery cells accommodated in the accommodation sections.

Abstract: A reverse block-type insulated gate bipolar transistor (IGBT) manufacturing method that, when manufacturing a reverse block-type IGBT having a separation layer formed along tapered surfaces of a V-shaped groove formed using anisotropic etching, can secure a highly reliable reverse pressure resistance, and suppress a leakage current when reverse biasing. When irradiating with a flash lamp for flash lamp annealing after implantation of ions into a second conductivity type separation layer and second conductivity type collector layer to form the second conductivity type collector layer and second conductivity type separation layer, the strongest portion of radiation energy is focused on a depth position from the upper portion to the central portion of a tapered side edge surface.

Abstract: In a walking assistance device configured to apply a walking assistance force to a femoral part of a user, a walking assistance force provided by a power generator mounted on a pelvic support assembly is transmitted to a femoral part of the user via a femoral support assembly. The femoral support assembly includes a swing arm (60, 62) having a base end connected to an output end of the power generator and a free end opposing a front part of the femoral part of the user, a femoral support member (68, 70) pivotally connected to the free end of the swing arm and having a support surface engaging the front part of the femoral part of the user, and a femoral belt (73, 74) passed around the femoral part of the user and having two ends attached to corresponding lateral ends of the femoral support member. Thereby, the femoral support member is enabled to accommodate changes and/or variations in the contour of the femoral part of the user.

Abstract: Provide that a useful catalyst for homogeneous hydrogenation, particularly a catalyst for homogeneous asymmetric hydrogenation for hydrogenation, particularly asymmetric hydrogenation, which is obtainable with comparative ease and is excellent in economically and workability, and a process for producing a hydrogenated compound of an unsaturated compound, particularly an optically active compound using said catalyst with a high yield and optical purity.