Abstract: A lithium ion secondary battery is provided. The battery includes a positive electrode having at least a cathode active material and a binder, a negative electrode, an electrolyte, and a separator which are arranged between the positive electrode and the negative electrode, and in which an open circuit voltage per unit cell in a full charging state lies within (4.25V?voltage?6.00V). The cathode active material includes either a lithium-cobalt composite oxide expressed by a general formula: LiaCo1-xMexO2-b (Me denotes metal elements of at least one, two or more kinds selected from V, Cu, Zr, Zn, Mg, Al, and Fe; 0.9?a?1.1; 0?x=0.3; and ?0.1?b?0.1) or a lithium-cobalt-nickel-manganese oxide expressed by a general formula: LiaNi1-x-y-zCoxMnyMezO2-b (0.9?a?1.1; 0<x<0.4; 0<y<0.4; 0<z<0.3; and ?0.1?b?0.1). The binder includes a polyacrylonitrile resin.

Abstract: A connector which is capable of preventing crosstalk from occurring when a plurality of pairs of differential signal transmission contacts are arranged in a horizontal row. A housing holds a plurality of connector modules with a gap between adjacent ones thereof. Each connector module is comprised of a plate-shaped holding member, a plurality of first signal contacts held on one surface of the holding member, and a plurality of second signal contacts held on the other surface of the holding member. Positions of the respective first signal contacts of the plurality of connector modules, and positions of associated ones of the second signal contacts of the connector modules are made approximately coincident with each other in the direction of the height of the housing, respectively.

Abstract: A Ti-based cermet 1 includes at least one of Co and Ni, at least one of titanium carbide, titanium nitride and titanium carbonitride including at least one selected from the metal elements of groups 4, 5 and 6 of the periodic table, and Ru.

Abstract: A porous protective film layer-provided electrode includes: an electrode is provided and having a collector and an electrode mixture layer disposed on the surface of the collector, the mixture layer containing an electrode active material and a first resin; and a porous protective film layer disposed on the surface of the electrode mixture layer, the film layer containing an inorganic filler and a second resin. A chemical bond including a structure represented by —O— or —O—Si— is present between the inorganic filler and the second resin.

Abstract: A connector which is capable of preventing crosstalk from occurring when a plurality of pairs of differential signal transmission contacts are arranged in a horizontal row. A housing holds a plurality of connector modules with a gap between adjacent ones thereof. Each connector module is comprised of a plate-shaped holding member, a plurality of first signal contacts held on one surface of the holding member, and a plurality of second signal contacts held on the other surface of the holding member. Positions of the respective first signal contacts of the plurality of connector modules, and positions of associated ones of the second signal contacts of the connector modules are made approximately coincident with each other in the direction of the height of the housing, respectively.

Abstract: A positive electrode includes a collector and a positive electrode mixture layer formed on the collector and containing a polyacrylonitrile based resin-containing binder and a positive electrode active material. The polyacrylonitrile in the positive electrode mixture layer is crosslinked and carbonized.

Abstract: A rollover judging device adjusts the magnitude of an angular velocity component ? of a vehicle in a direction of a rollover, which is measured by an angular velocity sensor 1, by using an ? adjusting unit 3c on the basis of an acceleration component of the vehicle in its rightward or leftward direction or in its upward or downward direction, which is measured by an acceleration sensor 2, calculates an angle component ?o by integrating with respect to time this adjusted angular velocity component ?o by using an integrator 3d, carries out predetermined multiplication and addition processes by using a judging means 4 on the basis of this angle component ?o and the measured angular velocity component ?, and, when the result of this addition process exceeds a preset threshold Th, outputs a signal indicating judgment of occurrence of a rollover to an air bag control device 5.

Abstract: In a connector adapted for connection to a mating connector, each contact includes a holding portion held by the housing, a contact receiving portion extending from the holding portion and adapted to contact a contact portion of a corresponding one of contacts of a mating connector, a spring portion extending from the contact receiving portion and movable relative to the housing, and a contact portion provided at the spring portion and adapted to contact a contact receiving portion of the corresponding contact of the mating connector. The housing includes accommodating portions accommodating therein at least portions of the contact receiving portions of the contacts, respectively, and guide portions adapted to guide the contact portions of the contacts of the mating connector toward the accommodating portions, respectively.

Abstract: A board-to-board assembly is disclosed, comprising a plug connector and a receptacle connector. One of the plug connector and the receptacle connector holds a signal conductor. The board-to-board assembly comprises conductive resilient members. The conductive resilient members provide electrical contacts between the signal conductor and circuit boards, respectively. No soldering process is required to the electrical contacts.

Abstract: Disclosed is a cemented carbide comprising 5 to 10 mass % of cobalt and/or nickel, and 0 to 10 mass % of at least one selected from a carbide (except for tungsten carbide), a nitride and a carbonitride of at least one selected from the group consisting of metals of groups 4, 5 and 6 of the Periodic Table, the balanced amount of tungsten carbide, a hard phase comprising mainly tungsten carbide particles, and containing ? particles of at least one selected from the carbide, the nitride and the carbonitride, and the hard phase being bonded through a binder phase comprising mainly cobalt and/or nickel, wherein a mean particle size of the tungsten carbide particles is 1 ?m or less, and the cemented carbide having a sea-island structure in which plural binder-phase-aggregated portions composed mainly of cobalt and/or nickel are scattered in the proportion of 10 to 70 area % based on the total area on the surface of the cemented carbide. The cemented carbide is excellent in wear resistance and fracture resistance.

Abstract: The throw-away tip has a shape of substantially flat plate, comprising from 1 to 30% by weight of binder phase comprising at least one kind of Co and Ni, and 70 to 99% by weight of carbonitride phase comprising composite metal carbonitride of Ti and one or more kind other than Ti among metals of groups 4a, 5a and 6a of the Periodic Table, wherein the mean grain size of the carbonitride phase is 1.5 ?m or less, while flexural strength test pieces which are cut out of ten throw-away tips including the side face thereof show flexural strength with a Weibull coefficient of 5 or higher. Throw-away tips having fine carbonitride phase structure and high cutting performance can be made with less variance among individual throw-away tips.

Abstract: A rollover judgment apparatus includes a threshold change functional unit 5 for changing a determination threshold on the basis of a roll angular velocity ?, a tilt angle ?v of a vehicle which is acquired by integrating the roll angular velocity ?, a lateral direction acceleration Gy, and a steering wheel angle ?s, an ?×? map judging unit 6 for judging whether or not the vehicle will roll over on the basis of the determination threshold changed by the threshold change functional unit 5, and the tilt angle of the vehicle, a safing functional unit 7 for detecting a tip-up of the vehicle in relation to a motion of the vehicle, and a curtain air bag deploying unit 9 for controlling expansion of a curtain air bag on the basis of an output of the ?×? map judging unit 6 and an output of the safing functional unit 7.

Abstract: A cutting tool having a substrate and a coating layer for coating the surface of the substrate, the coating layer being composed of Ti1-a-b-c-dAlaWbSicMd(CxN1-x) where M is at least one selected from Nb, Mo, Ta, Hf and Y, 0.45?a?0.55, 0.01?b?0.1, 0.01?c?0.05, 0.01?d?0.1, and 0?x?1. The cutting tool has excellent wear resistance and fracture resistance. The cutting tool may be further provided with a layer composed of at least one selected from carbides, nitrides and carbonitrides of Al and the elements of the groups 4, 5 and 6 of the periodic table.

Abstract: In a connector adapted for connection to a mating connector, each contact includes a holding portion held by the housing, a contact receiving portion extending from the holding portion and adapted to contact a contact portion of a corresponding one of contacts of a mating connector, a spring portion extending from the contact receiving portion and movable relative to the housing, and a contact portion provided at the spring portion and adapted to contact a contact receiving portion of the corresponding contact of the mating connector. The housing includes accommodating portions accommodating therein at least portions of the contact receiving portions of the contacts, respectively, and guide portions adapted to guide the contact portions of the contacts of the mating connector toward the accommodating portions, respectively.

Abstract: A cermet comprises a binding phase made of a binding metal including Co and/or Ni. The binding phase is 5 to 30 mass %. The cermet further comprises a plurality of hard particles bound each other with the binding phase. The hard particles comprise core-containing structure particles having cores and shells both including TiCN. The core-containing structure particles comprise first core-containing structure particles of which shells contain the binding metal and second core-containing structure particles of which cores and shells both contain the binding metal.

Abstract: A lithium ion secondary battery is provided. The battery includes a positive electrode having at least a cathode active material and a binder, a negative electrode, an electrolyte, and a separator which are arranged between the positive electrode and the negative electrode, and in which an open circuit voltage per unit cell in a full charging state lies within (4.25V?voltage?6.00V). The cathode active material includes either a lithium-cobalt composite oxide expressed by a general formula: LiaCo1-xMexO2-b(Me denotes metal elements of at least one, two or more kinds selected from V, Cu, Zr, Zn, Mg, Al, and Fe; 0.9?a?1.1; 0?x?0.3; and ?0.1?b?0.1) or a lithium-cobalt-nickel-manganese oxide expressed by a general formula: LiaNi1-x-y-zCoxMnyMezO2-b(0.9?a?1.1; 0<x<0.4; 0<y<0.4; 0<z<0.3; and ?0.1?b?0.1). The binder includes a polyacrylonitrile series resin.

Abstract: A rollover determination apparatus for vehicles includes a roll-angular-velocity sensor (1) for detecting, as a roll angular velocity, the rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle, an upward-or-downward-acceleration sensor (2) for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle, an arithmetic processing unit (4a) for carrying out arithmetic processing on both the roll angular velocity detected by the roll-angular-velocity sensor (1) and the upward or downward acceleration detected by the upward-or-downward-acceleration sensor (2), and a rollover occurrence determining unit (4b) for determining whether the vehicle will roll over based on a processing result of the arithmetic processing unit (4a).

Abstract: A board-to-board assembly is disclosed, comprising a plug connector and a receptacle connector. One of the plug connector and the receptacle connector holds a signal conductor. The board-to-board assembly comprises conductive resilient members. The conductive resilient members provide electrical contacts between the signal conductor and circuit boards, respectively. No soldering process is required to the electrical contacts.

Abstract: A battery capable of improving the charge and discharge efficiency even when the battery voltage is set to over 4.2 V is provided. A cathode and an anode are oppositely arranged with an electrolyte and a separator in between. The open circuit voltage in full charge is in the range from 4.25 V to 6.00 V. The cathode has a cathode current collector and a cathode active material layer provided on the cathode current collector. The cathode active material layer contains, as a binder, a polymer with intrinsic viscosity of 2.0 dl/g to 10 dl/g which contains vinylidene fluoride as an element.

Abstract: A rollover sensing device includes a detecting unit that includes at least a pair of acceleration sensors which detect an acceleration in an vertical direction, the pair of acceleration sensors being disposed closer to each other on a same board in a lateral direction of a vehicle, an arithmetic processing unit that calculates an angular acceleration and an angular velocity of the vehicle on a basis of an output signal from the detecting unit, and a rollover determining unit that determines whether or not a rollover of the vehicle occurs on a basis of an arithmetic result obtained by the arithmetic processing unit.