摘要:
A coating composition, a method for producing the coating composition, a coating film and magnetic recording medium are described. The coating composition comprises a binder, a solvent, and an α-alumina powder, wherein the α-alumina powder satisfies the following (a) and (b): (a) when the α-alumina powder is pressed to obtain a green body and the green body is sintered at 1250° C. under the atmospheric pressure, a relative density of the obtained sintered body is about 80% or more, and (b) a BET specific surface area of the α-alumina powder is about 10 m2/g or more.
摘要:
A handlebars locking apparatus for locking and unlocking of the handlebars on the basis of a code collation is provided. A collation ECU releases a restriction of a rotor latched by a latch by driving a solenoid if an ignition switch is turned OFF while a lock pin is retracted. After releasing the restriction, rotation of the rotor is restricted by the latch and a code collation with a code stored in a portable key is carried out if a lock pin is in a protrusion state after the release of the restriction and the protrusion state is detected by a lock side switch. If the code collation is correctly carried out, the protrusion of the lock pin is maintained to lock the handlebars. If the code collation is not correctly completed, the restriction of the rotor is released so as to be returned into an unlocked state.
摘要:
In conventional optical isolators, an optical signal is dispersed by polarization or the characteristics are varied by heat generation in a garnet crystal. According to the invention, the crystal optical axis (3c) of rutile crystal (3) is oriented so that the separation directions of the ordinary ray (O) and the extraordinary ray (E) are perpendicular to the plane including the optical axes of optical fibers (10, 11). Furthermore, the focusing central optical axis (6c) of a focusing rod lens (6) is arranged parallel with optical axes of the optical fibers (10, 11) and at a substantially equal distance from the four rays, i.e. the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (10) and the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (11). An air gap (7) of about 200 [μm] is provided, as a heat insulating means, between the focusing rod lens (6) and a magnetized garnet crystal (8).
摘要:
A steering lock device has a steering catch mechanism including a handlebar attached to a steering stem, and a locking arm attached to this handlebar and being equipped with a lock pin for engagement on the tip end portion thereof. The steering catch mechanism also includes a locking claw as an engaging portion that is engagable with the lock pin. The locking claw is usually biased in the unlocking direction. In this catch mechanism, the locking claw is disposed on a rotation track of the lock pin. Accordingly, when an external force is applied to the lock pin such that the lock pin is in contact with the locking claw of the catch mechanism, the locking claw is moved in the locking direction so that the locking claw can be engaged with the lock pin. Therefore, a steering-lock stand-by state is accomplished.
摘要:
A method for producing an α-alumina powder is described. The method for producing an α-alumina powder comprises a step of calcining an aluminum salt in the presence of a seed crystal at 600-890° C.
摘要:
A radio frequency power supply structure and a plasma CVD device comprising the same are provided in which reflection of radio frequency power at a connecting portion where an RF cable connects to an electrode is reduced so that incidence of the radio frequency power into the electrode increases. In the radio frequency power supply structure for use in a device generating plasma by charging a plate-like electrode with a radio frequency power, the radio frequency power supply structure supplying the electrode with the radio frequency power from an RF cable, the RF cable is positioned on an extended plane of a plane formed by the electrode to connect to the electrode at a connecting portion provided on an end peripheral portion of the electrode. The RF cable connects to the electrode substantially in the same plane as the plane formed by the electrode. Voltage acting after the connecting portion becomes symmetric relative to the plane formed by the electrode and the electric line of force also becomes symmetric. Thereby, change of impedance at the connecting portion is reduced, reflection of the radio frequency power at the connecting portion is reduced, incidence of the radio frequency power into the electrode increases and the efficiency of film forming and surface treatment is enhanced.
摘要:
A chain type ferroelectric random access memory has a memory cell unit including ferroelectric memory cells electrically connected in series to each other, a plate line connected to an electrode of the memory cell unit, a bit line connected to the other electrode of the memory cell unit via a switching transistor, a sense amplifier which amplifies the voltages of this bit line and its complementary bit line, and a transistor inserted between the switching transistor and the sense amplifier. A value, being the minimum value of the gate voltage in the transistor obtained during elevation of the plate line voltage and comparative amplification, is smaller than a value, being the maximum value of the gate voltage in the transistor obtained during fall of the plate line voltage and comparative amplification. With these features, decrease in the accumulated charge of polarization in the memory cell is reduced and occurrence of disturb is prevented during read/write operations.
摘要:
An anode and a battery capable of realizing a high capacity and improving charge and discharge cycle characteristics, and manufacturing methods thereof are provided. An anode active material layer (12) contains a particulate anode active material (12A) including a simple substance or a compound of an element capable of forming an alloy with Li, a particulate binder (12B) including a copolymer of vinylidene fluoride or polyvinylidene fluoride, and a conductive agent (12C). The anode active material layer (12) is formed by using a dispersion medium having a swelling degree of 10% or less to the binder (12B), specifically pure water or the like. The particulate binder (12B) functions as a cushion to absorb expansion and shrinkage of the anode active material (12A) due to charge and discharge, and lowering of electron conductivity caused by generation of cracks or separation is prevented. Further, since the anode active material (12A) is not covered with the binder (12B), electrode reaction is well performed.
摘要:
An optical fiber collimator array includes an optical fiber array block and a microlens array substrate. The optical fiber array block includes an angled surface and is configured to receive and retain a plurality of individual optical fibers, which carry optical signals. The microlens array substrate includes a plurality of microlenses integrated along a microlens surface and a sloped surface opposite the microlens surface. The microlens surface is coupled to the angled surface such that the optical signals from the individual optical fibers are each collimated by a different one of the integrated microlenses.
摘要:
A method for producing an α-alumina powder is provided. T method for producing an α-alumina powder comprising steps of: (1) pulverizing a metal compound having a full width at half maximum (Ho) of a main peak in XRD pattern to obtain a seed crystal having a full width at half maximum (H) of the main peak in XRD pattern in the presence of pulverizing agent, (2) mixing the obtained seed crystal with an aluminum salt, (3) calcining the mixture, and wherein a ratio of H/Ho is 1.06 or more.