Abstract: A lead frame includes a plurality of lead portions. At least a part of an upper surface of the lead portion and a sidewall surface of the lead portion is a rough surface having been subjected to roughening treatment. A value of a* in a CIELab color space of the rough surface is within a range from 12 to 19, and a value of b* is within a range from 12 to 17.

Abstract: The slave starts a continuously receiving operation after activated. When failing to receive a beacon signal in the continuously receiving operation, the slave establishes communication using a communication frame including a downstream slot managed by the slave so as to perform an intermittently receiving operation using the downstream slot at an intermittently receiving cycle equal to an integral multiple of one cycle of the communication frame. The master sends successive activation signals after activated, and subsequently sends the beacon signal. When receiving at least one of the successive activation signals in the intermittently receiving operation, the slave starts the receiving operation.

Abstract: There is provided a leaf spring which can prevent a reduction in the spring strength and can also prevent a reduction in the electrical conductivity when the thickness of the leaf spring is decreased. The leaf spring includes an outer frame portion an inner frame portion 5b, 11b disposed inside the outer frame portion 5a, 11a, and spring portions provided between the inner frame portion and the outer frame portion The leaf spring is made of a Cu-based alloy, and has an electrical conductivity of not less than 8% IACS and a 0.2% proof stress of not less than 900 MPa.

Abstract: The process of forming a partial gold-plating pattern on a stainless substrate includes a first plating step, a second plating step, and a stripping step. In the first plating step, pretreatment is applied to a stainless substrate including opposite main planes and a processing site formed of a plane different from the main planes, after which a first gold-plating layer is formed all over the surface of the stainless substrate using a hydrochloric acid plating solution. In the second plating step, mask plating is used to form a second gold-plating layer on the first gold-plating layer that covers the processing site in a desired pattern, and in the stripping step, a portion of the first gold-plating layer in an area where there is none of the second gold-plating layer is stripped off using an alkaline stripping solution.

Abstract: An object of the present invention is to prevent an occurrence of flow-mark molding defects to improve an appearance of molded articles, and as a means for achieving the object, a propylene-based block copolymer is used as an appearance improver, the copolymer comprising 80 to 60% by weight of crystalline propylene polymer portion which has an intrinsic viscosity [?]p of 0.90 dL/g or less and 20 to 40% by weight of propylene/ethylene random copolymer portion which has an ethylene content of 35 to 50% by weight and an intrinsic viscosity [?]c of 7.0 dL/g or higher ([?]c/[?]p being 7.5 to 30), in which the propylene-based block copolymer has a MFR of 10 to 50 g/10 min.

Abstract: An object of the present invention is to prevent an occurrence of flow-mark molding defects to improve an appearance of molded articles, and as a means for achieving the object, a propylene-based block copolymer is used as an appearance improver, the copolymer comprising 80 to 60% by weight of crystalline propylene polymer portion which has an intrinsic viscosity [?]p of 0.90 dL/g or less and 20 to 40% by weight of propylene/ethylene random copolymer portion which has an ethylene content of 35 to 50% by weight and an intrinsic viscosity [?]c of 7.0 dL/g or higher ([?]c/[?]p being 7.5 to 30), in which the propylene-based block copolymer has a MFR of 10 to 50 g/10 min.

Abstract: The slave starts a continuously receiving operation after activated. When failing to receive a beacon signal in the continuously receiving operation, the slave establishes communication using a communication frame including a downstream slot managed by the slave so as to perform an intermittently receiving operation using the downstream slot at an intermittently receiving cycle equal to an integral multiple of one cycle of the communication frame. The master sends successive activation signals after activated, and subsequently sends the beacon signal. When receiving at least one of the successive activation signals in the intermittently receiving operation, the slave starts the receiving operation.

Abstract: An object of the present invention is to prevent an occurrence of flow-mark molding defects to improve an appearance of molded articles, and as a means for achieving the object, a propylene-based block copolymer is used as an appearance improver, the copolymer comprising 80 to 60% by weight of crystalline propylene polymer portion which has an intrinsic viscosity [?]p of 0.90 dL/g or less and 20 to 40% by weight of propylene/ethylene random copolymer portion which has an ethylene content of 35 to 50% by weight and an intrinsic viscosity [?]c of 7.0 dL/g or higher ([?]c/[?]p being 7.5 to 30), in which the propylene-based block copolymer has a MFR of 10 to 50 g/10 min.

Abstract: There is provided a leaf spring which can prevent a reduction in the spring strength and can also prevent a reduction in the electrical conductivity when the thickness of the leaf spring is decreased. The leaf spring includes an outer frame portion an inner frame portion 5b, 11b disposed inside the outer frame portion 5a, 11a, and spring portions provided between the inner frame portion and the outer frame portion The leaf spring is made of a Cu-based alloy, and has an electrical conductivity of not less than 8% IACS and a 0.2% proof stress of not less than 900 MPa.

Abstract: Disclosed is a wireless transmitter/receiver provided with: a local oscillator which oscillates at a predetermined local oscillator frequency; a mixer which mixes a local oscillation signal of the local oscillation frequency outputted from an output terminal of the local oscillator and a radio signal received by an antenna; a modulation circuit which modulates the local oscillator signal and generates a radio signal; and a transmission/reception switching unit which selectively switches over between a reception state in which the output terminal of the local oscillator is connected to the mixer and a transmission state in which the output terminal is connected to the antenna without passing through the mixer.

Abstract: The process of forming a partial gold-plating pattern on a stainless substrate includes a first plating step, a second plating step, and a stripping step. In the first plating step, pretreatment is applied to a stainless substrate including opposite main planes and a processing site formed of a plane different from the main planes, after which a first gold-plating layer is formed all over the surface of the stainless substrate using a hydrochloric acid plating solution. In the second plating step, mask plating is used to form a second gold-plating layer on the first gold-plating layer that covers the processing site in a desired pattern, and in the stripping step, a portion of the first gold-plating layer in an area where there is none of the second gold-plating layer is stripped off using an alkaline stripping solution.

Abstract: The process of forming a partial gold-plating pattern on a stainless substrate includes a first plating step, a second plating step, and a stripping step. In the first plating step, pretreatment is applied to a stainless substrate including opposite main planes and a processing site formed of a plane different from the main planes, after which a first gold-plating layer is formed all over the surface of the stainless substrate using a hydrochloric acid plating solution. In the second plating step, mask plating is used to form a second gold-plating layer on the first gold-plating layer that covers the processing site in a desired pattern, and in the stripping step, a portion of the first gold-plating layer in an area where there is none of the second gold-plating layer is stripped off using an alkaline stripping solution.

Abstract: In a wireless communication system, slave units such as operation switches and the like are configured such that the higher the priority level of an information signal to be transmitted from each slave unit is, the shorter a period t1 of a carrier sense to be performed before the transmission is set. Therefore, when the slave units attempt to transmit information signals of different priority levels by using the same time slot, one of the slave units whose information signal to be transmitted is of the highest priority level is given the shortest carrier sense period t1 before the transmission of the information signal, and therefore, can transmit the information signal at the earliest timing.

Abstract: The process of forming a partial gold-plating pattern on a stainless substrate includes a first plating step, a second plating step, and a stripping step. In the first plating step, pretreatment is applied to a stainless substrate including opposite main planes and a processing site formed of a plane different from the main planes, after which a first gold-plating layer is formed all over the surface of the stainless substrate using a hydrochloric acid plating solution. In the second plating step, mask plating is used to form a second gold-plating layer on the first gold-plating layer that covers the processing site in a desired pattern, and in the stripping step, a portion of the first gold-plating layer in an area where there is none of the second gold-plating layer is stripped off using an alkaline stripping solution.

Abstract: A polypropylene-based resin composition suitable for molding of especially an automobile bumper having good formability, high rigidity, excellent appearance, and high surface impact strength is provided. This composition includes: 30-62 wt. % of a propylene copolymer having an MFR of 40-70 g/10 min.; 5-20 wt. % of a propylene-based block copolymer including a crystalline polypropylene part having a high MFR and a specific ethylene-propylene copolymer part and having an MFR of 100-130 g/10 min; 10-20 wt. % of two types of ethylene-?-olefin copolymer elastomers each having a specific MFR and a specific density; and 23-30 wt. % of talc having a specific particle size.

Abstract: A load control switch (1) is provided with a terminal module (2) to which electric wires are connected and which is installed on an installation frame established on a wall surface of a building; and a switch module (3) which is detachably mounted to the terminal module (2) and which turns a load on or off. The load control switch (1) is also provided with an operation handle (4) detachably attached to the switch module (3). The switch module (3) may be an electronic switch or a mechanical switch; an electronic switch may additionally be provided with delay function, timer function, a motion sensor, and so on. This makes it possible for a user to freely replace one load control switch with another having different function without electrical work being required.

Abstract: Disclosed is a wireless transmitter/receiver provided with: a local oscillator which oscillates at a predetermined local oscillator frequency; a mixer which mixes a local oscillation signal of the local oscillation frequency outputted from an output terminal of the local oscillator and a radio signal received by an antenna; a modulation circuit which modulates the local oscillator signal and generates a radio signal; and a transmission/reception switching unit which selectively switches over between a reception state in which the output terminal of the local oscillator is connected to the mixer and a transmission state in which the output terminal is connected to the antenna without passing through the mixer.

Abstract: A power supply that outputs an output voltage corresponding to a specified voltage through an output terminal includes a plurality of switches that selects which of a high voltage and a low voltage is coupled to the output terminal, a multi-phase pulse width modulating section that controls a pulse width of the high voltage output from each of the plurality of the switches to cause the output voltage to approach the specified voltage, and a changing section that changes a voltage difference between the high voltage and the low voltage according to the specified voltage or the output voltage.

Abstract: There is provided a measurement circuit including a main amplifier that generates a direct voltage in accordance with an input voltage and applies the generated voltage to a device under test, a feedback element that feeds back the direct voltage to the main amplifier and controls the direct voltage generated from the main amplifier to a voltage according to the input voltage, a current detecting circuit that outputs a detecting voltage according to a current value of the direct current, and a clamping circuit that restricts the current value of the direct current output from the main amplifier, in which the clamping circuit includes a first limiting-voltage output section that outputs a limiting voltage according to a limiting value of the direct current, a first bias generating section that generates a bias voltage making use of the input voltage as a reference voltage based on a magnitude relation between the limiting voltage and the detecting voltage, and a limiting-current supplying element that is provi

Abstract: There is provided an electric power applying circuit for applying a direct current power to a load.