Masahiko Yamamoto
Masahiko Yamamoto, Fussa JP
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20100301824 | STEP-UP DC/DC SWITCHING CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - A step-up DC/DC converter having a step-up circuit which can performs a stable control without depending on a logic threshold of a semiconductor switching device and a semiconductor integrated circuit device having the step-up DC/DC converter are provided. The step-up DC/DC converter includes: a control logic which generates a driving voltage to be supplied to a semiconductor switching device; a power supply circuit which steps-up a battery voltage to perform a level shift of the driving voltage output by the control logic; and an amplifier operated with using a voltage generated by the semiconductor switching device as a power supply. Since the level-shifted semiconductor switching device control signal is higher than a logic threshold voltage of the semiconductor switching device, the ON/OFF of the semiconductor switching device can be controlled. | 12-02-2010 |
20110210710 | STEP-UP DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - A semiconductor integrated circuit device includes: a semiconductor switching element; an input voltage detection circuit that outputs a voltage correlated to an input voltage; an oscillator circuit that oscillates on the basis of the voltage outputted by the input voltage detection circuit; a control logic that generates a drive signal; a power supply circuit that boosts a battery voltage; a buffer that level-shifts the drive voltage outputted by the control logic; and an amplification element that operates using a voltage generated by the semiconductor switching element as a power supply. Thus, the semiconductor switching element can be on/off controlled so that switching loss at low load can be reduced while preventing the peak current flowing into the inductor coil from depending on the input voltage. | 09-01-2011 |
Masahiko Yamamoto, Kodaira-Shi JP
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20090266462 | PNEUMATIC TIRE FOR MOTORCYCLE - A pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to achieve excellent driving stability, is provided. Furthermore, a pneumatic tire for a motorcycle, wherein the tire is optimized in the ground contact shape and the ground contact pressure distribution during high-speed running to realize excellent gripping force to stabilize the behavior of the tire near its cornering limit and excellent cornering ability, is provided. | 10-29-2009 |
20100180998 | PNEUMATIC TIRE - The following tire is provided: a pneumatic tire in which steering stability is securely prevented from being varied due to changes in running speed or ambient temperature. | 07-22-2010 |
20100186867 | PNEUMATIC TIRE - Provided is a pneumatic tire in which changes in steering stability with changes in speed, temperature environment, etc. during running are greatly reduced. | 07-29-2010 |
Masahiko Yamamoto, Hokkaido JP
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20100092653 | HIGH ZINC-CONTAINING LEGUMES - Provided are a legume containing high concentrations of zinc in the grains, and a method for producing the same. Provided are also grains of a legume, except adzuki bean, containing 5.5 mg/100 g or more of zinc, and a method for producing a legume containing 4.0 mg/100 g or more of zinc in the grains, the method including spraying a solution containing zinc at a concentration of 0.01 to 2% by weight, on the leaves or the raceme regions, starting from the flower bud stage of the legume. | 04-15-2010 |
Masahiko Yamamoto, Osaka JP
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20100047645 | COGENERATION SYSTEM - A cogeneration system ( | 02-25-2010 |
Masahiko Yamamoto, Yokohama-Shi JP
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20100007282 | IMAGE DISPLAY APPARATUS - An image display apparatus of a present invention has a rear plate having a plurality of electron-emitting devices, a face plate having a light-emitting member, a high-voltage power source which applies a high voltage to the light-emitting member, a current detecting unit which detects an emission current from the electron-emitting devices, and a bypass capacitor. One end of the bypass capacitor is connected between the high-voltage power source and the current detecting unit, and the other end of the bypass capacitor is connected to a potential regulating electrode, and an electrostatic capacitance Cp of the bypass capacitor satisfies a following formula: | 01-14-2010 |
Masahiko Yamamoto, Sapporo JP
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20090221953 | COMPOSITION COMPRISING PROTEIN-LIPOSOME COMPLEX FOR IONTOPHORESIS - Provided is a composition for iontophoresis comprising a negatively-charged protein-liposome complex, in which the protein-liposome complex is formed of a negatively-charged protein and a cationic liposome. Such may provide a composition capable of efficiently delivering a protein having a large molecular weight intradermally and inducing an immune response effectively by iontophoresis. | 09-03-2009 |
20090234271 | COMPOSITION COMPRISING siRNA-POLYCATION COMPLEX FOR IONTOPHORESIS - To provide a composition which is capable of efficiently delivering an siRNA intradermally and of effectively suppressing the expression of a target gene by an RNAi. Provided is a composition for iontophoresis including an siRNA-polycation complex which is charged negatively. | 09-17-2009 |
Masahiko Yamamoto, Tokyo JP
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20080287079 | TRANSMITTER, RF TRANSMITTER SIGNAL PROCESSOR AND METHOD FOR OPERATION OF TRANSMITTER - An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA | 11-20-2008 |
20090120551 | Pneumatic Tire And Method For Producing The Same - This invention provides a pneumatic tire having a highly improved steering stability, wherein a reinforcing layer formed by spirally winding a strip-shaped triaxial fabric or triaxial fabric-rubber composite having a width W satisfying a relation of the following formula (I): | 05-14-2009 |
20090151842 | PNEUMATIC RUN-FLAT RADIAL TIRE - Disclosed is a pneumatic run-flat radial tire of side reinforcing type, which has significantly improved run-flat durability without adversely affecting actual vehicle properties such as ride comfort. | 06-18-2009 |
20120157016 | TRANSMITTER, RF TRANSMITTER SIGNAL PROCESSOR AND METHOD FOR OPERATION OF TRANSMITTER - An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA | 06-21-2012 |
Masahiko Yamamoto, Kanagawa-Ken JP
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20140293645 | ILLUMINATION DEVICE AND LIGHT-GUIDING MEMBER - In one embodiment, an illumination device includes a light-guiding unit having a light output surface which outputs light and a back surface facing the light output surface, wherein the light-guiding unit has a curved surface in a region of the back surface farther than a first position on the back surface that is away by a first distance from an axis passing the light output surface and the back surface, and a rough surface in a region of the light output surface farther than a second position on the light output surface that is away by a second distance from the axis in a same direction as a direction from the axis toward the first position, and where an intersection of the axis and the back surface is an origin point, and a direction of the axis from the back surface to the light output surface is positive, a normal line of the curved surface intersects with the axis at the positive side of the axis, and an angle formed by a normal line vector at the second position in a direction toward the light output surface from the back surface of the light output surface and a vector in a direction from the curved surface to the second position is equal to or more than a critical angle. | 10-02-2014 |
Masahiko Yamamoto, Kanagawa JP
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20150322063 | NITROGEN-CONTAINING HETEROCYCLIC COMPOUND OR SALT THEREOF - A compound represented by Formula [1] (in the formula, Z | 11-12-2015 |