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Masahiko Yamamoto

Masahiko Yamamoto, Fussa JP

Patent application numberDescriptionPublished
20100301824STEP-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

Masahiko Yamamoto, Kodaira-Shi JP

Patent application numberDescriptionPublished
20090266462PNEUMATIC 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
20100180998PNEUMATIC 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
20100186867PNEUMATIC 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

Patent application numberDescriptionPublished
20100092653HIGH 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

Patent application numberDescriptionPublished
20100047645COGENERATION SYSTEM - A cogeneration system (02-25-2010

Masahiko Yamamoto, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100007282IMAGE 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

Patent application numberDescriptionPublished
20090221953COMPOSITION 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
20090234271COMPOSITION 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

Patent application numberDescriptionPublished
20080287079TRANSMITTER, 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 PA11-20-2008
20090120551Pneumatic 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
20090151842PNEUMATIC 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

Patent applications by Masahiko Yamamoto, Tokyo JP