Iwamiya
Hiroki Iwamiya, Osaka JP
Patent application number | Description | Published |
---|---|---|
20080259570 | TRANSMITTING DEVICE AND ELECTRONIC APPARATUS USING THE SAME - A transmitting device includes (a) an amplifier mounted on the top face or the internal layer of a substrate, (b) a semiconductor integrated circuit mounted on the bottom face of the substrate and connected to the amplifier, and (c) a spacer substrate disposed on the bottom face of the substrate. The spacer substrate is disposed at least under the amplifier. This structure allows the heat generated from the amplifier to be efficiently dissipated through the spacer substrate, thus inhibiting deterioration of the characteristics of the amplifier caused by the heat. | 10-23-2008 |
20090042522 | TRANSMITTER AND COMMUNICATION DEVICE USING THE SAME - A transmitter includes a board, an electronic circuit provided on the board for outputting a transmission signal, an amplifier provided on the board for amplifying the transmission signal, an antenna terminal provided on the board and arranged to be connected to an antenna, and a transmission path arranged along a border of the board. The transmission path is connected to an output port of the amplifier and the antenna terminal. The transmission path supplies the amplified transmission signal to the antenna terminal. This transmitter prevents the transmitting signal from entering into other circuits, and thus, has preferable transmission characteristics. | 02-12-2009 |
20090290315 | COMMUNICATION DEVICE AND ELECTRONIC APPARATUS USING THE SAME - In a communication device, a ground plane disposed on the upper or lower surface of a board or inside the board includes a first ground region disposed on a semiconductor circuit and connected thereto, and a second ground region disposed under an amplifier-and connected thereto. The first ground region and the second ground region do not overlap with each other. | 11-26-2009 |
Hiroki Iwamiya, Kyoto JP
Patent application number | Description | Published |
---|---|---|
20140340187 | POWER TRANSMISSION COIL - A power transmission coil is unsusceptible to a dimensional error between individual coils or a displacement between primary and secondary coils. The power transmission coil includes a first planar coil having an inner diameter (Di) and a second planar coil having an outer diameter (Do) and being disposed opposite to the first planar coil. The quotient of the outer diameter (Do) of the second planar coil and the inner diameter (Di) of the first planar coil is defined as an inner/outer diameter ratio (Do/Di). The rate of change in the coupling coefficient between the first planar coil and the second planar coil is defined as a coupling coefficient change rate (Δk). The inner diameter (Di) of the first planar coil and the outer diameter (Do) of the second planar coil are determined in accordance with the correlation between the inner/outer diameter ratio (Do/Di) and the coupling coefficient change rate (Δk) so that the inner/outer diameter ratio (Do/Di) has a value not more than the value at which the slope of the correlation begins to rise steeply. | 11-20-2014 |
Hironori Iwamiya, Obu-City JP
Patent application number | Description | Published |
---|---|---|
20120249037 | MOTOR DRIVING DEVICE - In a motor driving device, a driving switching element is connected in series with a motor between a power source and a ground, and operated by a PWM signal outputted from a control circuit. A return current path forming unit is connected in parallel with the motor to allow a return current when the driving switching element is turned off. A series circuit of a current flow restriction element and a switch is connected in parallel with the return current path forming unit. A disconnection determination unit prohibits output of the PWM signal and closes the switch of the series circuit when a voltage applied to the motor does not fluctuate according to the PWM signal, and determines the disconnection of the motor on condition that the voltage detected in that state indicates a change across a second threshold. | 10-04-2012 |
Hiroshi Iwamiya, Ome-Shi JP
Patent application number | Description | Published |
---|---|---|
20110004106 | OPTICAL BIOLOGICAL INFORMATION DETECTING APPARATUS AND OPTICAL BIOLOGICAL INFORMATION DETECTING METHOD - An optical biological information detecting apparatus includes a light emitting unit which emits observation light of a specific wavelength band to optically observe a desired portion of a tissue of a skin of a human body, and an annular light guide unit which guides the observation light to a desired area of a surface of the skin corresponding to the desired portion of the tissue of the skin, and which annularly irradiates the observation light onto the desired area of the surface of the skin. The apparatus further includes a light receiving unit which is disposed at a position surrounded by the annular light guide unit, and which receives scattered light scattered by the desired portion of the tissue of the skin after the observation light is annularly irradiated onto the desired area of the surface of the skin by the annular light guide unit. | 01-06-2011 |
Ryo Iwamiya, Tokyo JP
Patent application number | Description | Published |
---|---|---|
20090222265 | Voice Recognition Apparatus - A voice recognition apparatus | 09-03-2009 |
20130066637 | INFORMATION PROCESSOR - Information processor | 03-14-2013 |