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Katsurahira
Yuji Katsurahira, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20110090146 | POSITION DETECTOR AND POSITION INDICATOR - A position detector includes a position indicator including a power source and configured to intermittently transmit a position indication signal to a tablet at a predetermined timing; and the tablet configured to detect a position on its surface pointed to by the position indicator by receiving the position indication signal. The position indicator further includes an information storing section configured to store multiple types of information; a control signal receiving circuitry configured to receive a control signal transmitted from the tablet; an information selecting circuitry configured to select one type of information from among the multiple types of information stored in the information storing section in accordance with a content of the control signal; and an information transmitting circuitry configured to transmit the one type of information selected by the information selecting circuitry to the tablet. | 04-21-2011 |
| 20110115753 | COIL, POSITION INDICATOR, POSITION DETECTING DEVICE, AND COIL WINDING METHOD - A position indicator for use in a pen tablet device includes a coil for emitting a position indicating signal. The coil includes: a first conductive wire wound from a distal end portion thereof to a proximal end portion thereof in a predetermined rotational direction; and a second conductive wire wound from a proximal end portion thereof to a distal end portion thereof in the predetermined rotational direction, wherein the first conductive wire and the second conductive wire are connected to each other at the proximal end portions thereof, and the wound first conductive wire and the wound second conductive wire are disposed alternately adjacent to each other. | 05-19-2011 |
Yuji Katsurahira, Kazo-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090065268 | POSITION INDICATOR - When a start pulse is supplied, a time-constant circuit ( | 03-12-2009 |
| 20090065269 | POSITION DETECTING DEVICE AND POSITION DETECTING METHOD - An excitation coil ( | 03-12-2009 |
| 20100207607 | POSITION INDICATOR, CIRCUIT COMPONENT AND INPUT DEVICE - A position indicator includes a tubular core member, a first coil, a second coil, a substantially bar-like rod, a pen-pressure detecting element, at least one capacitor, and a switch. The tubular core member is formed by a substantially bar-like first magnetic core and a substantially bar-like second magnetic core, which are combined in a transversal direction thereof to form a through-hole therebetween. At least one of the first and second magnetic cores may include a recessed portion formed therein extending in the axial direction thereof. The first coil is wound around the tubular core member, and the second coil is wound around the second magnetic core. The rod is inserted into the through-hole of the tubular core member. The pen-pressure detecting element detects a pressure applied to an end of the rod (i.e., the pen tip). The capacitor is connected to the first coil to form a resonant circuit. The switch controls “on” and “off” states of the second coil for the purpose of calculating a rotation angle of the position indicator about its axis. | 08-19-2010 |
| 20100321288 | POSITION INPUT DEVICE AND COMPUTER SYSTEM - A position input device is provided in which signals are transmitted from a position indicator, and signals transmitted from the position indicator are received by a position detector device. According to certain embodiments, an electrical double-layer capacitor, a charging circuit which charges the electrical double-layer capacitor, and a power transmission unit which relays and supplies to the charging circuit power supplied from a power supply unit external to the position indicator, are provided in the position indicator. In other embodiments the position input device has a built-in power supply unit, transmitting units, and a control unit for switching the transmitting units between energized and de-energized states. Also provided are position input systems and computer systems including the position input device, and methods of operating the position input device and the systems. | 12-23-2010 |
Yuji Katsurahira, Kazo-City JP
| Patent application number | Description | Published |
|---|---|---|
| 20080257613 | POSITION INDICATOR AND COORDINATE INPUT DEVICE - A position indicator is provided. The position indicator includes an external case, and a core having an indicating unit projecting outside of the case. The core is movably supported by the case. The core has a central axis extending along a lengthwise direction thereof. A guiding unit includes an inclined plane provided on one of the case and the core. An engaging unit is provided on the other one of the case and the core. The engaging unit is slidably engaged with the inclined plane such that the guiding unit guides movement of the core when external force is applied to the indicating unit of the core in a lateral direction with respect to the central axis of the core. A pressure detector is operably associated with the core for detecting pressure applied to the indicating unit based on the movement of the core with respect to the case via the guiding unit. | 10-23-2008 |
| 20090139780 | POSITION DETECTING APPARATUS AND POSITION POINTER - In a position detecting apparatus, electric power of a position pointer is turned on only when the position pointer is put within a particular range from a tablet to minimize consumption of a battery disposed in the position pointer. When the position pointer is brought close to the tablet, a control signal transmitted from the tablet is detected by a resonant circuit of the position pointer, and MOSFETs serving as a power switch are turned on by the detected signal. In response, electric power is supplied from a battery via the MOSFETs to circuit elements of the position pointer, and thus an operation of the position pointer starts. | 06-04-2009 |