"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Application No. | Application Title | Issue Date |
| 20120044787 | Stepping motor control circuit and analogue electronic watch The invention is intended to achieve detection of a source voltage without providing a voltage detection circuit and allow a drive stop while holding correct drive pulse information when the source voltage is lowered to a predetermined level or below. A detection segmen... | 02/23/2012 |
| 20120014227 | Stepping motor control circuit and analog electronic timepiece A detection interval in which the rotation status of a stepping motor is divided into a first interval immediately after driving executed by a main driving pulse, a second interval later than the first interval, and a third interval later than the second interval. The d... | 01/19/2012 |
| 20110317525 | TIMEPIECE DEVICE WITH MULTIPLE-HAND A timepiece device with multiple-hand which can be miniaturized and made thin as a whole has a configuration where a hour hand hour wheel positioned close to an hour hand to which a rotation movement of a 3rd motor via an hour hand gear train mechanism and a functional ... | 12/29/2011 |
| 20110317524 | TIMEPIECE DEVICE WITH MULTIPLE-HAND A timepiece device with multiple-hand includes: one or more hands driven to rotate by one or more driving motors; one or more gear train mechanisms include gears which transmit a rotation movement of the driving motors to the hands; and a support plate which supports th... | 12/29/2011 |
| 20110242946 | Stepping motor control circuit and analog electronic timepiece It is configured to include: a secondary battery as a power supply that supplies power at least to a stepping motor; a rotation detection portion that detects a rotation state of the stepping motor; a control portion that drives the stepping motor by selecting a drive p... | 10/06/2011 |
| 20110235472 | Stepping motor control circuit and analog electronic timepiece A stepping motor control circuit and an analog electronic timepiece which can detect a rotation state including intermediate stopping more accurately are provided. A rotation detection circuit, in detecting whether or not an induction signal generated by the rotation of... | 09/29/2011 |
| 20110205853 | Electronic watch, method of processing the same, and program therefor An electronic watch compares a value counted by an internal counter, which is read by the internal counter when a driving timing signal of a chronograph hand is output, with a counted value stored in a counted value storage unit in advance and, if they match, determines... | 08/25/2011 |
| 20110199865 | Stepping motor control circuit and analogue electronic watch The invention is aimed to be capable of detecting lowering of a power source without providing a circuit specific for voltage detection such as a comparator circuit. A stepping motor control circuit includes a battery configured to supply an electric power at least to a... | 08/18/2011 |
| 20110188352 | Stepping motor control circuit and analogue electronic watch The invention provides a stepping motor control circuit including a rotation detecting circuit configured to detect an induced signal generated according to the state of rotation of a stepping motor, and a control unit configured to select any one of a plurality of driv... | 08/04/2011 |
| 20110158054 | Stepping motor control circuit and analogue electronic watch The invention enables accurate detection of the state of rotation even when the timing of generation of a induced signal is changed due to the relative change of a drive energy with respect to a load. A plurality of types of detection segments are provided as the detect... | 06/30/2011 |
| 20110158053 | Chronograph timepiece Provided is a chronograph timepiece to perform a system reset by an easy-to-understand operation for users, including a crown, an operating unit that at least starts and resets a time period measurement, a time hand drive unit that keeps time of day based on a clock sig... | 06/30/2011 |
| 20110141858 | HAND POSITION DETECTING DEVICE AND ELECTRONIC TIMEPIECE A hand position detecting device including: a first gear rotating with a minute hand; a second gear rotating with a second hand; a first detection target portion that is provided on the first gear and identifiable by light irradiation; a second detection target portion ... | 06/16/2011 |
| 20110141857 | Stepping motor control circuit and analogue electronic watch A stepping motor control circuit includes a rotation detection circuit that detects an induced signal and detects whether or not the induced signal exceeds a predetermined reference threshold voltage in a detection segment having a plurality of detection areas, and a co... | 06/16/2011 |
| 20110122733 | Stepping motor control circuit and analog electronic timepiece A stepping motor control circuit includes a rotation detection portion that detects a rotation condition of a stepping motor, and a control portion that drives and controls the stepping motor by a correction drive pulse P2 having larger drive energy than one of a... | 05/26/2011 |
| 20110080132 | Stepping motor control circuit and analogue electronic watch The invention is intended to detect whether or not a stepping motor is rotated when being driven immediately after a pulse-down control accurately. A control unit drives the stepping motor with a first main drive pulse after the pulse-down control, and then drives the s... | 04/07/2011 |
| 20110063953 | ANALOG ELECTRONIC TIMEPIECE AND STEPPING MOTOR DRIVING METHOD An analog electronic timepiece including, a plurality of hands, a plurality of stepping motors, a maximum speed of at least one stepping motor being different from that of another stepping motor, and a fast-forward control section to simultaneously drive at least two of... | 03/17/2011 |
| 20110051562 | ANALOGUE DISPLAY DEVICE INCLUDING A PLANETARY GEAR DRIVE The invention concerns a timepiece (10) including a display device (26) including a first and second display member (38, 40) displaying first and second pieces of information, the value of the second piece of information being linked to the value of... | 03/03/2011 |
| 20110013492 | Chronograph timepiece A chronograph timepiece makes it possible to make sure that it normally operates at the time of an initial starting operation such as system resetting without having to perform a difficult operation or the like. When a system reset signal is input to a system reset term... | 01/20/2011 |
| 20110007610 | Chronograph timepiece In a chronograph timepiece in which the chronograph hands are electrically rotated by a motor drive pulse and are mechanically zero-restoring-controlled, a basic drive control unit controls a motor so as to drive the chronograph hands when it is detected by a contact po... | 01/13/2011 |
| 20100322036 | TIMEPIECE HAND, MOVEMENT FOR DRIVING SUCH A HAND AND CORRESPONDING TIMEPIECE A hand for a timepiece including a base is intended to be driven by a drive member of a clock movement to rotate about a first axis of rotation, the base being extended by a first index portion. The latter defines a support for a second index portion intended to be driv... | 12/23/2010 |
| 20100295499 | Stepping motor control circuit and analog electronic timepiece When a reset operation or the driving by a correction drive pulse P2 is performed, a stepping motor is driven by a plurality of main drive pulses P0 for initial setting stored in a storage circuit and the stepping motor is rotary driven by a correction dri... | 11/25/2010 |
| 20100270965 | Stepping motor control circuit and analog electronic watch A stepping motor control circuit includes a rotation detecting means for detecting an induced signal generated by rotation of a rotor of a stepping motor, and detecting a rotation state of the stepping motor according to whether the induced signal exceeds a predetermine... | 10/28/2010 |
| 20100254226 | Stepping motor control circuit and analog electronic watch A stepping motor control circuit includes a rotation detecting means for detecting an induced signal generated by rotation of a rotor of a stepping motor, and detecting a rotation state of the stepping motor according to whether the induced signal exceeds a predetermine... | 10/07/2010 |
| 20100238767 | Stepping motor control circuit and analog electronic watch A stepping motor control circuit includes a rotation detecting means which detects an induced signal generated by rotation of a rotor of a stepping motor, and detects a rotation state of the stepping motor according to whether the induced signal exceeds a predetermined ... | 09/23/2010 |
| 20100238768 | Stepping motor control circuit and analogue electronic timepiece A stepping motor control circuit and an analogue electronic timepiece can optimize a rank change operation of a main drive pulse by properly determining an available driving force thus realizing the reduction of the power consumption. A detection interval in which a rot... | 09/23/2010 |
| 20100220556 | Stepping motor control circuit and analog electronic watch A stepping motor control circuit includes a rotation detecting means which detects an induced signal generated by rotation of a rotor of a stepping motor, and detects a rotation state of the stepping motor according to whether the induced signal exceeds a predetermined ... | 09/02/2010 |
| 20100177603 | PIEZOELECTRIC DRIVE DEVICE AND ELECTRONIC DEVICE A piezoelectric drive device includes a piezoelectric actuator and a rotation transfer device. The piezoelectric actuator includes a vibrator and a rotor that is rotated in one specific direction by the vibrator. The rotation transfer device transmits rotational energy ... | 07/15/2010 |
| 20100172219 | Stepping motor control circuit and analogue electronic timepiece The present invention aims to prevent a main drive pulse from being moved to a rank having a potential to cause a non-rotating state. A detection segment for detecting a rotating state of a stepping motor is divided into a first segment immediately after the drive with ... | 07/08/2010 |
| 20100165796 | Stepping motor control circuit and analogue electronic watch According to a stepping motor control circuit of the invention, a rotation detecting period is divided into a first segment for detecting an induced signal generated at least in a second quadrant by the rotation of a rotor immediately after driving of a main driving pul... | 07/01/2010 |
| 20100164426 | Stepping motor control circuit and analogue electronic watch A detecting period of a stepping motor is divided into a first segment for detecting an induced signal generated at least in a second quadrant by the rotation of a rotor immediately after the driving of a main driving pulse, a second segment being provided after the fir... | 07/01/2010 |
| 20100149924 | Stepping motor controller and analog electronic timepiece An invention allows a stepping motor to be reliably driven to rotate when initializing the driving and allows power consumption of the stepping motor to be reduced. The controller, when initializing the driving (for example, replacing a battery), controls a main drive p... | 06/17/2010 |
| 20100091616 | TIMEPIECE WITH DYNAMIC, ANALOGUE DISPLAY OF THE TIME A timepiece with a dynamic, analogue display of the time. The timepiece has a first hand which rotates at a first speed and a second hand which rotates at a second speed, wherein the time is displayed with respect to a time unit when the two hands coincide in that the a... | 04/15/2010 |
| 20100046328 | Wearable Electronic Device with Secondary Digital Display A wearable electronic device of the type wherein information is conveyed in an analog manner at least in part by the use of at least one display hand, wherein the wearable electronic device includes a dial having a dial side and an opposite side, wherein the display han... | 02/25/2010 |
| 20090316535 | Stepping motor control circuit and analog electronic timepiece The present invention aims to prevent a nonrotation state from being brought about even when a drive allowance is changed by variations in a stepping motor or the like. A pulse down counter circuit outputs pulse down control signal for subjecting main drive pulse to con... | 12/24/2009 |
| 20090285057 | Stepping motor drive circuit and analog electronic clock The present invention aims to generate a proper drive pulse in accordance with a motor. A plurality of duty generating circuits each generates a signal at a duty ratio different from one another. A main drive pulse generating circuit uses an output signal of the plurali... | 11/19/2009 |
| 20090129209 | WATCH MOVEMENT OF THE FLY-BACK CHRONOGRAPH TYPE AND TIMEPIECE PROVIDED WITH SUCH A MOVEMENT A description is given of a watch movement of the fly-back chronograph type comprising a frame carrying connected a finishing gear train capable of being train kinematically to a chronograph gear train comprising at least one chronograph runner having a chronograph spin... | 05/21/2009 |
| 20090103398 | CHRONOGRAPH WATCH The present invention concerns a chronograph watch fitted with a going train including:
| 04/23/2009 |
| 20090016172 | Analog Electronic Watch An analog electronic watch of the present invention includes: a display unit (2) for displaying time with a position of a hand; a stepper motor (3) for driving the hand; a motor drive unit (4) for controlling driving of the stepper motor at a predet... | 01/15/2009 |
| 20080151700 | Dial Indicator Display Device A dial indicator display device according has a needle indicator; a needle moving means for moving the needle indicator; a display panel disposed behind the needle indicator and capable of displaying an image; and a drive control means for controlling the needle moving ... | 06/26/2008 |
| 20080123473 | Electronic component and electronic device An electronic component comprising a display panel having an image retention characteristic, and a decorative member disposed layered to the display panel. The decorative member passes the display state of at least a portion of the display panel so that the display can ... | 05/29/2008 |