Matsudo, Japan
Matsudo, Japan

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Patent
Seiko Instruments Inc. | Date: 2016-08-01

A printing unit includes a thermal head, a platen roller, a head support member and a guide member. The platen roller is abutted against the thermal head with the recording sheet therebetween and rotated to feed the recording sheet. The head support member pivotably supports the thermal head around a pivot shaft so as to move the thermal head toward the platen roller. The head frame supports the head support member via the pivot shaft. The guide member guides the recording sheet between the thermal head and the platen roller. The thermal head and the guide member are positioned with respect to the head frame through the pivot shaft.


Patent
Seiko Instruments Inc. | Date: 2016-08-16

A movement includes a second light emitting element, a second light receiving element, a second wheel & pinion that drives a second hand and that has a first second wheel transmittable portion and a second second wheel transmittable portion through which light is transmittable. A control unit detects a position of the second wheel & pinion by causing the second light receiving element to receive the transmitted light emitted from the second light emitting element and transmitted through the first second wheel transmittable portion or the second second wheel transmittable portion. A second detection wheel has a second detection wheel transmittable portion through which the transmitted light is transmittable. The control unit detects a transmitting time point that the transmitted light is transmitted through the first second wheel transmittable portion or transmitted concurrently the second second wheel transmittable portion and the second detection wheel transmittable portion.


Patent
Seiko Instruments Inc. | Date: 2016-08-16

There is provided a movement which can reduce power consumption when a hand position is detected. The movement includes a center wheel & pinion that drives a minute hand, a minute detection wheel in which a gear ratio of the center wheel & pinion with respect to the minute detection wheel is set to 1/M by using M as an integer, a first light emitting element, and a first light receiving element. The center wheel & pinion has a pair of center wheel transmittable portions which are disposed on the same rotation trajectory, and through which light emitted from the first light emitting element is transmittable. The minute detection wheel has the N-number of minute detection wheel transmittable portions which are disposed on the same rotation trajectory, and through which light emitted from the first light emitting element is transmittable. The minute detection wheel transmittable portions are disposed at an interval of 360/N in a circumferential direction of the minute detection wheel. A pair of the center wheel transmittable portions are disposed in parallel at an unequal angular interval in the circumferential direction of a center axle of the center wheel & pinion. An angular interval of the center wheel transmittable portions adjacent to each other in the circumferential direction of the center axle of the center wheel & pinion is set to magnification of 360/(MN).


Patent
Seiko Instruments Inc. | Date: 2016-08-16

There is provided a movement including a center wheel & pinion that drives a minute hand, a second wheel & pinion that is arranged coaxially with a center axle of the center wheel & pinion, a first light emitting element that is arranged on one side in an axial direction of the center axle with respect to the center wheel & pinion and the second wheel & pinion, and a first light receiving element that is arranged on the other side in the axial direction of the center axle across the second wheel & pinion, and that detects light emitted from the first light emitting element. The center wheel & pinion has a first center wheel transmittable portion through which the light emitted from the first light emitting element is transmittable, and a second center wheel transmittable portion which is disposed on a rotation trajectory of the first center wheel transmittable portion and through which the light emitted from the first light emitting element is transmittable. The second wheel & pinion has a first second wheel transmittable portion which is disposed on the rotation trajectory of the first center wheel transmittable portion and the second center wheel transmittable portion when viewed in the axial direction of the center axle and through which the light emitted from the first light emitting element is transmittable.


Patent
Seiko Instruments Inc. | Date: 2016-08-23

An electronic timepiece which can reduce currents flowing in a pull-down resistor or a pull-up resistor when a crown switch is turned on includes a first switch that is connected to a signal line, a second switch, and a one-shot pulse signal generation circuit. The first switch is inserted into the signal line. One end of the second switch is connected to the signal line on a rear stage of the first switch. The other end of the second switch is connected to a power source. The one-shot pulse signal generation circuit generates a one-shot pulse signal by using a reference clock signal. The second switch is controlled by the one-shot pulse signal.


Patent
Seiko Instruments Inc. and University of Tokyo | Date: 2017-01-18

The present invention relates to a pressure sensor (1) which detects variation in pressures, the pressure sensor including a cantilever (4) which is bent according to a pressure difference between the inside and the outside of a cavity in a sensor main body, and an intra-lever gap (21) which is formed on a proximal end portion (4a) of the cantilever. The proximal end portion is partitioned into a first support portion (22) and a second support portion (23) by an intra-lever gap in a second direction (L2) orthogonal to a first direction (L1) in which the proximal end portion and a distal end portion (4b) are connected to each other in plan view. A doped layer (24) which is provided on a portion of the first and second support portions forms a first displacement detection portion (25) and a second displacement detection portion (26). Lengths of the first and second displacement detection portions are shorter than those of the first and second supports along the second direction.


Patent
Seiko Instruments Inc. and University of Tokyo | Date: 2017-01-18

The present invention provides a pressure sensor (1) which detects variation in pressure, the pressure sensor including a cantilever (4) which bends according to a pressure difference between the inside and the outside of a cavity in a sensor main body, and a first gap (21), a second gap (22), and a third gap (23) which are formed on a proximal end portion (4a) of the cantilever. The first to third gaps electrically partition the proximal end portion of the cantilever into a first support portion (24), a second support portion (25), a first displacement detection portion (26), and a second displacement portion (27) in a second direction (X2) orthogonal to a first direction (X1) in which the proximal end portion and a distal end portion (4b) of the cantilever are connected to each other in plan view. The first and second displacement detection portions detect displacement according to the bending of the cantilever between the first and second support portion.


Patent
Seiko Instruments Inc. | Date: 2017-01-04

A control device comprises: a movement control unit configured to control movement of an object; a detecting unit configured to optically detect, at a specific position, the object moving through control by the movement control unit, to thereby output a detection voltage; and a movement amount determining unit configured to determine a movement amount of the object to be moved through the control by the movement control unit, based on a tendency of a change in the detection voltage when the object is moved.


Provided is grease for a rolling bearing of an information recording and reproducing apparatus 1, containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2).


Patent
Seiko Instruments Inc. | Date: 2016-06-07

An electronic timepiece includes a time display unit which includes a first time display unit and a second time display unit that display time; a control unit which outputs a first change command for changing first time that is displayed by the first time display unit into time based on received time information which is information on time, and outputs a second change command for changing second time that is displayed by the second time display unit into time before change which is time displayed in the first time display unit before the first time is changed into time based on the time information; and a display drive unit which changes the first time, based on the first change command that is output from the control unit, and changes the second time, based on the second change command that is output from the control unit.

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