摘要:
In molecular beam epitaxial growth of GaAs substrate, a compound semiconductor thin film having Ga and As is grown by Ga beam and As beam in MBE chamber and then the substrate is transferred to an annealing chamber where the substrate is annealed under As vapor pressure. The above process is repeated to a predetermined layer level whereby it eliminates divergence from stoichiometric.
摘要:
A nonaqueous electrolyte secondary battery including a positive electrode that includes a lithium-manganese oxide as a positive electrode active material, a negative electrode includes SiOx (0≤X
摘要:
There are provided a component for a timepiece, a movement, and a timepiece having excellent lubricating oil holding performance. There is provided a component for a timepiece including a sliding surface having a surface tension of 10 to 35 mN/m. It is preferable that when lubricating oil having a surface tension of 25 to 35 mN/m is applied to the sliding surface, an interfacial tension between the sliding surface and the lubricating oil is 0 to 7 mN/m.
摘要:
A thermal printer includes: a roll sheet receiving portion; and a delivery slot through which a portion of the recording sheet drawn from the roll sheet is delivered to an outside of the thermal printer; a printing unit including: a thermal head; and a platen roller configured to convey the recording sheet toward the delivery slot while sandwiching the recording sheet between the thermal head and the platen roller; a flap provided on a portion of the casing between the printing unit and the roll sheet receiving portion so as to be pivotable about a first axis, and configured to press the roll sheet in a direction of separating away from the delivery slot through abutment against an outer peripheral surface of the roll sheet; and an urging member configured to urge the flap about the first axis in the direction of separating away from the delivery slot.
摘要:
A battery includes a negative electrode body wound to be flat. The negative electrode body has a plurality of negative electrode main bodies arranged in a line in a negative electrode connection direction in a developed state, and at least one negative electrode connection portion connecting a pair of negative electrode main bodies adjacent in the developed state among the plurality of negative electrode main bodies. The at least one negative electrode connection portion is folded back such that the plurality of negative electrode main bodies overlap each other. A dimension of each of the plurality of negative electrode main bodies in the negative electrode connection direction decreases with separation from an outer end side negative electrode main body. A dimension of the at least one negative electrode connection portions in the negative electrode connection direction increases with separation from an inner end side negative electrode connection portion.
摘要:
A timepiece movement includes a control unit that determines a position of an indicating hand by detecting a rotation state of a rotor, and a train wheel that transmits a drive force of a stepping motor to the indicating hand, and that has a first gear, and a second gear and a third gear which mesh with the first gear. The first gear has a reference load unit that causes fluctuations in a load applied to the rotor in each case of meshing with the second gear and the third gear. A first line segment which connects a center of the first gear and a center of the second gear to each other forms an angle smaller than 180° with a second line segment which connects the center of the first gear and a center of the third gear.
摘要:
Provided is a communication system that includes an electronic timepiece and a communication apparatus, in which, when the electronic-timepiece communication unit demands a communication connection to the communication apparatus, the communication-apparatus control unit inquires whether or not the electronic timepiece is included in the connection approval list that is stored in the communication-apparatus storage unit, in which, in a case where the electronic timepiece is included in the connection approval list, the communication-apparatus communication unit establishes a communication connection to the electronic timepiece and performs data communication through which at least clock time data is sent to the electronic timepiece, and in which, in a case where the electronic timepiece is not included in the connection approval list, the communication-apparatus communication unit does not establish the communication connection to the electronic timepiece.
摘要:
A gasket includes a base portion that extends across an entire circumference in a circumferential direction and is arranged between a bottom portion of a positive electrode can and an opening edge of a negative electrode can, an outer wall portion that protrudes to an upper side from an outer circumferential portion of the base portion and extends across the entire circumference in the circumferential direction, and is in close contact with an inner circumferential surface of the positive electrode can and an outer circumferential surface of the negative electrode can, and an inner wall portion that protrudes to the upper side from the base portion on an inner side of the outer wall portion and extends across the entire circumference in the circumferential direction. An inner circumferential surface of the outer wall portion includes a guide portion that extends in an axial direction with a constant inner diameter, and a sealant holding portion that is positioned between the guide portion and the base portion and holds a sealant having fluidity. An outer circumferential surface of the outer wall portion includes a tapered portion that extends across the entire circumference in the circumferential direction. A diameter of the tapered portion is gradually increased in a direction from a lower side to the upper side.
摘要:
A timepiece movement includes a motor that has a rotor for rotating an indicating hand, a control unit that rotates the rotor by using a main drive pulse and an auxiliary drive pulse, and that determines a reference position of the indicating hand by detecting a rotation state of the rotor when the indicating hand is rotated using a detection drive pulse based on the main drive pulse, a train wheel that transmits a drive force of the motor to the indicating hand, and that has an indicating hand gear and a second intermediate pinion which mesh with each other, and an elastic portion that is disposed in the indicating hand gear, and that is elastically deformed by coming into contact with the second intermediate pinion when the indicating hand is located at the reference position.