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Tokorozawa, Japan

Patent
Citizen Holdings Co. and Citizen Electronics Co. | Date: 2015-04-28

A planar light unit is provided that suppresses appearance of a bright line when viewed from the side of the emission surface of the light guide plate. The planar light unit includes a light source, and a light guide plate including an incident surface for receiving light emitted from the light source, an emission surface from which the light introduced through the incident surface is emitted, an opposing surface disposed so as to oppose the emission surface, and a side surface disposed along an outer periphery of the emission surface and the opposing surface. The emission surface has a non-rectangular outer shape, and at least a part of the side surface is formed as a diffusing surface.


Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2015-04-15

To provide an LED lighting apparatus and a method for manufacturing the same that can improve the bonding strength between an aluminum substrate and a printed wiring substrate. An LED lighting apparatus and a method for manufacturing the same, the LED lighting apparatus includes an aluminum substrate, a plurality of reflectivity-enhanced layers formed on the aluminum substrate, an LED device bonded on said plurality of reflectivity-enhanced layers, a printed wiring substrate bonded onto a region on the aluminum substrate other than a region where the plurality of reflectivity-enhanced layers are formed, a wire for connecting between the printed wiring substrate and the LED device, a frame member formed so as to surround said LED device, and a phosphor resin deposited over a region inside the frame member.


Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2015-06-15

An LED light emitting device with good color mixing property is provided. The LED light emitting device including a rectangular substrate having a short-side and a long-side and a first LED element, a second LED element and a third LED element that are mounted on a surface of the substrate and emit light with wavelengths different from one another, wherein the first LED element and the second LED element are mounted on the substrate so that a first distance from the short-side to a mounting position of the first LED element in the long-side direction of the substrate and a second distance from the short-side to a mounting position of the second LED element in the long-side direction are the same.


Patent
Citizen Holdings Co. and Citizen Systems Japan Co. | Date: 2015-01-14

Provided is a printer in which the rotating shaft of a ribbon roller can be connected to its driving unit with high accuracy by using a mechanism simple in structure, while preventing breakage that may occur when connecting the rotating shaft to the driving unit. The printer (


Patent
Citizen Holdings Co. and Citizen Electronics Co. | Date: 2015-08-05

In accordance with a first aspect of the present inventive subject matter, a lighting device includes light-emitting elements arranged in lines that are extended in parallel with one another, the light-emitting elements being divided into groups each including the same number of light-emitting elements, a first connecting electrode is disposed adjacent to one end portion of the lines extended, a second connecting electrode is disposed adjacent to another end portion of the lines extended, and the light-emitting elements within each group are electrically connected in series with one another by metallic wires and electrically connected in series to the first connecting electrode and to the second connecting electrode. The groups each include the same number of light-emitting elements that are electrically connected in parallel between the first connecting electrode and the second connecting electrode.

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