Citizen Holdings Company, Ltd.

Citizen Watch Company, Ltd.

Keio University

Takaaki Nozaki

Masafumi Ide

Yosuke Abe

Kaoru Yoda

Toru Takizawa

Ryoji Iwakura

Takaaki Takeishi

Shigeru Morokawa

Takakazu Yano

Takeo Komiyama

Masami Fukuda

Kazuo Sakamoto

Katsuyoshi Aihara

Yuji Noda

Takaaki Ishigure

Seiko Kato

Masaya Suzuki

Kenichiro Kimura

Kana Wada

Akio Yoshinaga

Kazutomo Soma

A detection device of a substance to be measured according to an embodiment of the present disclosure is intended to conveniently detect a bio-related substance such as a bacteria or a fungus. The detection device according to an embodiment of the present disclosure includes, a container that contains solution and a composite particle combining a substance to be measured and a magnetic labeling substance, a magnetic field applying unit that applies a magnetic field to a predetermined region so as to collect the composite particles, wherein spatial light is incident to the predetermined region other than lower region of the container, an imaging unit for imaging the composite particles collected in the predetermined region where the spatial light is incident, a detection unit that detects the composite particles based on the image captured by the imaging unit.

Device for detecting substance being measured

Provided is an optical measuring device that can properly detect a small amount of dental plaque, can be easily incorporated into a toothbrush, and has a simple configuration. The optical measuring device includes a plurality of light sources that irradiate a sample with light having a plurality of wavelengths different from each other, respectively, a detection unit that detects intensities of examined light generated when the sample is irradiated with the light having the plurality of wavelengths, and a control unit that calculates an amount of fluorescent substance to be measured, based on the intensities of the examined light detected by the detection unit in response to the light having the plurality of wavelengths.

Optical measuring device and toothbrush provided with same

Provided is a method for producing a microchannel including an approximately circular cross section with neither a joined surface nor an inlet in a smaller number of steps than has been conventional. The method for producing a microchannel includes the steps of forming a layer of an uncured curable resin () on a substrate (), inserting into the curable resin a needle body () that can inject a liquid (), injecting a liquid in a tubular shape into the curable resin via the needle body while moving the needle body, extracting the needle body from the curable resin, and curing the curable resin to form a channel (A) in a tubular region injected with the liquid.

Method for producing microchannel, and microchannel

The invention is directed to the provision of an optical device in which provisions are made to form a gap between an optical waveguide and a substrate without having to form a groove or the like in the substrate and to prevent any stress from being applied to an optical element even when it is heated by a heater for temperature adjustment. More specifically, the invention provides an optical device includes a substrate, an optical element with an optical waveguide formed in a surface thereof that faces the substrate, bonding portions formed on the substrate at positions that oppose each other across the optical waveguide, a heater, formed on at least one of the optical element and the substrate, for heating the optical waveguide, and a micro bump structure formed from a metallic material, wherein the optical element is bonded to the bonding portions via the micro bump structure in such a manner that a gap is formed between the optical waveguide and the substrate.

Optical device

To provide a liquid crystal device and a method of manufacturing the liquid crystal device which has high durability in an environment of high temperature and high humidity, and which can be applied to optical communication device. A liquid crystal device and a method of manufacturing the liquid crystal device includes a first substrate provided with a frame shaped seal region for encapsulating a liquid crystal layer, and a second substrate provided in opposition to the first substrate, wherein a gold frame shaped structure is provided in the seal region of the first substrate so as to be crushed and deformed to form metallic bond when superimposed and joined to the second substrate, and wherein a gold film is disposed in the portion of the second substrate opposed to the gold frame shaped structure so as to form metallic bond to the gold frame shaped structure.

Liquid crystal device and method of manufacturing liquid crystal device

The present invention is directed to the provision of an information input apparatus that can change the projection position of an input image by tracking a target object and can detect an information input to the input image. More specifically, the invention provides an information input apparatus includes a projection unit which projects an input image, a projection position changing unit which changes the projection position of the input image, a detection sensor which detects the position of a detection target, and an information detection unit which causes the projection position changing unit to change the projection position of the input image by tracking the position of the detection target detected by the detection sensor, and which detects an information input to the input image based on data supplied from the detection sensor.

Information input apparatus

A scanning image projector includes a laser light source, an MEMS scanner having a reflecting mirror which vibrates around first and second axes that are orthogonal to each other, and an MEMS control unit having a high speed drive circuit which causes resonant vibration of the reflecting mirror at high speed around the first axis, a low speed drive circuit which causes non-resonant vibration of the reflecting mirror at low speed around the second axis, and an offset drive circuit which offsets a position on the second axis in a non-resonant vibration region where the low-speed vibration is caused by a predetermined amount, wherein the MEMS control unit displays an image in a predetermined display region by drive signals from the high and the low speed drive circuits, and moves a position of the display region in the non-resonant vibration region by an offset signal from the offset drive circuit.

Scanning image projector and method of driving scanning image projector

An optical device () are formed by bonding a optical element () having an optical waveguide () with a substrate (). On a surface of the optical element () facing the substrate () formed are the optical waveguide () and a thin film heater () that heats the optical waveguide (). The optical element () and the substrate () are bonded through a first bonding part () and a second bonding part () made of metal material. The thin film heater () is electrically connected with a wire on the substrate () through the first bonding part () and the second bonding part (). In this way, additional wires for electrical connection can be omitted, the optical elementcan be miniaturized removing a superfluous region, and the manufacturing process can be simplified.

In an optical devicein which a wavelength converting elementis disposed as an optical element on a silicon substrate, configuration includes heatersandformed on the silicon substrate; and micro bumpsthat are made of Au, that bond the silicon substrateand the wavelength converting element, and that transfer the heat generated by the heatersto the wavelength converting element

A laser source includes a laser device configured to emit laser light at a given angle with respect to a normal of an output end face; and an optical device configured to include an optical waveguide that guides and outputs the laser light. The output end face of the laser device is parallel to an input end face of the optical device, and the optical waveguide extends in a direction of &#x3b8;that is given by &#x3b8;=arcsin(sin &#x3b8;/n), where &#x3b8;denotes an outgoing angle of the laser light from the laser device, and ndenotes an effective refractive index of the optical waveguide for the laser light.

Laser source

A plurality of quartz crystal resonators having different resonance frequencies are connected in parallel. A combined admittance of the resonators is measured. Equivalent circuit constants of all the resonators are obtained by a method of least squares from admittance characteristics. A change in the resonance frequency is measured and mass of a substance adsorbed to a piezoelectric transducer is calculated.

QCM sensor and QCM sensor device

A time keeping device of an electric timepiece comprising one motor that can rotate in the forward direction and the reverse direction, a branch mechanism, and a plurality of wheel trains that are branched by the branch mechanism, wherein the motor is rotated in the forward direction to drive one wheel train thereby to carry out a mechanical display, and is rotated in the reverse direction to drive the other wheel train thereby to carry out another mechanical display. The time keeping device further comprises a merge mechanism in addition to the branch mechanism, and a plurality of wheel trains that are branched by the branch mechanism and are merged by the merge mechanism. The motor is rotated in the forward direction to drive one wheel train thereby to carry out a mechanical display, and is rotated in the reverse direction to drive the other wheel train thereby to carry out another mechanical display.

Timer of electric timepiece

Charging a storage cell requires the electromotive force exerted at a photogenerating cell in addition to the voltage equal to or higher than the forward on voltage developed at an backflow preventing diode. Therefore, the charging is inefficient. Moreover, the area of the backflow preventing diode must be large in consideration for a current supply from the photogenerating cell at a high intensity of illumination. A charging circuit, constructed using a differential amplifier, which has a power supply therefor separated from another power supply, is used as a direction-of-current detecting circuit that detects the direction of current from a voltage difference between two different power supplies. Consequently, a switch is logically turned on or off depending on whether charging or non-charging is under way. Thus, on voltage to be developed during charging is lowered. Moreover, the size or area of a transistor that acts as a logical circuit is made smaller than that of the backflow preventing diode. Furthermore, the energy of a storage cell included in the charging circuit is hardly consumed in any states.

Growing community of inventors

Iruma, Japan

Takaaki Nozaki