Abstract: An ultrasonic sensor is provided with an ultrasonic element that converts between an electrical signal and an ultrasonic vibration and an element accommodating case having a bottomed cylindrical shape and accommodating the ultrasonic element inside thereof. The element accommodating case includes a side plate portion formed in a cylindrical shape that surrounds a directional center axis, and a bottom plate portion that closes one end side of the side plate portion in an axial direction which is parallel to the directional center axis. The ultrasonic element is attached to the bottom plate portion. The bottom plate portion includes at least one protrusion. The protrusions vibrate together with the bottom plate portion when the bottom plate portion vibrates as an ultrasonic vibration.

Abstract: Photosensitive compositions containing nanosized light emitting materials and (meth)acrylic polymer are suitable for use in a variety of optical applications, for example the preparation of quantum material doped photoresist films, especially for optical devices. Optical films can be prepared be by: a) providing the photosensitive composition onto a substrate, and b) polymerizing the photosensitive composition by exposing the photosensitive composition to radiation.

Abstract: According to one embodiment, a memory system includes a first memory, an interface circuit, and a processor. The interface circuit is configured to receive a first request from an external device. The processor is configured to select a mode among a plurality of modes in response to the first request, and perform, on data read from the first memory, error correction of the selected mode.

Abstract: A polymer (P) to generate an acid by light exposure and to change in solubility in a developer with an action of the acid, the polymer containing: a repeating unit represented by the following formula (A-1); a repeating unit represented by any one or more selected from the following formulae (B-1), (B-2), (B-3), and (B-4) to generate an acid by light exposure; and a repeating unit represented by the following formula (a-1) or (a-2) other than the repeating unit represented by the formula (A-1). This provides a polymer to be contained in a resist composition that is excellent in etching resistance and that makes it possible to form a pattern with high sensitivity, high resolution, high contrast, and small LWR and CDU when using, in particular, an electron beam or an extreme ultraviolet ray (EUV) having a wavelength of 13.5 nm; a resist composition containing the polymer; and a patterning process using the resist composition.

Abstract: The present invention relates to a composition comprising a semiconducting light emitting nanoparticle.

Abstract: The present invention relates to a composition comprising a semiconducting light emitting nanoparticle.

Abstract: Provided is a structure for attaching an object to be attached capable of maintaining an appropriate attachment state of an object to be attached by attaching the object to be attached to an attachment portion with distortion being less likely to be accumulated. The structure for attaching an object to be attached, includes an object to be attached including a first surface having an adhesive layer and a second surface which is a surface on a side opposite to the first surface and has no adhesive layer, and an attachment portion to which the object to be attached is attached to face the second surface of the object to be attached, and at least a part of the object to be attached is deformable in a state where the object to be attached is attached.

Abstract: Even if the end surface of the optical connector is inclined with respect to the optical axis of the optical fiber, the optical connector end surface cleaner has sufficient cleaning ability and has high tape conveyance property when the cleaning tape is conveyed and displaced. Further, in the case where there are guide pins protruding from the end surface of the optical connector, an optical connector end surface cleaner is provided which has a cleaning capability for the optical connector end surface and the guide pins.

Abstract: The present invention relates to a composition comprising a nanoparticle.

Abstract: Provided is an optical connector cleaning tool with a simple structure that can sufficiently transmit transmission force. The optical connector cleaning tool includes a supply reel on which a cleaning material is wound so that it can be fed out, a winding reel that winds the cleaning material that has passed through a cleaning head, an operating body that can be pivoted by operation by an operator, and a rotary engaging body that engages with the operating body to transmit the movement of the operating body to rotate the winding reel, in which the arc caused by the pivoting of the operating body is inscribed in the arc caused by the rotation of the rotary engaging body, and the operating body and the rotary engaging body are engaged.

Abstract: To provide a cleaner configured so that the cleaner can accurately remove dust and dirt, will leave less adhesive residue, and can sufficiently clean areas including an end surface of a ferrule and a guide pin. A cleaner is provided with an adhesive layer having an exposed surface facing an end surface of a connector from which a guide pin protrudes, the adhesive layer being elastically deformable when subjected to contact with the guide pin, and a holding part having a holding wall for holding the adhesive layer while exposing at least the exposed surface, the holding part being capable of bringing the guide pin into contact with the adhesive layer at a position at which the distance from the guide pin to the holding wall is greater than the length of the guide pin.

Abstract: Provided is a cleaning device that can follow a complicated shape and can accurately remove stains by using a resin having high toughness. A cleaning device including a contaminant collector, in which the cleaning device is characterized in that the contaminant collector includes a polyurethane resin, the contaminant collector has an Asker C hardness of 45 to 90, and the contaminant collector has a tensile strength of 2.0 MPa or more and 30 MPa or less.

Abstract: The present invention relates to a photosensitive composition, and a color conversion film. The present invention further relates to a use of the photosensitive composition in a color conversion film fabrication process, and to a use of the color conversion film in an optical device. The invention further more relates to an optical device comprising the color conversion film and method for preparing the color conversion film and the optical device.

Abstract: Provided is an optical connector cleaning tool that is unlikely to cause a static charge and can accurately remove dust located on an end surface of an optical connector.

Abstract: The present invention relates to a composition comprising a semiconducting light emitting nanoparticle.

Abstract: The present invention relates to a composition and to a method of manufacturing a composition.

Abstract: A cleaning tool that cleans an optical connector includes an adhesive body that contacts an optical signal region of the optical connector where an optical signal enters and is emitted from the optical connector; and a base that holds the adhesive body. The base includes a first protrusion on a holding surface of a holding part that holds the adhesive body. The first protrusion is disposed at a rear side of a section of the adhesive body and is in contact with the optical signal region.

Abstract: To provide a cleaner capable of easily cleaning the side surface of a pin of an optical connector. There is provided an optical connector end surface cleaner 10A, including: a cleaning tape 11 to be contacted with the end surface of an optical connector 20; and a receiving part 14A in which at least one pin insertion recess 15A into which at least one pin 22 of the optical connector 20 is capably inserted is formed, wherein a part of the cleaning tape 11 is inserted into the at least one pin insertion recess 15A together with the at least one pin 22 by being pressed by the at least one pin 22 to be inserted into the at least one pin insertion recess 15A of the receiving part 14A, and is interposed between an inner wall surface of the at least one pin insertion recess 15A and a side surface of the at least one pin 22.

Abstract: The present invention relates to a photosensitive composition, and a color conversion film. The present invention further relates to a use of the photosensitive composition in a color conversion film fabrication process, and to a use of the color conversion film in an optical device. The invention further more relates to an optical device comprising the color conversion film and method for preparing the color conversion film and the optical device.