Abstract: In a polishing apparatus an optical connector polishing jig holds the MT ferrule provided at the connection end portion of the optical connector, the optical connector polishing jig includes: a cylinder base; a cylinder shaft held on the cylinder base to be capable of moving in the up-down direction; and a set block connected to an end of the cylinder shaft and having a hole into which the MT ferrule is inserted and in which fixing means for adjusting the pressing force and fixing the MT ferrule is inserted, and a surface of the fixing means that comes into contact with the MT ferrule has a protrusion that partially protrudes to apply a pressing force to the MT ferrule such that when the MT ferrule is fixed, an end surface of the MT ferrule is slightly deformed and a center portion of the end surface in a longitudinal direction swells.

Abstract: An embodiment of the invention of this application provides a polishing pad that eliminates a gap between an optical connector and a polishing film during polishing. A polishing pad of the embodiment is used by being placed between a polishing platen and a polishing sheet in a case of performing spherical polishing of an end surface of an optical connector including an optical fiber and a ferrule. The optical connector polishing pad of the embodiment has rebound resilience higher than 20%. The optical connector polishing pad of the embodiment can be formed from a urethane-based material.

Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.5 mm, a thickness of a compressive stress layer being 10 ?m or more, and a surface compressive stress of the compressive stress layer being 650 MPa or higher, and when the thickness (unit: mm) of the cover glass is represented by x and an energy absorption rate (unit: %) of the holding portion is represented by y, Expression (1) is satisfied, and impact resistance of the cover glass is excellent: y??37.1×ln(x)+53.7??(1).

Abstract: In a polishing apparatus, an optical connector polishing jig holds the MT ferrule provided at the connection end portion of the optical connector, the optical connector polishing jig includes: a cylinder base; a cylinder shaft held on the cylinder base to be capable of moving in the up-down direction; and a set block connected to an end of the cylinder shaft and having a hole into which the MT ferrule is inserted and in which fixing means for adjusting the pressing force and fixing the MT ferrule is inserted, and a surface of the fixing means that comes into contact with the MT ferrule has a protrusion that partially protrudes to apply a pressing force to the MT ferrule such that when the MT ferrule is fixed, an end surface of the MT ferrule is slightly deformed and a center portion of the end surface in a longitudinal direction swells.

Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.

Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.5 mm, a thickness of a compressive stress layer being 10 ?m or more, and a surface compressive stress of a compressive layer being 650 MPa or higher, and when the thickness (unit: mm) of the cover glass is represented by x and an energy absorption rate (unit: %) of the holding portion is represented by y. Expression (1) is satisfied, and impact resistance of the cover glass is excellent: y??37.1×ln(x)+53.7??(1).

Abstract: An optical connector cleaning tool includes a supply reel (11) having a belt-like cleaning cloth (3), and a winding bobbin (12) for winding the cleaning cloth (3). The optical connector cleaning tool also includes a housing (7) which rotatably supports the supply reel (11) and winding bobbin (12), a cleaning head (13) which comes in contact with the cleaning cloth (3), and a pressing member (5) which supports the cleaning head (13) and moves in a longitudinal direction with respect to the housing (7). The optical connector cleaning tool further includes a slide spring (53) which biases the pressing member (5) forward, and a transmission mechanism (33) which transmits an action of the pressing member (5) to the winding bobbin (12). The transmission mechanism (33) includes a rack (32) on the side of the pressing member (5), and a pinion on the side of the winding bobbin (12).

Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.5 mm, a thickness of a compressive stress layer being 650 MPa or higher, and when the thickness (unit: mm) of the cover glass is represented by x and an energy absorption rate (unit: %) of the holding portion is represented by y. Expression (1) is satisfied, and impact resistance of the cover glass is excellent: y??37.1×ln(x)+53.

Abstract: An object is to maintain the hydrogen sulfide concentration in rearing water at a constant value without measuring the hydrogen sulfide concentration in the rearing water. The present invention includes: a water tank 10 that stores rearing water W leaving a gas phase at an upper part; a gas sensor 50 to detect hydrogen sulfide gas concentration in the gas phase G; and a hydrogen sulfide supplying means F to supply hydrogen sulfide to the rearing water W based on a detection signal output from the gas sensor 50 so as to maintain a hydrogen sulfide concentration in the rearing water W at a predetermined value.

Abstract: An optical connector cleaning tool includes a supply reel (11) having a belt-like cleaning cloth (3), and a winding bobbin (12) for winding the cleaning cloth (3). The optical connector cleaning tool also includes a housing (7) which rotatably supports the supply reel (11) and winding bobbin (12), a cleaning head (13) which comes in contact with the cleaning cloth (3), and a pressing member (5) which supports the cleaning head (13) and moves in a longitudinal direction with respect to the housing (7). The optical connector cleaning tool further includes a slide spring (53) which biases the pressing member (5) forward, and a transmission mechanism (33) which transmits an action of the pressing member (5) to the winding bobbin (12). The transmission mechanism (33) includes a rack (32) on the side of the pressing member (5), and a pinion on the side of the winding bobbin (12).

Abstract: An optical connector cleaner comprising a supply reel, a take-up reel, a case, an operation lever, a take-up mechanism, and a holding member. The supply reel stores a cleaning cloth member having one end side wounded thereon. The take-up reel takes up the other end side of the cleaning cloth member. The case has a connector connection portion on which the cleaning cloth member is exposed. The operation lever that has an operation portion projecting from the case and is swingably supported. The take-up mechanism rotates the take-up reel in a take-up direction by a predetermined angle when the operation lever swings. The holding member holds an optical connector on the connector connection portion in a state in which a coupling face of the optical connector is pressed against the cleaning cloth member exposed to the connector connection portion.

Abstract: An object is to maintain the hydrogen sulfide concentration in rearing water at a constant value without measuring the hydrogen sulfide concentration in the rearing water. The present invention includes: a water tank 10 that stores rearing water W leaving a gas phase at an upper part; a gas sensor 50 to detect hydrogen sulfide gas concentration in the gas phase G; and a hydrogen sulfide supplying means F to supply hydrogen sulfide to the rearing water W based on a detection signal output from the gas sensor 50 so as to maintain a hydrogen sulfide concentration in the rearing water W at a predetermined value.

Abstract: A method for immobilizing living microorganisms includes a step (1) of disposing a solution containing microorganisms as an electrolyte on the surface of a substrate at least one portion of which is an electrode, and applying a constant potential to the electrode to cause at least a portion of the microorganisms to attach to the surface of the substrate. The constant potential in step (1) is greater than ?0.5 V but not greater than ?0.2 V (vs Ag/AgCl) or greater than +0.2 V but not greater than +0.4 V (vs Ag/AgCl). The electrolyte in step (1) does not contain a source of nutrition for the microorganisms.

Abstract: A method for immobilizing living microorganisms includes a step (1) of disposing a solution containing microorganisms as an electrolyte on the surface of a substrate at least one portion of which is an electrode, and applying a constant potential to the electrode to cause at least a portion of the microorganisms to attach to the surface of the substrate. The constant potential in step (1) is greater than ?0.5 V but not greater than ?0.2 V (vs Ag/AgCl) or greater than +0.2 V but not greater than +0.4 V (vs Ag/AgCl). The electrolyte in step (1) does not contain a source of nutrition for the microorganisms.

Abstract: An optical connector cleaning tool includes a holder, cleaner, and cap. The holder includes, a cylindrical slider, a cylindrical body which is rotatable and movable in the axial direction with respect to the slider, and a slider return spring which biases the body forward to return the slider to the initial position. The slider has a pair of elastic pieces having guide projections. In the outer circumferential surface of the body, spiral grooves with which the guide projections engage are formed within the angular range of 360°. When the slider moves forward, the body rotates by the cam action of the guide projections and spiral grooves. The cleaner includes, a cleaning thread accommodated in a rotary pod, a supply reel, a take-up reel, and a cleaning pin, and is connected to the body.

Abstract: An optical connector clearing tool (1) includes a holder (2), cleaner (5), and cap (6). The holder (2) includes, e.g., a cylindrical slider (10), a cylindrical body (12) installed to be rotatable and movable in the axial direction with respect to the slider (10), and a slider return spring (13) which biases the body (12) forward to return the slider (10) to the initial position. The slider (10) has a pair of elastic pieces (16) having guide projections (17). In the outer circumferential surface of the body (12), spiral grooves (25, 26) with which the guide projections (17) engage are formed within the angular range of 360°. When the slider (10) moves forward, the body (12) rotates by the cam action of the guide projections (17) and spiral grooves (25, 26). The cleaner (5) includes, e.g., a cleaning thread (41) accommodated in a rotary pod (40), a supply reel (42), a take-up reel (43), and a cleaning pin (44), and is connected to the body (12).

Abstract: A fuel feed apparatus includes a sub-tank that is received in the fuel tank and a fuel pump that is received in the sub-tank and pumps fuel in the sub-tank toward the outside of the fuel tank. The sub-tank has a bottom wall that has a first passageway extending in the axial direction of the sub-tank, to which a suction jet pump unit to suction fuel in the fuel tank into the sub-tank can be selectively mounted.

Abstract: A fuel feed apparatus includes a sub-tank that is received in the fuel tank and a fuel pump that is received in the sub-tank and pumps fuel in the sub-tank toward the outside of the fuel tank. The sub-tank has a bottom wall that has a first passageway extending in the axial direction of the sub-tank, to which a suction jet pump unit to suction fuel in the fuel tank into the sub-tank can be selectively mounted.