Abstract: A fluid-heating device for heating fluid with a heater includes: a heating portion that is molded so as to cover the surrounding of the heater; and a support body integrally cast into the heating portion, the heating portion being molded in a state in which the heater is supported by the support body in a die for molding the heating portion.

Abstract: A dental handpiece configured to rotatably drive a dental treatment tool mounted in a chuck mechanism includes the chuck mechanism in which the dental treatment tool is mounted so as to be attachable and detachable. The chuck mechanism includes a hollow cylindrical sleeve, a cylindrical slide member, a plurality of divided movable pieces disposed in the sleeve, an elastic biasing member configured to bias the cylindrical slide member forward in an insertion direction of the dental treatment tool, and a stopper unit which restricts forward axial movement of the plurality of divided movable pieces in the insertion direction. The divided movable pieces are moved in a radial direction by relative movement between the divided movable pieces and the cylindrical slide member in the axial direction, so that fixation of the dental treatment tool and release of the fixation are performed.

Abstract: A power generator includes an electret including a first charged surface and a second charged surface having opposite polarities, a first electrode partially formed on the first charged surface, a second electrode formed on the second charged surface, a third electrode disposed to face the first charged surface with a space, and at least one of a power storage unit or an output unit. The first charged surface has a current collecting surface that is exposed outward. The first electrode and the second electrode form a first power generating unit and the third electrode and the second electrode form a second power generating unit. The electret is formed by polarizing an electret material that includes an inorganic dielectric having a bandgap energy of 4 eV or more.

Abstract: A power generator includes a power generating unit and at least one of a power storage unit or an output unit that is electrically connected to the power generating unit. The power generating unit includes an electret having a first charged surface and a second charged surface that are charged with opposite polarities, a first electrode formed on the first charged surface, and a second electrode formed on the second charged surface. The electret is formed by polarizing an electret material that includes an inorganic dielectric having a bandgap energy of 4 eV or more. At least one of the first electrode or the second electrode are partially disposed on the corresponding charged surface such that at least one of the first charged surface or the second charged surface has a portion as a current collecting surface exposed outward.

Abstract: A filter for an oil catch apparatus is provided. The oil catch apparatus is capable of efficiently extracting oil from air flowing through the oil catch apparatus while being of compact size. The filter includes a cylindrically wound main filter unit, a first keep member for keeping one end of the main filter unit, and a second keep member for keeping the other end of the main filter unit. Air flowing into the main filter unit from an opening formed in the first keep member is cleared of impurities upon passing through the main filter unit, and exits out of the main filter unit.

Abstract: An analysis chip includes a substrate main body having a plurality of reaction portions in which a selective binding substance selectively binding to a substance to be examined is immobilized; a corner portion in which different straight lines or curved lines intersect with each other in a cross section in which a plane passing through a surface of the substrate main body on which the reaction portions are provided is a cut surface; a partition portion formed by applying water repellent treatment to the surface of the substrate main body on which the reaction portions are provided, the partition portion being configured to partition the reaction portions inside an outer edge formed by the surface, and a connection portion having water repellency, the connection portion being configured to connect between a part of the partition portion and the corner portion.

Abstract: An oil catch apparatus is provided. The oil catch apparatus is capable of efficiently extracting oil from air flowing through the oil catch apparatus while being of compact size. A filter of the oil catch apparatus includes a cylindrically wound main filter unit and a keep member for keeping both ends of the main filter unit. Air flowing into the main filter unit is cleared of impurities upon passing through the main filter unit, and exits out of the main filter unit.

Abstract: A filter for an oil catch apparatus is provided. The oil catch apparatus is capable of efficiently extracting oil from air flowing through the oil catch apparatus while being of compact size. The filter includes a cylindrically wound main filter unit, a first keep member for keeping one end of the main filter unit, and a second keep member for keeping the other end of the main filter unit. Air flowing into the main filter unit from an opening formed in the first keep member is cleared of impurities upon passing through the main filter unit, and exits out of the main filter unit.

Abstract: An analysis chip includes a substrate main body having a plurality of reaction portions in which a selective binding substance selectively binding to a substance to be examined is immobilized; a corner portion in which different straight lines or curved lines intersect with each other in a cross section in which a plane passing through a surface of the substrate main body on which the reaction portions are provided is a cut surface; a partition portion formed by applying water repellent treatment to the surface of the substrate main body on which the reaction portions are provided, the partition portion being configured to partition the reaction portions inside an outer edge formed by the surface, and a connection portion having water repellency, the connection portion being configured to connect between a part of the partition potion and the corner portion.

Abstract: An oil catch apparatus is provided. The oil catch apparatus is capable of efficiently extracting oil from air flowing through the oil catch apparatus while being of compact size. A filter of the oil catch apparatus includes a cylindrically wound main filter unit and a keep member for keeping both ends of the main filter unit. Air flowing into the main filter unit is cleared of impurities upon passing through the main filter unit, and exits out of the main filter unit.

Abstract: A projection display device includes a light source; a light modulating section that modulates light from the light source; a main control section that drives and controls the light source and the light modulating section for operation; a standby control section that performs control in a standby state; a main power source unit that supplies power to the main control section; and a standby power source unit that, in the standby state, shuts off power supply from a commercial power source to the main power source unit and supplies power to the standby control section. In this arrangement, the standby power source unit is disposed on a substrate different from that the main power source unit is disposed on.