Abstract: The compound that is contained in a young watermelon fruit and is represented by the formula (1) or formula (2) has an antioxidative effect and further has a skin anti-aging effect. Since these compounds are extracts from plants that are naturally edible, they are very safe for human bodies. Therefore, an antioxidative pharmaceutical composition, an antioxidative processed food composition, and an anti-skin aging composition, which contain these compounds as active ingredients, have high utility value as highly safe compositions.

Abstract: Phytol contained in watermelon sprouts is known to have a cancer cell growth inhibiting effect. However, there is a problem that an amount of phytol to be taken for exhibiting cancer cell growth inhibition is large. A cancer cell growth inhibiting composition comprising at least one of compounds having a structure represented by Formula (1), Formula (2), Formula (6), Formula (7) or Formula (8), or a pharmaceutically acceptable salt thereof as main components has a higher cancer cell growth inhibiting effect than phytol.

Abstract: A leakage diagnosis device for an evaporative fuel treatment device includes a first vent valve, a second vent valve, and a pump. The first vent valve is configured to block a first atmospheric passage, which is a main passage of an atmospheric passage and connects a canister with an atmospheric opening. The second vent valve is configured to block a second atmospheric passage, which is a bypass passage of the first atmospheric passage and connects the canister with the atmospheric opening. The pump is provided on a side of the atmospheric opening relative to the second vent valve in the second atmospheric passage, and is configured to pressurize or depressurize the second atmospheric passage. A malfunction diagnosis device performs a malfunction diagnosis based on an output value of a pressure sensor, a current value of the pump, or an output value of an air-fuel ratio sensor.

Abstract: A leakage diagnosis device for an evaporative fuel treatment device includes a first vent valve, a second vent valve, and a pump. The first vent valve is configured to block a first atmospheric passage, which is a main passage of an atmospheric passage and connects a canister with an atmospheric opening. The second vent valve is configured to block a second atmospheric passage, which is a bypass passage of the first atmospheric passage and connects the canister with the atmospheric opening. The pump is provided on a side of the atmospheric opening relative to the second vent valve in the second atmospheric passage, and is configured to pressurize or depressurize the second atmospheric passage. A malfunction diagnosis device performs a malfunction diagnosis based on an output value of a pressure sensor, a current value of the pump, or an output value of an air-fuel ratio sensor.

Abstract: A vane pump includes a casing, a rotor, vanes, a motor, and a fixed member. The casing defines a pump chamber therein. The rotor is disposed in the casing and configured to eccentrically rotate relative to the casing. The vanes are configured to rotate together with the rotor to slidably move on an inner surface of the casing. The motor is configured to rotate the rotor. Both the motor and the casing are fixed to the fixed member. The casing has an outer side wall surface and a flange. The flange protrudes outward from the outer side wall surface at an intermediate position between both ends of the pump chamber in a rotational axis direction of the rotor. The flange is fixed to the fixed member at a plurality of positions. The fixed member has a linear expansion coefficient that is different from that of the casing.

Abstract: A leakage diagnosis device for an evaporative fuel treatment device includes a first vent valve, a second vent valve, and a pump. The first vent valve is configured to block a first atmospheric passage, which is a main passage of an atmospheric passage and connects a canister with an atmospheric opening. The second vent valve is configured to block a second atmospheric passage, which is a bypass passage of the first atmospheric passage and connects the canister with the atmospheric opening. The pump is provided on a side of the atmospheric opening relative to the second vent valve in the second atmospheric passage, and is configured to pressurize or depressurize the second atmospheric passage. A malfunction diagnosis device performs a malfunction diagnosis based on an output value of a pressure sensor, a current value of the pump, or an output value of an air-fuel ratio sensor.

Abstract: A leak hole determination device in an evaporated fuel processing system. The leak hole determination device includes: a first pressure detector for detecting a first pressure in a fuel tank; a second pressure detector for detecting a second pressure in a canister; and a leak hole determiner for determining whether a leak hole is present. The leak hole determiner determines, after a limit pressure timing subsequent to a depressurization operation for depressurizing an inside of the system, whether a leak hole is present by using a difference between a change speed of a first pressure detected by the first pressure detector and a change speed of a second pressure detected by the second pressure detector.

Abstract: A pressure sensor for an evaporated fuel leak detector includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. Each remaining inner wall surface of the housing recess except for an inner wall surface on the conduction terminal side is provided with an inclined surface and a vertical surface, in a cross section along an axial direction perpendicular to a pressure receiving surface of the sensor unit. The inclined surface is inclined inward as toward a pressure receiving side. The vertical surface extends from the end of the inclined surface on the pressure receiving side to define a filling gap in which the sealing resin is filled between the side surface of the mold resin portion and the vertical surface.

Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking a leak in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit includes a pressure receiving portion for detecting a pressure of a fluid applied to a pressure receiving surface, and a mold resin portion covering a surface of the pressure receiving portion except for the pressure receiving surface. The case has a fluid flow path for introducing the fluid to the pressure receiving surface, and a housing recess in which the sensor unit is accommodated. The sealing resin is arranged in the housing recess, to at least cover a back surface of the mold resin portion located on an opposite side of the pressure receiving surface.

Abstract: Provided is a novel compound that is contained in a young watermelon fruit and has an antioxidative effect. The novel compound that is contained in a young watermelon fruit and is represented by the formula (1) or formula (2) has an antioxidative effect and further has a skin anti-aging effect. Since these compounds are extracts from plants that are naturally edible, they are very safe for human bodies. Therefore, an antioxidative pharmaceutical composition, an antioxidative processed food composition, and an anti-skin aging composition, which contain these compounds as active ingredients, have high utility value as highly safe compositions.

Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking airtightness in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. A buffer recess having an outer shape larger than the outer shape of a pressure receiving surface is formed at a pressure receiving side L1 of the bottom of the housing recess. Further, a protruding cylinder portion protruding into the buffer recess toward a back side L2 is formed at an outer edge of an opening end portion of the fluid flow path on the back side L2.

Abstract: A vane pump includes: a casing forming a pump chamber therein; a rotor arranged inside the casing to rotate eccentrically with respect to the casing; and a plurality of vanes configured to rotate with the rotor and slide on an inner side surface of the casing. At least one of Formula (1): l?(b/a)×k and Formula (2): l?(c/a)×j is satisfied, where “a” represents a height of the pump chamber, “b” represents a height of the rotor, “c” represents a height of the vane in a rotation axis direction of the rotor, and where “l” represents a linear expansion coefficient of the casing in the rotation axis direction, “k” represents a linear expansion coefficient of the rotor in the rotation axis direction, and “j” represents a linear expansion coefficient of the vane in the rotation axis direction.

Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking a leak in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case is provided with a fluid flow path and a housing recess. The case has an annular inner wall surface that defines the housing recess and surrounds a side surface of the mold resin portion. The inner wall surface of the case is provided with a stepped surface that is parallel to the pressure receiving surface or is inclined by an internal angle of less than 90° with respect to the pressure receiving surface, in a cross section along a direction perpendicular to the pressure receiving surface.

Abstract: A vane pump includes a casing, a rotor, vanes, a motor, and a fixed member. The casing defines a pump chamber therein. The rotor is disposed in the casing and configured to eccentrically rotate relative to the casing. The vanes are configured to rotate together with the rotor to slidably move on an inner surface of the casing. The motor is configured to rotate the rotor. Both the motor and the casing are fixed to the fixed member. The casing has an outer side wall surface and a flange. The flange protrudes outward from the outer side wall surface at an intermediate position between both ends of the pump chamber in a rotational axis direction of the rotor. The flange is fixed to the fixed member at a plurality of positions. The fixed member has a linear expansion coefficient that is different from that of the casing.

Abstract: Phytol contained in watermelon sprouts is known to have a cancer cell growth inhibiting effect. However, there is a problem that an amount of phytol to be taken for exhibiting cancer cell growth inhabition is large. A cancer cell growth inhibiting composition comprising at least one of compounds having a structure represented by Formula (1), Formula (2), Formula (6), Formula (7) or Formula (8), or a pharmaceutically acceptable salt thereof as main components has a higher cancer cell growth inhibiting effect than phytol.

Abstract: A leak hole determination device in an evaporated fuel processing system. The leak hole determination device includes: a first pressure detector for detecting a first pressure in a fuel tank; a second pressure detector for detecting a second pressure in a canister; and a leak hole determiner for determining whether a leak hole is present. The leak hole determiner determines, after a limit pressure timing subsequent to a depressurization operation for depressurizing an inside of the system, whether a leak hole is present by using a difference between a change speed of a first pressure detected by the first pressure detector and a change speed of a second pressure detected by the second pressure detector.

Abstract: The evaporative fuel processing system includes a fuel tank, a canister, a pump, a pressure detection unit, a temperature detection unit, and a leak diagnosis unit a leak diagnosis unit configured to diagnose leak in the diagnostic object based on a first pressure change which is a change in pressure detected by the pressure detection unit when the temperature in the diagnostic object changes, a second pressure change which is a change in pressure detected by the pressure detection unit when the inside of the diagnostic object is pressurized or depressurized by the pump, a detected temperature by the temperature detection unit, a first preparation information and a second preparation information.

Abstract: A pressure sensor for an evaporated fuel leak detector includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. Each remaining inner wall surface of the housing recess except for an inner wall surface on the conduction terminal side is provided with an inclined surface and a vertical surface, in a cross section along an axial direction perpendicular to a pressure receiving surface of the sensor unit. The inclined surface is inclined inward as toward a pressure receiving side. The vertical surface extends from the end of the inclined surface on the pressure receiving side to define a filling gap in which the sealing resin is filled between the side surface of the mold resin portion and the vertical surface.

Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking airtightness in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. A buffer recess having an outer shape larger than the outer shape of a pressure receiving surface is formed at a pressure receiving side L1 of the bottom of the housing recess. Further, a protruding cylinder portion protruding into the buffer recess toward a back side L2 is formed at an outer edge of an opening end portion of the fluid flow path on the back side L2.

Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking a leak in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case is provided with a fluid flow path and a housing recess. The case has an annular inner wall surface that defines the housing recess and surrounds a side surface of the mold resin portion. The inner wall surface of the case is provided with a stepped surface that is parallel to the pressure receiving surface or is inclined by an internal angle of less than 90° with respect to the pressure receiving surface, in a cross section along a direction perpendicular to the pressure receiving surface.