Abstract: A diaphragm pump includes a piezoelectric member, a diaphragm having surfaces, and a supporting member. The piezoelectric member deforms when a voltage is applied. The diaphragm deforms in response to deformation of the piezoelectric member. The supporting member supports the diaphragm. A space is formed between the diaphragm and the supporting member. Fluid is made to flow by changing a volume of the space by deforming the diaphragm. The surfaces of the diaphragm face the space and include a first surface that deforms in response to deformation of the piezoelectric member and include a second surface not connected to the first surface. The diaphragm bonds to the supporting member with the second surface.

Abstract: An object is to provide a snap-fit structure in which space on a side where an engaging portion elastically deforms can be effectively utilized. The snap-fit structure includes a mounting component with a first engaging portion and a second engaging portion and a mounted component formed with an engaged portion for engaging the first engaging portion and the second engaging portion. The second engaging portion is arranged in a position not aligned on the same line in a direction in which the first engaging portion elastically deforms.

Abstract: An electrodeposition bath, water-washing baths, a first filtration membrane which feeds filtrate and concentrated-solution obtained by filtering electrodeposition-solution in the electrodeposition bath to the water-washing bath in a last stage and the electrodeposition bath, a feed system that feeds filtrate-water obtained by performing ultrafiltration or microfiltration on water after water-washing in the water-washing bath, a second filtration membrane which feeds filtrate and concentrated-solution obtained by filtering the filtrate-water fed by the feed system to the water-washing bath in the last stage and one of the electrodeposition bath and a water-washing bath other than the water-washing bath in the last stage, respectively, and a flow rate adjustment unit that adjusts a feed amount of each of the filtrate obtained by filtration by the first filtration membrane and the filtrate obtained by filtration by the second filtration membrane to the water-washing bath in the last stage are included.

Abstract: An electrodeposition bath, water-washing baths, a first filtration membrane which feeds filtrate and concentrated-solution obtained by filtering electrodeposition-solution in the electrodeposition bath to the water-washing bath in a last stage and the electrodeposition bath, a feed system that feeds filtrate-water obtained by performing ultrafiltration or microfiltration on water after water-washing in the water-washing bath, a second filtration membrane which feeds filtrate and concentrated-solution obtained by filtering the filtrate-water fed by the feed system to the water-washing bath in the last stage and one of the electrodeposition bath and a water-washing bath other than the water-washing bath in the last stage, respectively, and a flow rate adjustment unit that adjusts a feed amount of each of the filtrate obtained by filtration by the first filtration membrane and the filtrate obtained by filtration by the second filtration membrane to the water-washing bath in the last stage are included.

Abstract: A liquid storage container, including: a housing; a liquid absorbing member configured to absorb and hold a liquid disposed inside the housing; a filter disposed at a position facing a first surface of the liquid absorbing member; and a liquid ejection substrate disposed at a position facing a surface of the filter opposite to a surface of the filter facing the liquid absorbing member, wherein the liquid absorbing member includes a through hole tubularly penetrating the liquid absorbing member from the first surface to a second surface which is a surface opposite to the first surface, and an opening of the through hole on the first surface side opens at a position facing the filter.

Abstract: A container including a container member having a bottom portion and a side wall portion which form a depression, and a lid member configured to adhere to the side wall portion to close an opening of the depression, wherein a projection is provided in an area of the side wall portion to be adhered to the lid member, part of the projection forms an extending portion extending along the lid member as a result of the adhesion, and the extending portion extends toward an inside and an outside and the length in an extending direction of the extending portion extending toward the inside is longer than the length in the extending direction of the extending portion extending toward the outside.

Abstract: A recording head including: a supporting member including a depression and a peripheral portion in the periphery of the depression; a recording element substrate having an ejection port surface provided with an ejection port opening therein and arranged in the depression; and a tape adhered to the ejection port surface, wherein when viewing the recording head from above in a direction vertical to the ejection port surface, the recording element substrate and the peripheral portion are at least partly apart from each other via a groove, which is part of the depression, and the tape includes a portion located on the peripheral portion and a portion located on the groove at one lateral end thereof.

Abstract: An object of the present invention is to provide a system for recovery of electrodeposition paint wherein the loss of the electrodeposition paint is not increased, even if the number of stages of a multistage recovery and washing process with a membrane filtration filtrate is reduced in electrodeposition painting. The system for recovery of electrodeposition paint of the present invention, in which a membrane filtration filtrate of electrodeposition bath liquid is supplied to a final stage washing tank of the multistage recovery and washing process with a membrane filtration filtrate, is characterized in that a filtrate obtained by membrane filtration of the final stage washing tank liquid is supplied to the final stage washing tank and concentrated liquid is supplied to the electrodeposition bath and/or a washing tank at other than the final stage.

Abstract: A recording head including: a supporting member including a depression and a peripheral portion in the periphery of the depression; a recording element substrate having an ejection port surface provided with an ejection port opening therein and arranged in the depression; and a tape adhered to the ejection port surface, wherein when viewing the recording head from above in a direction vertical to the ejection port surface, the recording element substrate and the peripheral portion are at least partly apart from each other via a groove, which is part of the depression, and the tape includes a portion located on the peripheral portion and a portion located on the groove at one lateral end thereof.

Abstract: A liquid storage container, including: a housing; a liquid absorbing member configured to absorb and hold a liquid disposed inside the housing; a filter disposed at a position facing a first surface of the liquid absorbing member; and a liquid ejection substrate disposed at a position facing a surface of the filter opposite to a surface of the filter facing the liquid absorbing member, wherein the liquid absorbing member includes a through hole tubularly penetrating the liquid absorbing member from the first surface to a second surface which is a surface opposite to the first surface, and an opening of the through hole on the first surface side opens at a position facing the filter.

Abstract: In a case where a liquid holding member is inserted into a storage section to produce a liquid storage container, the occurrence of a wrinkle or a partial separation in the liquid holding member can be suppressed. More specifically, a plurality of compressing needles are stuck into an ink holding member before insertion and moved in directions shown by arrows to compress the ink holding member. The ink holding member in a compressed state is inserted without coming into contact with a wall surface of an ink storage section. This can prevent the ink holding member from coming into contact with an inner wall of the storage container or the like during the insertion of the ink holding member into the storage container and can prevent the occurrence of a wrinkle or a partial separation in the ink holding member.

Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.

Abstract: A liquid ejection head including an ejection device substrate having a substrate provided with an energy-generating element that generates energy for ejecting a liquid, a liquid supply member that supplies the liquid to the ejection device substrate, and a support member that is provided between and joined to the ejection device substrate and the liquid supply member. The support member has at least two liquid supply flow paths that are through-holes extending through the support member and has a projected or depressed portion at its joint surface with respect to the liquid supply member. A spacing between two adjoining liquid supply flow paths at the joint surface with respect to the liquid supply member is larger than a spacing between the adjoining two liquid supply flow paths at a joint surface of the support member with respect to the ejection device substrate.

Abstract: A liquid ejection head includes a recording element substrate having a member with a liquid ejection orifice, and a substrate having an energy-generating element for ejecting the liquid; a wiring substrate including wirings connected to terminals that are formed along an end portion side of a surface of the substrate where the element is formed and are electrically connected to the element; and a support member including a support supporting the recording element substrate through adhesive, a groove formed along the support and a wiring support supporting the wiring substrate. A sealing material is applied to a connection portion between the terminals and wirings and is applied to a bottom surface of the groove formed on an end portion side of the surface where no terminal is formed. A part of a side of the substrate corresponding to the end portion side is exposed without being covered with the sealing material.

Abstract: A process for producing a liquid ejection head including a recording element substrate, an electrical wiring substrate provided with plural lead terminals, a support member provided with a concavity and a joining surface, and a sealant control wall arranged between a side surface of the recording element substrate and a side surface of the support member, the process including preparing a liquid ejection head in which the concavity and recording element substrate are mutually fixed, the joining surface and electrical wiring substrate are mutually fixed, and the lead terminals and connection terminal are mutually connected, and filling the sealant between the side surface of the recording element substrate and the side surface of the sealant control wall on the side of the recording element substrate followed by filling the sealant between a side surface of the sealant control wall on the side of the lead terminals and the lead terminals.

Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.

Abstract: A liquid ejection head including an ejection device substrate having a substrate provided with an energy-generating element that generates energy for ejecting a liquid, a liquid supply member that supplies the liquid to the ejection device substrate, and a support member that is provided between and joined to the ejection device substrate and the liquid supply member. The support member has at least two liquid supply flow paths that are through-holes extending through the support member and has a projected or depressed portion at its joint surface with respect to the liquid supply member. A spacing between two adjoining liquid supply flow paths at the joint surface with respect to the liquid supply member is larger than a spacing between the adjoining two liquid supply flow paths at a joint surface of the support member with respect to the ejection device substrate.

Abstract: Liquid ejection head including a recording element substrate including a member having a liquid ejection orifice, and a substrate having an energy-generating element for ejecting the liquid; an wiring substrate including wirings connected to terminals that are formed along an end portion side of a surface of the substrate where the element is formed and are electrically connected to the element; and a support member including a support supporting the recording element substrate through adhesive, a groove formed around the support and an wiring support supporting the wiring substrate. A sealing material is applied to a connection portion between the terminals and wirings and applied to a bottom surface of the groove formed on an end portion side of the surface where no terminal is formed. A part of a side of the substrate corresponding to the end portion side is exposed without being covered with the sealing material.

Abstract: The invention provides, between a discharge element substrate and a supply member, a support member containing a mixture that contains: a material having an affinity for a material forming the supply member; and another material.

Abstract: An object of the present invention is to provide a system for recovery of electrodeposition paint wherein the loss of the electrodeposition paint is not increased, even if the number of stages of a multistage recovery and washing process with a membrane filtration filtrate is reduced in electrodeposition painting. The system for recovery of electrodeposition paint of the present invention, in which a membrane filtration filtrate of electrodeposition bath liquid is supplied to a final stage washing tank of the multistage recovery and washing process with a membrane filtration filtrate, is characterized in that a filtrate obtained by membrane filtration of the final stage washing tank liquid is supplied to the final stage washing tank and concentrated liquid is supplied to the electrodeposition bath and/or a washing tank at other than the final stage.