Abstract: The paper sheet processing device includes a bladed wheel 10, a paper sheet supply/transport unit 30, 100, a stacking tray 50 that holds paper sheets emitted from the bladed wheel one by one in a stacked state, and an extraction area 80. The stacking tray includes a first stacking part 51 that stacks thereon paper sheets being emitted when at a paper sheet stacking position P1, and is rotationally moved to a non-stacking position P2 when a predetermined number of paper sheets are stacked thereon, and a second stacking part 61 that is moved to the paper sheet stacking position to stack paper sheets thereon when being rotated by a predetermined angle from the non-stacking position, and is rotationally moved to the non-stacking position when the predetermined number of paper sheets are stacked thereon.

Abstract: The paper sheet processing device includes a bladed wheel 10, a paper sheet supply/transport unit 30, 100, a stacking tray 50 that holds paper sheets emitted from the bladed wheel one by one in a stacked state, and an extraction area 80. The stacking tray includes a first stacking part 51 that stacks thereon paper sheets being emitted when at a paper sheet stacking position P1, and is rotationally moved to a non-stacking position P2 when a predetermined number of paper sheets are stacked thereon, and a second stacking part 61 that is moved to the paper sheet stacking position to stack paper sheets thereon when being rotated by a predetermined angle from the non-stacking position, and is rotationally moved to the non-stacking position when the predetermined number of paper sheets are stacked thereon.

Abstract: Provided is a paper sheet loading device including a paper sheet loading unit having a bottom plate and a front wall, a feed roller that comes in contact with a bottom surface of a lowermost paper sheet of a batch of paper sheets and rotates to feed the lowermost paper sheet to outside of the paper sheet loading unit, and a load adjusting member arranged so as to protrude into the paper sheet loading unit and retreat to outside of the paper sheet loading unit. At a time of protrusion of the load adjusting member, the load adjusting member presses a front side face of the batch of paper sheets by a pressing surface to displace the front side face to an innermost part, and receives a load from the batch of paper sheets by the pressing surface, thereby reducing the load applied to the feed roller from the batch of paper sheets.

Abstract: Provided is a paper sheet processing device in which a plurality of paper sheets stacked after processing can be easily taken out in a state where ends thereof are aligned, without binding the paper sheets. The paper sheet processing device includes a stacking unit 6 that stacks therein the paper sheets after being processed by a processing unit 4. The stacking unit 6 includes a stacking unit main body 7, and a storage box 9 that can be taken in and out of a box storage space 7a of the stacking unit main body 7.

Abstract: Provided is a paper sheet processing device in which a plurality of paper sheets stacked after processing can be easily taken out in a state where ends thereof are aligned, without binding the paper sheets. The paper sheet processing device includes a stacking unit 6 that stacks therein the paper sheets after being processed by a processing unit 4. The stacking unit 6 includes a stacking unit main body 7, and a storage box 9 that can be taken in and out of a box storage space 7a of the stacking unit main body 7.

Abstract: Provided is a paper sheet loading device including a paper sheet loading unit having a bottom plate and a front wall, a feed roller that comes in contact with a bottom surface of a lowermost paper sheet of a batch of paper sheets and rotates to feed the lowermost paper sheet to outside of the paper sheet loading unit, and a load adjusting member arranged so as to protrude into the paper sheet loading unit and retreat to outside of the paper sheet loading unit. At a time of protrusion of the load adjusting member, the load adjusting member presses a front side face of the batch of paper sheets by a pressing surface to displace the front side face to an innermost part, and receives a load from the batch of paper sheets by the pressing surface, thereby reducing the load applied to the feed roller from the batch of paper sheets.

Abstract: It is intended to provide a medical material which enables a new method for cartilage tissue regeneration treatment based on an entirely new concept unlike a treatment method by transplantation of autologous cartilage tissue, a cartilage alternative or undifferentiated cells. The invention provides a bone filler for cartilage tissue regeneration comprising hydrogel having an interpenetrating network structure formed by two or more crosslinked network polymers or a semi-interpenetrating network structure formed by a crosslinked network polymer and a linear polymer. By filling the bone filler of the invention in a hole or a groove provided in subchondral bone just under damaged cartilage tissue, regeneration of the cartilage tissue or both the cartilage tissue and the subchondral bone can be promoted.

Abstract: A cell culture scaffold containing a gel having a network structure comprised of a synthetic polymer such that cultured cells spread in a shorter time and the number of adsorbed cultured cells per unit area is larger than in the case of using a gel having a network structure comprised of polyacrylic acid, while taking advantage of synthetic polymers with low manufacturing cost, easy quality control and no risk of virus infection in cultured cell. Used as the cell culture scaffold is a gel containing a synthetic polymer obtained by polymerization or copolymerization of a monomer having a sulfonic group such as p-styrenesulfonic acid sodium salt (NaSS) and 2-acrylamide-2-methylpropane sulfonic acid sodium salt (NaAMPS).

Abstract: It is intended to provide a medical material which enables a new method for cartilage tissue regeneration treatment based on an entirely new concept unlike a treatment method by transplantation of autologous cartilage tissue, a cartilage alternative or undifferentiated cells. The invention provides a bone filler for cartilage tissue regeneration comprising hydrogel having an interpenetrating network structure formed by two or more crosslinked network polymers or a semi-interpenetrating network structure formed by a crosslinked network polymer and a linear polymer. By filling the bone filler of the invention in a hole or a groove provided in subchondral bone just under damaged cartilage tissue, regeneration of the cartilage tissue or both the cartilage tissue and the subchondral bone can be promoted.

Abstract: A hydrogel of the semi-interpenetrating network structure or interpenetrating network structure, characterized in that the hydrogel is one formed from a first monomer ingredient at least 10 mol % of which is accounted for by a charge-possessing unsaturated monomer, the molar ratio of the first monomer ingredient to the second monomer ingredient being from 1/2 to 1/100, and that the second monomer ingredient has been polymerized and crosslinked to a lower degree of crosslinking than the first monomer ingredient. The hydrogel is usable in a diaper, sanitary good, sustained-release agent, construction material, building material, communication material, soil conditioner, contact lens, ocular lens, hollow fiber, artificial cartilage, artificial organ, material for fuel cells, battery diaphragm, impact-resistant material, cushion, etc.

Abstract: An artificial meniscus, a base material of which is a hydrogel having a semi-interpenetrating network structure or an interpenetrating network structure (e.g., a linear polymer or a network structure composing the hydrogel is a polymer of an electrically charged unsaturated monomer and/or an electrically neutral unsaturated monomer or a crosslinked product thereof or/and a naturally occurring macromolecule or a crosslinked product thereof.), which can maintain moderate mechanical properties even in the case of application for an extended period of time between the joints where the severest mechanical environment is found in an organism, and which has no fear of causing osteoarthritis.

Abstract: Provided is a medical material which enables a novel treatment method for cartilage regeneration being different from a treatment method through transplantation of autologous cartilage, a cartilage alternative or undifferentiated cells. Provided is a bone-filling type agent for inducing cartilage regeneration comprising a hydrogel which contains, as a monomer unit, an acid having an acidic group and/or a salt obtained by adding a metal to an acidic group and does not contain an interpenetrating network structure or a semi-interpenetrating network structure composed of two or more polymers. The bone-filling type agent for inducing cartilage regeneration can induce natural cartilage regeneration in the body by filling it in a hole or a groove provided in subchondral bone beneath cartilage defect.

Abstract: It is intended to provide a medical material which enables a new method for cartilage tissue regeneration treatment based on an entirely new concept unlike a treatment method by transplantation of autologous cartilage tissue, a cartilage alternative or undifferentiated cells. The invention provides a bone filler for cartilage tissue regeneration comprising hydrogel having an interpenetrating network structure formed by two or more crosslinked network polymers or a semi-interpenetrating network structure formed by a crosslinked network polymer and a linear polymer. By filling the bone filler of the invention in a hole or a groove provided in subchondral bone just under damaged cartilage tissue, regeneration of the cartilage tissue or both the cartilage tissue and the subchondral bone can be promoted.

Abstract: A cell culture scaffold containing a gel having a network structure comprised of a synthetic polymer such that cultured cells spread in a shorter time and the number of adsorbed cultured cells per unit area is larger than in the case of using a gel having a network structure comprised of polyacrylic acid, while taking advantage of synthetic polymers with low manufacturing cost, easy quality control and no risk of virus infection in cultured cell. Used as the cell culture scaffold is a gel containing a synthetic polymer obtained by polymerization or copolymerization of a monomer having a sulfonic group such as p-styrenesulfonic acid sodium salt (NaSS) and 2-acrylamide-2-methylpropane sulfonic acid sodium salt (NaAMPS).

Abstract: A cell culture scaffold containing a gel having a network structure comprised of a synthetic polymer such that cultured cells spread in a shorter time and the number of adsorbed cultured cells per unit area is larger than in the case of using a gel having a network structure comprised of polyacrylic acid, while taking advantage of synthetic polymers with low manufacturing cost, easy quality control and no risk of virus infection in cultured cell. Used as the cell culture scaffold is a gel containing asynthetic polymer obtained by polymerization or copolymerization of a monomer having a sulfonic group such as p-styrenesulfonic acid sodium salt (NaSS) and 2-acrylamide-2-methylpropane sulfonic acid sodium salt (NaAMPS).

Abstract: An artificial meniscus, a base material of which is a hydrogel having a semi-interpenetrating network structure or an interpenetrating network structure (e.g., a linear polymer or a network structure composing the hydrogel is a polymer of an electrically charged unsaturated monomer and/or an electrically neutral unsaturated monomer or a crosslinked product thereof or/and a naturally occurring macromolecule or a crosslinked product thereof.), which can maintain moderate mechanical properties even in the case of application for an extended period of time between the joints where the severest mechanical environment is found in an organism, and which has no fear of causing osteoarthritis.

Abstract: A cell culture scaffold containing a gel having a network structure comprised of a synthetic polymer such that cultured cells spread in a shorter time and the number of adsorbed cultured cells per unit area is larger than in the case of using a gel having a network structure comprised of polyacrylic acid, while taking advantage of synthetic polymers with low manufacturing cost, easy quality control and no risk of virus infection in cultured cell. Used as the cell culture scaffold is a gel containing asynthetic polymer obtained by polymerization or copolymerization of a monomer having a sulfonic group such as p-styrenesulfonic acid sodium salt (NaSS) and 2-acrylamide-2-methylpropane sulfonic acid sodium salt (NaAMPS).

Abstract: A hydrogel of the semi-interpenetrating network structure or interpenetrating network structure, characterized in that the hydrogel is one formed from a first monomer ingredient at least 10 mol % of which is accounted for by a charge-possessing unsaturated monomer, the molar ratio of the first monomer ingredient to the second monomer ingredient being from ½ to {fraction (1/100)}, and that the second monomer ingredient has been polymerized and crosslinked to a lower degree of crosslinking than the first monomer ingredient. The hydrogel is usable in a diaper, sanitary good, sustained-release agent, construction material, building material, communication material, soil conditioner, contact lens, ocular lens, hollow fiber, artificial cartilage, artificial organ, material for fuel cells, battery diaphragm, impact-resistant material, cushion, etc.

Abstract: An anti-adhesion agent for marine organisms comprising a hydrogel, which exerts no influences on the ecosystem or natural environment.

Abstract: A low friction hydrogel, wherein a linear chain polymer is admixed with or graft-polymerized to a polymer gel; and a method for preparing the hydrogel. The hydrogel exhibits improved low friction property over a conventional material.