Abstract: A mobile terminal device with a first case including a rotation base portion having a first axis of rotation parallel to a side of the first case, a second case openable and closable relative to the first case by rotating the second case about the first axis of rotation, and a supporting portion attached to the second case, wherein the supporting portion includes a rotation portion integral therewith and rotatable relative to the rotation base portion about the first axis of rotation and covers at least a part of the rotation base portion.

Abstract: An electronic device includes an outer case having a sound hole, an acoustic unit included in the outer case in a position corresponding to a position of the sound hole, a sheet member provided between the acoustic unit and the outer case in a position corresponding to the position of the sound hole, and placed over the acoustic unit to cover an outside of an outer edge of the acoustic unit, a mounting portion circumferentially provided on an outer peripheral portion of the sheet member and mounted to the outer case, and an extension portion that extends the mounting portion toward an inner periphery thereof on a side of the sheet member facing the acoustic unit and to which the acoustic unit is mounted.

Abstract: Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength).

Abstract: Provided is a method of producing FDCA by which high-purity FDCA can be produced in high yield. 2,5-furandicarboxylic acid is produced by: bringing 5-hydroxymethylfurfural into contact with an oxidant in an organic acid solvent in the presence of bromine and a metal catalyst; and allowing 5-hydroxymethylfurfural and the oxidant to react with each other while removing water produced by the reaction.

Abstract: Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength).

Abstract: An electronic device has a cap protecting an opening disposed in a case. The cap includes a base portion covering the opening, a leg portion extended from a part of the base portion; an attachment portion having a large diameter surface that has a diameter larger than the diameter of the leg portion and includes a connecting region that connects with the leg portion at the end of the leg portion opposite to the base portion, and a protruding portion protruding from a region other than the connecting region of the large diameter surface of the attachment portion.

Abstract: A mobile terminal device includes a display module, a holder holding the display module; and a light guide plate disposed on a display side of the display module and held by the holder, the light guide plate including a transparent part and a diffusing part integrated with the transparent part into one structure, the transparent part transmitting light in an area on a display surface of the display module, the diffusing part diffusely reflecting light in an area around the display surface.

Abstract: Provided are a novel polyester resin that can be used for producing a molding product excellent in heat resistance, and a method of producing the polyester resin. The polyester resin includes: structural units represented by the following formulae (1) and (2): where: R1 represents an aromatic hydrocarbon group which may be substituted, or an aliphatic hydrocarbon group which may be substituted; and A represents the formula (3): in which the polyester resin contains the structural unit represented by the formula (2) in an amount of 3.8 mol % or more to 9.7 mol % or less in the total of the structural units represented by the formulae (1) and (2).

Abstract: A mobile terminal device with a first case including a rotation base portion having a first axis of rotation parallel to a side of the first case, a second case openable and closable relative to the first case by rotating the second case about the first axis of rotation, and a supporting portion attached to the second case, wherein the supporting portion includes a rotation portion integral therewith and rotatable relative to the rotation base portion about the first axis of rotation and covers at least a part of the rotation base portion.

Abstract: A water-resistant cover placed on an electronic device in an attachable/removable manner, and for the water-resistant cover and the circumference of a water-resistant area of the electronic device, a sealing member is provided on the whole circumference in the circumference direction of the water-resistant area on one side, and a contact plane facing the sealing member is formed on the same plane on another side, and the water-resistant cover slides and put on the electronic device in the state in which the sealing member contacts the contact plane and pressed.

Abstract: An illumination device is provided including a light emitter; and a panel. The panel includes a recess configured to accept an optically transparent sealant that is illuminated by light from the light emitter. Moreover, the panel includes a hole in the recess that is sealed by the optically transparent sealant.

Abstract: Provided is a method of producing FDCA by which high-purity FDCA can be produced in high yield. 2,5-furandicarboxylic acid is produced by: bringing 5-hydroxymethylfurfural into contact with an oxidant in an organic acid solvent in the presence of bromine and a metal catalyst; and allowing 5-hydroxymethylfurfural and the oxidant to react with each other while removing water produced by the reaction.

Abstract: An imaging device includes an imaging unit, and a panel facing the imaging unit. The panel includes a panel body that has an anti-reflection-coated surface treated with anti-reflection coating and has a portion thereof overlapping an angle of view of the imaging unit, a sheet that is provided on a portion of the anti-reflection-coated surface outside of the angle of view, and a resin layer that has a pattern and is provided on a side of the sheet near the imaging unit.

Abstract: An electronic device includes an outer case having a sound hole, an acoustic unit included in the outer case in a position corresponding to a position of the sound hole, a sheet member provided between the acoustic unit and the outer case in a position corresponding to the position of the sound hole, and placed over the acoustic unit to cover an outside of an outer edge of the acoustic unit, a mounting portion circumferentially provided on an outer peripheral portion of the sheet member and mounted to the outer case, and an extension portion that extends the mounting portion toward an inner periphery thereof on a side of the sheet member facing the acoustic unit and to which the acoustic unit is mounted.

Abstract: Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength).

Abstract: A battery housing frame includes a first side wall and a second side wall that hold a battery pack from both sides of the battery pack. The second side wall is elastic, and presses the battery pack towards the first side wall by contact pressure between one side of the battery pack housed in the battery housing.