Abstract: A ruler having two slidable parts includes a ruler body, which is formed in rectangular shaped, the ruler body having a first recess extending longitudinally on its top surface and a second recess extending longitudinally on its side surface, a hand stand having a wheel, which is coupled with the second recess of the ruler body, and a wrist stand, the wrist stand having a wrist rest portion, a support portion for supporting the wrist rest portion, a joint connecting the wrist rest portion and the support portion, and ground portions attached to the support portion, wherein the ground portions are grounded to the bottom of the first recess.

Abstract: The invention provides a method for producing a polymer electrolyte membrane including (A) a membrane formation step of forming a membrane-form product of an ionic group-containing polymer electrolyte on a support, (B) an acid treatment step of exchanging the ionic group into an acid type by bringing the membrane into contact with an inorganic acid-containing acidic liquid, (C) an acid removal step of removing a free acid in the acid-treated membrane, and (D) a drying step of drying the acid-removed membrane, wherein the steps (B) to (D) are carried out without separating the membrane from the support.

Abstract: Disclosed is a proton exchange membrane for use in fuel cells, which not only has improved proton conductivity and resistance to swelling caused by hot water but also has greater durability when used in a fuel cell, as well as a sulfonic acid group-containing segmented block copolymer constituting the proton exchange membrane, a membrane electrode assembly using the proton exchange membrane, and a fuel cell using the membrane electrode assembly. A sulfonic acid group-containing segmented block copolymer, which is a di- or multi-block copolymer including, within a molecule, at least one kind of hydrophilic segment and at least one kind of hydrophobic segment, a 0.5 g/dL solution thereof dissolved in N-methyl-2-pyrrolidone as a solvent showing a logarithmic viscosity measured at 30° C. in the range of 0.5 to 5.

Abstract: [Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton exchange membrane electrode assembly, and a fuel cell.

Abstract: A tape guiding mechanism for guiding a traveling tape is provided including a guide roller for guiding the traveling tape and a regulator which rubs against at least one edge of the traveling tape in its width direction, in which the guide roller includes a circumferential surface with which the tape is in contact, a spiral groove is formed on the circumferential surface around an axis of the guide roller, and the traveling tape shifts to one side in a width direction on the circumferential surface of the guide roller.

Abstract: The invention provides a method for producing a polymer electrolyte membrane including (A) a membrane formation step of forming a membrane-form product of an ionic group-containing polymer electrolyte on a support, (B) an acid treatment step of exchanging the ionic group into an acid type by bringing the membrane into contact with an inorganic acid-containing acidic liquid, (C) an acid removal step of removing a free acid in the acid-treated membrane, and (D) a drying step of drying the acid-removed membrane, wherein the steps (B) to (D) are carried out without separating the membrane from the support.

Abstract: A tape guiding mechanism for guiding a traveling tape is provided including a guide roller for guiding the traveling tape and a regulator which rubs against at least one edge of the traveling tape in its width direction, in which the guide roller includes a circumferential surface with which the tape is in contact, a spiral groove is formed on the circumferential surface around an axis of the guide roller, and the traveling tape shifts to one side in a width direction on the circumferential surface of the guide roller.

Abstract: A magnetic tape cartridge having an opening provided on one side wall of a cartridge case, a slide door slidably supported by a guide part disposed along the one side wall, the slide door for achieving a shutting-and-opening operation of the opening. A spring member impels the slide door to the shutting direction side, and is provided with a supported part. A spring supporting part retains the supported part. The spring member is retained by the spring supporting part through the supported part and impels the slide door to the shutting direction side.

Abstract: A magnetic tape cartridge is provided, in which the mating of the lower half and the upper half can be easily performed and which is applicable to automated assembly, when the magnetic tape cartridge having a sliding door is assembled. The rib projects from the upper section of the first guide wall in the direction of the opposite second guide wall. On the other hand, the groove, which faces the rib, is carved on the inner side surface of the sliding door. The rib engages with the groove, thereby restricting the vertical displacement of the sliding door. Also, the engagement of the rib and the groove guides the sliding door in the guide channel freely.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used for achieving the shutting-and-opening operation of said opening; a spring member for impelling said slide door to the shutting direction side, and is placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.

Abstract: A cartridge case 1 for a magnetic tape cartridge comprises a cartridge case 1 consisting of a lower half 2 and an upper half 3. The lower half 2 is provided with retaining ribs 71 each having a retaining slanted surface 71a such that a plate-like cartridge memory 7 is positioned on the retaining slanted surfaces 71a with its one side 7d lowered and is obliquely supported with respect to a bottom plate 28 of the lower half 2. The upper half 3 is provided with supporting members for supporting various non-resilient constituent parts positioned on the lower half 2 and including the cartridge memory 7. The upper half 2 is provided with a stopper rod 77 such that when the upper half 3 is assembled with the lower half 2, the stopper rod 77 reaches a cartridge memory-rising region before the supporting members contact with the non-resilient constituent parts on the lower half 2.

Abstract: A cartridge case 1 for a magnetic tape cartridge comprises a cartridge case 1 consisting of a lower half 2 and an upper half 3. The lower half 2 is provided with retaining ribs 71 each having a retaining slanted surface 71a such that a plate-like cartridge memory 7 is positioned on the retaining slanted surfaces 71a with its one side 7d lowered and is obliquely supported with respect to a bottom plate 28 of the lower half 2. The upper half 3 is provided with supporting members for supporting various non-resilient constituent parts positioned on the lower half 2 and including the cartridge memory 7. The upper half 2 is provided with a stopper rod 77 such that when the upper half 3 is assembled with the lower half 2, the stopper rod 77 reaches a cartridge memory-rising region before the supporting members contact with the non-resilient constituent parts on the lower half 2.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used for achieving the shutting-and-opening operation of said opening; a spring member for impelling said slide door to the shutting direction side, and is placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.

Abstract: An ultrasonic-welding apparatus including: a cradle, onto which two work pieces are mounted, and which can rotate around an axis vertical to the welding surface of the work pieces; a welding horn, which carries out welding using ultrasonic energy while sandwiching the two work pieces between it and the cradle; a transmission-type laser sensor which measures the fixed part of the work pieces after welding, rotating on the cradle, in the condition that the welding horn is apart from the work pieces after welding; and an optical sensor including a light-emitting part, a light-receiving part, a connecting part on which the light-emitting and light-receiving parts are mounted, and an adjusting part that rotates the connecting part around two axes.

Abstract: A magnetic tape cartridge is provided, in which the mating of the lower half and the upper half can be easily performed and which is applicable to automated assembly, when the magnetic tape cartridge having a sliding door is assembled. The rib projects from the upper section of the first guide wall in the direction of the opposite second guide wall. On the other hands the groove, which faces the rib, is carved on the inner side surface of the sliding door. The rib engages with the groove, thereby restricting the vertical displacement of the sliding door. Also, the engagement of the rib and the groove guides the sliding door in the guide channel freely.

Abstract: The object of the present invention is to provide an inspection apparatus which enables the speed-up and high efficiency of an inspection as well as the flexibility to the modification of an assembly line. The present invention provides an inspection apparatus, which is directly connected to an assembly line and employed for inspections of a work (magnetic tape cartridge) after assembly, including: an arrival platform to which the work after assembly is carried in; an inspection table on which the work is inspected; a departure platform from which the work after inspection is carried out; a robot for moving the work which has completed inspections on the inspection table to the departure platform as well as moving the work carried in to the arrival platform to the inspection table; and a fixture for fixing the work moved to the inspection table while inspecting the work, wherein a plurality of inspections are performed in parallel while the work is fixed on the inspection table.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.

Abstract: A magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used achieving the shutting-and-opening operation of said opening; spring member for impelling said slide door to the shutting direction side, and tape drawing; placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.