Abstract: Disclosed is a stereoscopic image viewing device to be attached for stereoscopic image viewing to eyeglasses, which includes: a pair of light shutters for right and left eyes; a driver circuit for the light shutters; a power source unit for driving the light shutters; a support for supporting the light shutters; and a first binding portion for removably binding the stereoscopic image viewing device to the eyeglasses, the first binding portion being integrally formed with the support. The power source unit and the driver circuit are connected to the support by a flexible connecting member without being fixed to the light shutters.

Abstract: Disclosed is a stereoscopic image viewing device to be attached for stereoscopic image viewing to eyeglasses, which includes: a pair of light shutters for right and left eyes; a driver circuit for the light shutters; a power source unit for driving the light shutters; a bridge for supporting the light shutters at their inside edges; a binding portion for removably binding the stereoscopic image viewing device to the eyeglasses; and a support for supporting the driver circuit and the power source unit. The power source unit includes a secondary battery. The binding portion and the support are integrally formed with the bridge. The stereoscopic image viewing device has a center of gravity positioned in the bridge.

Abstract: Disclosed is an optical device which includes: an optical component configured to be electrically actuated such that a light transmission state is variable; a driver circuit for the optical component; a power source unit for driving the optical component; a rim for supporting the optical component; a temple having front and rear ends and connected at the front end to the rim; and an earpiece formed at the rear end of the temple. The power source unit includes a secondary battery, a power switch, a power switch control portion, and a use-status sensing portion for sensing the status of use by a user of the optical device. The power switch control portion performs control to turn off the power switch when the use-status sensing portion does not sense any use by the user of the optical device.

Abstract: Disclosed is an optical device which includes: optical components configured to be electrically actuated such that light transmission states are variable; a driver circuit for the optical components; a power source unit for driving the optical components; rims for supporting the optical components; temples having front and rear ends and connected at the front ends to the rims; and earpieces formed at the rear ends of the temples. The power source unit includes a secondary battery, and a charge/discharge circuit for controlling charge and discharge of the secondary battery. The secondary battery is provided near the rear end of the temple or in the earpiece.

Abstract: A scrap floating prevention mechanism comprises: a die holder formed with a first communication pipe which sends compressed fluid; a mounting table formed with a second communication pipe which comes into communication with the first communication pipe and which sends compressed fluid to the first communication pipe, the die holder being placed on and fixed to the mounting table; and a fluid injecting member which is formed with a plurality of inclined injecting pipes for injecting compressed fluid from the first communication pipe and which is provided below the die.

Abstract: An alkaline secondary battery including: a hollow cylindrical positive electrode; a negative electrode containing zinc as an active material; a separator arranged between the positive electrode and the negative electrode; an alkaline electrolytic solution; and a battery case containing the positive electrode, the negative electrode, the separator, and the alkaline electrolytic solution, wherein the positive electrode has a porosity of 34% or higher, and the separator is a hydrophilized microporous polyolefin film.

Abstract: Reducing an initial voltage degrades intermediate-load discharge performance. In a lithium primary battery containing iron disulfide as a positive electrode active material, a solvent of a nonaqueous electrolyte contains DIOX and DME as main components, and further contains THF. Moreover, the content of THF is 20 vol. % or lower.

Abstract: A punch press includes plural dies and plural punches, and punches a work by a punch and a die that are set at a work position. The punch press includes a lifter for lifting the die to be set at the work position up to a path line of the work, a die-support member movably provided on a die-side of the lifter, and a die supporter provided on the die-support member for supporting the die set at the work position in a state where the die has been selectively lifted up to the path line by the lifter. According to the punch press, contacts between a work and dies while conveying the work can be prevented.

Abstract: A zinc-alkaline battery includes a negative electrode, a positive electrode, a separator, and an electrolyte. The negative electrode contains a zinc alloy powder including 20 to 50 wt % of a micropowder with a particle size of 75 ?m or less. In a constant resistance discharge, a time period for the negative electrode potential to rise is shorter than a time period for the positive electrode potential to fall.

Abstract: A sifter comprising: a receiver having a supply chamber; a sieve assembly having a sieving chamber coupled to the supply chamber; a rotor having a rotating shaft laterally arranged to pass through the supply chamber and the sieving chamber; a drum having a circular cross-section and having a larger diameter than the diameter of the rotating shaft, the drum being extended in at least space of the sieving chamber and arranged coaxially with the sieve; a cylindrical sieve located inside the sieving chamber and arranged coaxially with the rotating shaft; a stirring rotor located in an inner area of the sieving chamber inside the sieve comprising a rotating blade attached to the rotating shaft; an extraction member; and an outlet for discharging powder passing through the sieve from the inner area to the outer area.

Abstract: A lithium primary battery including: a positive electrode 1 using iron disulfide as a positive electrode active material, wherein the positive electrode 1 includes a positive electrode mixture containing the positive electrode active material and a conductive agent, and a positive electrode core which is made of a porous metal member, and is filled with the positive electrode mixture, the iron disulfide has an average particle size of 20-50 ?m, the conductive agent has a specific surface area of 300 m2/g or larger, and the iron disulfide and the conductive agent in the positive electrode mixture are mixed in a mass ratio of 97:3-93:7.

Abstract: A scrap floating prevention mechanism comprises: a die holder formed with a first communication pipe which sends compressed fluid; a mounting table formed with a second communication pipe which comes into communication with the first communication pipe and which sends compressed fluid to the first communication pipe, the die holder being placed on and fixed to the mounting table; and a fluid injecting member which is formed with a plurality of inclined injecting pipes for injecting compressed fluid from the first communication pipe and which is provided below the die.

Abstract: An alkaline battery which is superior in high-rate discharge characteristics and in moderate- and low-rate discharge characteristics is provided. An alkaline battery according to the present invention includes a closed-end cylindrical battery case 8 housing a hollow cylindrical positive electrode 2, a negative electrode 3 disposed in a hollow portion of the positive electrode 2, a separator 4 sandwiched between the positive electrode 2 and the negative electrode 3, and an alkaline electrolyte. The negative electrode 3 is made of a zinc porous body made of a collection of zinc fibers. The alkaline electrolyte includes 0.05% to 0.5% by mass, both inclusive, of at least one of polyacrylate and polyacrylic acid with respect to a mass of zinc in the negative electrode 3.

Abstract: A lithium primary battery 10 includes an electrode group in which a positive electrode 1 having iron disulfide as a positive electrode active material and a negative electrode 2 having lithium as a negative electrode active material are wound, with a separator 3 interposed between the positive electrode 1 and the negative electrode, wherein a density of the iron disulfide in a positive electrode mixture containing the positive electrode active material is in a range of 2.2-2.9 g/cm3, and the separator 3 is made of a non-woven fabric whose tensile strength is in a range of 6-30 N/mm2.

Abstract: An alkaline battery comprising a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte, wherein the positive electrode includes manganese dioxide and graphite; the cumulative pore volume of pores with diameters of 3 to 5 nm in the manganese dioxide is X (cm3/g), and the weight loss rate of the manganese dioxide when heated from 150 to 400° C. is Y (%), X and Y satisfying 0.005?X?0.011, 3.4?Y?3.9, and ?16.7X+3.58?Y?66.7X+3.17; the negative electrode includes zinc; and the alkaline electrolyte includes an aqueous potassium hydroxide solution.

Abstract: An agitator 1 has a vessel 4 provided between an upper powder/particulate material supplier 2 and a lower powder/particulate material discharger 3 to hold therein powder/particulate material to be stirred. The agitator 1 also has a stirrer 7 provided in the vessel 4 to have a stirrer rotating shaft 5 arranged in a horizontal direction and main paddles 6 fastened to the rotating shaft 5, and a multi-feeder 8 provided in the powder/particulate material discharger 3 to have both forward rotation and reverse rotation. The multi-feeder 8 has a discharger rotating shaft 81 and small-size auxiliary paddles 9 integrally rotated with the rotating shaft 81 and designed to be smaller in size than the main paddles 6.

Abstract: A negative electrode (6) of an alkaline battery is a wound porous sheet containing zinc, and includes a hollow part (6a). A main body (21) of a negative electrode current collector (20) is disposed in the hollow part (6a). A retainer (22) of the negative electrode current collector (20) is disposed between portions of the negative electrode (6) which are adjacent to each other in the radial direction of the negative electrode (6). The retainer (22) is connected to the main body (21) outside the negative electrode (6). The main body (21) and the retainer (22) of the negative electrode current collector (20) sandwich a portion of the negative electrode (6) which is present between the main body (21) and the retainer (22).

Abstract: The present invention provides an alkaline dry battery improved in pulse discharge characteristic under high load in a low temperature atmosphere. The alkaline dry battery of the present invention includes: a hollow cylindrical positive electrode 2 placed in a cylindrical battery case 8 having a closed bottom; a negative electrode 3 placed in a hollow part of the positive electrode 2; a separator 4 arranged between the positive electrode 2 and the negative electrode 3; and an alkaline electrolyte solution, wherein the negative electrode 3 includes a porous zinc body, and the porous zinc body has a specific surface area of 200 cm2/g to 1000 cm2/g, both inclusive, controlled by roughening.

Abstract: An alkaline battery is provided in which the pulse discharge characteristic under high load is improved with a stable performance for drop impact or vibration. The alkaline battery includes a hollow cylindrical positive electrode 2 placed in a cylindrical battery case 8 having a closed bottom, a negative electrode 3 placed in a hollow part of the positive electrode 2, a separator 4 arranged between the positive electrode 2 and the negative electrode 3, and an alkaline electrolyte, wherein the negative electrode 3 includes a hollow cylindrical skeleton part 11 made of a porous zinc body, and a gel part 12 which is placed in a hollow part of the skeleton part 11, and is made of zinc particles and a gelled electrolyte, and a current collector pin 6 made of metal is inserted in the gel part 12.

Abstract: The present invention provides a mercury-free alkaline dry battery in which a utilization ratio of zinc as a negative electrode active material is increased to improve a discharge characteristic, the mercury-free alkaline dry battery including: a positive electrode; a negative electrode; and a separator, wherein almond-shaped zinc particles 21 are contained as a negative electrode active material. Each of the almond-shaped zinc particles 21 has a length of 1 mm to 50 mm in a long axis direction, both inclusive, and one of ends of the almond-shaped zinc particle in the long axis direction constitutes an acute end.