Abstract: In an electric storage device, lithium electrodes are disposed on respective outermost portions of an electrode laminated unit in which a positive electrode and a negative electrode are laminated alternately via positive/negative electrode separators. The lithium electrode includes lithium metal serving as a lithium ion supply source, and a lithium electrode separator (a non-woven fabric separator) constituted by a non-woven fabric that satisfies the following conditions: (a) an average fiber diameter of 0.1 ?m to 10 ?m; and (b) a thickness of 5 ?m to 500 ?m is provided. By forming the lithium electrode separator that contacts the lithium electrode including the lithium ion supply source from a non-woven fabric in this manner, a dramatic improvement can be achieved in the cycle characteristic of the electric storage device.

Abstract: An electric storage device 10 has an electrode laminate unit 12 including positive electrodes 14, negative electrodes 15 and a lithium electrode 16 provided at the outermost part of the electrode laminate unit 12. The lithium electrode 16 has a lithium-electrode current collector 26 welded to a negative-electrode current collector 22 and a lithium unit 27 sandwiched between the lithium-electrode current collector 26 and the negative electrode 15. The lithium unit 27 is composed of a lithium holding plate 27a that is in contact with the lithium-electrode current collector 26, and a lithium ion source 27b that is provided to the lithium holding plate 27a. The lithium ion source 27b is not mounted on the lithium-electrode current collector 26, but only the lithium-electrode current collector 26 is laminated and welded, whereby the damage of the lithium ion source 27b is prevented, and the manufacturing operation is simplified.

Abstract: A positive electrode sheet including a positive electrode mixture layer formed on one surface is provided at one of the outermost layers of an electrode sheet group, while a positive electrode sheet including a positive electrode mixture layer formed at one surface is provided at the other outermost layer of the electrode sheet group. A negative electrode sheet including negative electrode mixture layers formed on both surfaces is provided between the positive electrode sheets. A lithium electrode sheet including metal lithium foils formed on both surfaces is overlapped onto the electrode sheet group formed by stacking the three sheets. When a wound-type electric storage device is produced, the electrode sheet group is wound together with the lithium electrode sheet.

Abstract: An electric storage device 10 has a positive electrode 13, a negative electrode 14 and a separator 15 provided between the positive electrode 13 and the negative electrode 14. The negative electrode surface 14b is formed to be larger than the positive electrode surface 13b in such a manner that a positive electrode outer edge 13c and a negative electrode outer edge 14c are apart from each other by 2 mm or more. By this configuration, an ion restricting section 15b is formed at the outer peripheral portion of the separator 15. Accordingly, the movement of the lithium ions toward the negative electrode end surface 14a can be restricted, when the device is charged with a large current, whereby the deposition of metal lithium on the negative electrode end surface 14a can be prevented.

Abstract: In an electric storage device, lithium electrodes are disposed on respective outermost portions of an electrode laminated unit in which a positive electrode and a negative electrode are laminated alternately via positive/negative electrode separators. The lithium electrode includes lithium metal serving as a lithium ion supply source, and a lithium electrode separator (a non-woven fabric separator) constituted by a non-woven fabric that satisfies the following conditions: (a) an average fiber diameter of 0.1 ?m to 10 ?m; and (b) a thickness of 5 ?m to 500 ?m is provided. By forming the lithium electrode separator that contacts the lithium electrode including the lithium ion supply source from a non-woven fabric in this manner, a dramatic improvement can be achieved in the cycle characteristic of the electric storage device.

Abstract: A positive electrode sheet including a positive electrode mixture layer formed on one surface is provided at one of the outermost layers of an electrode sheet group, while a positive electrode sheet including a positive electrode mixture layer formed at one surface is provided at the other outermost layer of the electrode sheet group. A negative electrode sheet including negative electrode mixture layers formed on both surfaces is provided between the positive electrode sheets. A lithium electrode sheet including metal lithium foils formed on both surfaces is overlapped onto the electrode sheet group formed by stacking the three sheets. When a wound-type electric storage device is produced, the electrode sheet group is wound together with the lithium electrode sheet.

Abstract: A mixture layer for an electrode is formed on a punched current collector. For example, the mixture layer is made of an active material, conductive assistant, binder, and the like. The mixture layer having the structure described above is formed into a slurry, for example, and applied onto the current collector. The applied mixture layer is dried to fabricate an electrode. The thus formed electrode is used to assemble an electric storage device. Upon the assembly, lithium ions are pre-doped into a negative electrode. The pre-doping time is determined according to air permeability of the electrodes.

Abstract: An electric storage device 10 has an electrode laminate unit 12 including positive electrodes 14, negative electrodes 15 and a lithium electrode 16 provided at the outermost part of the electrode laminate unit 12. The lithium electrode 16 has a lithium-electrode current collector 26 welded to a negative-electrode current collector 22 and a lithium unit 27 sandwiched between the lithium-electrode current collector 26 and the negative electrode 15. The lithium unit 27 is composed of a lithium holding plate 27a that is in contact with the lithium-electrode current collector 26, and a lithium ion source 27b that is provided to the lithium holding plate 27a. The lithium ion source 27b is not mounted on the lithium-electrode current collector 26, but only the lithium-electrode current collector 26 is laminated and welded, whereby the damage of the lithium ion source 27b is prevented, and the manufacturing operation is simplified.

Abstract: An electric storage device 10 has a positive electrode 13, a negative electrode 14 and a separator 15 provided between the positive electrode 13 and the negative electrode 14. The negative electrode surface 14b is formed to be larger than the positive electrode surface 13b in such a manner that a positive electrode outer edge 13c and a negative electrode outer edge 14c are apart from each other by 2 mm or more. By this configuration, an ion restricting section 15b is formed at the outer peripheral portion of the separator 15. Accordingly, the movement of the lithium ions toward the negative electrode end surface 14a can be restricted, when the device is charged with a large current, whereby the deposition of metal lithium on the negative electrode end surface 14a can be prevented.

Abstract: A light emitting apparatus capable of efficiently generating high luminance white light is provided. The present invention permits white light to be generated, without using low-emission efficiency white light emitters, by forming a light emitter layer 16 using a high-light emission efficiency blue light emitter and yellow light emitter. In this case, having at least a part of the blue light emitter particles 17 and at least a part of the yellow light emitter particles 18 exposed at a surface of the light emitter layer 16, respectively, allows both of such particles to be directly bombarded with electrons, thereby effecting a highly efficient electron excitation.

Abstract: A zoom lens apparatus which is superior in sound insulating and dust-proof properties and is easy to handle in transportation, storage and so forth. A lens system including a zoom lens set, a focusing lens set and an iris disposed on a single optic axis, a zoom lens driving section composed of a motor, a ball screw, a lens holding member, a nut member and so forth for driving the zoom lens, a focusing lens driving section composed of a guide rod, a lens holding member, a movable coil, an outer yoke, magnets and so forth for driving the focusing lens, and an iris motor for opening and closing the iris are accommodated in the housing having a substantially rectangular outer profile.

Abstract: A lens mirror cylinder having first and second movable lens structures, constructed by assembling in a mirror cylinder a plurality of magnetic circuit means arranged on the outer periphery side of the second movable lens structure, guided so that it can move in the light axis direction of the lens, so as to face each other across the light axis, a first lens driving means for driving the first movable lens structure arranged at a position on the outer periphery side of the second movable lens structure in which the magnetic circuits are not arranged, and a lens diaphragm unit. By this construction, the space of the lens mirror cylinder can be effectively utilized, and a reduction of size of the lens mirror cylinder and the camera using the lens mirror cylinder is realized.

Abstract: A camera lens barrel having a first grouped lens, a movable second grouped lens for variable magnification, a third grouped lens, and a fourth grouped lens, which are respectively arranged along an optical axis, and accommodating a drive system for the first to fourth lenses. The camera lens barrel is provided with a stepping motor, a control device capable of respectively carrying out in a low speed drive mode at least micro step drive control and pulse drive control of the stepping motor, and a moving mechanism for converting rotation of the stepping motor into movement of the second grouped lens along the optical axis. The control device carries out position control of the second grouped lens according to a control quantity of the stepping motor. As the stepping motor is driven under the micro step drive control, the generation of noise and vibration can be greatly suppressed as compared with a conventional lens barrel employing a DC motor as a drive source.

Abstract: A position detecting apparatus comprising a magnet secured to a movable body (lens holder) which is movable along a shaft body when the shaft body is inserted, the magnet having polarity which is alternately magnetized at a predetermined interval, and a magneto-resistance effect element which is positioned and fixed so as to be confronted to the magnet at a predetermined gap interval by an MR holder with the shaft body being used as a securing position reference, and the magneto-resistance effect element serving to obtain a position detection signal for the movable body through variation of a resistance value thereof which is caused by magnetic field of the magnet through movement of the movable body.

Abstract: A zoom lens apparatus which is superior in sound insulating and dust-proof properties and is easy to handle in transportation, storage and so forth. A lens system including a zoom lens set, a focusing lens set and an iris disposed on a single optic axis, a zoom lens driving section composed of a motor, a ball screw, a lens holding member, a nut member and so forth for driving the zoom lens, a focusing lens driving section composed of a guide rod, a lens holding member, a movable coil, an outer yoke, magnets and so forth for driving the focusing lens, and an iris motor for opening and closing the iris are accommodated in the housing having a substantially rectangular outer profile.

Abstract: A lens barrel of a camera includes a driving power source, a plurality of lenses mounted in the barrel, and a plurality of reference shafts extending parallel to an optical axis. At least one of the reference shafts is provided with a threaded portion and used as a rotating shaft of the driving power source. A recess and a protrusion are also provided for preventing deflection of a body of the driving power source, so that the lens moves to and fro along the threaded portion upon activation of the driving power source.

Abstract: A zoom lens operating mechanism comprises a stationary cylinder, an operating ring rotatably mounted on the stationary cylinder, a cam cylinder rotatably mounted within the stationary cylinder and coupled to the operating ring for rotation therewith, at least one lens group coupled to the cam cylinder so as to be movable within a zoom range as the operating ring is rotated within a first angular range and within a close-up range as the operating ring is rotated within a second angular range, a guide arrangement formed in the stationary cylinder, and an operating member mounted on the operating ring and cooperating with the guide arrangement to define the first and second angular ranges.

Abstract: An improved process for the production of a low density formed product of an activated alumina having a large macro-pore volume and an excellent abrasion resistance, which comprises mixing the starting solid material selected from an alumina powder being able to be re-hydrated and a mixture of the alumina and other solid material with water, said starting solid material having an average particle size of 1 micron to 35 micron and a quarter deviation of particle distribution of not more than about 1.5, forming the mixture of a solid material and water into various shapes, re-hydrating the formed product by keeping it under wetted atmosphere or in water, and calcining the resulting re-hydrated product.

Abstract: A hollow catalyst carrier and hollow catalyst made of a transition-alumina (e.g. .gamma.-alumina) which comprises a calcined product having a pipe-like or multi-cell structure and having a very large void ratio (i.e. not less than 3%), a very large specific surface area (i.e. not less than 5 m.sup.2 /g), a bulk density of 0.8 to 1.8 g/cm.sup.3, a compressive strength in the extrusion direction of not less than 20 kg/cm.sup.2 and at least one hole in the extrusion direction, and a process for the production thereof by subjecting a powder containing a rehydratable alumina to an extrusion molding, rehydrating the molded product and followed by calcining. The hollow catalyst carrier and hollow catalyst have excellent properties for carrying the catalytically active components thereon and have an excellent mechanical strength.