PROBLEM TO BE SOLVED: To provide a document management device imparting a reliable time stamp again before a time stamp becomes invalid.

SOLUTION: The document management device requests plurality of certification information issuing bases which have mutually different methods for generating date and time certification information for certifying date and time to issue date and time certific...

PROBLEM TO BE SOLVED: To provide a method and a system for regulating a coverage range in an intrusion detection system.

SOLUTION: The intrusion detection system includes at least two sensors 410, 420 each having an individual range of coverage, at least two predetermined settings for determining a collective coverage range of the at least two sensors, and a selectable adjustment mechanism ...

PROBLEM TO BE SOLVED: To provide a positioning control apparatus using an observer control, having a disturbance suppressing function to which the disturbance suppressing function according to the head position is added, without impairing the control characteristics of an observer.

SOLUTION: The head position control apparatus comprises the observer, having the disturbance suppressing funct...

PROBLEM TO BE SOLVED: To provide a battery improved in safety when it is crushed by external force and a short circuit member used for the same.

SOLUTION: A battery element layering a positive electrode and a negative electrode through a separator and spirally wound, is housed in a battery can. A short circuit member 30 is provided in a gap between the battery can and the battery element. T...

PROBLEM TO BE SOLVED: To provide nonaqueous electrolyte for a battery and a nonaqueous electrolyte battery provided with the same capable of providing excellent battery performance and high safety to the battery even under a high temperature environment.

SOLUTION: The nonaqueous electrolyte for the battery contains a nonaqueous solvent, which contains a cyclic phosphazene compound expressed...

PROBLEM TO BE SOLVED: To provide a lead-acid battery capable of suppressing decrease of electrolyte and corrosion of a negative electrode strap of, especially, a liquid type lead-acid battery, and having an excellent maintenance free property, and reliability of the negative electrode strap.

SOLUTION: The liquid type lead-acid battery includes latticed bodies of both electrodes using a b-Ca...

PROBLEM TO BE SOLVED: To provide nonaqueous electrolyte for a battery and a nonaqueous electrolyte battery provided with the same capable of providing excellent battery performance and high safety to the battery even under a high temperature environment.

SOLUTION: The nonaqueous electrolyte for the battery contains nonaqueous solvent, which contains a cyclic phosphazene compound expressed b...

PROBLEM TO BE SOLVED: To provide a long-life lead-acid storage battery with improved initial characteristics that achieves improved adhesion between a grid and an active material by solving the problems that a battery plate manufactured by predrying, aging, and drying has low adhesion between the grid and the active material, and consequently, it prevents to obtain sufficient initial performanc...

PROBLEM TO BE SOLVED: To provide a method for manufacturing a negative electrode for a lithium ion secondary battery that is excellent in cycle characteristics, by preventing an active material from being peeled off or falling off from a Cu foil or a Cu alloy foil being a current collector, even when charge/discharge are repeated although having a high discharge capacity.

SOLUTION: After ap...

PROBLEM TO BE SOLVED: To provide a battery having a high capacity and capable of obtaining excellent cycle characteristics.

SOLUTION: The secondary battery 1 is provided with an electrolyte 8 as well as a positive electrode 2 and a negative electrode 4. The negative electrode 4 has a negative electrode active material layer 12 containing at least one of silicon and tin on a negative electro...

PROBLEM TO BE SOLVED: To provide a manufacturing method of a flat electrochemical cell showing a stable sealing and insulation performance.

SOLUTION: This is a manufacturing method of a flat electrochemical cell 1 in which a flat electrochemical cell main body 2 is filled in a packaging material in which a base material layer 6, a metal foil layer 7 having at least a formation treatment lay...

PROBLEM TO BE SOLVED: To manufacture, with high mass-productivity, an electrode capable of preventing an internal short circuit in assembling a battery.

SOLUTION: This method of manufacturing the electrode is characterized by comprising processes of: forming long slits at certain intervals in a direction vertical to the longitudinal direction on a strip-like electrode including a strip-like...

PROBLEM TO BE SOLVED: To obtain a non-aqueous electrolytic solution secondary battery, using a negative electrode active material having at least one kind of atom selected from among a group of Si atom, Sn atom, and Pb atom, which has a high charging capacity, as well as, superior characteristics over a long period, and is especially superior in the discharge capacity maintenance rate.

SOLU...

PROBLEM TO BE SOLVED: To enable to change the color of illumination light of a keytop belonging to different areas.

SOLUTION: A key sheet 8 is provided with a plurality of pad portions 10 on a key base 6 made of a transparent resin, and keytops 2 are installed on each pad portions 10. The key base 6 is divided into a plurality of areas 41, 42, 43that envelope one ...

PROBLEM TO BE SOLVED: To obtain a nonaqueous electrolyte secondary battery having excellent storing property even at high capacity and under high temperature condition by improving the nonaqueous electrolyte secondary battery provided with a positive electrode containing positive electrode active substance, a conductive agent and a binder, a negative electrode, a separator and nonaqueous electr...

PROBLEM TO BE SOLVED: To obtain reduction effect of discharge voltage and improvement effect in the luminous efficiency of a PDP.

SOLUTION: The PDP is provided with a front-glass substrate 1 and a rear-glass substrate 5 facing each other through a discharge space S and a plurality of a row electrode pairs (X, Y) and a column electrode (D) which are arranged between the front-glass substrate...

PROBLEM TO BE SOLVED: To provide a negative electrode for non-aqueous electrolyte secondary battery capable of achieving a high input and output density and superior cycle characteristics, and to provide its manufacturing method and the non-aqueous electrolyte secondary battery.

SOLUTION: The negative electrode for non-aqueous electrolyte secondary battery has a negative electrode active ma...

PROBLEM TO BE SOLVED: To provide a lead-acid battery for suppressing decrease of liquid of a liquid type lead-acid battery, suppressing leakage of electrolyte or electrolyte water to the outside of a battery, and corrosion of a negative electrode strap, and having a maintenance free property and reliability.

SOLUTION: A liquid type lead-acid battery with a sheet covering an exhaust port of ...

PROBLEM TO BE SOLVED: To improve productivity of a lithium ion electricity storage element, and to improve reliability of a product, in a lithium ion electricity storage element having a structure composed by storing a spirally-rolled tubular electrode body in a bottomed tubular metallic negative electrode can along with a nonaqueous electrolyte.

SOLUTION: Lithium 41 for preliminarily stori...

PROBLEM TO BE SOLVED: To provide a coffee maker capable of supplying boiling water quickly from when coffee starts to be extracted and extracting tasty coffee with a simple structure.

SOLUTION: The coffee maker includes a water tank 1 and a heating part 20 for heating water to be supplied by the water tank 1, leads boiled water generated by the heating part 20 to an extractor 10 through a g...