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Inventor:
Nishiyama; Toshihiko
Address:
Tokyo, JP
No. of patents:
32
Patents:












Patent Number Title Of Patent Date Issued
7057880 Secondary battery and capacitor utilizing indole compounds June 6, 2006
The present invention provides a secondary battery and a capacitor which may provide an excellent high rate and cycle characteristic as well as sufficient electromotive force and capacity. The secondary battery and a capacitor have an active material of an electrode comprising a trimer
7035084 Secondary battery and capacitor using indole polymeric compound April 25, 2006
Secondary batteries and capacitors have a high electromotive force together with a high cyclic property and are capable of fast charging and discharging, using a polymeric compound having a high stability and high reactivity in an acidic ambient, as an electrode active material. The
6899974 Secondary battery of proton conductive polymer May 31, 2005
A secondary battery of a proton conductive polymer, wherein a positive electrode 2 and a negative electrode 4 are arranged facing to each other via a separator in an electrolytic solution and only a proton in a .pi. conjugated polymer or a proton of a hydroxyl group in a hydroxyl-con
6830848 Molded electrode, method for production thereof, and secondary battery using thereof December 14, 2004
A molded electrode into one-piece is obtained by hot pressing an electrode material obtained by mixing a polymer active material, a conductivity-enhancing agent and a plasticizer, and a current collector sheet. The electrode structure permits significant freedom when designing a seco
6800395 Secondary battery of proton conductive polymer October 5, 2004
A secondary battery of a proton conductive polymer, wherein a positive electrode and a negative electrode are arranged facing to each other via a separator in an electrolyte and only a proton or a proton of a hydroxyl group in an indole trimer and a .pi. conjugated polymer, i.e., an acti
6749963 Secondary battery utilizing indole compounds June 15, 2004
The present invention provides a secondary battery and a capacitor which may provide an excellent high rate and cycle characteristic as well as sufficient electromotive force and capacity. The secondary battery and a capacitor have an active material of an electrode comprising a trimer
6686089 Battery electrode, secondary battery, and method of manufacturing same February 3, 2004
A battery electrode is obtained by coating an electrically conductive film serving as a collector with an aqueous solution of formic acid containing polypyridine, which is an active material, in dissolved form as well as carbon powder serving as a conduction aid, and drying the solution
6641759 Polymer secondary cell electrode production method November 4, 2003
Powder of a polymer active material 1 exhibiting an electro-chemical oxidation-reduction reaction is mixed with powder of a conductivity assisting agent 2 to obtain a mixture. The mixture is molded by a thermal press into a unitary block. Thus, a cell electrode having a large film th
6569571 Electrode, secondary battery and method of producing the same May 27, 2003
A secondary battery comprises a pair of collectors made of a valve action metal, a pair of electrodes comprising a sulfuric acid aqueous solution, a separator and an outer can. Each collector is covered with an oxide film of a thickness of 1.7-10 nm. The oxide film is formed in a range o
6515848 Solid electrolytic capacitors and method for manufacturing the same February 4, 2003
The present invention relates to solid electrolytic capacitors with low ESRs in the high frequency range and methods for manufacturing the same. The solid electrolytic capacitor induce a porous anode body made of a valve action metal and on the surface of which body a dielectric oxide
6509116 Secondary battery and capacitor using indole polymeric compound January 21, 2003
Secondary batteries and capacitors have a high electromotive force together with a high cyclic property and are capable of fast charging and discharging, using a polymeric compound having a high stability and high reactivity in an acidic ambient, as an electrode active material. The
6464738 Fabrication method of solid electrolytic capacitor October 15, 2002
On the porous surface of valve metal, an anodically-oxide film of the valve metal is formed and, after that, a conducting polymer layer is formed on the oxide film. Subsequently, the conducting polymer layer is dried and, after that, the anodically-oxide film of the valve metal is reform
6428928 Battery and capacitor using quinoxaline resin August 6, 2002
The present invention provides an electrode containing a quinoxaline resin and an electrolyte which includes at least one of sulfuric acid ions and sulfonic acid ions, or the electrolyte which includes cations having ion radius of not more than 3 angstroms.
6413675 Multi layer electrolyte and cell using the same July 2, 2002
A multi layer electrolyte and a secondary cell using the multi layer electrolyte. The multi layer electrolyte comprises a solid electrolyte and other electrolyte such as gel electrolyte and/or electrolytic solution layer laminated on the solid electrolyte. The secondary cell using the
6320278 Power supply circuit November 20, 2001
A power supply device of the present invention includes an electric double layer capacitor connected to, e.g., an HDD (Hard Disk Drive), CD-ROM (Compact Disk Read Only Memory) drive, floppy disk drive or similar motor-driven equipment, and another electric double layer capacitor conn
6300015 Proton conductive polymer battery and method of forming the same October 9, 2001
The present invention provides a positive electrode active material doped with a dopant comprising an anion having the same or similar molecular structure to a polymer matrix of at least one of a solid electrolyte and a gel solid electrolyte.
6277518 Electrode materials for use in batteries, and electrodes and batteries using same August 21, 2001
A polymer composed of structural units having a fused ring structure derived from a nitrogen-containing cyclic compound and a quinone compound as represented by the following formula is used as an electrode material for use in batteries. This makes it possible to provide batteries having
6274268 Polymer secondary battery and method of making same August 14, 2001
A polymer secondary battery uses, for at least one of the active material of positive electrode and the active material of negative electrode, a polymer-carbon composite material including powdered carbon having its surfaces coated with an organic compound polymer capable of adsorbing an
6254761 Method of preparing a conductive polymer for electrode and method of forming an electrode July 3, 2001
A method of producing a conductive polymer comprises the following steps of depositing a solid-state organic compound and contacting a collector with an electrolytic solution thereby to cause an electrolytic polymerization of said organic compound.
6248474 Composite electrode for secondary battery and production method thereof June 19, 2001
An electrode for a secondary or rechargeable battery using a conducting polymer as an active material is provided, which realizes a large capacity, a good cycling property, and a high power density. This electrode is comprised of an active material layer having an active material mad
6243255 Process for preparing a Nb capacitor June 5, 2001
Process for preparing a solid electrolytic Nb capacitor having dielectric loss (tan .delta.) whose abnormal frequency characteristics are restrained. The process comprises forming a laminating film or laminating films on a first laminate comprising Nb anode body, Nb-oxide layer and s
5986046 Oxzidant solution for synthesizing heat-resistant electroconductive polymer and method for prepa November 16, 1999
An oxidant solution for synthesizing a heat-resistant electroconductive polymer, composed of a solution of a non-protonic organic solvent and an oxidant of the organic compound iron salt expressed by the following formula:where X is COOH or OHM is organic compoundY is strong electrolytic
5951840 Heat resistant conducting polymer, solid electrolytic capacitor using the same and method for fa September 14, 1999
The solid electrolytic capacitor comprises a sealed capacitor element having, as a solid electrolyte layer, a heat resistant conductive layer formed on a dielectric oxide film. The heat resistant conducting polymer layer contains water, and the capacitor element inside is substantially
5752986 Method of manufacturing a solid electrolytic capacitor May 19, 1998
A solid electrolytic capacitor free of short circuits which may be caused by the creeping of a solid electrolyte comprising a conducting polymer, and having high volume efficiency per volume. The solid electrolytic capacitor is constructed by successively forming an oxide film, a solid
5694287 Solid electrolytic capacitor with conductive polymer as solid electrolyte and method of manufact December 2, 1997
The solid electrolytic capacitor disclosed has a conducting polymer as a solid electrolyte and an antioxidant contained substantially only in a layer disposed in the neighborhood of a surface of the conducting polymer. The antioxidant serves to block the progress of oxidation of organic
5621608 Solid electrolytic capacitor having two solid electrolyte layers and method of manufacturing the April 15, 1997
In a solid electrolytic capacitor which employs a conducting polymer as the solid electrolyte, a first solid electrolytic layer (3) consisting of a sole conducting polymer is formed by chemical polymerization on an oxide film (2) formed on the surface of an anode body (1). Next, a second
5586000 Solid electrolytic capacitor and process for production thereof December 17, 1996
The present invention provides a solid electrolytic capacitor comprising a metal having a dielectric oxide film formed thereon, a conductive polymer compound layer formed on said dielectric oxide film, a conductive paste layer formed on said conductive polymer compound layer, a molded re
5473503 Solid electrolytic capacitor and method for manufacturing the same December 5, 1995
A solid electrolytic capacitor using a conductive polymeric compound as a solid electrolyte is disclosed, wherein a powder is dispersed in the conductive polymer to provide unevenness on the surface of the solid electrolyte, thereby increasing the surface area, whereby a mechanical a
5455736 Tantalum solid-state electrolytic capacitor and fabrication process therefor October 3, 1995
A solid-state electrolytic capacitor reduces the possibility of failure due to increasing of a leakage current during application of voltage for a long period and thus improves reliability. The solid-state electrolytic capacitor has a conductive high polymeric compound deposited on a
5454147 Method of manufacturing solid electrolytic capacitor October 3, 1995
The invention provides a method of manufacturing a solid electrolytic capacitor, including the steps of forming an oxide film serving as dielectric substance around a porous compact composed of valve action metal having an anode lead projecting therefrom, forming a resist layer aroun
5428500 Solid electrolytic capacitor June 27, 1995
A solid electrolytic capacitor includes an anode, a dielectric layer, a solid electrolyte layer, and a cathode electrode. The solid electrolyte layer consists of a conductive polymer compound obtained by doping a dopant in one of a copolymer and a mixture of polypyrrole or a derivative
5377073 Stacked type solid electrolytic capacitor December 27, 1994
A stacked type solid electrolytic capacitor has a plurality of single plate capacitors each constituted by a dielectric oxide film, a solid electrolytic film and a negative electrode layer sequentially laminated on a surface of a positive electrode member having a positive electrode










 
 
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