Patents by Inventor Hiroshi Konuma
Hiroshi Konuma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050030703Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: ApplicationFiled: September 14, 2004Publication date: February 10, 2005Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Publication number: 20040212951Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention can be made compact and can be endowed with high-capacitance and low-impedance and is excellent in external force-relaxing properties, productivity, heat resistance and moisture resistance, etc.Type: ApplicationFiled: May 18, 2004Publication date: October 28, 2004Applicant: SHOWA DENKO K.K.Inventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
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Patent number: 6807049Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: GrantFiled: September 26, 2001Date of Patent: October 19, 2004Assignee: Showa Denko K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideki Ohata, Yoshiaki Ikenoue
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Patent number: 6790384Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: GrantFiled: September 25, 2001Date of Patent: September 14, 2004Assignee: Showa Denko K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Patent number: 6783703Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention can be made compact and can be endowed with high-capacitance and low-impedance and is excellent in external force-relaxing properties, productivity, heat resistance and moisture resistance, etc.Type: GrantFiled: January 24, 2002Date of Patent: August 31, 2004Assignee: Showa Denko Kabushiki KaishaInventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
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Publication number: 20040149961Abstract: A formed substrate, wherein the surface of the valve-acting metal having a dielectric film is at least partially covered with an oxide comprising Si, valve-acting metal element and oxygen, preferably, wherein the content of Si in the formed foil having an aluminum oxide dielectric film decreases continuously from the surface of the dielectric film toward the inner part in some regions in the aluminum dielectric film thickness; a method for producing the formed substrate; and a solid electrolytic capacitor comprising a solid electrolyte on the formed substrate. A solid electrolytic capacitor manufactured by using a formed substrate according to the present invention, improved in adhesion to an electrically conducting polymer (solid electrolyte) with its area coverage contacting the polymer being sufficiently large, is increased in the electrostatic capacitance among individual capacitors and improved in the LC yield as compared with capacitors otherwise manufactured.Type: ApplicationFiled: November 26, 2003Publication date: August 5, 2004Inventors: Hiroshi Konuma, Katsuhiko Yamazaki, Takenori Umikawa, Masakazu Yagi
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Publication number: 20040023442Abstract: A method for producing a solid electrolytic capacitor, involving a step of loading a metal oxide on at least a part of the surface in the anode part of a capacitor element comprising a valve-acting metal substrate having there on a solid electrolyte, the valve-acting metal substrate having a dielectric film obtained by the electrochemical forming, and a solid electrolytic capacitor obtained by stacking two or more single plate capacitor elements having a metal oxide on at least a part of the surface in the anode part of a capacitor element comprising a valve-acting metal substrate having thereon a solid electrolyte, the valve-acting metal substrate having a dielectric film obtained by the electrochemical forming.Type: ApplicationFiled: February 6, 2003Publication date: February 5, 2004Inventors: Hiroshi Konuma, Eiji Komazawa, Katsuhiko Yamazaki
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Publication number: 20030210632Abstract: An optical disk apparatus which records/reproduces data on/from a plurality of types of optical disks. The optical disk apparatus has a plurality of laser diodes. Two laser light rays emanating from two laser diodes are coupled together by means of a coupling prism. The thus-coupled laser light is radiated onto an optical disk. A photodetector is disposed in close proximity to the coupling prism. The coupling prism guides, to the photodetector, a laser light component of at least one laser light ray of the two laser light to be coupled together, the component having not been radiated onto the optical disk on an optical path. Laser light which is not radiated onto the optical disk on the optical path includes diffracted light other than a main beam emanating from the laser diode or laser beam which has not been subjected to coupling at the coupling surface of the coupling prism.Type: ApplicationFiled: May 5, 2003Publication date: November 13, 2003Applicant: TEAC CorporationInventors: Kenji Shimozawa, Hiroshi Konuma, Hiroyuki Shindo, Masanori Tei, Takahiro Yamamoto
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Patent number: 6466421Abstract: Disclosed are a solid electrolytic capacitor comprising a valve-acting metal, an oxide dielectric layer formed on a surface of the valve-acting metal and a solid electrolyte layer provided on the dielectric film layer, in which the electrically conducting polymer composition layer contains as a dopant at least one anion selected from (1) an alkoxy-substituted naphthalene monosulfonate anion, (2) a heterocyclic sulfonate anion, and (3) an anion of an aliphatic polycyclic compound or a combination thereof with another anion having a dopant ability and a method for producing such a solid electrolytic capacitor. The solid electrolytic capacitor of the invention is excellent in voltage resistance, high frequency property, tan &dgr;, leakage current, heat resistance (reflow property), etc.Type: GrantFiled: January 19, 2000Date of Patent: October 15, 2002Assignee: Showa Denko K.K.Inventors: Ryuji Monden, Atsushi Sakai, Toru Sawaguchi, Hideki Ohata, Koro Shirane, Hiroshi Konuma, Yuji Furuta, Katsuhiko Yamazaki, Yoshiaki Ikenoue
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Publication number: 20020105777Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor.Type: ApplicationFiled: January 24, 2002Publication date: August 8, 2002Applicant: SHOWA DENKO K.K.Inventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
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Patent number: 6381121Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor.Type: GrantFiled: May 24, 2000Date of Patent: April 30, 2002Assignee: Showa Denko Kabushiki KaishaInventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
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Publication number: 20020039274Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: ApplicationFiled: September 26, 2001Publication date: April 4, 2002Applicant: SHOWA DENKO K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Publication number: 20020034060Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: ApplicationFiled: September 25, 2001Publication date: March 21, 2002Applicant: SHOWA DENKO K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideki Ohata, Yoshiaki Ikenoue
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Patent number: 6351370Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion having a sulfo anion group and a quinone structure and other anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: GrantFiled: January 20, 1999Date of Patent: February 26, 2002Assignee: Showa Denko K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Patent number: 6344966Abstract: Disclosed are a solid electrolytic capacitor comprising a valve-acting metal, an oxide dielectric layer formed on a surface of the valve-acting metal and a solid electrolyte layer provided on the dielectric film layer, in which the electrically conducting polymer composition layer contains as a dopant at least one anion selected from (1) an alkoxy-substituted naphthalene monosulfonate anion, (2) a heterocyclic sulfonate anion, and (3) an anion of an aliphatic polycyclic compound or a combination thereof with another anion having a dopant ability and a method for producing such a solid electrolytic capacitor. The solid electrolytic capacitor of the invention is excellent in voltage resistance, high frequency property, tan &dgr;, leakage current, heat resistance (reflow property), etc.Type: GrantFiled: August 6, 1999Date of Patent: February 5, 2002Assignee: Showa Denko K.K.Inventors: Ryuji Monden, Atsushi Sakai, Toru Sawaguchi, Hideki Ohata, Koro Shirane, Hiroshi Konuma, Yuji Furuta, Katsuhiko Yamazaki, Yoshiaki Ikenoue
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Patent number: 6243256Abstract: The present invention is an aluminum electrode foil used in a solid electrolytic capacitor, and provides an electrode foil for a solid electrolytic capacitor, a manufacturing method of this electrode foil, and a solid electrolytic capacitor using this electrode foil having an improved voltage resistance and heat resistance at the cut-end part without causing a reduction in the effective area of the electrode foil. According to the manufacturing method of the electrode foil for the solid electrolytic capacitor according to the present invention, a porous film 11 having a thickness within the range of from about 5 to about 100 times the thickness of the barrier film 3 is formed on the surface of an electrode foil 10, on the cut-end part 5 of this electrode foil 10. In addition, the present invention provides an electrode foil manufactured according to the above described manufacturing method and a solid electrolytic capacitor using this electrode foil.Type: GrantFiled: November 4, 1999Date of Patent: June 5, 2001Assignee: Showa Denko K.K.Inventors: Yuji Furuta, Katsuhiko Yamazaki, Atsushi Sakai, Hiroshi Konuma
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Patent number: 5264911Abstract: A laser power measuring jig is adapted for use in measuring a laser power of a laser beam which is emitted from an optical head of an optical disk unit which records and/or reproduces information on and/or from a medium. The laser power measuring jig supplies power information related to the laser power of the laser beam to a power meter which measures the laser power. The laser power measuring jig includes a main jig body which has a size and a shape which are approximately the same as those of the medium, and this main jig body is loaded into the optical disk unit. The laser power measuring jig also includes a mechanism for outputting the power information outside the optical disk unit and supplying the laser power information to the power meter when the main jig body is loaded into the optical disk unit.Type: GrantFiled: December 19, 1991Date of Patent: November 23, 1993Assignees: Mitsubishi Electric Corporation, Teac Corp.Inventors: Kazuhiko Nakane, Masayoshi Shimamoto, Yoshihiro Kiyose, Keiji Nakatsu, Isao Watanabe, Masami Horita, Kenichi Sato, Kenji Shimozawa, Hiroshi Konuma, Masaharu Yoshimura
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Patent number: 5051325Abstract: A secondary battery comprised of a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a sodium-cobalt oxide as the main component, the negative electrode is composed of a composite body comprising a sodium alloy such as a sodium/lead or sodium/tin alloy, a carbon material and a binder, and the non-aqueous electrolyte is composed of a sodium salt and an ether compound. The positive electrode and negative electrode is prepared by a process wherein a binder is swollen with or dissolved in an organic solvent, the swollen or dissolved binder is mixed with a carbon material, and the mixture is then mixed with a sodium alloy or a sodium-cobalt oxide directly or after removal of the organic solvent.Type: GrantFiled: November 21, 1988Date of Patent: September 24, 1991Assignees: Showa Denko K.K., Hitachi Ltd.Inventors: Toshikazu Shishikura, Masataka Takeuchi, Yoshihiko Murakoshi, Hiroshi Konuma, Mutsumi Kameyama
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Patent number: 4740436Abstract: Disclosed is a non-aqueous secondary battery having a positive electrode composed of a polymer of aniline or an aniline derivative and a negative electrode composed of (i) and alkali metal, (ii) an alkali metal alloy, (iii) an electroconductive polymer or (iv) an alkali metal or alkali metal alloy/electroconductive polymer composite, wherein the polymer of aniline or an aniline derivative is formed by converting a doped polymer obtained by oxidative polymerization to an undoped state.Type: GrantFiled: July 3, 1986Date of Patent: April 26, 1988Assignees: Showa Denko Kabushiki Kaisha, Hitachi, Ltd.Inventors: Yukio Kobayashi, Toshikazu Shishikura, Hiroshi Konuma, Toshiyuki Sakai, Hidenori Nakamura, Masataka Takeuchi
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Patent number: 4544615Abstract: A battery having electrodes, at least one of which is made of a polymeric compound having conjugated double bonds in the main chain, is described. The organic solvent of an electrolytic solution in the battery is selected from nitrile compounds of the formulae (I) and (II):R--CN (I)wherein R is a C2-7 alkyl, a saturated alicyclic C3-7 hydrocarbon residue, CH.sub.3 --(CH.sub.2).sub.x --O--(CH.sub.2).sub.y or NC--CH.sub.2).sub.z (x, y and z are 0 or a positive integer of up to 5), and ##STR1## wherein R.sub.1 is --(CH.sub.2).sub.p --CN, --O--(CH.sub.2).sub.q --CN or ##STR2## in which R.sub.3 is a C1-5 alkyl and p, q and r are 0 or a positive integer of up to 5, R.sub.2 is C1-5 alkyl, C1-5 alkoxy or --CH.sub.2).sub.l --CN in which l is 0 or a positive integer of up to 3, and m is a positive integer of up to 3, and n is 0 or a positive integer of up to 3.Type: GrantFiled: May 3, 1984Date of Patent: October 1, 1985Assignees: Showa Denko Kabushiki Kaisha, Hitachi, Ltd.Inventors: Toshikazu Shishikura, Hiroshi Konuma, Hidenori Nakamura, Yukio Kobayashi