Patents by Inventor Hiroshi Nitoh
Hiroshi Nitoh 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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Patent number: 7617595Abstract: The present invention relates to an apparatus for producing a comb-like capacitor element member including a guide member and a plurality of rectangular metal foil pieces bonded to the guide member, comprising an automatic feed mechanism for feeding tape-like metal foil by a constant length toward the guide member, a bonding mechanism for bonding the metal foil to the guide member, and a cutting mechanism for cutting the bonded metal foil. According to the apparatus of the present invention, a comb-like capacitor element member having a plurality of rectangular metal foil pieces bonded can be produced efficiently, by bonding the elongated tape-like metal foil without damaging it.Type: GrantFiled: May 9, 2008Date of Patent: November 17, 2009Assignee: Showa Denko K.K.Inventors: Hiroshi Nitoh, Toshihiro Okabe, Kenji Ishii, Atsushi Sakai
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Publication number: 20080216308Abstract: The present invention relates to an apparatus for producing a comb-like capacitor element member including a guide member and a plurality of rectangular metal foil pieces bonded to the guide member, comprising an automatic feed mechanism for feeding tape-like metal foil by a constant length toward the guide member, a bonding mechanism for bonding the metal foil to the guide member, and a cutting mechanism for cutting the bonded metal foil. According to the apparatus of the present invention, a comb-like capacitor element member having a plurality of rectangular metal foil pieces bonded can be produced efficiently, by bonding the elongated tape-like metal foil without damaging it.Type: ApplicationFiled: May 9, 2008Publication date: September 11, 2008Inventors: Hiroshi Nitoh, Toshihiro Okabe, Kenji Ishit, Atsushi Sakai
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Patent number: 7398593Abstract: The present invention relates to an apparatus for producing a comb-like capacitor element member including a guide member and a plurality of rectangular metal foil pieces bonded to the guide member, comprising an automatic feed mechanism for feeding tape-like foil by a constant lenght toward the guide member, a bonding mechanism for bonding the metal foil to the guide member, and a cutting mechanism for cutting the bonded metal foil. According to the apparatus of the present invention, a comb-like capacitor element member having a plurality of rectangular metal foil pieces bonded can be produced efficiently, by bonding the elongated tape-like metal foil without damaging it.Type: GrantFiled: August 31, 2001Date of Patent: July 15, 2008Assignee: Showa Denko K.K.Inventors: Hiroshi Nitoh, Toshihiro Okabe, Kenji Ishii, Atsushi Sakai
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Patent number: 7141081Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: December 20, 2005Date of Patent: November 28, 2006Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Patent number: 7046504Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: June 28, 2004Date of Patent: May 16, 2006Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Publication number: 20060098394Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: ApplicationFiled: December 20, 2005Publication date: May 11, 2006Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Patent number: 6890363Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to an apparatus therefor. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: May 24, 2000Date of Patent: May 10, 2005Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Publication number: 20040233615Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: ApplicationFiled: June 28, 2004Publication date: November 25, 2004Applicant: SHOWA DENKO K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Patent number: 6706078Abstract: A solid electrolytic capacitor is obtained by mounting a plurality of single plate capacitor elements within a chip by employing a stacking structure such as parallel stacking, opposing stacking, each layer-opposing stacking or closest stacking. As a result, a compact and high-capacitance element can be easily manufactured. The single plate capacitor element is preferably an element having an unfolded fan-like shape.Type: GrantFiled: March 13, 2002Date of Patent: March 16, 2004Assignee: Showa Denko Kabushiki KaishaInventors: Hiroshi Nitoh, Atsushi Sakai, Wataru Minamida, Yuji Furuta
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Patent number: 6661645Abstract: A solid electrolytic capacitor comprising a capacitor element comprising a valve-acting metal substrate having on the surface thereof a dielectric film and a solid electrolytic layer provided on the dielectric film, the capacitor element provided with lead wires (lead frames), in which the bonding structure between the capacitor element and the lead frames is improved. The solid electrolytic capacitor has high strength at the bonded portion between the capacitor element and the lead frames and has excellent heat resistance and is highly reliable. Also, a method for manufacturing such a solid electrolytic capacitor is disclosed.Type: GrantFiled: November 27, 2001Date of Patent: December 9, 2003Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Takashi Ichimura, Hiroshi Nitoh, Naoki Kawamura
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Publication number: 20030156376Abstract: The present invention relates to an apparatus for producing a comb-like capacitor element member including a guide member and a plurality of rectangular metal foil pieces bonded to the guide member, comprising an automatic feed mechanism for feeding tape-like foil by a constant lenght toward the guide member, a bonding mechanism for bonding the metal foil to the guide member, and a cutting mechanism for cutting the bonded metal foil. According to the apparatus of the present invention, a comb-like capacitor element member having a plurality of rectangular metal foil pieces bonded can be produced efficiently, by bonding the elongated tape-like metal foil without damaging it.Type: ApplicationFiled: March 3, 2003Publication date: August 21, 2003Inventors: Hiroshi Nitoh, Toshihiro Okabe, Kenji Ishii, Atsushi Sakai
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Publication number: 20020141141Abstract: A solid electrolytic capacitor is obtained by mounting a plurality of single plate capacitor elements within a chip by employing a stacking structure such as parallel stacking, opposing stacking, each layer-opposing stacking or closest stacking. As a result, a compact and high-capacitance element can be easily manufactured. The single plate capacitor element is preferably an element having an unfolded fan-like shape.Type: ApplicationFiled: March 13, 2002Publication date: October 3, 2002Applicant: SHOWA DENKO K.K.Inventors: Hiroshi Nitoh, Atsushi Sakai, Wataru Minamida, Yuji Furuta
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Patent number: 6421227Abstract: A solid electrolytic capacitor is obtained by mounting a plurality of single plate capacitor elements within a chip by employing a stacking structure such as parallel stacking, opposing stacking, each layer-opposing stacking or closest stacking. As a result, a compact and high-capacitance element can be easily manufactured. The single plate capacitor element is preferably an element having an unfolded fan-like shape.Type: GrantFiled: December 11, 2000Date of Patent: July 16, 2002Assignee: Showa Denko K.K.Inventors: Hiroshi Nitoh, Atsushi Sakai, Wataru Minamida, Yuji Furuta
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Publication number: 20020015277Abstract: A solid electrolytic capacitor is obtained by mounting a plurality of single plate capacitor elements within a chip by employing a stacking structure such as parallel stacking, opposing stacking, each layer-opposing stacking or closest stacking. As a result, a compact and high-capacitance element can be easily manufactured. The single plate capacitor element is preferably an element having an unfolded fan-like shape.Type: ApplicationFiled: December 11, 2000Publication date: February 7, 2002Inventors: Hiroshi Nitoh, Atsushi Sakai, Wataru Minamida, Yuji Furuta
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Patent number: 6249424Abstract: The present invention provides a solid electrolytic multilayer capacitor excellent in yield and capability, and provides a monolayer capacitor element for use in the manufacture of the solid electrolytic multilayer capacitor. In the multilayer solid electrolyte capacitor of the present invention, a solid electrolytic multilayer capacitor 25 in which a plurality of monolayer capacitor elements 7 are stacked such that the anode areas 11 aligned in the same direction are stacked and bonded onto a lead frame 9 on the anode side and the cathode areas are stacked and bonded onto a lead frame 8 on the cathode side so as to have an unfolded fan shape widening toward the distal end of the cathode area from the anode area 11 side, to provide a multilayer capacitor element 19 and the periphery of the multilayer capacitor element 19 that are covered and sealed with an armoring resin 23.Type: GrantFiled: November 4, 1999Date of Patent: June 19, 2001Assignee: Showa Denko K.K.Inventors: Hiroshi Nitoh, Wataru Minamida, Atsushi Sakai, Takashi Ichimura