Patents by Inventor Yoshihiro Saida

Yoshihiro Saida 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).

  • Publication number: 20100026177
    Abstract: The invention relates to a self-doping type electrically conducting polymer containing an isothianaphthene or thiophene skeleton where the polymer chains are crosslinked preferably through a sulfone bond, as represented by formula (2) or (5) below, which is imparted with water resistance and solvent resistance; a production process thereof; an electrically conducting composition film obtained by coating a composition containing the self-doping type electrically conducting polymer on a substrate and heating it; a product coated using the composition; and an electronic device containing the self-doping type electrically conducting polymer: (wherein the symbols are as described in the specification).
    Type: Application
    Filed: October 9, 2009
    Publication date: February 4, 2010
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshihiro SAIDA, Takashi Ohkubo
  • Patent number: 7638071
    Abstract: The invention relates to a self-doping type electrically conducting polymer comprising an isothianaphthene or thiophene skeleton where the polymer chains are crosslinked preferably through a sulfone bond which is imparted with water resistance and solvent resistance; a production process thereof; an electrically conducting composition film obtained by coating a composition containing the self-doping type electrically conducting polymer on a substrate and heating it; a product coated using the composition; and an electronic device containing the self-doping type electrically conducting polymer.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: December 29, 2009
    Assignee: Showa Denko K.K.
    Inventors: Yoshihiro Saida, Takashi Ohkubo
  • Publication number: 20090123771
    Abstract: The invention provides an antistatic treatment agent having an ability of preventing resist film thinning phenomenon in a chemically amplified resist, an antistatic film, a coated article and a pattern forming method using such antistatic treatment agent, in particular, the invention provides an antistatic treatment agent comprising an aqueous solvent-soluble electroconductive polymer, a diamine (divalent) or polyamine (polyvalent) aliphatic basic compound and an anionic surfactant, an antistatic film, a coated article and a pattern forming method using such antistatic treatment agent. As the aqueous solvent-soluble electroconductive polymer, a ?-conjugated electroconductive polymer having a Brönsted acid group is a sulfonic acid group is preferred and it is preferable that the amount of the diamine (divalent) or polyamine (polyvalent) aliphatic basic compound be from 0.1 to 75 mol % based on the total number of moles of the basic compounds.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 14, 2009
    Applicant: SHOWA DENKO K.K.
    Inventors: Takashi OHKUBO, Yoshihiro Saida
  • Patent number: 7495892
    Abstract: The present invention relates to an anode substrate for a solid electrolytic capacitor which is produced by cutting obliquely a metal substrate comprising a valve-acting metal layer having fine pores and a valve-acting metal layer without fine pores, and having a cut surface which is formed by elongation of the valve-acting metal layer without fine pores dragged by a cutting blade; particularly to an anode substrate for a solid electrolytic capacitor which is produced by cutting obliquely a metal substrate comprising a valve-acting metal layer having fine pores and a valve-acting metal layer without fine pores, and a layer of the elongated valve-acting metal which is generated by that the valve-acting metal layer without fine pores is elongated being dragged along with a cutting blade and covers the edge part of the valve-acting layer having fine pores meets the requirement represented by the following formula: 0?y/z?1??[Formula 1] wherein y represents the thickness of the layer of the elongated valve-actin
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: February 24, 2009
    Assignee: Showa Denko K.K.
    Inventors: Yoshihiro Saida, Yoshifumi Asai, Hideki Oohata
  • Publication number: 20080193730
    Abstract: The invention relates to an antistatic agent, which comprises a water-soluble electroconductive polymer and a biosurfactant having a hydrophilic site of a molecular weight of 200 to 10,000, excellent in property of preventing film-thinning in chemically amplified resist, and an antistatic film and a coated product obtained by using the antistatic agent.
    Type: Application
    Filed: August 5, 2005
    Publication date: August 14, 2008
    Applicant: SHOWA DENKO K.K.
    Inventors: Takashi Ohkubo, Yoshihiro Saida, Shuichi Naijo
  • Publication number: 20080049381
    Abstract: The present invention relates to a method for producing a solid electrolytic capacitor in which a solid electrolyte layer is provided by a process comprising a step of dipping a valve-acting metal having thereon a dielectric film layer in a monomer-containing solution, followed by drying (Step 1), a step of dipping the valve-acting metal in an oxidizing agent-containing solution, followed by drying (Step 2), and a step of dipping the. valve-acting metal in an oxidizing agent-free solution, followed by drying (Step 3); and to a solid electrolytic capacitor produced thereof.
    Type: Application
    Filed: November 18, 2005
    Publication date: February 28, 2008
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshihiro Saida, Hiroshi Konuma
  • Publication number: 20070252111
    Abstract: The invention provides an antistatic treatment agent having an ability of preventing resist film thinning phenomenon in a chemically amplified resist, an antistatic film, a coated article and a pattern forming method using such antistatic treatment agent, in particular, the invention provides an antistatic treatment agent comprising an aqueous solvent-soluble electroconductive polymer, a diamine (divalent) or polyamine (polyvalent) aliphatic basic compound and an anionic surfactant, an antistatic film, a coated article and a pattern forming method using such antistatic treatment agent. As the aqueous solvent-soluble electroconductive polymer, a ?-conjugated electroconductive polymer having a Brönsted acid group is a sulfonic acid group is preferred and it is preferable that the amount of the diamine (divalent) or polyamine (polyvalent) aliphatic basic compound be from 0.1 to 75 mol % based on the total number of moles of the basic compounds.
    Type: Application
    Filed: September 21, 2005
    Publication date: November 1, 2007
    Applicant: Showa Denko K.K.
    Inventors: Takashi Ohkubo, Yoshihiro Saida
  • Publication number: 20070231604
    Abstract: The present invention provides an electroconductive composition containing an aqueous solvent-soluble electroconductive polymer as represented by formula (1) which has a ?-electron conjugated system and exhibits electroconductivity in electron conducting mechanism and an aqueous solvent-soluble resin. By using the electroconductive composition of the invention, reduction in resistivity and enhancement in electroconductivity of the coating film can be achieved, and the coating film can be suitable used, for example, as an electroconductive coating film, as a coating film for a coated article and in an anode buffer layer of an organic electronic device.
    Type: Application
    Filed: May 18, 2005
    Publication date: October 4, 2007
    Inventors: Takashi Ohkubo, Yoshihiro Saida, Jun Tanaka
  • Publication number: 20070194285
    Abstract: The invention relates to a self-doping type electrically conducting polymer comprising an isothianaphthene or thiophene skeleton where the polymer chains are crosslinked preferably through a sulfone bond, as represented by formula (2) or (5) below, which is imparted with water resistance and solvent resistance; a production process thereof; an electrically conducting composition film obtained by coating a composition containing the self-doping type electrically conducting polymer on a substrate and heating it; a product coated using the composition; and an electronic device containing the self-doping type electrically conducting polymer: (wherein the symbols are as described in the specification).
    Type: Application
    Filed: March 23, 2005
    Publication date: August 23, 2007
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshihiro Saida, Takashi Ohkubo
  • Publication number: 20070129534
    Abstract: The present invention relates to a novel ?-conjugated copolymer having a high conductivity, obtained through chamically oxidative polymerization of a thiophene-based unit represented by formula (IV) and a pyrrole-based unit represented by formula (III) at a low temperature, preferably in the presence of a compound containing a counter anion, and production method therefor, and further relates to an article coated with the copolymer, a solid electrolytic capacitor using the copolymer as solid electrolyte and production method for the capacitor.
    Type: Application
    Filed: September 24, 2004
    Publication date: June 7, 2007
    Applicant: SHOWA DENKO K.K.
    Inventors: Hideki Ohata, Yoshihiro Saida, Shuichi Naijo
  • Publication number: 20070030622
    Abstract: The present invention relates to an anode substrate for a solid electrolytic capacitor which is produced by cutting obliquely a metal substrate comprising a valve-acting metal layer having fine pores and a valve-acting metal layer without fine pores, and having a cut surface which is formed by elongation of the valve-acting metal layer without fine pores dragged by a cutting blade; particularly to an anode substrate for a solid electrolytic capacitor which is produced by cutting obliquely a metal substrate comprising a valve-acting metal layer having fine pores and a valve-acting metal layer without fine pores, and a layer of the elongated valve-acting metal which is generated by that the valve-acting metal layer without fine pores is elongated being dragged along with a cutting blade and covers the edge part of the valve-acting layer having fine pores meets the requirement represented by the following formula: 0?y/z?1??[Formula 1] wherein y represents the thickness of the layer of the elongated valve-acting
    Type: Application
    Filed: April 26, 2006
    Publication date: February 8, 2007
    Inventors: Yoshihiro Saida, Yoshifumi Asai, Hideki Oohata
  • Patent number: 5783251
    Abstract: An antistatic agent comprising a water-soluble electroconductive polymer comprising at least a repeating unit having a sulfo group-containing isothianaphthenylene structure; a method for suppressing electrification of an article during the production or use of the article by forming an electroconductive film comprising the water-soluble electroconductive polymer on the article; an article of which electrification is suppressed by having an electroconductive film comprising the water-soluble conductive polymer on the article; and a method for observing or inspecting an article with suppressing electrification thereof during irradiation with charged particle beams by forming an electroconductive film comprising the water-soluble electroconductive polymer on the article. The electroconductive film retains the electrification-suppressing effect and removability stably even when subjected to a heat treatment or left to stand for a long period of time.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: July 21, 1998
    Assignee: Showa Denko K.K.
    Inventors: Hideki Tomozawa, Yoshihiro Saida, Junya Kato, Yukie Akakabe, Yoshiaki Ikenoue, Reiko Ichikawa
  • Patent number: 5688873
    Abstract: Electroconductive polymers having a chemical structure represented by, for example, the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 independently represent H, a C.sub.1 to C.sub.20 alkyl or alkoxy group, an amino group, a trihalomethyl group or a phenyl group, X represents S, O, Se, Te or NR.sub.3 R.sub.3 represents H, a C.sub.1 to C.sub.6 alkyl group or an aryl group, M represents a cation such as H.sup.+, an alkali metal ion or a quaternary ammonium ion, and m is 0.2 to 2 and a process for producing the polymer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 18, 1997
    Assignee: Showa Denko K.K.
    Inventors: Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
  • Patent number: 5648453
    Abstract: Electroconductive polymers having a chemical structure represented by, for example, the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 independently represent H, a C.sub.1 to C.sub.20 alkyl or alkoxy group, an amino group, a trihalomethyl group or a phenyl group, X represents S, O, Se, Te or NR.sub.3 R.sub.3 represents H, a C.sub.1 to C.sub.6 alkyl group or an aryl group, M represents a cation such as M.sup.+, an alkali metal ion or a quaternary ammonium ion, and m is 0.2 to 2 and a process for producing the polymer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 15, 1997
    Assignee: Showa Denko K.K.
    Inventors: Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
  • Patent number: 5637652
    Abstract: An electroconductive polymer comprising a repeating unit having a chemical structure represented by formula (I): ##STR1## or, formula (II): ##STR2## as defined herein, and a process for producing the same.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: June 10, 1997
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Junya Kato, Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
  • Patent number: 5589270
    Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 31, 1996
    Assignees: Hitachi, Ltd., Showa Denko K.K.
    Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue
  • Patent number: 5530139
    Abstract: A condensed heterocyclic compound having a structure represented by formula (I): ##STR1## wherein the substituents are as defined in the specification herein.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: June 25, 1996
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
  • Patent number: 5437893
    Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 1, 1995
    Assignees: Hitachi, Ltd, Showa Denko K. K.
    Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue
  • Patent number: 5432237
    Abstract: Disclosed is a radical polymerizable composition comprised of a polymer having a .pi.-electron conjugated structure having repeating units of a mono-substituted or di-substituted isothianaphthene structure, which is represented by the formula [Ia] and/or [Ib]: ##STR1## wherein R.sup.1 and R.sup.2 represent hydrogen, C1-C18 alkoxy group, or --O(CH.sub.2 CH.sub.2 O).sub.n CH.sub.3 [n: 1 to 4] with the proviso that the case where both R.sup.1 and R.sup.2 represent hydrogen is excluded, X is an anion, y is from 0.01 to 1, and m is from 5 to 5,000,and a radical polymerizable compound. The radical polymerizable composition has a very stable electroconductivity in air and can be molded into an optional shape.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: July 11, 1995
    Assignee: Showa Denko K.K.
    Inventors: Reiko Otsuka, Yoshiaki Ikenoue, Yoshihiro Saida, Masao Kobayashi
  • Patent number: 5256454
    Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: October 26, 1993
    Assignees: Hitachi, Ltd., Showa Denko K.K. Corporations
    Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue