Patents by Inventor Yoshiaki Ikenoue
Yoshiaki Ikenoue 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: 9583760Abstract: A negative electrode material for lithium ion batteries is obtained by a method which includes: mixing carbon particles (B) such as graphite particles, particles (A), such as Si particles, containing an element capable of occluding and releasing lithium ions, a carbon precursor such as sucrose, a carboxylic acid compound such as acetic acid, and a liquid medium such as water or isopropyl alcohol to prepare a slurry; drying and solidifying the slurry; and heat-treating the resulting solidified material to carbonize the carbon precursor. A lithium ion battery is obtained using this negative electrode material.Type: GrantFiled: November 21, 2013Date of Patent: February 28, 2017Assignee: SHOWA DENKO K.K.Inventors: Arihiro Mutoh, Yoshiaki Ikenoue, Masashi Sakaguchi, Hirokazu Murata, Masataka Takeuchi, Nobuaki Ishii
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Publication number: 20150295233Abstract: A negative electrode material for lithium ion batteries is obtained by a method which includes: mixing carbon particles (B) such as graphite particles, particles (A), such as Si particles, containing an element capable of occluding and releasing lithium ions, a carbon precursor such as sucrose, a carboxylic acid compound such as acetic acid, and a liquid medium such as water or isopropyl alcohol to prepare a slurry; drying and solidifying the slurry; and heat-treating the resulting solidified material to carbonize the carbon precursor. A lithium ion battery is obtained using this negative electrode material.Type: ApplicationFiled: November 21, 2013Publication date: October 15, 2015Applicants: UMICORE, SHOWA DENKO K.K.Inventors: Arihiro Mutoh, Yoshiaki Ikenoue, Masashi Sakaguchi, Hirokazu Murata, Masataka Takeuchi, Nobuaki Ishii
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Patent number: 8802187Abstract: The present invention provides a method of manufacturing a solar cell, comprising forming a buffer layer comprising a group-III nitride semiconductor on a substrate using a sputtering method, and forming a group-III nitride semiconductor layer and electrodes on the buffer layer. The group-III nitride semiconductor layer is formed on the buffer layer by at least one selected from the group consisting of the sputtering method, a MOCVD method, an MBE method, a CBE method, and an MLE method, and the electrodes are formed on the group-III nitride semiconductor layer.Type: GrantFiled: June 22, 2010Date of Patent: August 12, 2014Assignee: Showa Denko K.K.Inventors: Yoshiaki Ikenoue, Hisayuki Miki, Kenzo Hanawa, Yasumasa Sasaki, Hitoshi Yokouchi, Ryoko Konta, Hiroaki Kaji
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Publication number: 20100261308Abstract: The present invention provides a method of manufacturing a solar cell, comprising forming a buffer layer comprising a group-III nitride semiconductor on a substrate using a sputtering method, and forming a group-III nitride semiconductor layer and electrodes on the buffer layer. The group-III nitride semiconductor layer is formed on the buffer layer by at least one selected from the group consisting of the sputtering method, a MOCVD method, an MBE method, a CBE method, and an MLE method, and the electrodes are formed on the group-III nitride semiconductor layer.Type: ApplicationFiled: June 22, 2010Publication date: October 14, 2010Applicant: SHOWA DENKO K.K.Inventors: Yoshiaki IKENOUE, Hisayuki Miki, Kenzo Hanawa, Yasumasa Sasaki, Hitoshi Yokouchi, Ryoko Konta, Hiroaki Kaji
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Publication number: 20090205707Abstract: The object of the present invention is to provide a solar cell which is industrially beneficial and has high light conversion efficiency; and a method for producing a solar cell; and the present invention provides a solar cell comprising a substrate, a power generation layer for converting received light into electrical power, a translucent electrode, and another electrode, when light travels through each member from a first surface thereof, a surface opposite to the first surface is defined as a second surface, the power generation layer is formed at a second surface side of the substrate, the translucent electrode is formed on one surface of the power generation layer, and another electrode is formed on the other surface of the power generation layer, wherein the translucent electrode comprises hexagonal In2O3 crystal.Type: ApplicationFiled: February 18, 2009Publication date: August 20, 2009Applicant: SHOWA DENKO K.K.Inventors: Yoshiaki IKENOUE, Naoki Fukunaga, Hironao Shinohara, Hisayuki Miki, Kenzo Hanawa, Hiroaki Kaji, Hitoshi Yokouchi, Ryoko Konta
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Publication number: 20080223434Abstract: The present invention provides a solar cell that is useful for industry and has high photoelectric conversion efficiency and a method of manufacturing the same. A solar cell according to an aspect of the invention includes: a substrate; a buffer layer that is formed on the substrate and is composed of a group-III nitride semiconductor; and a group-III nitride semiconductor layer (p-type layer/an n-type layer) that has a p-n junction therein and is formed on the buffer layer. At least one of the buffer layer and the group-III nitride semiconductor layer having the p-n junction therein has a compound semiconductor layer formed by a sputtering method.Type: ApplicationFiled: February 19, 2008Publication date: September 18, 2008Applicant: SHOWA DENKO K.K.Inventors: Yoshiaki Ikenoue, Hisayuki Miki, Kenzo Hanawa, Yasumasa Sasaki, Hitoshi Yokouchi, Ryoko Konta, Hiroaki Kaji
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Patent number: 7175781Abstract: 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: GrantFiled: September 14, 2004Date of Patent: February 13, 2007Assignee: 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: 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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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: 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: 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: 5783251Abstract: 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: GrantFiled: May 27, 1997Date of Patent: July 21, 1998Assignee: Showa Denko K.K.Inventors: Hideki Tomozawa, Yoshihiro Saida, Junya Kato, Yukie Akakabe, Yoshiaki Ikenoue, Reiko Ichikawa
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Patent number: 5688873Abstract: 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: GrantFiled: June 7, 1995Date of Patent: November 18, 1997Assignee: Showa Denko K.K.Inventors: Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
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Patent number: 5648453Abstract: 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: GrantFiled: June 7, 1995Date of Patent: July 15, 1997Assignee: Showa Denko K.K.Inventors: Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
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Patent number: 5637652Abstract: 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: GrantFiled: June 6, 1994Date of Patent: June 10, 1997Assignee: Showa Denko Kabushiki KaishaInventors: Junya Kato, Yoshihiro Saida, Yoshiaki Ikenoue, Reiko Ichikawa
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Patent number: 5589270Abstract: 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: GrantFiled: June 1, 1995Date of Patent: December 31, 1996Assignees: Hitachi, Ltd., Showa Denko K.K.Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue