Patents by Inventor Kenichi Oyaizu
Kenichi Oyaizu 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: 9012901Abstract: A photoelectric conversion element having high photovoltaic conversion efficiency is provided. The photoelectric conversion element includes a first electrode, a second electrode arranged opposite to the first electrode, and an electron transport layer provided on a face of the first electrode, and the face is opposite to the second electrode. The photoelectric conversion element further includes a photosensitizer supported on the electron transport layer and a hole transport layer interposed between the first electrode and the second electrode. The electron transport layer contains a perylene imide derivative of [Chemical Formula 1].Type: GrantFiled: March 5, 2012Date of Patent: April 21, 2015Assignees: Panasonic Corporation, Waseda UniversityInventors: Michio Suzuka, Takashi Sekiguchi, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
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Patent number: 8952372Abstract: To provide a photoelectric element A including a first electrode 2, a second electrode 3 arranged opposite to the first electrode 2, an electron transport layer 1 provided on a face of the first electrode 2, the face being opposite to the second electrode 3, a photosensitizer 5 supported on the electron transport layer 1, and a hole transport layer 4 interposed between the first electrode 2 and the second electrode 3. The electron transport layer 1 includes a filled part 8 containing an organic molecule.Type: GrantFiled: December 12, 2012Date of Patent: February 10, 2015Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Michio Suzuka, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
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Patent number: 8895975Abstract: Provided is a photoelectric element that includes an electron transport layer having excellent electron transport properties and a sufficiently large reaction interface and has low resistance loss and excellent conversion efficiency between light and electricity. The photoelectric element includes a first electrode 3, a second electrode 4, an electron transport layer 1 and a hole transport layer 5 interposed between the first electrode 3 and the second electrode 4, an electrolyte solution, and a sensitizing dye. The electron transport layer 1 includes an organic compound having an oxidation-reduction site capable of repeated oxidation-reduction. The electrolyte solution serves to stabilize a reduction state of the oxidation-reduction site. The organic compound and the electrolyte solution form a gel layer 2. The sensitizing dye is provided in contact with the electron transport layer 1.Type: GrantFiled: March 5, 2012Date of Patent: November 25, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Naoki Hayashi, Michio Suzuka, Takashi Sekiguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
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Patent number: 8841550Abstract: A photoelectric element provided with an electron transport layer having excellent electron transport property and sufficiently wide reaction interface, and that has excellent conversion efficiency. The photoelectric element has an electron transport layer 3 and a hole transport layer 4 sandwiched between a pair of electrodes 2 and 5. The electron transport layer 3 is formed of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound contains an electrolyte solution which stabilizes the reduced state of the redox moiety, and forms a gel layer 6 containing a sensitizing dye.Type: GrantFiled: June 16, 2010Date of Patent: September 23, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Satoko Kambe
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Patent number: 8729532Abstract: The present invention provides a light-absorbing material capable of providing high photoelectric conversion efficiency when applied to a photoelectric conversion element. The light-absorbing material of the present invention has a structure represented by Formula (1) below: X—Y??(1) (wherein X represents a light-absorbing site, and Y represents a radical site that becomes a radical when in an oxidized state and/or when in a reduced state, and is capable of repeated oxidation-reduction).Type: GrantFiled: May 21, 2010Date of Patent: May 20, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Hiroyuki Nishide, Michio Suzuka, Takeyuki Yamaki, Kenichi Oyaizu, Fumiaki Kato, Satoko Kambe
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Publication number: 20140124757Abstract: To provide a photoelectric element A including a first electrode 2, a second electrode 3 arranged opposite to the first electrode 2, an electron transport layer 1 provided on a face of the first electrode 2, the face being opposite to the second electrode 3, a photosensitizer 5 supported on the electron transport layer 1, and a hole transport layer 4 interposed between the first electrode 2 and the second electrode 3. The electron transport layer 1 includes a filled part 8 containing an organic molecule.Type: ApplicationFiled: December 12, 2012Publication date: May 8, 2014Applicants: WASEDA UNIVERSITY, Panasonic CorporationInventors: Takashi Sekiguchi, Michio Suzuka, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
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Patent number: 8674215Abstract: This invention aims to provide a photpelectrical device with a superior conversion efficiency, which comprises an electron transport layer giving a superior electron-transporting performance and a sufficiently large dimentional interface. The photoelectric device further comprises a pair of electrode and a hole transport layer with the electron transport layer and the hole transport layer being interposed between electrodes. The electron transport layer is made of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound is included in a gel layer containing an electrolyte solution which stabilizes a reduction state of the redox moiety.Type: GrantFiled: July 31, 2009Date of Patent: March 18, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Akira Takahashi, Takeyuki Yamaki, Mitsuo Yaguchi, Michio Suzuka, Satoko Kambe
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Publication number: 20140070202Abstract: A photoelectric element includes a first electrode; and a second electrode positioned so as to face the first electrode; and a semiconductor disposed on a face of the first electrode, the face being positioned so as to face the second electrode; and a photosensitizer carried on the semiconductor; and a first charge-transport layer interposed between the first electrode and the second electrode; and a second charge-transport layer interposed between the first charge-transport layer and the second electrode. The first charge-transport layer and the second charge-transport layer contain different oxidation-reduction materials. The oxidation-reduction material in the first charge-transport layer has an oxidation-reduction potential higher than an oxidation-reduction potential of the oxidation-reduction material in the second charge-transport layer.Type: ApplicationFiled: December 18, 2012Publication date: March 13, 2014Applicant: Panasonic CorporationInventors: Michio Suzuka, Takashi Sekiguchi, Naoki Hayashi, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
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Publication number: 20140061532Abstract: The present invention provides a radical composition capable of suppressing elution of electrode components in an electrolyte solution when used in an electrode for a secondary battery, and a battery using the radical composition. The present invention relates to a radical composition including a pyrroline nitroxide polymer and polyethylene glycols.Type: ApplicationFiled: March 23, 2012Publication date: March 6, 2014Applicants: WASEDA UNIVERSITY, NEC CORPORATION, SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Hiroyuki Nishide, Kenichi Oyaizu, Sosuke Yamaguchi, Nobutaka Fujimoto, Yuji Kinpara, Shun Hashimoto, Shigeyuki Iwasa, Kentaro Nakahara
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Publication number: 20140048786Abstract: The present invention provides an electrode composite that has a reaction interface with a large area and can constitute a photoelectric element having high electron transport properties between the reaction interface and the electrode. The electrode composite of the present invention includes a first electrode and a conductive particle layer stacked on the first electrode. The conductive particle layer includes conductive particles containing acicular particles. The conductive particle layer has a three-dimensional porous network structure that is formed by the interconnection of the conductive particles. The three-dimensional network structure is joined to the first electrode. The conductive particle layer contains pores having a pore size of 50 nm or more in a total volume of 50% or more based on the volume of all pores in the conductive particle layer.Type: ApplicationFiled: December 10, 2012Publication date: February 20, 2014Inventors: Michio Suzuka, Takashi Sekiguchi, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
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Publication number: 20140038036Abstract: In a secondary battery utilizing redox by a radical site, charge-discharge is carried out in such a manner that a lithium ion moves between a positive electrode and a negative electrode (rocking chair-type). An anion in an amount necessary for electrode doping during charge-discharge is made unnecessary, thereby reducing the amount of an electrolytic solution. A secondary battery with a large energy density is achieved. Provided is an electrode active material including at least one polymer including a radical site capable of being converted into a first cation, and an anion site capable of being bonded with the first cation or a second cation.Type: ApplicationFiled: January 23, 2012Publication date: February 6, 2014Applicants: WASEDA UNIVERSITY, NEC CORPORATIONInventors: Hiroyuki Nishide, Kenichi Oyaizu, Hiroki Yakushiji, Shigeyuki Iwasa, Kentaro Nakahara
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Patent number: 8592807Abstract: Disclosed is a photoelectric element having an excellent conversion efficiency and provided with a hole transporting layer that is endowed with excellent hole transporting properties and a sufficiently large reaction interface. The photoelectric element of the invention has a pair of electrodes, an electron transporting layer and a hole transporting layer which are disposed between the electrodes, and an electrolyte solution. The hole transporting layer includes a first organic compound having a redox moiety capable of repeated oxidation and reduction. The electrolyte solution stabilizes a reduced state of the redox moiety. The organic compound and the electrolyte solution together form a first gel layer.Type: GrantFiled: July 29, 2010Date of Patent: November 26, 2013Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Satoko Kambe
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Publication number: 20130306954Abstract: Provided is a photoelectric element that includes an electron transport layer having excellent electron transport properties and a sufficiently large reaction interface and has low resistance loss and excellent conversion efficiency between light and electricity. The photoelectric element includes a first electrode 3, a second electrode 4, an electron transport layer 1 and a hole transport layer 5 interposed between the first electrode 3 and the second electrode 4, an electrolyte solution, and a sensitizing dye. The electron transport layer 1 includes an organic compound having an oxidation-reduction site capable of repeated oxidation-reduction. The electrolyte solution serves to stabilize a reduction state of the oxidation-reduction site. The organic compound and the electrolyte solution form a gel layer 2. The sensitizing dye is provided in contact with the electron transport layer 1.Type: ApplicationFiled: March 5, 2012Publication date: November 21, 2013Applicants: WASEDA UNIVERSITY, PANASONIC CORPORATIONInventors: Naoki Hayashi, Michio Suzuka, Takashi Sekiguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
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Publication number: 20130285043Abstract: A photoelectric conversion element having high photovoltaic conversion efficiency is provided. The photoelectric conversion element includes a first electrode, a second electrode arranged opposite to the first electrode, and an electron transport layer provided on a face of the first electrode, and the face is opposite to the second electrode. The photoelectric conversion element further includes a photosensitizer supported on the electron transport layer and a hole transport layer interposed between the first electrode and the second electrode. The electron transport layer contains a perylene imide derivative of [Chemical Formula 1].Type: ApplicationFiled: March 5, 2012Publication date: October 31, 2013Applicants: WASEDA UNIVERSITY, PANASONIC CORPORATIONInventors: Michio Suzuka, Takashi Sekiguchi, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
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Publication number: 20130199614Abstract: A photoelectric element 1 includes a first electrode, an electron transport layer supporting a photosensitizer, a hole transport layer, and a second electrode, and these components are stacked in the above order. The electron transport layer is formed of an organic compound produced by electrolytic polymerization of a precursor having, within one molecule thereof, two or more moieties each having a structure represented by the following structural formula (1). The photoelectric element 1 includes a gel layer composed of the organic compound and an electrolyte solution infiltrated into the organic compound.Type: ApplicationFiled: November 1, 2011Publication date: August 8, 2013Applicants: WASEDA UNIVERSITY, PANASONIC CORPORATIONInventors: Michio Suzuka, Takashi Sekiguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
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Publication number: 20130025683Abstract: The present invention provides a photoelectric conversion element comprising: an electron transport layer which has an excellent electron transport property and a sufficient reaction interface, and having excellent conversion efficiency. In the present invention, a photoelectric conversion element comprises: a first electrode; a second electrode; a stack of an electron transport layer and hole transport layer, the stack being interposed between the first electrode and the second electrode; an electrolyte solution; and a conductive agent; the electron transport layer containing an organic compound having a redox moiety causing repetitive oxidation-reduction reactions, the electrolyte solution being selected to give stable reduction condition of the redox moiety, the organic compound and the electrolyte solution being cooperative to form a gel layer. Wherein the conductive agent is present within the gal layer and kept at least partly in contact with the first electrode.Type: ApplicationFiled: February 4, 2011Publication date: January 31, 2013Inventors: Takashi Sekiguchi, Takeyuki Yamaki, Mitsuo Yaguchi, Michio Suzuka, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Satoko Kambe
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Publication number: 20120187387Abstract: Disclosed is a photoelectric element having an excellent conversion efficiency and provided with a hole transporting layer that is endowed with excellent hole transporting properties and a sufficiently large reaction interface. The photoelectric element of the invention has a pair of electrodes, an electron transporting layer and a hole transporting layer which are disposed between the electrodes, and an electrolyte solution. The hole transporting layer includes a first organic compound having a redox moiety capable of repeated oxidation and reduction. The electrolyte solution stabilizes a reduced state of the redox moiety. The organic compound and the electrolyte solution together form a first gel layer.Type: ApplicationFiled: July 29, 2010Publication date: July 26, 2012Applicants: Waseda University, Panasonic CorporationInventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Shingo Kambe, Satoko Kambe
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Publication number: 20120181516Abstract: The present invention provides a light-absorbing material capable of providing high photoelectric conversion efficiency when applied to a photoelectric conversion element. The light-absorbing material of the present invention has a structure represented by Formula (1) below: X—Y??(1) (wherein X represents a light-absorbing site, and Y represents a radical site that becomes a radical when in an oxidized state and/or when in a reduced state, and is capable of repeated oxidation-reduction).Type: ApplicationFiled: May 21, 2010Publication date: July 19, 2012Inventors: Takashi Sekiguchi, Hiroyuki Nishide, Michio Suzuka, Takeyuki Yamaki, Kenichi Oyaizu, Fumiaki Kato, Shingo Kambe, Satoko Kambe
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Publication number: 20120145562Abstract: An electrode for superoxide anions which contains a conductive component and, superimposed on a surface thereof, a film resulting from electrolytic polymerization of a metal thiofurylporphyrin/axial ligand complex; and a sensor for measuring a superoxide anion concentration including the same. The electrode for superoxide anions can prevent poisoning by a catalyst poison such as hydrogen peroxide. Accordingly, in any of in vitro or in vivo environments, this electrode for superoxide anions enables detection of superoxide anion radicals without suffering any influence from a catalyst poison such as hydrogen peroxide. Moreover, quantitative assay of superoxide anions can be performed with this electrode for superoxide anion in combination with a counter electrode or a reference electrode. Thus, this electrode for superoxide anions can find wide applicability in various fields.Type: ApplicationFiled: October 11, 2011Publication date: June 14, 2012Applicant: Makoto YuasaInventors: Makoto Yuasa, Kenichi Oyaizu, Aritomo Yamaguchi, Masuhide Ishikawa, Katsuya Eguchi, Tomohiro Kobayashi, Satoshi Tsutsui, Yuujirou Toyoda
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Publication number: 20120119193Abstract: A photoelectric element provided with an electron transport layer having excellent electron transport property and sufficiently wide reaction interface, and that has excellent conversion efficiency. The photoelectric element has an electron transport layer 3 and a hole transport layer 4 sandwiched between a pair of electrodes 2 and 5. The electron transport layer 3 is formed of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound contains an electrolyte solution which stabilizes the reduced state of the redox moiety, and forms a gel layer 6 containing a sensitizing dye.Type: ApplicationFiled: June 16, 2010Publication date: May 17, 2012Inventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Shingo Kambe, Sakoto Kambe