Patents by Inventor Tamotsu Horiuchi

Tamotsu Horiuchi 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).

  • Patent number: 9318270
    Abstract: An perovskite solar cell including a substrate; a first electrode provided on the substrate; an electron transport layer, including an electron transporting compound, provided on the first electrode; a perovskite compound layer, including a perovskite compound, provided on the electron transport layer; a hole transport layer, including a hole transport compound, provided on the perovskite compound layer; and a second electrode provided on the hole transport layer. The perovskite compound can be expressed by the general formula X?Y?M?, where X is a halogen atom, Y is an alkylamine compound, M includes a mixture of lead and antimony, and a ratio of ?:?:? is 3:1:1.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 19, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tamotsu Horiuchi, Tohru Yashiro, Yuuji Tanaka
  • Patent number: 9304368
    Abstract: An electrochromic device, which contains: one support; a first electrode layer formed on the support; a second electrode layer provided to face the first electrode layer; an electrochromic layer provided to be in contact with the first electrode layer or the second electrode layer; a solid electrolyte layer containing inorganic particles, which is filled between the first electrode layer and the second electrode layer, and is provided to be in contact with the electrochromic layer; and a protective layer provided on the second electrode layer.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 5, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tohru Yashiro, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Hiroyuki Takahashi, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Yoshinori Okada, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi
  • Publication number: 20160005375
    Abstract: An electrochromic display device is provided. The electrochromic display device includes a first substrate; a first electrode formed of a transparent conductive film, overlying the first substrate; a second electrode formed of a transparent conductive film, overlying the first electrode; a white reflective layer, overlying the second electrode; a reflective layer, overlying the white reflective layer; a support substrate, overlying the reflective layer; an electrochromic layer, adjacent to the first electrode or the second electrode; and an electrolyte, present between the first electrode and the second electrode.
    Type: Application
    Filed: June 26, 2015
    Publication date: January 7, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshihisa Naijo, Tohru Yashiro, Hiroyuki Takahashi, Koh Fujimura, Shigenobu Hirano, Toshiya Sagisaka, Satoshi Yamamoto, Daisuke Goto, Keiichiroh Yutani, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Mamiko Inoue, Keigo Takauji, Tamotsu Horiuchi
  • Publication number: 20150331295
    Abstract: To provide an electrochromic display element, which contains: a display substrate; a display electrode; an electrochromic layer provided in contact with the display electrode; a counter substrate provided to face the display substrate; a counter electrode; a charge retention layer provided in contact with the counter electrode; and an electrolyte layer filling between the display substrate and the counter substrate, wherein the electrochromic layer contains titanium oxide particles, and metal hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 19, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hiroyuki Takahashi, Tamotsu Horiuchi, Tohru Yashiro, Keiichiroh Yutani, Yoshinori Okada, Sukchan Kim, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Satoshi Yamamoto, Daisuke Goto
  • Publication number: 20150279573
    Abstract: An perovskite solar cell including a substrate; a first electrode provided on the substrate; an electron transport layer, including an electron transporting compound, provided on the first electrode; a perovskite compound layer, including a perovskite compound, provided on the electron transport layer; a hole transport layer, including a hole transport compound, provided on the perovskite compound layer; and a second electrode provided on the hole transport layer. The perovskite compound can be expressed by the general formula X?Y?M?, where X is a halogen atom, Y is an alkylamine compound, M includes a mixture of lead and antimony, and a ratio of ?:?:? is 3:1:1.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tamotsu HORIUCHI, Tohru YASHIRO, Yuuji TANAKA
  • Publication number: 20150274761
    Abstract: To provide an electrochromic compound, represented by the following general formula (I): General Formula (I) where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): General Formula (II) General Formula (III) where X9, X10, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 1, 2015
    Inventors: Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi, Mamiko Inoue
  • Publication number: 20150198857
    Abstract: An electrochromic device, which contains: one support; a first electrode layer formed on the support; a second electrode layer provided to face the first electrode layer; an electrochromic layer provided to be in contact with the first electrode layer or the second electrode layer; a solid electrolyte layer containing inorganic particles, which is filled between the first electrode layer and the second electrode layer, and is provided to be in contact with the electrochromic layer; and a protective layer provided on the second electrode layer.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 16, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tohru Yashiro, Shigenobu HIRANO, Toshiya SAGISAKA, Mamiko INOUE, Hiroyuki TAKAHASHI, Koh FUJIMURA, Yoshihisa NAIJO, Kazuaki TSUJI, Yoshinori OKADA, Sukchan KIM, Keiichiroh YUTANI, Tamotsu HORIUCHI
  • Publication number: 20150168796
    Abstract: Disclosed is an electrochromic device that has a first electrode layer, a second electrode layer provided to oppose the first electrode layer, an electrochromic layer provided between the first electrode layer and the second electrode layer, and an electrolyte filling a predetermined region between the first electrode layer and the second electrode layer, wherein a through-hole is formed on at least one layer of the first electrode layer and the second electrode layer and wherein a supporter is provided on only either one side of an outside of the first electrode layer and an outside of the second electrode layer.
    Type: Application
    Filed: July 22, 2013
    Publication date: June 18, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tohru Yashiro, Yoshihisa Naijo, Shigenobu Hirano, Sukchan Kim, Koh Fujimura, Kazuaki Tsuji, Hiroyuki Takahashi, Yoshinori Okada, Keiichiroh Yutani, Tamotsu Horiuchi
  • Publication number: 20150083226
    Abstract: A photoelectric conversion element is provided. The photoelectric conversion element includes a first electrode and a second electrode. The first electrode is covered with an electron transport layer. The electron transport layer is covered with a material represented by the following formula (1): wherein R represents a straight-chain or branched-chain alkyl group, each of X1 and X2 independently represents a substituted or unsubstituted aromatic group, each of Y1 and Y2 independently represents an acidic group or hydrogen atom but at least one of Y1 and Y2 represents an acidic group, and n represents an integer of from 1 to 3. The second electrode is facing the electron transport layer.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 26, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Ryota Arai, Yuuji Tanaka, Tamotsu Horiuchi
  • Publication number: 20150083210
    Abstract: A photoelectric conversion element is provided. The photoelectric conversion element includes a first electrode and a second electrode. The first electrode is covered with an electron transport layer. The electron transport layer is covered with a material represented by the following formula (1): wherein each of R1 and R2 independently represents a straight-chain or branched-chain alkyl group, Ar represents a substituted or unsubstituted aryl group, each of X1 and X2 independently represents a substituted or unsubstituted aryl group or a substituted or unsubstituted saturated hydrocarbon group, n represents an integer of from 1 to 3, and Ar may share bond connectivity with X1 or X2 to form a ring. The second electrode is facing the electron transport layer.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 26, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Ryota ARAI, Yuuji TANAKA, Tamotsu HORIUCHI
  • Publication number: 20140212705
    Abstract: A solid dye sensitization type solar cell includes a substrate, a first electrode disposed on the substrate, an electron transport layer including an electron transport semiconductor and disposed on the first electrode, the electron transport layer including a photosensitizing compound adsorbed on a surface of the electron transport semiconductor, a hole transport layer disposed on the electron transport layer, and a second electrode disposed on the hole transport layer. Each of the first electrode and the second electrode includes divided multiple electrodes.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 31, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tamotsu Horiuchi, Tohru Yashiro, Hiroshi Deguchi, Hisamitsu Kamezaki, Takumi Yamaga, Keiichiroh Yutani, Yuko Arizumi
  • Patent number: 8623577
    Abstract: To provide: a latent electrostatic image bearing member including one of a cured material obtained through radical polymerization of a radically polymerizable compound of component (A1), and a cured material obtained through radical polymerization of a radically polymerizable compound of component (A2) in the outermost layer, wherein the component (A1) includes two radically polymerizable groups and a substituted amino group which does not include a radically polymerizable group in a molecule, and the radically polymerizable group and the nearest substituted amino group which does not include an unsaturated bond in between are connected with two or more aromatic hydrocarbon compounds, and, the radically polymerizable compound of component (A2) includes a condensed polycyclic aromatic hydrocarbon formed by bonding a radically polymerizable group and a non-radically polymerizable substituted amine group through a condensed polycyclic aromatic hydrocarbon group; and an image forming apparatus, image forming meth
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: January 7, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tamotsu Horiuchi, Kazukiyo Nagai, Hongguo Li, Tetsuro Suzuki, Hiroshi Tamura
  • Patent number: 8440713
    Abstract: A [1]benzothieno[3,2-b][1]benzothiophene compound expressed by General Formula (I): General Formula (I) where X and Y are each independently a hydrogen atom; a halogen atom; or a functional group having a straight or branched aliphatic alkyl group optionally having a halogen atom, a functional group having an alicyclic alkyl group optionally having a halogen atom, a functional group having a straight or branched aliphatic alkenyl group optionally having a halogen atom, a functional group having an alicyclic alkenyl group optionally having a halogen atom, a functional group having a carboxyl group, or a functional group having a thiol group, as a partial structure; and X and Y are the same or each independently different, provided that at least one of X and Y has a straight or branched aliphatic alkenyl group, an alicyclic alkenyl group, a carboxyl group or a thiol group, as a partial structure.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 14, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Goto, Masafumi Torii, Tamotsu Horiuchi, Tamotsu Aruga, Hiroshi Ikuno, Toshiya Sagisaka, Satoshi Yamamoto, Takeshi Orito, Masataka Mohri, Takashi Okada, Takuji Kato, Shinji Matsumoto
  • Patent number: 8193304
    Abstract: A benzobisthiazole compound having a specific formula, and a benzobisthiazole polymer having a specific benzothiazole structure. An organic film including the benzobisthiazole polymer, the benzobisthiazole compound and/or a polymer obtained from the benzobisthiazole compound. An organic thin-film transistor including an organic semiconductor layer including the organic film; a pair of electrodes configured to flow an electric current through the organic semiconductor layer; and a third electrode configured to apply a voltage to the organic semiconductor layer.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 5, 2012
    Assignee: Ricoh Company Limited
    Inventors: Satoshi Yamamoto, Masafumi Torii, Tamotsu Aruga, Tamotsu Horiuchi, Takuji Kato, Toshiya Sagisaka, Takashi Okada, Daisuke Goto, Shinji Matsumoto, Hiroshi Ikuno, Takeshi Orito, Masataka Mohri
  • Publication number: 20120125414
    Abstract: The photoelectric converter includes a substrate; and multiple cells located on the substrate so as to be overlaid. The first cell contacted with the substrate includes a transparent electrode located on the substrate, and a first photoelectric conversion layer located on the transparent electrode. The other cell or each of the others of the multiple cells includes a porous electroconductive layer located closer to the substrate and including an electroconductive material, and a photoelectric conversion layer located on the porous electroconductive layer. Each of the photoelectric conversion layers of the multiple cells includes an electron transport layer including an electron transport material, a dye connected with or adsorbed on the electron transport material, and a hole transport material. The hole transport material is also contained in voids of the porous electroconductive layer.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 24, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hisamitsu KAMEZAKI, Yoshihisa NAIJO, Tohru YASHIRO, Tamotsu HORIUCHI, Masafumi TORII
  • Publication number: 20110287353
    Abstract: To provide: a latent electrostatic image bearing member including one of a cured material obtained through radical polymerization of a radically polymerizable compound of component (A1), and a cured material obtained through radical polymerization of a radically polymerizable compound of component (A2) in the outermost layer, wherein the component (A1) includes two radically polymerizable groups and a substituted amino group which does not include a radically polymerizable group in a molecule, and the radically polymerizable group and the nearest substituted amino group which does not include an unsaturated bond in between are connected with two or more aromatic hydrocarbon compounds, and, the radically polymerizable compound of component (A2) includes a condensed polycyclic aromatic hydrocarbon formed by bonding a radically polymerizable group and a non-radically polymerizable substituted amine group through a condensed polycyclic aromatic hydrocarbon group; and an image forming apparatus, image forming meth
    Type: Application
    Filed: November 9, 2007
    Publication date: November 24, 2011
    Inventors: Tamotsu HORIUCHI, Kazukiyo Nagai, Hongguo Li, Tetsuro Suzuki, Hiroshi Tamura
  • Patent number: 8017807
    Abstract: A new tetrahydroxy compound having a specific structure including two 2,3-dihydroxypropyloxy groups is provided. The compound has good charge transport property. In addition, a charge transport layer including the tetrahydroxy compound or a reaction product of the tetrahydroxy compound is provided. Further, a charge transport layer coating liquid is provided which includes the tetrahydroxy compound, and an alcohol. Furthermore an electrophotographic photoreceptor is provided which includes an electroconductive substrate, a charge generation layer, a charge transport layer and an outermost layer including the tetrahydroxy compound or a reaction product of the tetrahydroxy compound.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: September 13, 2011
    Assignee: Ricoh Company Limited
    Inventors: Kazukiyo Nagai, Tamotsu Horiuchi
  • Patent number: 7985520
    Abstract: A photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, the photosensitive layer including a cross-linking surface layer including a cross-linked copolymer of a radical polymerizable monomer (I) having at least three functional groups without a charge transport structure and a radical polymerizable monomer (II) having a charge transport structure, and a polysiloxane-acryl block copolymer having a charge transport property.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: July 26, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Hongguo Li, Kazukiyo Nagai, Kyohji Okada, Tamotsu Horiuchi
  • Publication number: 20110040107
    Abstract: A [1]benzothieno[3,2-b][1]benzothiophene compound expressed by General Formula (I): General Formula (I) where X and Y are each independently a hydrogen atom; a halogen atom; or a functional group having a straight or branched aliphatic alkyl group optionally having a halogen atom, a functional group having an alicyclic alkyl group optionally having a halogen atom, a functional group having a straight or branched aliphatic alkenyl group optionally having a halogen atom, a functional group having an alicyclic alkenyl group optionally having a halogen atom, a functional group having a carboxyl group, or a functional group having a thiol group, as a partial structure; and X and Y are the same or each independently different, provided that at least one of X and Y has a straight or branched aliphatic alkenyl group, an alicyclic alkenyl group, a carboxyl group or a thiol group, as a partial structure.
    Type: Application
    Filed: April 15, 2009
    Publication date: February 17, 2011
    Inventors: Daisuke Goto, Masafumi Torii, Tamotsu Horiuchi, Tamotsu Aruga, Hiroshi Ikuno, Toshiya Sagisaka, Satoshi Yamamoto, Takeshi Orito, Masataka Mohri, Takashi Okada, Takuji Kato, Shinji Mutsumoto
  • Patent number: 7795529
    Abstract: Disclosed are an organic dye having a specific structure, a photoelectric conversion material containing the dye, a semiconductor electrode formed of a substrate having an electrically conductive surface, a semiconductor layer coated on the electrically conductive surface and the above dye adsorbed on the surface, and a photoelectric conversion device to which the above dye is applied. The present invention uses the above dye and can therefore provide a photoelectric conversion device excellent in photoelectric conversion efficiency, and the photoelectric conversion device is suitable for use in a solar cell or the like.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: September 14, 2010
    Assignee: Mitsubishi Paper Mills Ltd.
    Inventors: Tamotsu Horiuchi, Hidetoshi Miura