Patents by Inventor Masaaki Ikeda

Masaaki Ikeda 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: 8124964
    Abstract: Disclosed is a field-effect transistor characterized by using a compound represented by the formula (1) below as a semiconductor material. (In the formula (1), X1 and X2 independently represent a sulfur atom, a selenium atom or a tellurium atom; and R1 and R2 independently represent an unsubstituted or halogeno-substituted C1-C36 aliphatic hydrocarbon group.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 28, 2012
    Assignees: Nippon Kayaku Kabushiki Kaisha, Hiroshima University
    Inventors: Kazuo Takimiya, Hideaki Ebata, Hirokazu Kuwabara, Masaaki Ikeda, Tatsuto Yui
  • Publication number: 20110303910
    Abstract: A heterocyclic compound represented by formula (1) and a field effect transistor having a semiconductor layer comprising the compound. (In the formula, X1 and X2 each independently represents a sulfur atom or a selenium atom, and R1 and R2 each independently represents a C5-16 alkyl.
    Type: Application
    Filed: February 25, 2010
    Publication date: December 15, 2011
    Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, HIROSHIMA UNIVERSITY
    Inventors: Hirokazu Kuwabara, Masaaki Ikeda, Kazuo Takimiya
  • Publication number: 20110204295
    Abstract: Disclosed are a heterocyclic compound characterized by being represented by formula (1), and a composition of the compound. Also disclosed is an organic electronic device using the compound. (In formula (1), X1, X2 and X3 each independently represents a sulfur atom or a selenium atom; and R1-R6 each independently represents an aromatic hydrocarbon group, an aliphatic hydrocarbon group, a halogen atom, a hydroxyl group, an alkoxyl group, a mercapto group, an alkylthio group, a boronic acid group, a nitro group, a substituted amino group, an amide group, an acyl group, a carboxyl group, an acyloxy group, a cyano group, a sulfo group, a sulfamoyl group, an alkylsulfamoyl group, a carbamoyl group, an alkylcarbamoyl group or a hydrogen atom, provided that all the R1-R6 are not hydrogen atoms at the same time.) The compound represented by formula (1) is suitable for use in an organic electronic device such as an organic EL element, an organic transistor element and a liquid crystal element.
    Type: Application
    Filed: November 20, 2009
    Publication date: August 25, 2011
    Applicants: HIROSHIMA UNIVERSITY, NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Hirokazu Kuwabara, Masaaki Ikeda, Kazuo Takimiya
  • Patent number: 7973615
    Abstract: The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide in which a half-wavelength TE mode resonator is formed; an E plane coupling window formed in a wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator in the waveguide; an output line provided at the edge on the side of the wall portion parallel with the H plane on the E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at the edge on the side of the wall portion parallel with the H plane in the E plane coupling window, and magnetically coupled to the electromagnetic waves.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: July 5, 2011
    Assignee: TDK Corporation
    Inventors: Tatsuya Fukunaga, Masaaki Ikeda, Kiyoshi Hatanaka
  • Patent number: 7971833
    Abstract: A cable protection and guide device in which wear damage in mounting portions of a mounting bracket is avoided and the mounting bracket is reliably and strongly mounted so that the cable is smoothly protected and guided. The mounting operation of the bracket is easy. A cable protection and guide device includes a mounting bracket having a mounting hole which surrounds and accommodates a tap bolt. A threaded portion 162 of the tap bolt includes a metallic bush 170 and the length H1 of the metallic bush 170 in a bolt inserting direction is shorter than the length H2 of the mounting hole 143 in a bolt inserting direction.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: July 5, 2011
    Assignee: Tsubakimoto Chain Co.
    Inventors: Akihiko Utaki, Katsuhide Yamashita, Masaaki Ikeda
  • Publication number: 20110121141
    Abstract: The invention provides a multijoint cable protection and guide device that steadily protects and guides cables and the like that assume flexed and straight postures. The device includes a flexible belt member in which a plurality of center tubular portions through which cables are inserted and a pair of right and left side tubular portions disposed in parallel along the center tubular portions. The center tubular portions and the pair of right and left side tubular portions are integrally molded. A pair of right and left multijoint supporting members is inserted through side tubular portions of the flexible belt member. The multijoint supporting member is composed of a large number of block bodies that are flexibly connected together by concave-convex fittings.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicants: TSUBAKIMOTO CHAIN CO., HITACHI CABLE, LTD.
    Inventors: KIYOTAKE TATSUTA, MASAAKI IKEDA, SHOICHIRO KOMIYA, TAKAYUKI MATSUDA
  • Patent number: 7915524
    Abstract: A sealing agent for a photoelectric conversion device which comprises one or more of a compound having a glycidyl structure, a compound having a cyclohexene oxide structure, a compound having an oxetane structure and a compound having a vinyl ether structure, and a cationic polymerization initiator; a photoelectric conversion device using the sealing agent; and a solar cell comprising the photoelectric conversion device. The sealing agent for a photoelectric conversion device can be used for pasting together upper and lower electroconductive glass substrates at an ordinary temperature in the manufacture of a photoelectric conversion device, and is excellent with respect to adhesion strength and the reliability in moisture resistance.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: March 29, 2011
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Teruhisa Inoue, Koichiro Shigaki, Masaaki Ikeda
  • Publication number: 20110030801
    Abstract: A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the otherside of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.
    Type: Application
    Filed: October 20, 2010
    Publication date: February 10, 2011
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Masaaki Ikeda, Koichiro Shigaki, Teruhisa Inoue
  • Publication number: 20110031446
    Abstract: A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the otherside of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.
    Type: Application
    Filed: October 20, 2010
    Publication date: February 10, 2011
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Masaaki Ikeda, Koichiro Shigaki, Teruhisa Inoue
  • Patent number: 7851701
    Abstract: A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the other side of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: December 14, 2010
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masaaki Ikeda, Koichiro Shigaki, Teruhisa Inoue
  • Publication number: 20100244995
    Abstract: The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide (3) in which a half-wavelength TE mode resonator (2) is formed; an E plane coupling window (4) formed in a wall portion (3a) orthogonal to an H plane out of wall portions (3a) to (3e) constructing the TE mode resonator (2) in the waveguide (3); an output line (5a) provided at the edge on the side of the wall portion (3d) parallel with the H plane on the E plane coupling window (4), and magnetically coupled to electromagnetic waves in the TE mode resonator (2); and another output line (5b) provided at the edge on the side of the wall portion (3e) parallel with the H plane in the E plane coupling window (4), and magnetically coupled to the electromagnetic waves.
    Type: Application
    Filed: May 27, 2010
    Publication date: September 30, 2010
    Applicant: TDK CORPORATION
    Inventors: Tatsuya Fukunaga, Masaaki Ikeda, Kiyoshi Hatanaka
  • Patent number: 7795032
    Abstract: Terminal differentiated cells are proliferated by introducing a cyclin and a cyclin dependent kinase into the nucleus of terminal differentiated cells, and then cultivating or holding the cells. A method for proliferating terminal differentiated cells comprising adding a nucleotide sequence coding for a nuclear localization signal to at least one of a cyclin gene and a cyclin dependent kinase gene, and introducing each of the genes to terminal differentiated cells in vitro, and then cultivating the cells, or introducing each of the genes directly to terminal differentiated cells in vivo is provided. The cyclin is a cyclin that can activate CDK4 or CDK6, and the cyclin dependent kinase is a cyclin dependent kinase that is activated by D-type cyclin. The invention also provides a recombinant vector used for such a method or a pharmaceutical composition comprising the vector.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: September 14, 2010
    Inventors: Masaaki Ikeda, Mimi Adachi
  • Patent number: 7750760
    Abstract: The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide (3) in which a half-wavelength TE mode resonator (2) is formed; an E plane coupling window (4) formed in a wall portion (3a) orthogonal to an H plane out of wall portions (3a) to (3e) constructing the TE mode resonator (2) in the waveguide (3); an output line (5a) provided at the edge on the side of the wall portion (3d) parallel with the H plane on the E plane coupling window (4), and magnetically coupled to electromagnetic waves in the TE mode resonator (2); and another output line (5b) provided at the edge on the side of the wall portion (3e) parallel with the H plane in the E plane coupling window (4), and magnetically coupled to the electromagnetic waves.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: July 6, 2010
    Assignee: TDK Corporation
    Inventors: Tatsuya Fukunaga, Masaaki Ikeda, Kiyoshi Hatanaka
  • Patent number: 7741563
    Abstract: A closed type cable or the like protection and guide device that reduces noise generation due to the generation of sliding contact sound during operation prevents entry of fine chips and wear powders of metal into the cable or the like protection and guide device. Scattering of contact wear powders, which are generated by sliding contact between components of the cable or the like protection and guide device, into the operation space can be prevented and a maintenance of the device is reduced. A cable or the like is included in a flexible support to be protected and guided from a fixed end side mounting member toward a movable end side mounting member and the entire outer surface of the flexible support except for an inlet and an outlet of the cable or the like is covered with a heat resistant tubular cloth cover.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: June 22, 2010
    Assignee: Tsubakimoto Chain Co.
    Inventors: Mitsuhiro Harada, Masaaki Ikeda
  • Publication number: 20100137617
    Abstract: Disclosed is a method for producing an aromatic compound represented by the general formula (2) below, which is characterized in that a compound represented by the general formula (1) below is reacted with a sulfur compound (at least one member selected from the group consisting of sulfur, hydrogen sulfide, metal hydrosulfides and metal sulfides) or a selenium compound. (In the formula (1), R1 represents a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an ester group, an optionally substituted alkyl group having 1-18 carbon atoms or the like; R2 represents a halogen atom; R3 represents a hydrogen atom, C?C—R1 or R2; and n represents an integer of 0-4. When n is not less than 2, R3's may be the same as or different from each other.) (In the formula (2), R1, R3 and n are as defined in the formula (1); and X represents a sulfur atom or a selenium atom.
    Type: Application
    Filed: May 13, 2008
    Publication date: June 3, 2010
    Applicants: Nippon Kayaku Kabushiki Kaisha, Hiroshima University
    Inventors: Hirokazu Kuwabara, Masaaki Ikeda, Kazuo Takimiya
  • Patent number: 7728222
    Abstract: A photoelectric conversion device comprising an organic dye-sensitizing semiconductor fine particle thin film is prepared by using a dye having a barbituric acid structure as a partial structure and by adsorbing the dye on a semiconductor thin film electrode, and thereby a low-cost photoelectric conversion device having high conversion efficiency, and a solar cell using the device are provided.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: June 1, 2010
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masaaki Ikeda, Koichiro Shigaki, Teruhisa Inoue
  • Publication number: 20100032655
    Abstract: Disclosed is a field-effect transistor characterized by using a compound represented by the formula (1) below as a semiconductor material. (In the formula (1), X1 and X2 independently represent a sulfur atom, a selenium atom or a tellurium atom; and R1 and R2 independently represent an unsubstituted or halogeno-substituted C1-C36 aliphatic hydrocarbon group.
    Type: Application
    Filed: October 19, 2007
    Publication date: February 11, 2010
    Inventors: Kazuo Takimiya, Hideaki Ebata, Hirokazu Kuwabara, Masaaki Ikeda, Tatsuto Yui
  • Patent number: 7637092
    Abstract: A cable protection and guide device in which the number of parts used is reduced and assembly is simplified. Dust generation and bending fatigue is suppressed so that the cable protection and guide device exhibits excellent form stability of the cable accommodating space. Side plate portions and coupling portions are integrally molded from polyamide fatigue resistant resin into the form of a connecting link module. A polyacetal resin stopper link, which holds and limits the linear position and the bending position by engagement with the connecting link module, is inter-fitted with a coupling portion of the connecting link module by a snap-fit mechanism from the cable accommodating space side.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 29, 2009
    Assignee: Tsubakimoto Chain Co.
    Inventors: Akihiko Utaki, Masaaki Ikeda
  • Publication number: 20090266045
    Abstract: A cable protection and guide device in which the number of parts used is reduced and assembly is simplified. Dust generation and bending fatigue is suppressed so that the cable protection and guide device exhibits excellent form stability of the cable accommodating space. Side plate portions and coupling portions are integrally molded from polyamide fatigue resistant resin into the form of a connecting link module. A polyacetal resin stopper link, which holds and limits the linear position and the bending position by engagement with the connecting link module, is inter-fitted with a coupling portion of the connecting link module by a snap-fit mechanism from the cable accommodating space side.
    Type: Application
    Filed: January 23, 2009
    Publication date: October 29, 2009
    Inventors: Akihiko Utaki, Masaaki Ikeda
  • Patent number: 7559340
    Abstract: A tube type cable protection and guide device in which the device can be easily manufactured by extrusion molding without changing the size of a mold so that devices of different lengths can be made. Smooth linear and flexional movements can be made while sufficiently ensuring dimensional stability and torsional rigidity of the device thus assuring stability of the cable accommodating space. A tube type cable protection and guide device includes integrally molded inner circumferential wall forming portions. The inner wall forming portions are interdigitatedly fitted in a male-female relationship in a longitudinal direction of the sheet forming a flush inner flat surface.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: July 14, 2009
    Assignee: Tsubakimoto Chain Co.
    Inventors: Masaaki Ikeda, Shoichiro Komiya, Katsuhide Yamashita, Takayuki Matsuda