Patents by Inventor Koichi Shigeno

Koichi Shigeno 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: 20230383037
    Abstract: The object of the present invention is to provide an absorption enhancer capable of introducing high-molecular weight compounds into cells. The object can be solved by a composition of the present invention comprising a polymer compound having a group represented by the following general formula (1) or the following general formula (2) at a side chain, and a compound to be administered with a molecular weight of 1,000 to 1,200,000. wherein X1 is a residue of neutral amino acid or ?-aminoalkanoic acid in which an end amino group and an end carboxyl group are removed, X2 is a residue of cell-penetrating peptide in which an end amino group and an end carboxyl group are removed, X3 is a hydroxyl group, an amino group, an alkoxyl group having 1 to 4 carbon atoms or a benzyloxy group, a is an integer of 0 to 50, and * denotes a bonding site.
    Type: Application
    Filed: October 11, 2021
    Publication date: November 30, 2023
    Applicants: JOSHO GAKUEN EDUCATIONAL FOUNDATION, ADEKA CORPORATION
    Inventors: Shinji SAKUMA, Takumi TOMONO, Kohei MIYATA, Koichi SHIGENO
  • Patent number: 11414655
    Abstract: An object of the present invention is to provide a method for preparing ambrein, which can easily and efficiently obtain the ambrein. The object can be solved by a mutated tetraprenyl-?-curcumene cyclase wherein (1) a 4th amino acid residue of a DXDD motif, aspartic acid, is substituted with an amino acid other than aspartic acid, and (2) an amino acid adjacent to the N-terminus of a (A/S/G)RX(H/N)XXP motif is substituted with an amino acid other than tyrosine, or a 4th amino acid of the GXGX(G/A/P) motif is substituted with an amino acid other than leucine.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 16, 2022
    Assignees: Niigata University, Adeka Corporation
    Inventors: Tsutomu Sato, Tsutomu Hoshino, Toshihiko Takehana, Seiji Koike, Koichi Shigeno
  • Publication number: 20200354754
    Abstract: An object of the present invention is to provide a method for preparing ambrein, which can easily and efficiently obtain the ambrein. The object can be solved by a mutated tetraprenyl-?-curcumene cyclase wherein (1) a 4th amino acid residue of a DXDD motif, aspartic acid, is substituted with an amino acid other than aspartic acid, and (2) an amino acid adjacent to the N-terminus of a (A/S/G)RX(H/N)XXP motif is substituted with an amino acid other than tyrosine, or a 4th amino acid of the GXGX(G/A/P) motif is substituted with an amino acid other than leucine.
    Type: Application
    Filed: August 31, 2018
    Publication date: November 12, 2020
    Applicants: Niigata University, Adeka Corporation
    Inventors: Tsutomu Sato, Tsutomu Hoshino, Toshihiko Takehana, Seiji Koike, Koichi Shigeno
  • Patent number: 10131646
    Abstract: Provided are: an aromatic sulfonium salt compound which exhibits low corrosion to a substrate and excellent photolithographic characteristics and is thus useful as a photoacid generator and as a cationic polymerization agent; and a photoacid generator, a resist composition, a cationic polymerization initiator and a cationically polymerizable agent composition, which include the aromatic sulfonium salt compound. The aromatic sulfonium salt compound is represented by the following Formula (I): (wherein, R1 to R10 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a nitro group, a cyano group, an alkyl group having 1 to 18 carbon atoms which is optionally substituted, or the like; R11 to R15 each independently represent a hydrogen atom, an alkoxy group having 1 to 18 carbon atoms which is optionally substituted, or the like; at least one of R11 to R15 is not a hydrogen atom; and X1? represents a monovalent organic sulfonate anion).
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 20, 2018
    Assignee: ADEKA CORPORATION
    Inventors: Satoshi Yanagisawa, Hitomi Toda, Koichi Shigeno, Masaki Kimura
  • Publication number: 20180079724
    Abstract: Provide are: a sulfonic acid derivative compound which has high absorbance for light having a wavelength of 365 nm and exhibits high solubility in organic solvents and good acid generation rate; a photoacid generator; a resist composition; a cationic polymerization initiator; and a cationically polymerizable composition. The sulfonic acid derivative compound is represented by the following Formula (I): (wherein, X represents a linear or branched alkyl group having 1 to 14 carbon atoms; and R represents an aliphatic hydrocarbon group having 1 to 18 carbon atoms, an aryl group having 6 to 20 carbon atoms, an arylalkyl group having 7 to 20 carbon atoms, an acyl group-substituted aryl group having 7 to 20 carbon atoms, an alicyclic hydrocarbon group having 3 to 12 carbon atoms, a 10-camphoryl group or the like).
    Type: Application
    Filed: March 18, 2015
    Publication date: March 22, 2018
    Applicant: ADEKA CORPORATION
    Inventors: Satoshi YANAGISAWA, Masaki KIMURA, Hitomi TODA, Koichi SHIGENO
  • Publication number: 20180079738
    Abstract: Provided are: an aromatic sulfonium salt compound which exhibits low corrosion to a substrate and excellent photolithographic characteristics and is thus useful as a photoacid generator and as a cationic polymerization agent; and a photoacid generator, a resist composition, a cationic polymerization initiator and a cationically polymerizable agent composition, which include the aromatic sulfonium salt compound. The aromatic sulfonium salt compound is represented by the following Formula (I): (wherein, R1 to R10 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a nitro group, a cyano group, an alkyl group having 1 to 18 carbon atoms which is optionally substituted, or the like; R11 to R15 each independently represent a hydrogen atom, an alkoxy group having 1 to 18 carbon atoms which is optionally substituted, or the like; at least one of R11 to R15 is not a hydrogen atom; and X1? represents a monovalent organic sulfonate anion).
    Type: Application
    Filed: March 18, 2015
    Publication date: March 22, 2018
    Applicant: ADEKA CORPORATION
    Inventors: Satoshi YANAGISAWA, Hitomi TODA, Koichi SHIGENO, Masaki KIMURA
  • Patent number: 9334270
    Abstract: A compound represented by the following general formula (1). In the formula, A represents a benzene ring, a naphthalene ring and the like, wherein these rings may be substituted with a halogen atom and the like, R1 represents a hydrogen atom and the like, R2 represents a C1-35 hydrocarbon group having or not having at least one group selected from an epoxy group, 4-vinylphenyl group and a (meth)acryloyloxy group, or a hydrogen atom, wherein at least one of R2 with n occurrences is a C3-35 hydrocarbon group having at least one group selected from an epoxy group, a 4-vinylphenyl group and a (meth)acryloyloxy group, n represents an integer of 1 to 6, and X represents a nitrogen atom, an oxygen atom, a sulfur atom, a phosphorus atom, or an n-valent organic group having 35 or less carbon atoms.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 10, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Yosuke Maeda, Masaaki Shimizu, Koichi Shigeno
  • Patent number: 9239408
    Abstract: Disclosed is a colored (alkali-developable) photosensitive composition using a compound that is excellent in solubility and heat-resistance in a resin composition, and also relates to an optical filter using the colored (alkali-developable) photosensitive composition, specifically a color filter that does not decrease luminance and thus is preferable for image display devices such as liquid crystal display panels. Specifically, disclosed is a colored (alkali-developable) photosensitive composition containing (A) a dye that contains at least one kind of compound represented by any of the general formulas (1) to (4), (B) a polymerizable compound having an ethylenically unsaturated bond or (B?) a polymerizable compound having an ethylenically unsaturated bond, which has alkali-developability, and (C) a photopolymerization initiator, and use of the composition. The compound represented by any of the general formulas (1) to (4) is as described.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: January 19, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Yosuke Maeda, Masaaki Shimizu, Koichi Shigeno, Tomoyuki Ariyoshi
  • Publication number: 20150315153
    Abstract: Provided are: a compound which shows large absorption for light having a wavelength of 365 nm and has good acid generation rate; and a photoacid generator, cationic polymerization initiator, resist composition and cationically polymerizable composition that use the compound.
    Type: Application
    Filed: November 27, 2013
    Publication date: November 5, 2015
    Applicant: ADEKA CORPORATION
    Inventors: Satoshi YANAGISAWA, Shohei FUJITA, Takuya MINAMISHIMA, Koichi SHIGENO
  • Patent number: 9110350
    Abstract: A color conversion filter contains at least one kind of squarylium dye that radiates fluorescence light, has a wavelength conversion capability, absorbs light in an unneeded wavelength region, radiates fluorescence light in a preferable wavelength region, and does not allow decrease in brightness, and thus is preferable for color conversion light-emitting devices, photoelectric conversion devices and the like. Specifically, the color conversion filter has an absorption having a high intensity in the range of 570 to 600 nm, and thus is preferable for use in a color conversion filter that radiates fluorescence light having a high intensity in the range of 600 to 780 nm.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: August 18, 2015
    Assignee: ADEKA CORPORATION
    Inventors: Yosuke Maeda, Koichi Shigeno, Tomoyuki Ariyoshi, Mitsuhiro Okada, Yukiko Kanehara
  • Patent number: 9029434
    Abstract: The present invention provides a dye that is excellent in solubility and heat-resistance, and a novel compound that is suitable for the dye, and specifically provides a yellow dye having a maximum absorption wavelength in the region of 420 to 470 nm. Furthermore, the present invention provides a colored (alkali-developable) photosensitive composition and an optical filter using the dye, and specifically provides a color filter that does not decrease luminance and thus is preferable for an image display device such as a liquid crystal display panel. Specifically, the present invention provides a novel compound represented by the following general formula (1), a dye using the compound, and a colored (alkali-developable) photosensitive composition and a color filter. The content of the above-mentioned general formula (1) is as described in the description.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: May 12, 2015
    Assignee: Adeka Corporation
    Inventors: Yosuke Maeda, Masaaki Shimizu, Koichi Shigeno
  • Patent number: 8958165
    Abstract: Disclosed is a cyanine compound represented by general formula (I) below. Also disclosed are an optical filter using the compound and an optical recording material.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: February 17, 2015
    Assignee: Adeka Corporation
    Inventors: Toru Yano, Mitsuhiro Okada, Koichi Shigeno
  • Publication number: 20140332737
    Abstract: The present invention provides a dye that is excellent in solubility and heat-resistance, and a novel compound that is suitable for the dye, and specifically provides a yellow dye having a maximum absorption wavelength in the region of 420 to 470 nm. Furthermore, the present invention provides a colored (alkali-developable) photosensitive composition and an optical filter using the dye, and specifically provides a color filter that does not decrease luminance and thus is preferable for an image display device such as a liquid crystal display panel. Specifically, the present invention provides a novel compound represented by the following general formula (1), a dye using the compound, and a colored (alkali-developable) photosensitive composition and a color filter. The content of the above-mentioned general formula (1) is as described in the description.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 13, 2014
    Inventors: Yosuke MAEDA, Masaaki SHIMIZU, Koichi SHIGENO
  • Patent number: 8785007
    Abstract: The present invention provides green and red conversion films capable of keeping a sufficient intensity of converted light over a long period, and a multicolor emission organic EL device which exhibits light-emitting properties stably over a long period. The present invention includes a pendant-type polymeric compound characterized in that the pendant-type polymeric compound contains at least one repeating unit represented by a general formula (1) and at least one repeating unit represented by a general formula (2), (6) or (7), wherein n/(m+n)=1/100 to 100/100 provided that the molar ratio of (1):(2), (6) or (7) is m:n.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: July 22, 2014
    Assignee: Adeka Corporation
    Inventors: Masaru Nagai, Mitsuhiro Okada, Koichi Shigeno
  • Patent number: 8758897
    Abstract: Disclosed are a compound that emits fluorescence, particularly in its solid state, and is suited to provide a color converting material with various improved performance properties over prior art and a light emitter, a color conversion filter, a color conversion device, and a photoelectric device each containing the compound; particularly a Schiff base type compound of formula (I) and a coloring material, a color conversion layer, a light absorbing layer, a color conversion filter, a light absorbing filter, a color-converting light-emitting device, and a photoelectric device each containing the compound. The definition of the symbols in formula (I) is the same as in the specification.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 24, 2014
    Assignee: Adeka Corporation
    Inventors: Mitsuhiro Okada, Koichi Shigeno
  • Publication number: 20140003060
    Abstract: Disclosed is a light-diffusing resin composition capable of realizing high color rendering properties and brightness when used in light-diffusing sheets, and a light-diffusing sheet and a light source unit using same. Provided are the light-diffusing resin composition including a binder resin (A) preferably in 1 to 80 mass %, a light-diffusing agent (B) preferably in 15 to 95 mass %, and a trimethine cyanine compound (C) represented by formula (I) preferably in 0.0001 to 5 mass %; and the light-diffusing sheet using the light-diffusing resin composition in a light-diffusing layer. The light source unit has the light-diffusing sheet and a light source, preferably a white LED.
    Type: Application
    Filed: January 17, 2012
    Publication date: January 2, 2014
    Inventors: Mitsuhiro Okada, Koichi Shigeno, Yukiko Kanehara
  • Publication number: 20130306920
    Abstract: Disclosed is a colored (alkali-developable) photosensitive composition using a compound that is excellent in solubility and heat-resistance in a resin composition, and also relates to an optical filter using the colored (alkali-developable) photosensitive composition, specifically a color filter that does not decrease luminance and thus is preferable for image display devices such as liquid crystal display panels. Specifically, disclosed is a colored (alkali-developable) photosensitive composition containing (A) a dye that contains at least one kind of compound represented by any of the general formulas (1) to (4), (B) a polymerizable compound having an ethylenically unsaturated bond or (B?) a polymerizable compound having an ethylenically unsaturated bond, which has alkali-developability, and (C) a photopolymerization initiator, and use of the composition. The compound represented by any of the general formulas (1) to (4) is as described.
    Type: Application
    Filed: January 26, 2012
    Publication date: November 21, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Yosuke Maeda, Masaaki Shimizu, Koichi Shigeno, Tomoyuki Ariyoshi
  • Publication number: 20130296455
    Abstract: Disclosed are a dye that is excellent in solubility and heat-resistance, and a novel compound that is suitable for the dye, and specifically provides a yellow dye having a maximum absorption wavelength in the region of 420 to 470 nm. Also disclosed are a colored (alkali-developable) photosensitive composition and an optical filter using the dye, and specifically provides a color filter that does not decrease luminance and thus is preferable for an image display device such as a liquid crystal display panel. Specifically, disclosed are a novel compound represented by the following general formula (1), a dye using the compound, and a colored (alkali-developable) photosensitive composition and a color filter. The content of the above-mentioned general formula (1) is as described in the description.
    Type: Application
    Filed: December 27, 2011
    Publication date: November 7, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Yosuke Maeda, Masaaki Shimizu, Koichi Shigeno
  • Patent number: 8568884
    Abstract: Disclosed are a compound that emits fluorescence, particularly in its solid state, and is suited to provide a color converting material with various improved performance properties over prior art and a light emitter, a color conversion filter, a color conversion device, and a photoelectric device each containing the compound; particularly a Schiff base type compound of formula (I) and a coloring material, a color conversion layer, a light absorbing layer, a color conversion filter, a light absorbing filter, a color-converting light-emitting device, and a photoelectric device each containing the compound. The definition of the symbols in formula (I) is the same as in the specification.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 29, 2013
    Assignee: Adeka Corporation
    Inventors: Mitsuhiro Okada, Koichi Shigeno
  • Publication number: 20130252024
    Abstract: Disclosed are a compound that emits fluorescence, particularly in its solid state, and is suited to provide a color converting material with various improved performance properties over prior art and a light emitter, a color conversion filter, a color conversion device, and a photoelectric device each containing the compound; particularly a Schiff base type compound of formula (I) and a coloring material, a color conversion layer, a light absorbing layer, a color conversion filter, a light absorbing filter, a color-converting light-emitting device, and a photoelectric device each containing the compound. The definition of the symbols in formula (I) is the same as in the specification.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 26, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Mitsuhiro OKADA, Koichi SHIGENO