Patents by Inventor Tetsuji Murase

Tetsuji Murase 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: 11718758
    Abstract: Provided is an aqueous dispersion of colored particles suitable for colorants for writing instrument inks, inkjet inks, painting materials, aqueous coatings, and the like. The aqueous dispersion of colored particles includes a polymer having at least a unit of a monomer derived from a dye having a polymerizable unsaturated group. The monomer derived from the dye is preferably derived from the compound represented by General Formula (1) below: where Dye represents a dye residue, R1 represents a hydrogen atom or a methyl group, Y2 represents —O— or —NR10—, where R10 represents a hydrogen atom or an alkyl group, A1 represents an alkylene group which is unsubstituted or substituted by at least one group selected from —OCO—, —COO—, —NHCONH—, and the like in the chain thereof and/or at the terminal thereof, and/or a hydroxy group.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: August 8, 2023
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hisato Haga, Tetsuji Murase, Sho Shibusawa, Tomoaki Horie
  • Publication number: 20210071006
    Abstract: Provided is an aqueous dispersion of colored particles suitable for colorants for writing instrument inks, inkjet inks, painting materials, aqueous coatings, and the like. The aqueous dispersion of colored particles includes a polymer having at least a unit of a monomer derived from a dye having a polymerizable unsaturated group. The monomer derived from the dye is preferably derived from the compound represented by General Formula (1) below: where Dye represents a dye residue, R1 represents a hydrogen atom or a methyl group, Y2 represents —O— or —NR10—, where R10 represents a hydrogen atom or an alkyl group, A1 represents an alkylene group which is unsubstituted or substituted by at least one group selected from —OCO—, —COO—, —NHCONH—, and the like in the chain thereof and/or at the terminal thereof, and/or a hydroxy group.
    Type: Application
    Filed: December 11, 2018
    Publication date: March 11, 2021
    Applicants: MITSUBISHI PENCIL COMPANY, LIMITED, FUJIFILM WAKO PURE CHEMICAL CORPORATION
    Inventors: Hisato HAGA, Tetsuji MURASE, Sho SHIBUSAWA, Tomoaki HORIE
  • Patent number: 10913855
    Abstract: Quenchers of the related art do not have a quenching ability high enough to sufficiently inhibit the emission of fluorescence from fluorescence compounds. Therefore, the present invention aims to provide a quencher which can sufficiently quench the fluorescence from fluorescent compounds including xanthene-based dyes. The present invention relates to a quencher formed of a compound represented by the following general formula (1), and the like.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: February 9, 2021
    Assignee: FUJIFILM Wako Pure Chemical Corporation
    Inventors: Katsufumi Suzuki, Tetsuji Murase, Shigeaki Imazeki
  • Patent number: 10696898
    Abstract: A reverse photochromic compound of the related art has difficulty in sensing light with a wavelength of 600 nm or greater in a visible light region which has been used for medical applications. Therefore, an object of the present invention is to provide a reverse photochromic compound and a polymer which have a high sensitivity to light having a wavelength of 600 nm or greater. The present invention relates to a compound and the like represented by the following general formula (1).
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 30, 2020
    Assignees: FUJIFILM Wako Pure Chemical Corporation, NIHON UNIVERSITY
    Inventors: Ryuzi Katoh, Masami Enoki, Kazuki Nemoto, Katsufumi Suzuki, Tetsuji Murase, Shigeaki Imazeki
  • Publication number: 20190382654
    Abstract: A reverse photochromic compound of the related art has difficulty in sensing light with a wavelength of 600 nm or greater in a visible light region which has been used for medical applications. Therefore, an object of the present invention is to provide a reverse photochromic compound and a polymer which have a high sensitivity to light having a wavelength of 600 nm or greater. The present invention relates to a compound and the like represented by the following general formula (1).
    Type: Application
    Filed: January 31, 2018
    Publication date: December 19, 2019
    Inventors: Ryuzi KATOH, Masami ENOKI, Kazuki NEMOTO, Katsufumi SUZUKI, Tetsuji MURASE, Shigeaki IMAZEKI
  • Patent number: 10377713
    Abstract: A quencher is disclosed having a compound represented by the following general formula (1): wherein R5 each independently represent a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an amino group having a substituent or not having a substituent, a hydroxy group, an aryl group, an aryloxy group, or an arylalkyl group; R6 represents a group having a polymerizable unsaturated group, a hydroxy group, or the like; Y1 represents an oxygen atom, or the like; An? represents an anion; Ar1 represents a specific ring structure; * and ** represent binding positions; Ar2 represents a benzene ring, a naphthalene ring, or an anthracene ring; n1 represents a specific integer; and the following structure (1-10) in the general formula (1) is an asymmetric structure; (wherein R5, Y1, Ar1, Ar2, n1, * and ** are the same as described above.).
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: August 13, 2019
    Assignee: FUJIFILM WAKO PURE CHEMICAL CORPORATION
    Inventors: Katsufumi Suzuki, Yoshihisa Tsurumi, Kei Kawano, Shigeaki Imazeki, Tetsuji Murase
  • Publication number: 20190233651
    Abstract: Quenchers of the related art do not have a quenching ability high enough to sufficiently inhibit the emission of fluorescence from fluorescence compounds. Therefore, the present invention aims to provide a quencher which can sufficiently quench the fluorescence from fluorescent compounds including xanthene-based dyes. The present invention relates to a quencher formed of a compound represented by the following general formula (1), and the like.
    Type: Application
    Filed: June 22, 2017
    Publication date: August 1, 2019
    Inventors: Katsufumi SUZUKI, Tetsuji MURASE, Shigeaki IMAZEKI
  • Publication number: 20170342031
    Abstract: A quencher is disclosed having a compound represented by the following general formula (1): wherein R5 each independently represent a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an amino group having a substituent or not having a substituent, a hydroxy group, an aryl group, an aryloxy group, or an arylalkyl group; R6 represents a group having a polymerizable unsaturated group, a hydroxy group, or the like; Y1 represents an oxygen atom, or the like; An? represents an anion; Ar1 represents a specific ring structure; * and ** represent binding positions; Ar2 represents a benzene ring, a naphthalene ring, or an anthracene ring; n1 represents a specific integer; and the following structure (1-10) in the general formula (1) is an asymmetric structure; (wherein R5, Y1, Ar1, Ar2, n1, * and ** are the same as described above.).
    Type: Application
    Filed: December 18, 2015
    Publication date: November 30, 2017
    Applicant: Wako Pure Chemical Industries, Ltd.
    Inventors: Katsufumi Suzuki, Yoshihisa Tsurumi, Kei Kawano, Shigeaki Imazeki, Tetsuji Murase
  • Patent number: 7760284
    Abstract: A liquid crystal device includes a liquid crystal panel; light sources; a light guide plate, opposed to the light sources, for guiding light emitted from the light sources to the liquid crystal panel; a flexible printed circuit board electrically connected to the liquid crystal panel; and a housing accommodating the liquid crystal panel and the light guide plate. The flexible printed circuit board is fixed to the rear face of the light guide plate in such a state that the flexible printed circuit board is curved. The liquid crystal panel is fixed to the housing with a light-shielding double-faced tape placed outside a display region including a sub-region containing the light sources. The light sources are spaced from the light-shielding double-faced tape with an adhesion-preventing member disposed therebetween or adhesion-preventing treatment is performed.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: July 20, 2010
    Assignee: Epson Imaging Devices Corporation
    Inventor: Tetsuji Murase
  • Publication number: 20070222911
    Abstract: A liquid crystal device includes a liquid crystal panel; light sources; a light guide plate, opposed to the light sources, for guiding light emitted from the light sources to the liquid crystal panel; a flexible printed circuit board electrically connected to the liquid crystal panel; and a housing accommodating the liquid crystal panel and the light guide plate. The flexible printed circuit board is fixed to the rear face of the light guide plate in such a state that the flexible printed circuit board is curved. The liquid crystal panel is fixed to the housing with a light-shielding double-faced tape placed outside a display region including a sub-region containing the light sources. The light sources are spaced from the light-shielding double-faced tape with an adhesion-preventing member disposed therebetween or adhesion-preventing treatment is performed.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 27, 2007
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventor: Tetsuji MURASE