Patents by Inventor Mayumi Kuroko

Mayumi Kuroko 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: 20200270456
    Abstract: A silicon-containing resin composition with which it is possible to form a silica-based coating film in which generation of cracks is minimized, a method for forming a silica-based coating film using the composition, and a crack-free silica-based coating film formed using the composition. The silicon-containing resin composition includes a silicon-containing resin and a solvent, in which one or more of siloxane resins and polysilanes is used as the silicon-containing resin, and the solvent contains a cycloalkyl acetate having a specific structure.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 27, 2020
    Inventors: Hiroki Chisaka, Mayumi Kuroko, Kunihiro Noda, Dai Shiota
  • Patent number: 10689514
    Abstract: A silicon-containing resin composition with which it is possible to form a silica-based coating film in which generation of cracks is minimized, a method for forming a silica-based coating film using the silicon-containing resin composition, and a crack-free silica-based coating film formed using the silicon-containing resin composition. The silicon-containing resin composition includes a silicon-containing resin and a solvent, in which one or more of siloxane resins and polysilanes is used as the silicon-containing resin, and the solvent contains a cycloalkyl acetate having a specific structure.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 23, 2020
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Hiroki Chisaka, Mayumi Kuroko, Kunihiro Noda, Dai Shiota
  • Patent number: 10416560
    Abstract: A coloring agent dispersion which contains a satisfactorily dispersed pigment, and results in a photosensitive resin composition capable of forming a cured film when mixed in the photosensitive resin composition; a photosensitive resin composition containing the coloring agent dispersion; a cured product of the composition; an organic EL element provided with the cured product; a method for forming a pattern using the composition; and a method for producing a photosensitive resin composition using the dispersion. In a coloring agent dispersion including a coloring agent which contains a pigment and a dispersant, a dispersant containing a silsesquioxane compound of a specific structure is used.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: September 17, 2019
    Assignee: TOKYO OHKA KOGYO CO, LTD.
    Inventors: Naozumi Matsumoto, Yasuhide Ohuchi, Tatsuro Ishikawa, Mayumi Kuroko, Dai Shiota
  • Patent number: 10322989
    Abstract: A transparent body production method that includes subjecting the compound represented by formula (1) to heating at a temperature equal to or greater than the melting point of said compound. In formula (1), each of W1 and W2 is the group represented by formula (2) in which the ring Z is an aromatic hydrocarbon ring, X is a single bond or —S—, R1 is a single bond or an alkylene group having 1-4 carbon atoms, R2 is a specific substituent, and m is an integer of 0 or higher, the group represented by formula (4) is —OH— or a (meth)acryloyloxy group, each of the rings Y1 and Y2 is an aromatic hydrocarbon ring, R is a single bond or a specific divalent group, each of R3a and R3b is —CN, a halogen group, or a monovalent hydrocarbon group, and each of n1 and n2 is an integer of 0-4.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 18, 2019
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Dai Shiota, Kunihiro Noda, Hiroki Chisaka, Mayumi Kuroko
  • Publication number: 20180187010
    Abstract: A silicon-containing resin composition with which it is possible to form a silica-based coating film in which generation of cracks is minimized, a method for forming a silica-based coating film using the silicon-containing resin composition, and a crack-free silica-based coating film formed using the silicon-containing resin composition. The silicon-containing resin composition includes a silicon-containing resin and a solvent, in which one or more of siloxane resins and polysilanes is used as the silicon-containing resin, and the solvent contains a cycloalkyl acetate having a specific structure.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 5, 2018
    Inventors: Hiroki CHISAKA, Mayumi KUROKO, Kunihiro NODA, Dai SHIOTA
  • Publication number: 20180113383
    Abstract: A coloring agent dispersion which contains a satisfactorily dispersed pigment, and results in a photosensitive resin composition capable of forming a cured film when mixed in the photosensitive resin composition; a photosensitive resin composition containing the coloring agent dispersion; a cured product of the composition; an organic EL element provided with the cured product; a method for forming a pattern using the composition; and a method for producing a photosensitive resin composition using the dispersion. In a coloring agent dispersion including a coloring agent which contains a pigment and a dispersant, a dispersant containing a silsesquioxane compound of a specific structure is used.
    Type: Application
    Filed: October 24, 2017
    Publication date: April 26, 2018
    Inventors: Naozumi MATSUMOTO, Yasuhide OHUCHI, Tatsuro ISHIKAWA, Mayumi KUROKO, Dai SHIOTA
  • Publication number: 20170275223
    Abstract: A transparent body production method that includes subjecting the compound represented by formula (1) to heating at a temperature equal to or greater than the melting point of said compound. In formula (1), each of W1 and W2 is the group represented by formula (2) in which the ring Z is an aromatic hydrocarbon ring, X is a single bond or —S—, R1 is a single bond or an alkylene group having 1-4 carbon atoms, R2 is a specific substituent, and m is an integer of 0 or higher, the group represented by formula (4) is —OH— or a (meth)acryloyloxy group, each of the rings Y1 and Y2 is an aromatic hydrocarbon ring, R is a single bond or a specific divalent group, each of R3a and R3b is —CN, a halogen group, or a monovalent hydrocarbon group, and each of n1 and n2 is an integer of 0-4.
    Type: Application
    Filed: September 25, 2015
    Publication date: September 28, 2017
    Inventors: Dai SHIOTA, Kunihiro NODA, Hiroki CHISAKA, Mayumi KUROKO
  • Publication number: 20160170302
    Abstract: A novel compound suitable for obtaining a negative-type photosensitive resin composition capable of forming a pattern having favorable adhesiveness at a low light exposure. The compound is represented by the following formula (1). In the formula, R1 and R2 each independently represents a hydrogen atom or an organic group, but at least one represents an organic group. R1 and R2 may be bonded to form a ring structure and may contain a hetero atom bond. R3 represents a single bond or an organic group. R4 to R9 each independently represents a hydrogen atom, an organic group, etc., but R6 and R7 are not hydroxyl groups. R10 represents a hydrogen atom or an organic group.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 16, 2016
    Inventors: Dai SHIOTA, Mayumi KUROKO, Kunihiro NODA, Yoshinori TADOKORO, Yasuyuki AKAI, Hideyuki TAKAI
  • Patent number: 9244346
    Abstract: A negative-type photosensitive resin composition capable of forming a pattern having favorable adhesiveness at a low light exposure; a pattern forming method using the resin composition; a cured film, an insulating film, a color filter formed using resin composition; and a display device provided with the cured film, insulating film, or color filter. The resin composition contains a compound represented by the following formula (1). In the formula, R1 and R2 each independently indicate a hydrogen atom or an organic group, but at least one indicates an organic group. R1 and R2 may be bonded to form a ring structure and may contain a hetero atom bond. R3 indicates a single bond or an organic group. R4 to R9 each independently indicate a hydrogen atom, an organic group, etc., but R6 and R7 are never hydroxyl groups. R10 indicates a hydrogen atom or an organic group.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: January 26, 2016
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Dai Shiota, Mayumi Kuroko, Kunihiro Noda, Yoshinori Tadokoro
  • Patent number: 8889323
    Abstract: A photosensitive resin composition having excellent storage stability which can form a high precision pattern upon a low amount of exposure; a method of forming a pattern including a polysiloxane coating with the photosensitive resin composition; and an electronic component including a pattern including a polysiloxane coating formed with the photosensitive resin composition. A compound which generates an imidazole compound having a predetermined structure by light is added to a photosensitive resin composition including one or more hydrolyzable silane compounds, hydrolysates of the hydrolyzable silane compounds and condensates thereof and a photo-base generator or a photo-acid generator.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 18, 2014
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Dai Shiota, Mayumi Kuroko, Tatsuro Ishikawa
  • Publication number: 20140231729
    Abstract: A negative-type photosensitive resin composition capable of forming a pattern having favorable adhesiveness at a low light exposure; a pattern forming method using the resin composition; a cured film, an insulating film, a color filter formed using resin composition; and a display device provided with the cured film, insulating film, or color filter. The resin composition contains a compound represented by the following formula (1). In the formula, R1 and R2 each independently indicate a hydrogen atom or an organic group, but at least one indicates an organic group. R1 and R2 may be bonded to form a ring structure and may contain a hetero atom bond. R3 indicates a single bond or an organic group. R4 to R9 each independently indicate a hydrogen atom, an organic group, etc., but R6 and R7 are never hydroxyl groups. R10 indicates a hydrogen atom or an organic group.
    Type: Application
    Filed: June 15, 2012
    Publication date: August 21, 2014
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Dai Shiota, Mayumi Kuroko, Kunihiro Noda, Yoshinori Tadokoro
  • Publication number: 20140221649
    Abstract: A novel compound suitable for obtaining a negative-type photosensitive resin composition capable of forming a pattern having favorable adhesiveness at a low light exposure. The compound is represented by the following formula (1). In the formula, R1 and R2 each independently indicate a hydrogen atom or an organic group, but at least one indicates an organic group. R1 and R2 may be bonded to form a ring structure and may contain a hetero atom bond. R3 indicates a single bond or an organic group. R4 to R9 each independently indicate a hydrogen atom, an organic group, etc., but R6 and R7 are never hydroxyl groups. R10 indicates a hydrogen atom or an organic group.
    Type: Application
    Filed: June 15, 2012
    Publication date: August 7, 2014
    Applicants: DAICEL CORPORATION, TOKYO OHKA KOGYO CO., LTD.
    Inventors: Dai Shiota, Mayumi Kuroko, Kunihiro Noda, Yoshinori Tadokoro, Yasuyuki Akai, Hideyuki Takai
  • Publication number: 20140178808
    Abstract: A photosensitive resin composition having excellent storage stability which can form a high precision pattern upon a low amount of exposure; a method of forming a pattern including a polysiloxane coating with the photosensitive resin composition; and an electronic component including a pattern including a polysiloxane coating formed with the photosensitive resin composition. A compound which generates an imidazole compound having a predetermined structure by light is added to a photosensitive resin composition including one or more hydrolyzable silane compounds, hydrolysates of the hydrolyzable silane compounds and condensates thereof and a photo-base generator or a photo-acid generator.
    Type: Application
    Filed: December 26, 2013
    Publication date: June 26, 2014
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Dai Shiota, Mayumi Kuroko, Tatsuro Ishikawa