Patents by Inventor Kiyoshi Fukusaka

Kiyoshi Fukusaka 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: 20180203175
    Abstract: A triazole compound having a structure represented by the following Formula (1.2): wherein Z represents a structure represented by the following Formula (1.2a), q is 2 or 3, and at least two structures Z bonded to the benzene ring of Formula (1.2) and are located in the ortho- or meta-position relative to each other: wherein R10 represents a hydrogen atom, an alkyl group, or an alkoxy group, p represents an integer of 1 to 5, and * represents a position at which the structure is bonded to the benzene ring.
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi KIUCHI, Takatugu SUZUKI, Kiyoshi FUKUSAKA, Rie FUJISAWA, Hiroshi KITA, Issei NAKAHARA
  • Patent number: 10012777
    Abstract: The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: July 3, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka, Rie Fujisawa, Hiroshi Kita, Issei Nakahara
  • Patent number: 9720140
    Abstract: Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Ro550 within the range of 120 to 160 nm measured at a wavelength of 550 nm under an atmosphere of a temperature of 23° C. and a relative humidity of 55%, and a ratio Ro450/Ro550 within the range of 0.65 to 0.99, Ro450/Ro550 being a ratio of an in-plane retardation Ro450 measured at a wavelength of 450 nm to the in-plane retardation Ro550 measured at a wavelength of 550 nm, wherein, a substituent of a glucose skeleton in the cellulose derivative satisfies the requirements (a) and (b) which are described in the specification, and the optical film contains a compound A satisfying the following condition defined by Expression (a1) which is described in the specification.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: August 1, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Rie Fujisawa, Hiroyoshi Kiuchi, Kiyoshi Fukusaka, Takatugu Suzuki, Hiroshi Kita
  • Publication number: 20170010396
    Abstract: An optical film includes an optical functional layer on a supporting body containing a cellulose derivative as a major component. The optical functional layer is disposed on at least one surface of a film-like supporting body. The supporting body contains a cellulose derivative having an enhanced breaking elongation, and the supporting body has a breaking elongation of 110% or more of the breaking elongation of a supporting body containing a cellulose derivative whose breaking elongation is not enhanced.
    Type: Application
    Filed: January 23, 2015
    Publication date: January 12, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Hirokazu Koyama, Hiroshi Kita, Kiyoshi Fukusaka, Hiroyoshi Kiuchi
  • Publication number: 20160070030
    Abstract: Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Ro550 within the range of 120 to 160 nm measured at a wavelength of 550 nm under an atmosphere of a temperature of 23° C. and a relative humidity of 55%, and a ratio Ro450/Ro550 within the range of 0.65 to 0.99, Ro450/Ro550 being a ratio of an in-plane retardation Ro450 measured at a wavelength of 450 nm to the in-plane retardation Ro550 measured at a wavelength of 550 nm, wherein, a substituent of a glucose skeleton in the cellulose derivative satisfies the requirements (a) and (b) which are described in the specification, and the optical film contains a compound A satisfying the following condition defined by Expression (a1) which is described in the specification.
    Type: Application
    Filed: April 16, 2014
    Publication date: March 10, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventors: Rie FUJISAWA, Hiroyoshi KIUCHI, Kiyoshi FUKUSAKA, Takatugu SUZUKI, Hiroshi KITA
  • Publication number: 20150338563
    Abstract: The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.
    Type: Application
    Filed: January 9, 2014
    Publication date: November 26, 2015
    Applicant: Konica Minolta, Inc
    Inventors: Hiroyoshi KIUCHI, Takatugu SUZUKI, Kiyoshi FUKUSAKA, Rie FUJISAWA, Hiroshi KITA, Issei NAKAHARA
  • Patent number: 9151870
    Abstract: The purpose of the present invention is to provide an optical film having a large phase difference value, small moisture-induced fluctuation in the phase difference value, small photoelastic coefficient and excellent bondability with a polarizer. The optical film includes a cellulose ester (A) which satisfy formulae (1) and (2) below and a vinyl-based polymer (B). A content ratio of the cellulose ester (A) and the vinyl-based polymer (B) is from 95:5 to 50:50 by mass, the vinyl-based polymer (B) is composed of a non-aromatic vinyl-based monomer having a solubility parameter of 17.5 (MPa1/2) or larger and smaller than 20.0 (MPa1/2) and a weight average molecular weight of the vinyl-based polymer (B) is from 500 to 10,000: where 1.0?X+?Yi<2.0??formula (1) 4.0?2×X+?(ni×Yi)<6.0.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 6, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka
  • Patent number: 8936840
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Publication number: 20130335685
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Application
    Filed: March 9, 2012
    Publication date: December 19, 2013
    Applicant: KONICA MINOLTA , INC.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Publication number: 20130222741
    Abstract: The purpose of the present invention is to provide an optical film having a large phase difference value, small moisture-induced fluctuation in the phase difference value, small photoelastic coefficient and excellent bondability with a polarizer. The optical film includes a cellulose ester (A) which satisfy formulae (1) and (2) below and a vinyl-based polymer (B). A content ratio of the cellulose ester (A) and the vinyl-based polymer (B) is from 95:5 to 50:50 by mass, the vinyl-based polymer (B) is composed of a non-aromatic vinyl-based monomer having a solubility parameter of 17.5 (MPa1/2) or larger and smaller than 20.0 (MPa1/2) and a weight average molecular weight of the vinyl-based polymer (B) is from 500 to 10,000: where 1.0?X+?Yi<2.0??formula (1) 4.0?2×X+?(ni×Yi)<6.0.
    Type: Application
    Filed: December 2, 2011
    Publication date: August 29, 2013
    Applicant: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka
  • Patent number: 7455961
    Abstract: Disclosed is a photothermographic material comprising on support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (2).
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: November 25, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Rie Sakuragi, Osamu Ishige, Kiyoshi Fukusaka
  • Publication number: 20080085482
    Abstract: Disclosed is a photothermographic material comprising on support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (2).
    Type: Application
    Filed: September 21, 2007
    Publication date: April 10, 2008
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Rie SAKURAGI, Osamu ISHIGE, Kiyoshi FUKUSAKA
  • Publication number: 20070212656
    Abstract: A photothermographic material is disclosed, comprising on at least one side of a support a light-sensitive silver halide, wherein the photothermographic material further comprises a compound represented by formula (1) and a compound represented by formula (2).
    Type: Application
    Filed: March 5, 2007
    Publication date: September 13, 2007
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventor: Kiyoshi FUKUSAKA
  • Patent number: 7235351
    Abstract: A thermally developable photographic material containing a support, provided thereon: (i) a photosensitive layer containing photosensitive silver halide particles, and (ii) a layer containing at least one represented by formula below on one or both surfaces of the support
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: June 26, 2007
    Inventors: Kiyoshi Fukusaka, Osamu Ishige, Rie Sakuragi
  • Patent number: 7202018
    Abstract: A silver salt photothermographic material is disclosed, comprising light-insensitive organic silver salt grains and light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the reducing agent is a compound represented by the following formula (1) and the light-sensitive layer further comprises a hindered phenol represented by the following formula (2)
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: April 10, 2007
    Assignee: Konica Corporation
    Inventors: Kazuaki Nakamura, Ryohei Iwamoto, Norio Miura, Kiyoshi Fukusaka
  • Publication number: 20070037103
    Abstract: A photothermographic material is disclosed, comprising on at least one side of a support a light-sensitive layer containing a light-sensitive silver halide and a light-insensitive organic silver salt, wherein the photothermographic material further comprises at least a reducing agent represented by the following formula (1):
    Type: Application
    Filed: July 27, 2006
    Publication date: February 15, 2007
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Kiyoshi FUKUSAKA, Osamu ISHIGE, Takeshi KURATA
  • Patent number: 7138224
    Abstract: A photothermographic material containing a support having on one side of the support a photosensitive layer containing: photosensitive silver halide grains; and a compound represented by Formula (1) or Formula (2): wherein the symbols in Formulas (1) and (2) are indicated in the specification.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: November 21, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kiyoshi Fukusaka, Osamu Ishige, Rie Sakuragi
  • Publication number: 20060228656
    Abstract: A thermally developable photographic material containing a support, provided thereon: (i) a photosensitive layer containing photosensitive silver halide particles, and (ii) a layer containing at least one represented by formula below on one or both surfaces of the support.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 12, 2006
    Inventors: Kiyoshi Fukusaka, Osamu Ishige, Rie Sakuragi
  • Publication number: 20060166150
    Abstract: A photothermographic materials, containing a support having thereon an image forming layer containing, light photosensitive silver halide grains; a binder; a reducing agent for silver ions represented by Formula (1); and a leuco dye represented by Formula (2):
    Type: Application
    Filed: January 18, 2006
    Publication date: July 27, 2006
    Inventors: Rie Sakuragi, Osamu Ishige, Kiyoshi Fukusaka
  • Publication number: 20060078834
    Abstract: A photothermographic material containing a support having on one side of the support a photosensitive layer containing: photosensitive silver halide grains; and a compound represented by Formula (1) or Formula (2): Formula (1) Formula (2) wherein the symbols in Formulas (1) and (2) are indicated in the specification.
    Type: Application
    Filed: September 29, 2005
    Publication date: April 13, 2006
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Kiyoshi Fukusaka, Osamu Ishige, Rie Sakuragi