Patents by Inventor Shinjiro Okada

Shinjiro Okada 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: 20200259106
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: JUN KAMATANI, MASASHI HASHIMOTO, SATOSHI IGAWA, SHINJIRO OKADA
  • Patent number: 10684526
    Abstract: An electrochromic element, which includes a pair of electrodes and an electrochromic layer disposed between the electrodes. The electrochromic layer contains at least one of two or more kinds of anode electrochromic materials, or two or more kinds of cathode electrochromic materials. All of one of the anode electrochromic materials and the cathode electrochromic materials have an equal molecular length, or have a molecular length ratio of (large molecular length)/(small molecular length) of 1.4 or less, the electrochromic element being such that even when a driving environment temperature changes, its gradation can be controlled under a state in which its absorption spectrum is retained.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 16, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Yamamoto, Shinjiro Okada, Kenji Yamada, Wataru Kubo
  • Publication number: 20190348618
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Inventors: JUN KAMATANI, MASASHI HASHIMOTO, SATOSHI IGAWA, SHINJIRO OKADA
  • Patent number: 10429714
    Abstract: A driver for an electrochromic element is configured to adjust the transmittance of a solution-type electrochromic element to allow the element to display a tone. The element has a pair of electrodes and at least one organic electrochromic material mixed between the electrodes. The driver has an adjusting controller configured to adjust the transmittance of the element. The adjusting controller has controller A and controller B. Controller A is configured to saturate a change in the transmittance of the element to an initial state by applying the voltage which resets the element to the initial state. Controller B is configured to control the tone of the element by applying the voltage which adjusts the transmittance of the element following controller A.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Yamamoto, Shinjiro Okada
  • Patent number: 10372005
    Abstract: Provided is an organic electrochromic device which has a high response speed and is excellent in durability even when a large current is flowed transiently, in which: an electrochromic layer arranged between a pair of electrodes contains an organic electrochromic material, a redox substance, and a solvent; the organic electrochromic material and the redox substance are each a material to be reversibly subjected to a redox reaction; and a potential at which the redox substance is oxidized (or reduced) is present between a potential at which the organic electrochromic material is reversibly oxidized (or reduced) and a potential at which the organic electrochromic material is irreversibly oxidized (or reduced).
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 6, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Wataru Kubo, Shinjiro Okada, Kenji Yamada
  • Patent number: 10367156
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: July 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, Shinjiro Okada
  • Publication number: 20190049813
    Abstract: An electrochromic element, which includes a pair of electrodes and an electrochromic layer disposed between the electrodes. The electrochromic layer contains at least one of two or more kinds of anode electrochromic materials, or two or more kinds of cathode electrochromic materials. All of one of the anode electrochromic materials and the cathode electrochromic materials have an equal molecular length, or have a molecular length ratio of (large molecular length)/(small molecular length) of 1.4 or less, the electrochromic element being such that even when a driving environment temperature changes, its gradation can be controlled under a state in which its absorption spectrum is retained.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Inventors: Jun Yamamoto, Shinjiro Okada, Kenji Yamada, Wataru Kubo
  • Patent number: 10151958
    Abstract: An electrochromic element, includes: a pair of electrodes (3, 5); and an electrochromic layer (7) disposed between the pair of electrodes (3, 5), the electrochromic element being controlled in transmittance by pulse width modulation, in which: the electrochromic layer (7) contains at least one of two or more kinds of anode electrochromic materials, or two or more kinds of cathode electrochromic materials; and all of one of the anode electrochromic materials and the cathode electrochromic materials have an equal molecular length, or have a molecular length ratio of (large molecular length)/(small molecular length) of 1.4 or less, the electrochromic element being such that even when a driving environment temperature changes, its gradation can be controlled under a state in which its absorption spectrum is retained.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 11, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Yamamoto, Shinjiro Okada, Kenji Yamada, Wataru Kubo
  • Publication number: 20180342685
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 29, 2018
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, I, Shinjiro Okada
  • Patent number: 10069089
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, I, Shinjiro Okada
  • Publication number: 20180180964
    Abstract: A driver for an electrochromic element is configured to adjust the transmittance of a solution-type electrochromic element to allow the element to display a tone. The element has a pair of electrodes and at least one organic electrochromic material mixed between the electrodes. The driver has an adjusting controller configured to adjust the transmittance of the element. The adjusting controller has controller A and controller B. Controller A is configured to saturate a change in the transmittance of the element to an initial state by applying the voltage which resets the element to the initial state. Controller B is configured to control the tone of the element by applying the voltage which adjusts the transmittance of the element following controller A.
    Type: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Inventors: Jun Yamamoto, Shinjiro Okada
  • Patent number: 9977306
    Abstract: The present invention provides an electrochromic device including a pair of electrodes and an electrochromic layer disposed between the pair of electrodes and containing different electrochromic materials having the same polarity, wherein in the case where two materials are selected from the different electrochromic materials having the same polarity in descending order of maximum absorbance in a color-display mode of the electrochromic layer and where the diffusion coefficients of the molecules of the two materials are compared with each other in the color-display mode, a smaller diffusion coefficient D2min, a larger diffusion coefficient D2max, and maximum absorbance H2 of the molecules of the electrochromic material having the diffusion coefficient D2max in the color-display mode satisfy Formula (5). 1?D2max/D2min?(1+0.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 22, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Wataru Kubo, Shinjiro Okada, Kenji Yamada
  • Patent number: 9969931
    Abstract: An electrochromic composition has an anodic electrochromic compound and a cathodic electrochromic compound, in which the anodic electrochromic compound is represented by General Formula [1] and the cathodic electrochromic compound is represented by General Formula [2] In General Formula 1, A1 to A4 represent substituents, R1 and R2, and R20 and R21 represent a hydrogen atom or a substituent. n is an integer of 1 to 5. X represents a thiophene derivative and Y- represents an anion.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 15, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenji Yamada, Shinjiro Okada, Jun Yamamoto
  • Patent number: 9946137
    Abstract: Potential non-uniformity in a surface of an electrode in an electrochromic element is improved during coloring and color erasing. The electrochromic element includes a pair of transparent electrodes and an electrochromic layer placed between the transparent electrodes. Each of the transparent electrodes includes an end portion having an electric supply portion. The electric supply portions face each other. The surface resistivity of each of the transparent electrodes increases with the increase of the distance from a corresponding one of the electric supply portions. The potential of the transparent electrodes is such that the difference between the maximum and minimum potentials in a surface of each transparent electrode is less than or equal to a predetermined value.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 17, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuya Miyazaki, Shinjiro Okada
  • Patent number: 9933681
    Abstract: A driver for an electrochromic element is configured to adjust the transmittance of a solution-type electrochromic element to allow the element to display a tone. The element has a pair of electrodes and at least one organic electrochromic material mixed between the electrodes. The driver has an adjusting controller configured to adjust the transmittance of the element. The adjusting controller has controller A and controller B. Controller A is configured to saturate a change in the transmittance of the element to an initial state by applying the voltage which resets the element to the initial state. Controller B is configured to control the tone of the element by applying the voltage which adjusts the transmittance of the element following controller A.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Yamamoto, Shinjiro Okada
  • Publication number: 20180011386
    Abstract: An electrochromic element, includes: a pair of electrodes (3, 5); and an electrochromic layer (7) disposed between the pair of electrodes (3, 5), the electrochromic element being controlled in transmittance by pulse width modulation, in which: the electrochromic layer (7) contains at least one of two or more kinds of anode electrochromic materials, or two or more kinds of cathode electrochromic materials; and all of one of the anode electrochromic materials and the cathode electrochromic materials have an equal molecular length, or have a molecular length ratio of (large molecular length)/(small molecular length) of 1.4 or less, the electrochromic element being such that even when a driving environment temperature changes, its gradation can be controlled under a state in which its absorption spectrum is retained.
    Type: Application
    Filed: March 30, 2016
    Publication date: January 11, 2018
    Inventors: Jun Yamamoto, Shinjiro Okada, Kenji Yamada, Wataru Kubo
  • Patent number: 9804470
    Abstract: An organic compound having the following general formula [1]: wherein A1 and A2 independently denote a hydrogen atom or a substituent, R7 denotes a hydrogen atom or a substituent, R2 to R5 denote a substituent, R1 and R6 independently denote a hydrogen atom or a substituent, and m is 2 or 3.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: October 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Yamada, Shinjiro Okada
  • Publication number: 20170242314
    Abstract: Provided is an organic electrochromic device which has a high response speed and is excellent in durability even when a large current is flowed transiently, in which: an electrochromic layer arranged between a pair of electrodes contains an organic electrochromic material, a redox substance, and a solvent; the organic electrochromic material and the redox substance are each a material to be reversibly subjected to a redox reaction; and a potential at which the redox substance is oxidized (or reduced) is present between a potential at which the organic electrochromic material is reversibly oxidized (or reduced) and a potential at which the organic electrochromic material is irreversibly oxidized (or reduced).
    Type: Application
    Filed: November 4, 2015
    Publication date: August 24, 2017
    Inventors: Wataru Kubo, Shinjiro Okada, Kenji Yamada
  • Publication number: 20170114274
    Abstract: An electrochromic composition has an anodic electrochromic compound and a cathodic electrochromic compound, in which the anodic electrochromic compound is represented by General Formula [1] and the cathodic electrochromic compound is represented by General Formula [2] In General Formula 1, A1 to A4 represent substituents, R1 and R2, and R20 and R21 represent a hydrogen atom or a substituent. n is an integer of 1 to 5. X represents a thiophene derivative and Y- represents an anion.
    Type: Application
    Filed: June 30, 2015
    Publication date: April 27, 2017
    Inventors: Kenji Yamada, Shinjiro Okada, Jun Yamamoto
  • Patent number: 9611233
    Abstract: The present invention provides an organic compound to be used in an electrochromic device. The organic compound has excellent oxidation-reduction repeating characteristics and shows high transparency in the bleached state without showing light absorption in the visible light region. The organic compound has a structure represented by Formula [1] according to claim 1. In Formula [1], A1 and A2 represent substituents, and at least one of A1 and A2 is an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, or an optionally substituted aryl group. R1 represents a substituent, X represents an electrochromic portion, and n is an integer of 1 to 3.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 4, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Yamada, Shinjiro Okada