Patents by Inventor Tetsuro Mitsui

Tetsuro Mitsui 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: 9070887
    Abstract: A photoelectric conversion device comprising an electrically conductive film, an organic photoelectric conversion film, and a transparent electrically conductive film, wherein the organic photoelectric conversion film contains a compound represented by the following formula (1) and an n-type organic semiconductor: wherein each of R1 and R2 independently represents a substituted aryl group, an unsubstituted aryl group, a substituted heteroaryl group or an unsubstituted heteroaryl group, each of R3 to R11 independently represents a hydrogen atom or a substituent provided that an acidic group is excluded, m represents 0 or 1, n represents an integer of 0 or more, R1 and R2, R3 and R4, R3 and R5, R5 and R6, R6 and R8, R7 and R8, R7 and R9, or R10 and R11 may be combined each other to form a ring, and when n is an integer of 2 or more, out of a plurality of R7's and R8's, a pair of R7's, a pair of R8's, or a pair of R7 and R8 may be combined each other to form a ring.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: June 30, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Katsuyuki Yofu, Kimiatsu Nomura, Mitsumasa Hamano, Tetsuro Mitsui
  • Patent number: 9035055
    Abstract: An organic compound and a photoelectric conversion device containing the organic compound are disclosed. The organic compound and device realize high photoelectric conversion efficiency, low dark current and high-speed responsivity. It has been found that when this organic compound and an n-type semiconductor are used in combination, high-speed responsivity can be realized while maintaining high heat resistance, an aspect of which has not been seen when the connection part between a donor part and an acceptor part is a phenylene group.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: May 19, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Mitsumasa Hamano, Katsuyuki Yofu, Tetsuro Mitsui, Kimiatsu Nomura
  • Patent number: 9012761
    Abstract: An organic photoelectric conversion material for a photoelectric conversion element is provided, the organic photoelectric conversion material represented by formula 1 and having a molecular weight of 250 or greater but not greater than 800: wherein, A represents an electron withdrawing atomic group; R1, R2 and R3 each independently represents a hydrogen atom or a substituent; L represents a divalent ? conjugated substituent; D represents an electron donating aromatic substituent; and X represents O, S, or N—Ra in which Ra represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: April 21, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tetsu Kitamura, Kimiatsu Nomura, Tetsuro Mitsui
  • Patent number: 9012762
    Abstract: A photoelectric conversion element is provided and includes: an electrically conductive thin layer; an organic photoelectric conversion layer; and a transparent electrically conductive thin layer. The organic photoelectric conversion layer contains: a compound represented by formula (I); and a fullerene or a fullerene derivative. Formula (I): In the formula, Z1 represents an atomic group necessary for forming a 5- or 6-membered ring, L1, L2 and L3 each independently represents an unsubstituted methine group or a substituted methine group, D1 represents an atomic group, and n represents an integer of 0 or more.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: April 21, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Kimiatsu Nomura, Mitsumasa Hamano, Katsuyuki Yofu
  • Patent number: 8994132
    Abstract: A photoelectric conversion element includes an insulating film, a first electrode, a light receiving layer, and a second electrode. The first electrode is formed on the insulating film and is made of titanium oxynitride. The light receiving layer is formed on the first electrode and includes an organic material. A composition of the first electrode just before forming the light receiving layer meets (1) a requirement that an amount of oxygen contained in the whole of the first electrode is 75 atm % or more of an amount of titanium, or (2) a requirement that in a range of from the substrate side of the first electrode to 10 nm or a range of from the substrate side of the first electrode to ? of the thickness of the first electrode, an amount of oxygen is 40 atm % or more of an amount of titanium.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: March 31, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Yuki Kuramoto
  • Patent number: 8933319
    Abstract: A photoelectric conversion element includes: an electrically conductive thin layer; an organic photoelectric conversion layer containing a compound having a partial structure represented by formula (I) and a fullerene or a fullerene derivative; and a transparent electrically conductive thin layer: X represents O, S or N—R10, R10 represents a hydrogen atom or a substituent, Rx and Ry represent a hydrogen atom or a substituent, with at least one representing an electron-withdrawing group, Rx and Ry may combine to form a ring, R represents a bond (—), a hydrogen atom or a substituent, with at least one being the bond, nr represents an integer of 1 to 4, R's may be the same or different when nr is 2 or more, and R's at the 2- and 3-positions or R's at the 5- and 6-positions may combine with each other to form a ring.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: January 13, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Kimiatsu Nomura, Tetsu Kitamura
  • Patent number: 8847208
    Abstract: Provided is a photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film, and an electrically conductive film, wherein the photoelectric conversion film contains a compound represented by the following formula (i): wherein each of R2 to R9 independently represents a hydrogen atom or a substituent, provided that each of at least two out of R3, R4, R7 and R8 independently represents an aryl group, a heterocyclic group or —N(Ra)(Rb), each of Ra and Rb independently represents a hydrogen atom or a substituent, and at least either Ra or Rb represents an aryl group or a heterocyclic group; and R1 represents an alkyl group, an aryl group or a heterocyclic group.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: September 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Kimiatsu Nomura, Katsuyuki Yofu
  • Patent number: 8841651
    Abstract: A photoelectric conversion element is provided and includes: a conductive thin layer; an organic photoelectric conversion layer including a compound represented by formula (I); and a transparent conductive thin layer, in this order: In the formula (I), X represents O, S or N—R10; Rx and Ry each independently represents a hydrogen atom or a substituent, at least one of Rx and Ry is an electron-withdrawing group, and Rx and Ry may be connected to each other to form a ring, provided that Rx and Ry do not represent a cyano group at the same time; R7 to R10 each independently represents a hydrogen atom or a substituent, and R8 and R9 may be connected to each other to form a ring; L represents a linking group comprising a conjugated bond; and D1 represents a group of atoms.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: September 23, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Kimiatsu Nomura, Kazumi Nii
  • Publication number: 20140239156
    Abstract: A photoelectric conversion element comprises a photoelectric conversion section that includes: a pair of electrodes; and a photoelectric conversion layer disposed between the pair of electrodes, wherein the photoelectric conversion section further comprises between one of the pair of electrodes and the photoelectric conversion layer a first charge-blocking layer that restrains injection of charges from the one of the electrodes into the photoelectric conversion layer when a voltage is applied to the pair of electrodes, and the first charge-blocking layer comprises a plurality of layers.
    Type: Application
    Filed: May 12, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Masayuki HAYASHI, Yoshiki MAEHARA, Tetsuro MITSUI
  • Publication number: 20140204259
    Abstract: The solid-state imaging device includes lower electrodes acting as pixel electrodes, an organic photoelectric conversion film formed on the lower electrodes and generating electric charge in response to received light, and a transparent upper electrode that are formed on a substrate having signal readout circuits. The organic photoelectric conversion film, a transition area having at least one of its film thickness and film quality undergone transition from a film thickness and film quality of an area corresponding to a pixel electrode area in which the lower electrodes have been formed is an area that starts from an outer edge of the organic photoelectric conversion film and ends at a point away from the outer edge by a distance of 200 ?m or less.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Tetsuro MITSUI, Takuro SUGIYAMA
  • Publication number: 20140054577
    Abstract: A photoelectric conversion element comprises a first photoelectric conversion part, the first photoelectric conversion part comprising: a pair of electrodes; and a photoelectric conversion film between the pair of electrodes, wherein the photoelectric conversion film comprises an organic photoelectric conversion material having an absorption peak in an infrared region of an absorption spectrum within a combined range of a visible region and the infrared region and generating an electric charge according to light absorbed, and the first photoelectric conversion part as a whole transmits 50% or more of light in the visible region.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuro MITSUI, Tetsu KITAMURA, Kimiatsu NOMURA, Toru HARADA
  • Patent number: 8637860
    Abstract: A photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film and an electrically conductive film in this order, wherein the photoelectric conversion film comprises a photoelectric conversion layer, and an electron blocking layer, wherein the electron blocking layer contains a compound represented by the specific formula.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: January 28, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kimiatsu Nomura, Eiji Fukuzaki, Tetsuro Mitsui
  • Patent number: 8614438
    Abstract: An organic photoelectric conversion device having: a first electrode; a second electrode opposing to the first electrode; and an organic material-containing photoelectric conversion layer provided between the first electrode and the second electrode, wherein an electron spin number of the photoelectric conversion layer is not more than 1.0×1015/cm3.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: December 24, 2013
    Assignee: Fujifilm Corporation
    Inventors: Tetsuro Mitsui, Takashi Komiyama, Takuro Sugiyama
  • Publication number: 20130299799
    Abstract: A photoelectric conversion device comprising an electrically conductive film, an organic photoelectric conversion film, and a transparent electrically conductive film, wherein the organic photoelectric conversion film contains a compound represented by the following formula (1) and an n-type organic semiconductor: wherein each of R1 and R2 independently represents a substituted aryl group, an unsubstituted aryl group, a substituted heteroaryl group or an unsubstituted heteroaryl group, each of R3 to R11 independently represents a hydrogen atom or a substituent provided that an acidic group is excluded, m represents 0 or 1, n represents an integer of 0 or more, R1 and R2, R3 and R4, R3 and R5, R5 and R6, R6 and R8, R7 and R8, R7 and R9, or R10 and R11 may be combined each other to form a ring, and when n is an integer of 2 or more, out of a plurality of R7's and R8's, a pair of R7's, a pair of R8's, or a pair of R7 and R8 may be combined each other to form a ring.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    Inventors: Katsuyuki YOFU, Kimiatsu NOMURA, Mitsumasa HAMANO, Tetsuro MITSUI
  • Patent number: 8525577
    Abstract: A photoelectric conversion device comprising an electrically conductive film, an organic photoelectric conversion film, and a transparent electrically conductive film, wherein the organic photoelectric conversion film contains a compound represented by the following formula (1) and an n-type organic semiconductor: wherein each of R1 and R2 independently represents a substituted aryl group, an unsubstituted aryl group, a substituted heteroaryl group or an unsubstituted heteroaryl group, each of R3 to R11 independently represents a hydrogen atom or a substituent provided that an acidic group is excluded, m represents 0 or 1, n represents an integer of 0 or more, R1 and R2, R3 and R4, R3 and R5, R5 and R6, R6 and R8, R7 and R8, R7 and R9, or R10 and R11 may be combined each other to form a ring, and when n is an integer of 2 or more, out of a plurality of R7's and R8's, a pair of R7's, a pair of R8's, or a pair of R7 and R8 may be combined each other to form a ring.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Katsuyuki Yofu, Kimiatsu Nomura, Mitsumasa Hamano, Tetsuro Mitsui
  • Patent number: 8513657
    Abstract: A photoelectric conversion element includes a pair of electrodes, a photoelectric conversion layer, a charge blocking layer, an intermediate layer. The photoelectric conversion layer contains an organic material between the electrodes. The charge blocking layer is disposed between the photoelectric conversion layer and one of the electrodes. The intermediate layer includes an organic compound disposed between the photoelectric conversion layer and the charge blocking layer and having a glass transition temperature of 200° C. or higher.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: August 20, 2013
    Assignee: Fujifilm Corporation
    Inventors: Hideyuki Suzuki, Tetsuro Mitsui
  • Patent number: 8513651
    Abstract: Provided is a photoelectric conversion device comprising an electrically conductive film, a photoelectric conversion film, and a transparent electrically conductive film, wherein the photoelectric conversion film contains a fullerene or a fullerene derivative and a photoelectric conversion material having an absorption spectrum satisfying at least either the following condition (A) or (B): ?M1<?L1 and ?M2<?L2??(A) ?M1<?L1 and ?|?M1??L1|>?|?M2??L2|??(B) wherein ?L1, ?L2, ?M1 and ?M2 are the wavelength at an absorption intensity of ½ of the maximum absorption intensity in the wavelength range of from 400 to 800 nm, each of ?L1 and ?L2 represents the wavelength in a chloroform solution spectrum when the photoelectric conversion material is dissolved in chloroform, and each of ?M1 and ?M2 represents the wavelength in a thin-film absorption spectrum of the photoelectric conversion material alone, provided that ?L1<?L2 and ?M1<?M2.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: August 20, 2013
    Assignee: Fujifilm Corporation
    Inventors: Tetsuro Mitsui, Kimiatsu Nomura, Mitsumasa Hamano
  • Patent number: 8471246
    Abstract: A photoelectric conversion device is provided, the photoelectric conversion device including: a pair of electrodes; a photoelectric conversion layer arranged between the pair of electrodes and containing an n-type organic semiconductor; and a charge blocking layer arranged between one of the pair of electrodes and the photoelectric conversion layer, the charge blocking layer being formed of a single layer or two or more layers, wherein a difference ?1 between ionization potential Ip of a layer of the charge blocking layer adjacent to the photoelectric conversion layer and electron affinity Ea of the n-type organic semiconductor is at least 1 eV; and the charge blocking layer has a gross thickness of at least 20 nm.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: June 25, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Hideyuki Suzuki, Tetsuro Mitsui, Diago Sawaki, Mitsumasa Hamano, Masayuki Hayashi
  • Patent number: 8436441
    Abstract: A photoelectric conversion device comprising a photoelectric conversion part including a first electrode layer, a second electrode layer and a photoelectric conversion layer provided between the first electrode layer and the second electrode layer, wherein light is made incident from an upper part of the second electrode layer into the photoelectric conversion layer; the photoelectric conversion layer generates a charge containing an electron and a hole corresponding to the incident light from the upper part of the second electrode layer; and the first electrode layer works as an electrode for extracting the hole.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: May 7, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuro Mitsui, Daisuke Yokoyama
  • Patent number: 8378339
    Abstract: A photoelectric conversion device comprising a transparent electrically conductive film, a photoelectric conversion film and an electrically conductive film in this order, wherein the photoelectric conversion film comprises a photoelectric conversion layer, and an electron blocking layer, wherein the electron blocking layer contains a compound represented by the specific formula.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: February 19, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Kimiatsu Nomura, Eiji Fukuzaki, Tetsuro Mitsui