Patents by Inventor Akihiro Senoo

Akihiro Senoo 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: 20030216591
    Abstract: A silicon compound having a repeating unit represented by the following general formula (1): 1
    Type: Application
    Filed: September 16, 2002
    Publication date: November 20, 2003
    Inventors: Kazunori Ueno, Yomishi Toshida, Yuichi Hashimoto, Akihiro Senoo, Seiji Mashimo
  • Publication number: 20030207153
    Abstract: A luminescent device having a pair of electrodes and a luminescent layer disposed between the electrodes.
    Type: Application
    Filed: January 23, 2003
    Publication date: November 6, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Senoo, Yuichi Hashimoto, Kazunori Ueno, Seiji Mashimo, Shinichi Urakawa
  • Patent number: 6636001
    Abstract: An organic electronic device functioning as a flat EL display panel is provided by forming an organic EL element and a nonlinear device as a drive means for controlling a current supplied to the EL device on a common substrate. The nonlinear device has a structure including a first organic layer and a second organic layer each comprising an organic material, and at least one metal layer principally comprising a metal element and sandwiched between the first and second organic layers so as to flow at least a part of current through the metal layer between the first and second organic layers sandwiching the metal layer. The nonlinear device having a function comparable to a conventional organic transistor or diode can be formed by using not a special organic material having a remarkably high mobility but an organic material selected from a broader class of materials.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: October 21, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsundo Kawai, Akihiro Senoo, Kazunori Ueno
  • Publication number: 20030168971
    Abstract: A luminescent device in accordance with the present invention includes an anode, a cathode, and an organic layer containing at least one organic compound provided therebetween.
    Type: Application
    Filed: January 21, 2003
    Publication date: September 11, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuichi Hashimoto, Akihiro Senoo, Yomishi Toshida, Kazunori Ueno
  • Publication number: 20030157364
    Abstract: An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes.
    Type: Application
    Filed: October 9, 2002
    Publication date: August 21, 2003
    Inventors: Akihiro Senoo, Yomishi Toshida, Kazunori Ueno, Seiji Mashimo
  • Patent number: 6586119
    Abstract: A luminescent device in accordance with the present invention includes an anode, a cathode, and an organic layer containing at least one organic compound provided therebetween. The work function of the anode (Wf(anode)) and the Fermi level of the organic layer (Ef(anode)) being in contact with the anode satisfies the following equation (I): Ef(anode)−0.2≦Wf(anode)≦Ef(anode)+0.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: July 1, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Hashimoto, Akihiro Senoo, Yomishi Toshida, Kazunori Ueno
  • Patent number: 6583805
    Abstract: An exposure unit includes a luminescent device array including a pair of electrodes and an organic compound layer disposed between the electrodes, and a microlens array arranged corresponding to the luminescent device array. The exposure unit is used in an image forming apparatus using an electrophotographic system.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: June 24, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Mashimo, Noboru Koumura, Yukio Nagase, Akihiro Senoo, Kazunori Ueno
  • Patent number: 6583557
    Abstract: An organic luminescent element includes a substrate, an anode, a cathode, at least one organic material layer interposed between the anode and the cathode, and a sealing film containing a ferroelectric material provided on the anode or the cathode on the organic material layer. Preferably, the organic luminescent element further includes a counter electrode provided on the sealing film. Preferably, the substrate is transparent, and the anode is composed of indium tin oxide.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: June 24, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Hashimoto, Yoichi Osato, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe, Kazunori Ueno, Seiji Mashimo, Shinichi Urakawa
  • Patent number: 6534198
    Abstract: A silicon compound having a repeating unit represented by the following general formula (1): wherein R is a hydrogen atom, a straight or branched alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, Ar is a substituted or unsubstituted aryl group or an unsubstituted heterocyclic group, m is an integer of 2 or more, and n is an integer of 5,000 or less.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 18, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunori Ueno, Yomishi Toshida, Yuichi Hashimoto, Akihiro Senoo, Seiji Mashimo
  • Publication number: 20030044518
    Abstract: An organic luminescence device capable of luminescence at a high efficiency, a high luminance and high durability is formed by a pair of electrodes comprising an anode and a cathode, and at least one organic layer disposed between the electrodes. The at least one organic layer includes at least one layer comprising a polymerized film of organic layer having at least two polymerizable double bonds.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 6, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Senoo, Tatsundo Kawai, Yoichi Osato, Yuichi Hashimoto, Koichi Suzuki, Hiroshi Tanabe, Kazunori Ueno, Seiji Mashimo
  • Patent number: 6517957
    Abstract: An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): wherein X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic group, each of at least two groups among Ar1, Ar2, Ar3, and Ar4 is a substituted or unsubstituted fluorenyl group, and the remainder represents a substituted or unsubstituted aryl group.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: February 11, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Senoo, Yomishi Toshida, Kazunori Ueno, Seiji Mashimo
  • Publication number: 20030008174
    Abstract: An organic luminescence device is constituted by a pair of an anode and a cathode, and at least one organic layer disposed between the anode and the cathode.
    Type: Application
    Filed: April 23, 2002
    Publication date: January 9, 2003
    Inventors: Koichi Suzuki, Mizuho Hiraoka, Akihiro Senoo, Kazunori Ueno
  • Publication number: 20020177009
    Abstract: An organic luminescence device is constituted by a pair of an anode and a cathode, and at least one organic luminescence function layer disposed between the anode and the cathode.
    Type: Application
    Filed: February 20, 2002
    Publication date: November 28, 2002
    Inventors: Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe
  • Patent number: 6461748
    Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: October 8, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Suzuki, Yuichi Hashimoto, Akihiro Senoo, Kazunori Ueno
  • Patent number: 6461749
    Abstract: An organic boron compound effective for constituting a functional layer in an organic luminescence device is represented by formula (1) below: wherein Ar1 denotes an optionally substituted aryl group or heterocyclic group; R1-R11 independently denote hydrogen, halogen, alkyl, alkenyl, amino, alkoxy, formyl, nitrile, aroyl, alkyloyl, aryl, aralkyl or heterocyclic group, each optionally substituted with the proviso that an adjacent one or more pairs of R1-R11 can form a condensed ring. The organic boron compound can be produced through a process including (A) a step of reacting an aromatic ketone compound X with an aromatic ketone compound or an aromatic aldehyde compound in the presence of ammonium chloride, and (B) a step of reacting a product of the step (A) with an aromatic boric acid compound.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: October 8, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunori Ueno, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe, Seiichi Yogi
  • Patent number: 6458476
    Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: October 1, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Suzuki, Yuichi Hashimoto, Akihiro Senoo, Kazunori Ueno
  • Publication number: 20020135664
    Abstract: An exposure apparatus performs exposure of a photosensitive body by an array of light emitting devices to form an image as a latent image thereon. The array of light emitting devices incorporate micro-optical cavities. The micro-optical cavities limit wavelengths of light emitted from the array of light emitting devices, so that the wavelength at a peak of emitted light is in a half width region of sensitivity versus wavelength of the photosensitive body.
    Type: Application
    Filed: August 30, 1999
    Publication date: September 26, 2002
    Inventors: SEIJI MASHIMO, NOBORU KOUMURA, YUKIO NAGASE, YUICHI HASHIMOTO, AKIHIRO SENOO, KAZUNORI UENO
  • Publication number: 20020118271
    Abstract: An exposure unit includes a luminescent device array including a pair of electrodes and an organic compound layer disposed between the electrodes, and a microlens array arranged corresponding to the luminescent device array. The exposure unit is used in an image forming apparatus using an electrophotographic system.
    Type: Application
    Filed: May 28, 1999
    Publication date: August 29, 2002
    Inventors: SEJI MASHIMO, NOBORU KOUMURA, YUKIO NAGASE, AKIHIRO SENOO, KAZUNORI UENO
  • Patent number: 6436559
    Abstract: An organic luminescence is constituted by a pair of electrodes including an anode and a cathode, and an organic compound layer disposed between the pair of electrodes. The organic compound layer comprises a compound represented by the following formula (I): wherein R1 to R6 independently denote a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted heterocyclic group, with the proviso that each pair of R1 and R2, R3 and R4, an R5 and R6 or of R1 and R6, R2 and R3, and R4 and R5 may be connected to each other to form a fused ring structure.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: August 20, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunori Ueno, Akihiro Senoo, Seiji Mashimo
  • Publication number: 20020109464
    Abstract: An organic electronic device functioning as a flat EL display panel is provided by forming an organic EL element and a nonlinear device as a drive means for controlling a current supplied to the EL device on a common substrate. The nonlinear device has a structure including a first organic layer and a second organic layer each comprising an organic material, and at least one metal layer principally comprising a metal element and sandwiched between the first and second organic layers so as to flow at least a part of current through the metal layer between the first and second organic layers sandwiching the metal layer. The nonlinear device having a function comparable to a conventional organic transistor or diode can be formed by using not a special organic material having a remarkably high mobility but an organic material selected from a broader class of materials.
    Type: Application
    Filed: December 31, 2001
    Publication date: August 15, 2002
    Inventors: Tatsundo Kawai, Akihiro Senoo, Kazunori Ueno