Patents by Inventor Seiji Mashimo

Seiji Mashimo 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: 20150280175
    Abstract: This invention provides a method for manufacturing an organic light emitting element in which damages to members constituting the organic light emitting element are suppressed and a protective layer with few defects is formed by performing cleaning with liquid containing water. The manufacturing method according to this invention is a method for manufacturing an organic light emitting element including a process of preparing a lower electrode, a process of forming an organic compound layer on the lower electrode, a process of forming an upper electrode on the organic compound layer; and a process of forming a first protective layer on the upper electrode, in which the method includes, after the process of forming the organic compound layer, a process of cleaning at least one of the organic compound layer, the upper electrode, and the first protective layer with liquid containing water.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Inventors: Takayuki Ito, Itaru Takaya, Seiji Mashimo, Koji Ishizuya, Jun Kamatani, Naoki Yamada, Tetsuya Kosuge, Hirokazu Miyashita
  • Patent number: 8398774
    Abstract: Provided is a method of manufacturing an organic light emitting device including the step of forming an electron injection layer. The step of forming the electron injection layer includes the steps of: vaporizing in a container a dopant material as a raw material of a dopant; causing the vaporized dopant material to pass a heated medium between the container and the substrate; and forming the organic compound into the electron injection layer. According to the method the organic light emitting device which has high electron injection efficiency and can be driven at a low voltage can be obtained.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: March 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Otsuka, Yuzo Tokunaga, Seiji Mashimo, Toshiaki Yoshikawa, Naoto Fukuda
  • Publication number: 20120083062
    Abstract: Provided is a method of manufacturing an organic light emitting device including the step of forming an electron injection layer. The step of forming the electron injection layer includes the steps of: vaporizing in a container a dopant material as a raw material of a dopant; causing the vaporized dopant material to pass a heated medium between the container and the substrate; and forming the organic compound into the electron injection layer. According to the method the organic light emitting device which has high electron injection efficiency and can be driven at a low voltage can be obtained.
    Type: Application
    Filed: December 15, 2011
    Publication date: April 5, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Manabu OTSUKA, Yuzo TOKUNAGA, Seiji MASHIMO, Toshiaki YOSHIKAWA, Naoto FUKUDA
  • Patent number: 7964037
    Abstract: A vacuum deposition apparatus capable of enhancing the productivity of an organic electroluminescence device is realized. A first pipe is connected to a deposition source for evaporating an organic electroluminescence material, and two second pipes are directed to two film deposition objects comprised of substrates and masks, whereby an organic deposition film is formed. Vapor is released simultaneously from the deposition source to plural film deposition objects on different planes to deposit films, which promotes the reduction in film deposition time and the miniaturization of an apparatus.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: June 21, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Fukuda, Toshiaki Yoshikawa, Seiji Mashimo
  • Publication number: 20080268136
    Abstract: There is provided a method of producing an organic light emitting apparatus including a substrate, an organic light emitting device formed on the substrate, and a device separating film formed on a periphery of the organic light emitting device, the organic light emitting device including a lower electrode, an organic compound layer, and an upper electrode from the substrate side in the stated order, includes: cleaning a substrate having at least the lower electrode and the device separating film formed thereon by irradiating the substrate with UV-light while introducing gas containing at least oxygen in an atmosphere and exhausting the gas under a pressure in a range of 10 Pa or more to 10,000 Pa or less; forming an organic compound layer on the cleaned lower electrode; and forming an upper electrode on the organic compound layer.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuzo Tokunaga, Manabu Otsuka, Seiji Mashimo, Taro Endo, Naoya Nishida
  • Publication number: 20080014825
    Abstract: A vacuum deposition apparatus capable of enhancing the productivity of an organic electroluminescence device is realized. A first pipe is connected to a deposition source for evaporating an organic electroluminescence material, and two second pipes are directed to two film deposition objects comprised of substrates and masks, whereby an organic deposition film is formed. Vapor is released simultaneously from the deposition source to plural film deposition objects on different planes to deposit films, which promotes the reduction in film deposition time and the miniaturization of an apparatus.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 17, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoto Fukuda, Toshiaki Yoshikawa, Seiji Mashimo
  • Publication number: 20070221131
    Abstract: An object of the present invention is to reduce splash generated in a vapor deposition source and carry out vapor deposition at a stable, high vapor deposition speed. The vapor deposition according to the present invention is carried out by vertically stacking a plurality of doughnut-shaped flat plates in a crucible, mounting thin vapor deposition material on the doughnut-shaped flat plates, using heaters that surround the crucible to heat the vapor deposition material on the doughnut-shaped flat plates, allowing the vapor generated from the vapor deposition material to flow through a flow space A at each layer into a vertical flow path B, and discharging the vapor from an opening at the top of the flow path B toward a substrate to be deposited. The conductance of the flow space A is smaller than the conductance of the flow path B.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 27, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: TOSHIAKI YOSHIKAWA, SEIJI MASHIMO, NAOTO FUKUDA
  • Publication number: 20070134405
    Abstract: Provided is a method of manufacturing an organic light emitting device including the step of forming an electron injection layer. The step of forming the electron injection layer includes the steps of: vaporizing in a container a dopant material as a raw material of a dopant; causing the vaporized dopant material to pass a heated medium between the container and the substrate; and forming the organic compound into the electron injection layer. According to the method the organic light emitting device which has high electron injection efficiency and can be driven at a low voltage can be obtained.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 14, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: MANABU OTSUKA, YUZO TOKUNAGA, SEIJI MASHIMO, TOSHIAKI YOSHIKAWA, NAOTO FUKUDA
  • Patent number: 7022867
    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: September 16, 2002
    Date of Patent: April 4, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunori Ueno, Yomishi Toshida, Yuichi Hashimoto, Akihiro Senoo, Seiji Mashimo
  • Patent number: 6858325
    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: October 9, 2002
    Date of Patent: February 22, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Senoo, Yomishi Toshida, Kazunori Ueno, Seiji Mashimo
  • Publication number: 20050025997
    Abstract: A luminescent device having a pair of electrodes and a luminescent layer disposed between the electrodes.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Senoo, Yuichi Hashimoto, Kazunori Ueno, Seiji Mashimo, Shinichi Urakawa
  • Patent number: 6833200
    Abstract: A luminescent device having a pair of electrodes and a luminescent layer disposed between the electrodes.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 21, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Senoo, Yuichi Hashimoto, Kazunori Ueno, Seiji Mashimo, Shinichi Urakawa
  • Patent number: 6740430
    Abstract: An organic luminescence device is constituted by an organic luminescence lamination structure comprising a pair of an anode and a cathode, and at least one organic compound layer disposed between the anode and the cathode, a hermetic sealing housing enclosing therein the organic luminescence lamination structure and blocking external air, and a drying agent disposed within the hermetic sealing housing. The drying agent comprises a compound represented by the following formula (1): R—NCO  (1), wherein R denotes a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted styryl group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted heterocyclic group. The drying agent comprises the compound of the formula (1) in a polymerized form.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: May 25, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazunori Ueno, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe, Seiji Mashimo
  • Patent number: 6661445
    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: Grant
    Filed: August 30, 1999
    Date of Patent: December 9, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Mashimo, Noboru Koumura, Yukio Nagase, Yuichi Hashimoto, Akihiro Senoo, Kazunori Ueno
  • 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
  • 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: 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