Patents by Inventor Mutsuo Mitsui

Mutsuo 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: 8298031
    Abstract: The present invention provides an excellent organic EL device with a glass substrate and a sealing glass sheet which are thinned for weight reduction while avoiding lowering the durability and impact resistance of the device. The organic luminescence device is characterized in that sealing is performed at the space between a face of the sealing glass sheet along the outer edge and a face of the device substrate with a low melting point metal.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: October 30, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Koike, Mutsuo Mitsui, Masahiro Kanai
  • Publication number: 20090170393
    Abstract: The present invention provides an excellent organic EL device with a glass substrate and a sealing glass sheet which are thinned for weight reduction while avoiding lowering the durability and impact resistance of the device. The organic luminescence device is characterized in that sealing is performed at the space between a face of the sealing glass sheet along the outer edge and a face of the device substrate with a low melting point metal.
    Type: Application
    Filed: March 3, 2009
    Publication date: July 2, 2009
    Applicant: Canon Kabushiki Kaisha
    Inventors: Atsushi Koike, Mutsuo Mitsui, Masahiro Kanai
  • Publication number: 20050248272
    Abstract: The present invention provides an excellent organic EL device with a glass substrate and a sealing glass sheet which are thinned for weight reduction while avoiding lowering the durability and impact resistance of the device. The organic luminescence device is characterized in that sealing is performed at the space between a face of the sealing glass sheet along the outer edge and a face of the device substrate with a low melting point metal.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 10, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Koike, Mutsuo Mitsui, Masahiro Kanai
  • Publication number: 20050230679
    Abstract: A semiconductor device with a configuration having a high sealing capability using a ultraviolet curing resin is provided, wherein a cover and a substrate contact each other, and the ultraviolet cured resin is disposed on the contacting end of both and cured.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 20, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Issei Yonemoto, Mutsuo Mitsui
  • Publication number: 20020041353
    Abstract: A chiral smectic liquid crystal device is constituted by a chiral smectic liquid crystal; a pair of substrates each provided with an electrode for applying a voltage to the liquid crystal and an alignment control layer formed by oblique vapor deposition, the pair of substrates being oppositely disposed to sandwich the liquid crystal so as to form a plurality of pixels each provided with an active element connected to an associated electrode on at least one of the substrates; and a polarizer provided to at least one of the substrates. The liquid crystal has a phase transition series on temperature decrease of isotropic liquid phase (Iso), cholesteric phase (Ch) and chiral smectic C phase (Smc*) or of Iso and SmC*.
    Type: Application
    Filed: May 22, 2001
    Publication date: April 11, 2002
    Inventors: Koji Noguchi, Hirohide Munakata, Mutsuo Mitsui, Yasufumi Asao, Ryuichiro Isobe
  • Publication number: 20020030777
    Abstract: A liquid crystal device exhibiting a high-speed responsiveness without requiring a voltage application treatment is formed of a pair of substrates each provided with an electrode for applying a voltage therebetween and a nematic liquid crystal disposed between the substrates. The pair of substrates are provided with mutually parallel uniaxial alignment directions and provided with asymmetrical alignment characteristics for achieving an asymmetrical bend alignment state of liquid crystal molecules giving mutually different pretilt angles with the substrates under no electric field.
    Type: Application
    Filed: May 22, 2001
    Publication date: March 14, 2002
    Inventors: Koji Noguchi, Mutsuo Mitsui
  • Patent number: 5699138
    Abstract: A large-sized liquid crystal panel uniformly filled with a liquid crystal material may be produced through a process including the steps of: fixing a pair of substrates with a sealing member disposed therebetween to form a blank panel having an injection port, reducing a pressure within the panel, applying a liquid crystal material onto the injection port, heating the liquid crystal material to its isotropic temperature, injecting the liquid crystal material into the panel under a pressure, and filling the panel with the liquid crystal material under heating and pressurization from the injection port toward the panel inside. The pressure within the panel before the injection is reduced at a rate not exceeding 25 torr/min. The pressure for injection is increased at varying rates, e.g., with an intermediate constant pressure period.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 16, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Watanabe, Kazuya Ishiwata, Masaaki Suzuki, Noriyuki Nakai, Takashi Enomoto, Naoya Nishida, Tatsuo Murata, Mutsuo Mitsui, Masayuki Shimamune
  • Patent number: 5576865
    Abstract: A large-sized liquid crystal panel uniformly filled with a liquid crystal material may be produced through a process including the steps of: fixing a pair of substrates with a sealing member disposed therebetween to form a blank panel having an injection port, reducing a pressure within the panel, applying a liquid crystal material onto the injection port, heating the liquid crystal material to its isotropic temperature, injecting the liquid crystal material into the panel under a pressure, and filling the panel with the liquid crystal material under heating and pressurization from the injection port toward the panel inside. The pressure within the panel before the injection is reduced at a rate not exceeding 25 torr/min. The pressure for injection is increased at varying rates, e.g., with an intermediate constant pressure period.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: November 19, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Watanabe, Kazuya Ishiwata, Masaaki Suzuki, Noriyuki Nakai, Takashi Enomoto, Naoya Nishida, Tatsuo Murata, Mutsuo Mitsui, Masayuki Shimamune
  • Patent number: 5546998
    Abstract: A smectic liquid crystal is injected into a liquid crystal panel according to the vacuum injection scheme. The liquid crystal is applied over an injection port of a blank panel while maintaining the panel at a temperature below a temperature at which the liquid crystal shows a fluidity and controlling the liquid crystal at a viscosity of 0.0005 -0.005 kg/ms. As a result, an appropriate amount of the liquid crystal can be applied, thereby providing a liquid crystal panel free from inversion of bubbles and good and uniform alignment free from alignment failure.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: August 20, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayuki Shimamune, Takashi Enomoto, Tatsuo Murata, Mutsuo Mitsui
  • Patent number: 5548428
    Abstract: A ferroelectric liquid crystal panel is prepared by injecting a ferroelectric liquid crystal into a liquid crystal panel through a process including at least four steps, i.e., a first step of reducing a pressure and evacuating gas within the liquid crystal panel, a second step of applying the ferroelectric liquid crystal to an injection port of the liquid crystal panel, a third step of causing the liquid crystal to enter into the liquid crystal panel under an increasing pressure, and a fourth step of completing injection of the liquid crystal into the liquid crystal panel under an elevated pressure. In the process, the liquid crystal panel is held at a higher temperature in the first step than in the second step. As a result, it is possible to obtain a ferroelectric liquid crystal panel which contains a ferroelectric liquid crystal at a sufficiently high packing density, free from occurrence of voids even after standing at a low temperature and has a uniform alignment state over the entire panel area.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: August 20, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Masaki, Kenji Onuma, Toshifumi Yoshioka, Mutsuo Mitsui
  • Patent number: 5479284
    Abstract: A large-sized liquid crystal panel uniformly filled with a liquid crystal material may be produced through a process including the steps of: fixing a pair of substrates with a sealing member disposed therebetween to form a blank panel having an injection port, reducing a pressure within the panel, applying a liquid crystal material onto the injection port, heating the liquid crystal material to its isotropic temperature, injecting the liquid crystal material into the panel under a pressure, and filling the panel with the liquid crystal material under heating and pressurization from the injection port toward the panel inside. The pressure within the panel before the injection is reduced at a rate not exceeding 25 torr/min. The pressure for injection is increased at varying rates, e.g., with an intermediate constant pressure period.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: December 26, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Watanabe, Kazuya Ishiwata, Masaaki Suzuki, Noriyuki Nakai, Takashi Enomoto, Naoya Nishida, Tatsuo Murata, Mutsuo Mitsui, Masayuki Shimamune
  • Patent number: 5417257
    Abstract: A smectic liquid crystal is injected into a liquid crystal panel according to the vacuum injection scheme. The liquid crystal is applied over an injection port of a blank panel while maintaining the panel at a temperature below a temperature at which the liquid crystal shows a fluidity and controlling the liquid crystal at a viscosity of 0.0005-0.005 kg/ms. As a result, an appropriate amount of the liquid crystal can be applied, thereby providing a liquid crystal panel free from inversion of bubbles and good and uniform alignment free from alignment failure.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: May 23, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayuki Shimamune, Takashi Enomoto, Tatsuo Murata, Mutsuo Mitsui
  • Patent number: 5406398
    Abstract: A liquid crystal device is constituted by a pair of oppositely spaced substrate each having on its opposite surface a group of stripe electrodes disposed to intersect with those disposed on the other substrate, and a liquid crystal disposed between the substrates so as to be driven by a voltage applied through the stripe electrodes. The group of stripe electrodes on at least one of the pair of substrates are formed through a lithographic step including dividing the stripe electrodes into at least two divisions at a line parallel (or perpendicular) to the extension of the stripe electrodes, and repeating a pattern exposure for each division of the stripe electrodes so as to dispose a joint between the divisions of the stripe electrodes at a non-display part including a spacing between two stripe electrode on the same substrate (or at a part in alignment with a non-display part including a spacing between two stripe electrodes on the opposite substrate).
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: April 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Suzuki, Yuichi Masaki, Toshifumi Yoshioka, Mutsuo Mitsui
  • Patent number: 5355236
    Abstract: A ferroelectric liquid crystal is injected into a liquid crystal cell including a pair of substrates each having at least an electrode thereon and disposed with a sealing agent therebetween so as to provide a prescribed gap therein.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: October 11, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mutsuo Mitsui
  • Patent number: 5285300
    Abstract: A liquid crystal device is constituted by a pair of oppositely spaced substrate each having on its opposite surface a group of stripe electrodes disposed to intersect with those disposed on the other substrate, and a liquid crystal disposed between the substrates so as to be driven by a voltage applied through the stripe electrodes. The group of stripe electrodes on at least one of the pair of substrates are formed through a lithographic step including dividing the stripe electrodes into at least two divisions at a line parallel (or perpendicular) to the extension of the stripe electrodes, and repeating a pattern exposure for each division of the stripe electrodes so as to dispose a joint between the divisions of the stripe electrodes at a non-display part including a spacing between two stripe electrode on the same substrate (or at a part in alignment with a non-display part including a spacing between two stripe electrodes on the opposite substrate).
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: February 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Suzuki, Yuichi Masaki, Toshifumi Yoshioka, Mutsuo Mitsui