Patents by Inventor Tetsuya Okamoto

Tetsuya Okamoto 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: 9871221
    Abstract: The present invention includes a frame-shaped sealing material, a filling layer, and a support. The frame-shaped sealing material is provided between a TFT substrate and a counter substrate, and is configured to seal an organic EL element (electroluminescent element) along with the TFT substrate and the counter substrate. The filling layer is composed of a liquid filler, and is filled in the space between the counter substrate, a sealing film, and the sealing material. The support is located inside the sealing material and between the TFT substrate and the counter substrate, and also supports the TFT substrate and the counter substrate.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 16, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Senoo, Tetsuya Okamoto, Tohru Sonoda, Seiji Fujiwara, Takeshi Hirase
  • Publication number: 20180010244
    Abstract: A mask comprises a mask substrate having a protruding section in an opening end surface of an opening, having an acute angle defined by ?1 and ?2 of no more than 43°, and having a height from a film-formation surface on the substrate to a tip section of the protruding section greater than the thickness of the film to be formed on the film-formation surface.
    Type: Application
    Filed: January 22, 2016
    Publication date: January 11, 2018
    Inventors: TETSUYA OKAMOTO, TAKESHI HIRASE, TOHRU SENOO, TOHRU SONODA, DAICHI NISHIKAWA, MAMORU ISHIDA
  • Publication number: 20170365815
    Abstract: A the organic EL display 1 includes: a first substrate 10; an organic EL element 4 provided above the first substrate 10; and a multilayer sealing film 2 provided above the first substrate 10 to cover the organic EL element 4, and including a barrier layer and a buffer layer lower in hardness than the barrier layer. The organic EL element covered with the multilayer sealing film includes a protrusion, and a relationship (d/h)<2 holds where h is a height of the protrusion directly below the buffer layer and d is a thickness of the buffer layer.
    Type: Application
    Filed: November 30, 2015
    Publication date: December 21, 2017
    Inventors: TOHRU SONODA, TAKESHI HIRASE, TETSUYA OKAMOTO, TOHRU SENOO, DAICHI NISHIKAWA, MAMORU ISHIDA
  • Patent number: 9847504
    Abstract: An organic EL display device (electroluminescent device) equipped with an organic EL element (electroluminescent element) includes an opposing substrate that is provided on an organic EL element side and that opposes a TFT substrate (substrate), a desiccant that is provided between the TFT substrate and the opposing substrate in such a manner as to cover the organic EL element, a frame-shaped seal material that seals the organic EL element between the TFT substrate and the opposing substrate, and a holding member for holding the desiccant, the holding member being provided on the opposing substrate side inside the seal material.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 19, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Senoo, Takeshi Hirase, Tetsuya Okamoto, Tohru Sonoda
  • Patent number: 9843013
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element. The sealing film includes a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, and a third inorganic layer (uppermost inorganic layer), which are arranged in this order. The first and second organic layers are formed so that the thickness of the end portions gradually decreases from the thickness of the central portions. The third inorganic layer is provided to cover the end portions of each of the first inorganic layer, the first organic layer, the second inorganic layer, and the second organic layer.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: December 12, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo
  • Publication number: 20170352835
    Abstract: In an organic EL display device that includes a TFT substrate (substrate) and an organic EL element (electroluminescent element) provided on the TFT substrate, a sealing film is provided that seals the organic EL element. The sealing film includes one or more layers of inorganic film. The thickness of a peripheral portion of at least one layer of inorganic film among the one or more layers of inorganic film is made thick. Further, a liquid repellent layer is provided covering the sealing film.
    Type: Application
    Filed: November 4, 2015
    Publication date: December 7, 2017
    Inventors: TAKESHI HIRASE, TETSUYA OKAMOTO, TOHRU SENOO, TOHRU SONODA, DAICHI NISHIKAWA, SEIJI FUJIWARA
  • Publication number: 20170352832
    Abstract: An organic EL device includes a TFT substrate 1, a first electrode 5 provided on the TFT substrate 1, an organic EL layer 6 provided on the first electrode 5, a second electrode 7 provided on the organic EL layer 6, and a sealing film 10 covering the second electrode 7. The TFT substrate 1 is provided thereon with upward projections 11 and 12. The upward projections 11 and 12 are covered with the sealing film 10.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 7, 2017
    Inventors: TETSUYA OKAMOTO, TAKESHI HIRASE, TOHRU SENOO, TOHRU SONODA, SEIJI FUJIWARA, DAICHI NISHIKAWA
  • Publication number: 20170324061
    Abstract: An organic EL display device 1 that includes a TFT substrate (substrate) 2 and an organic EL element (electroluminescent element) 4 provided on the TFT substrate 2 includes a sealing film 14 that seals the organic EL element 4. The sealing film 14 has a layered structure composed of an organic layer 14b and inorganic layers 14a, 14c. At least a peripheral portion 14b2 of the organic layer 14b has a lower carbon content than a central portion 14b1 of the organic layer 14b.
    Type: Application
    Filed: October 8, 2015
    Publication date: November 9, 2017
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Seiji FUJIWARA, Daichi NISHIKAWA, Mamoru ISHIDA
  • Publication number: 20170263892
    Abstract: In an organic EL display device (electroluminescence device) including a flexible TFT substrate (substrate), an organic EL element (electroluminescence element) provided on the TFT substrate, and a sealing film that seals the organic EL element, a foldable bend portion is provided. The film thickness of the sealing film is reduced at the bend portion.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 14, 2017
    Inventors: Tohru SENOO, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SONODA, Mamoru ISHIDA, Seiji FUJIWARA, Daichi NISHIKAWA
  • Patent number: 9726916
    Abstract: To provide a member bonding apparatus that can accurately position two members for bonding. Member alignment preprocessing device 15 adjusts to align one of the two members received by member receiving device 11 with another member in X and Y-axis directions so that the positions of bonding surfaces of the two members approximately correspond, adhesive application device 12 applies adhesive to a bonding surface of one of the two members approximately aligned, member alignment device 16 adjusts to align another member with one of the two members in X, Y, Z-axis and ?, ?, ?-axis directions based on images of the two members captured by a CCD camera so that positions of the bonding surfaces of the two members correspond, member bonding device 13 makes the bonding surfaces of the two members aligned be bonded to each other through the adhesive, and member delivery device 14 unloads and delivers the bonded member.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 8, 2017
    Assignee: Origin Electric Company, Limited
    Inventors: Koji Yamaguchi, Yutaka Matsumoto, Hisashi Shimizu, Tetsuya Okamoto
  • Publication number: 20170194359
    Abstract: The present invention provides a circuit board having excellent productivity, particularly a circuit board having excellent productivity with respect to a semiconductor layer and source layer forming step, a display device, and a process for producing a circuit board. The circuit board of the present invention is a circuit board including an oxide semiconductor layer and an electrode connected to the oxide semiconductor layer, wherein the electrode is formed by essentially laminating a layer made of a metal other than copper and a layer containing copper.
    Type: Application
    Filed: February 2, 2017
    Publication date: July 6, 2017
    Inventors: Yuichi SAITO, Yohsuke KANZAKI, Yudai TAKANISHI, Tetsuya OKAMOTO, Yoshiki NAKATANI, Yoshimasa CHIKAMA
  • Publication number: 20170191191
    Abstract: Provided is a polyetherimide-based fiber containing a polyetherimide resin and carbon black dispersed in the resin, wherein the content of the carbon black is 0.03 wt % or greater; the carbon black has a primary particle number-mean particle size of from 30 nm to 500 nm; and the fiber has a weight reduction rate of less than 0.5% around the glass transition point (Tg) of the polyetherimide resin, where the weight reduction rate is defined by a following formula (1). Weight reduction rate (%)={[(fiber weight at temperature T1)?(fiber weight at temperature T2)]/(fiber weight at temperature T1)}×100??(1) Where T1 denotes a temperature (Tg?15° C.) that is 15° C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25° C.) that is 25° C. higher than the glass transition point.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 6, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Tetsuya OKAMOTO, Akihiro UEHATA, Satoshi KATSUYA
  • Patent number: 9692011
    Abstract: In an organic EL display device (electroluminescence device) including an organic EL element (electroluminescence element), the organic EL element is covered with a desiccant layer. Between a TFT substrate (substrate) and an opposite substrate, a frame-shaped moisture high-permeable layer and a frame-shaped sealing member are disposed in a state successively surrounding the desiccant layer.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 27, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Senoo, Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto
  • Patent number: 9653702
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element, and a projection (preventing portion) is configured to prevent the sealing film from peeling off and to have an inclined plane forming an obtuse angle with a light emitting surface of the organic EL element. The projection is provided only in a non-light emitting region of the organic EL element.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 16, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Seiji Fujiwara
  • Patent number: 9653703
    Abstract: In an organic EL display device (electroluminescent device) equipped with an organic EL element (electroluminescent element), the organic EL element is encapsulated by a TFT substrate (substrate), a counter substrate, and a sealing resin. A desiccant layer and a highly-moisture-permeable layer are laminated in this order on the organic EL element. The highly-moisture-permeable layer is in direct contact with the sealing resin.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: May 16, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo
  • Publication number: 20170133626
    Abstract: The present invention includes a frame-shaped sealing material, a filling layer, and a support. The frame-shaped sealing material is provided between a TFT substrate and a counter substrate, and is configured to seal an organic EL element (electroluminescent element) along with the TFT substrate and the counter substrate. The filling layer is composed of a liquid filler, and is filled in the space between the counter substrate, a sealing film, and the sealing material. The support is located inside the sealing material and between the TFT substrate and the counter substrate, and also supports the TFT substrate and the counter substrate.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 11, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tohru SENOO, Tetsuya OKAMOTO, Tohru SONODA, Seiji FUJIWARA, Takeshi HIRASE
  • Publication number: 20170084866
    Abstract: Provided is a TFT substrate (substrate); a second electrode (vapor-deposited membrane) that is formed on the TFT substrate and includes a protruding portion; and a sealing membrane provided so as to cover the second electrode, wherein, when a represents an absolute value of a stress of the sealing membrane, t represents a thickness of the sealing membrane, and P represents a sum of a product of an oblique side length and an oblique side slope in a minute region on an oblique side of the protruding portion, a value of an index N expressed by the expression (N=?·t·P) is less than or equal to 935 MPa·?m2.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 23, 2017
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Seiji FUJIWARA
  • Publication number: 20170040399
    Abstract: Provided is an organic EL display device (electroluminescence device) including a TFT substrate (substrate) and an organic EL element (electroluminescence element) provided on the TFT substrate, wherein the organic EL display device includes a sealing layer that seals the organic EL element. The sealing layer is provided with a first, a second, and a third sealing film that are sequentially stacked from the organic EL element side, the first and third sealing films and are each formed of an inorganic film, and the second sealing film is formed of an octamethylcyclotetrasiloxane film.
    Type: Application
    Filed: April 30, 2015
    Publication date: February 9, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Tohru SONODA, Seiji FUJIWARA
  • Patent number: 9530984
    Abstract: A barrier film configured to reduce degradation of an organic EL element includes a first inorganic film, a second inorganic film, and a third inorganic film which are provided in order from a base substrate, a first organic film between the first inorganic film and the second inorganic film, and a second organic film between the second inorganic film and the third inorganic film. The first organic film has a plurality of first through holes formed therein so that the first inorganic film is in contact with the second inorganic film through the first through holes. The second organic film has a plurality of second through holes formed therein so that the second inorganic film is in contact with the third inorganic film through the second through holes.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: December 27, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Yuki Yasuda
  • Publication number: 20160343981
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element, and a projection (preventing portion) is configured to prevent the sealing film from peeling off and to have an inclined plane forming an obtuse angle with a light emitting surface of the organic EL element. The projection is provided only in a non-light emitting region of the organic EL element.
    Type: Application
    Filed: February 3, 2015
    Publication date: November 24, 2016
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Seiji FUJIWARA