Patents by Inventor Takayuki Iljima

Takayuki Iljima 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).

  • Light-emitting device and photovoltaic cell, and method for manufacturing the same
    Patent number: 8866134
    Abstract: Provided are a light-emitting device and a photovoltaic cell having excellent characteristics. A light-emitting device (10) includes a cathode (34), an anode (32), a light-emitting layer (50) interposed between the cathode (34) and the anode (32), and an electron injection layer (44) provided between the cathode (34) and the light-emitting layer (50) and connected to the cathode (34), in which at least one of the anode (32) and the cathode (34) contains a conductive material having an aspect ratio of 1.5 or more, and the electron injection layer (44) contains an organic compound having at least one of an ionic group and a polar group.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: October 21, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takayuki Iljima, Kenta Tanaka, Masanobu Tanaka, Hideyuki Higashimura
  • LIGHT-EMITTING DEVICE AND PHOTOVOLTAIC CELL, AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20130099224
    Abstract: Provided are a light-emitting device and a photovoltaic cell having excellent characteristics. A light-emitting device (10) includes a cathode (34), an anode (32), a light-emitting layer (50) interposed between the cathode (34) and the anode (32), and an electron injection layer (44) provided between the cathode (34) and the light-emitting layer (50) and connected to the cathode (34), in which at least one of the anode (32) and the cathode (34) contains a conductive material having an aspect ratio of 1.5 or more, and the electron injection layer (44) contains an organic compound having at least one of an ionic group and a polar group.
    Type: Application
    Filed: June 24, 2011
    Publication date: April 25, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takayuki Iljima, Kenta Tanaka, Masanobu Tanaka, Hideyuki Higashimura
  • Ink cartridge for ink-jet printing apparatus
    Patent number: 6755515
    Abstract: An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: June 29, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Minoru Usui, Satoshi Shinada, Takahiro Naka, Hisashi Miyazawa, Takeo Seino, Hisashi Koike, Takao Kobayashi, Masahiro Kanai, Yasuko Hirano, Yasushi Akatsuka, Takayuki Iljima, Noriaki Okazawa, Hitoshi Matsumoto, Yasuhiro Ogura
  • Ink cartridge for ink-jet printing apparatus
    Publication number: 20020140788
    Abstract: An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.
    Type: Application
    Filed: January 9, 2002
    Publication date: October 3, 2002
    Inventors: Minoru Usui, Satoshi Shinada, Takahiro Naka, Hisashi Miyazawa, Takeo Seino, Hisashii Koike, Takao Kobayashi, Masahiro Kanai, Yasuko Hirano, Yasushi Akatsuka, Takayuki Iljima, Noriaki Okazawa, Hitoshi Matsumoto, Yasuhiro Ogura
  • Printer
    Patent number: D525295
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: July 18, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Wataru Suzuki, Tetsu Nakayama, Emi Akahane, Takayuki Iljima, Daisuke Imai, Katsumi Tohgoh, Mikinobu Abe