Patents by Inventor Masatoshi Yamaki

Masatoshi Yamaki 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).

  • Organic electroluminescent panel
    Patent number: 7439671
    Abstract: An organic electroluminescent element formed on a substrate has a layer structure in which organic layer including an organic electroluminescent layer is sandwiched between a pair of electrodes. A film formation region of an emission layer which is made of a uniform film forming material in accordance with one opening of a film forming mask is formed by plural layers including a first emission layer and a second emission layer. The layers are formed at each setting of the film forming mask.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: October 21, 2008
    Assignee: Tohoku Pioneer Corporation
    Inventors: Isamu Ohshita, Takashi Yahagi, Hiroyuki Kura, Masatoshi Yamaki, Hiroshi Itoh
  • Organic electroluminescent panel and producing method of the same
    Patent number: 7264843
    Abstract: An organic electroluminescent element formed on a substrate has a layer structure in which organic layer including an organic electroluminescent layer is sandwiched between a pair of electrodes. A film formation region of an emission layer which is made of a uniform film forming material in accordance with one opening of a film forming mask is formed by plural layers including a first emission layer and a second emission layer. The layers are formed at each setting of the film forming mask.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: September 4, 2007
    Assignee: Tohoku Pioneer Corporation
    Inventors: Isamu Ohshita, Takashi Yahagi, Hiroyuki Kura, Masatoshi Yamaki, Hiroshi Itoh
  • Organic electroluminescent panel and producing method of the same
    Publication number: 20070196562
    Abstract: An organic electroluminescent element formed on a substrate has a layer structure in which organic layer including an organic electroluminescent layer is sandwiched between a pair of electrodes. A film formation region of an emission layer which is made of a uniform film forming material in accordance with one opening of a film forming mask is formed by plural layers including a first emission layer and a second emission layer. The layers are formed at each setting of the film forming mask.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 23, 2007
    Inventors: Isamu Ohshita, Takashi Yahagi, Hiroyuki Kura, Masatoshi Yamaki, Hiroshi Itoh
  • Light emitting device
    Patent number: 7019454
    Abstract: A transparent electrode layer, an organic EL layer, and a metallic electrode layer are stacked on top of each other in layers on the lower surface of a transparent substrate to form a planar light emitting element region in a light emitting device. A light beam which is emitted from the light emitting element region and incident on the transparent substrate is transmitted out from a display region as well as a light transmitting region formed near an edge of the transparent substrate. Thus, the light emitting device is enabled to facilitate fabrication and make an effective use of the entire surface of the transparent substrate as the light transmitting region.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: March 28, 2006
    Assignee: Tohoku Pioneer Corporation
    Inventors: Gen Suzuki, Masatoshi Yamaki, Yoichi Munekata, Naoki Yazawa
  • Organic electroluminescent panel and producing method of the same
    Publication number: 20040232829
    Abstract: An organic electroluminescent element formed on a substrate has a layer structure in which organic layer including an organic electroluminescent layer is sandwiched between a pair of electrodes. A film formation region of an emission layer which is made of a uniform film forming material in accordance with one opening of a film forming mask is formed by plural layers including a first emission layer and a second emission layer. The layers are formed at each setting of the film forming mask.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 25, 2004
    Applicant: TOHOKU PIONEER CORPORATION
    Inventors: Isamu Ohshita, Takashi Yahagi, Hiroyuki Kura, Masatoshi Yamaki, Hiroshi Itoh
  • Light emitting device
    Publication number: 20040056585
    Abstract: A transparent electrode layer, an organic EL layer, and a metallic electrode layer are stacked on top of each other in layers on the lower surface of a transparent substrate to form a planar light emitting element region in a light emitting device. A light beam which is emitted from the light emitting element region and incident on the transparent substrate is transmitted out from a display region as well as a light transmitting region formed near an edge of the transparent substrate. Thus, the light emitting device is enabled to facilitate fabrication and make an effective use of the entire surface of the transparent substrate as the light transmitting region.
    Type: Application
    Filed: November 5, 2002
    Publication date: March 25, 2004
    Applicant: TOHOKU PIONEER CORPORATION
    Inventors: Gen Suzuki, Masatoshi Yamaki, Yoichi Munekata, Naoki Yazawa
  • System for detecting defective point on power transmission line by utilizing satellite
    Patent number: 5070537
    Abstract: The invention relates to a system for detecting any defective point on a power transmission line by making use of highly-accurate time signal transmitted from a satellite and by utilizing a digital data processing system.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: December 3, 1991
    Assignees: Tohoku Electric Power Co., Inc., Kyokuto Boeki Kaisha, Ltd.
    Inventors: Sakari Ohira, Masatoshi Yamaki, Akira Terashima, Masaaki Ozawa