Patents by Inventor Mutsumi Suzuki

Mutsumi Suzuki 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: 20010017515
    Abstract: Disclosed is a display device with improved brightness achieved by increasing electron emission efficiency of a thin film cathode. Phosphors are irradiated with electrons emitted to a vacuum through a flat thin film which is thinner than 5 nm and is disposed so as to face the phosphors. A top electrode for emitting the electrons is formed by stacking thin films of Ir, Pt, and Au, and performing a heat treatment so as to reconstruct the top electrode to have a structure in which thick island parts and a flat thin film part mixedly exist.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 30, 2001
    Inventors: Toshiaki Kusunoki, Mutsumi Suzuki, Masakazu Sagawa
  • Patent number: 6277503
    Abstract: The present invention provides an organic electroluminescent component in which use is made of the particular aromatic methylidene compound represented by the general formula (1). The component of the invention has the ability of high brightness luminescence with stability in low voltage application.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: August 21, 2001
    Assignee: Matsushita Electric Idustrial Co., LTD
    Inventors: Mitsuru Hashimoto, Mutsumi Suzuki, Masao Fukuyama
  • Publication number: 20010005021
    Abstract: An organic electroluminescent device comprises a pair of electrodes and a layer structure provided between the paired electrodes and including, at least, an emission layer comprising a specific type of oligomer. The layer structure may further comprise an electron injection layer and an electron transport layer, one of which comprises a specific type of oligomer. Alternatively, the layer structure may be of the type which comprises an organic layer having a charge transport interference layer in the inside thereof along with an emission layer.
    Type: Application
    Filed: December 21, 2000
    Publication date: June 28, 2001
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masao Fukuyama, Mutsumi Suzuki, Yuji Kudo, Yoshikazu Hori
  • Patent number: 6198217
    Abstract: An organic electroluminescent device comprises an electroluminescent unit having an organic layer structure provided between a pair of electrodes and capable of emitting light on application of a voltage thereto. The electroluminescent unit is covered with a protective double layer made of an organic barrier layer and an inorganic barrier layer formed on the unit in this order.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: March 6, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mutsumi Suzuki, Masao Fukuyama, Yoshikazu Hori
  • Patent number: 5936257
    Abstract: A thin-film electron emitter device is provided with a multilayer structure including upper and lower electrodes with an insulative or dielectric layer being sandwiched therebetween. The upper or "top" electrode is itself formed as a multilayer structure. For example, in one embodiment, the upper electrode is formed as a three layer lamination of an interface layer formed on the insulative layer, an intermediate or "middle" layer stacked on the interface layer and a surface layer stacked on or above the middle layer. The middle layer is made of a chosen material which is greater in sublimation enthalpy than the surface layer and yet less than the interface layer. When appropriate, the surface layer may be omitted providing two-layer structure rather than the three-layer structure.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: August 10, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Toshiaki Kusunoki, Mutsumi Suzuki
  • Patent number: 5707747
    Abstract: The present invention provides novel amine compounds useful as electron-transporting materials to be incorporated in organic electro-luminescence devices. More particularly, the present invention provides an organic electro-luminescence device (organic EL device) which can find wide application in various display units, requires a low applied voltage and exhibits a high luminance and an excellent stability.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: January 13, 1998
    Assignees: Hodogaya Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiromitsu Tomiyama, Masahiko Oshino, Ikuko Ihara, Naoko Nakanishi, Mutsumi Suzuki, Masao Fukuyama, Mutsuaki Murakami, Taro Nambu
  • Patent number: 5424562
    Abstract: A lateral static induction transistor suited for use as a picture element of a solid state imaging device. The lateral static induction transistor includes a semiconductor substrate of a first conduction type of P type or N type, a first epitaxial layer of the same conduction type as the first conduction type which is formed on the semiconductor substrate, a second epitaxial layer of a second conduction type opposite to the first conduction type which is formed on the first epitaxial layer, a source zone and a plurality of drain zones which are formed in the second epitaxial layer near the surface thereof, and a plurality of gates each thereof being formed so as to partially lie over the source zone and one of the drain zones on the second epitaxial layer through an insulating layer.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: June 13, 1995
    Assignee: Nikon Corporation
    Inventor: Mutsumi Suzuki
  • Patent number: 5187578
    Abstract: In a display device for pictures, etc., adequate brightness of pictures to be displayed is provided by varying the luminous times of the luminous elements making up the a display panel. The luminous elements receive multiple-bit codes representing levels of brightness from signals to be displayed. A time corresponding to a field of television signals is divided into a plurality of sub-fields corresponding to the bits of a multiple-bit code. The plurality of sub-fields have lengths of time proportional to weights of the corresponding bits. The luminous elements have different levels of brightness in sub-fields corresponding to bits of a multiple-bit binary code.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: February 16, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Akihiko Kohgami, Shigeo Mikoshiba, Shinichi Shinada, Mutsumi Suzuki