Patents by Inventor Yuji Hamada

Yuji Hamada 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: 20050079381
    Abstract: An organic EL device is provided which is capable of providing high luminance and high luminous efficiency. In an organic EL device, a hole injecting electrode lies on a glass substrate, and a hole injecting layer, a hole transporting layer, and a light emitting layer are sequentially formed thereon. An electron injecting electrode lies on the light emitting layer. The light emitting layer contains a host material, a light emitting dopant, and a first light-emission assisting dopant. The first light-emission assisting dopant is composed of a rubrene derivative.
    Type: Application
    Filed: June 4, 2002
    Publication date: April 14, 2005
    Inventors: Yuji Hamada, Tsuyoshi Tsujioka
  • Publication number: 20050074630
    Abstract: A hole injection layer, a hole transport layer, a blue light emitting layer, an orange light emitting layer, an electron transport layer, an electron injection layer, and a cathode are formed in this order on an anode. The blue light emitting layer is composed of a host material doped with an assisting dopant and a luminescent dopant emitting blue light. A material used for the hole transport layer is used for the assisting dopant. The orange light emitting layer is composed of a host material doped with a luminescent dopant emitting orange light.
    Type: Application
    Filed: March 26, 2004
    Publication date: April 7, 2005
    Inventors: Hiroshi Kanno, Noriyuki Matsusue, Kaori Saito, Yuji Hamada
  • Publication number: 20050002485
    Abstract: A method of producing an organic compound, which includes the steps of irradiating a reaction solution with an electromagnetic wave having a wavelength range of 900 MHz to 30 GHz to heat the solution, thereby producing the organic compound, and removing a low-boiling point component produced through the reaction from a reaction system to facilitate the reaction.
    Type: Application
    Filed: May 18, 2004
    Publication date: January 6, 2005
    Inventors: Takeko Matsumura, Kaori Saito, Yuji Hamada
  • Publication number: 20040239237
    Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a light emitting layer and a hole blocking layer are formed sequentially on the hole injection electrode. An electron transport layer is formed on the hole blocking layer, and an electron injection electrode is formed on the electron transport layer. The light emitting layer includes an organic platinum group element compound composed of a phenanthridine derivative and a platinum group element. This organic platinum group element compound can emit red-orange light via a triplet excited state.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 2, 2004
    Inventors: Noriyuki Matsusue, Yuji Hamada
  • Patent number: 6816566
    Abstract: A noncontact type signal transmission device performs noncontact transmission of signals between a first member and a second member by using light. The second member moves along a predetermined orbit relative to the first member. A plurality of light-emitting devices are arranged on one of the first and second members. A plurality of light-receiving devices are arranged on the other of the first and second members. Light emitted from the light-emitting devices is received by the light-receiving devices. Beam condensing devices are disposed between the light-emitting devices and the light-receiving devices. Each beam condensing device has a function of condensing light from the light-emitting device in a direction substantially perpendicular to the orbit. The function of each beam condensing device is to increase the amount of light received by each light-receiving device and to improve light reception sensitivity.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: November 9, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuji Hamada, Kyojiro Nambu
  • Publication number: 20040211956
    Abstract: A hole injecting electrode composed of ITO is formed on a glass substrate. On the hole injecting electrode, a hole injecting layer composed of CuPc (copper phthalocyanine), a plasma thin film of CFx formed by plasma CVD, a hole transporting layer of NPB, and a light emitting layer are formed in the order. On the light emitting layer, an electron transporting layer is formed, and an electron injecting electrode is formed thereon.
    Type: Application
    Filed: September 24, 2003
    Publication date: October 28, 2004
    Inventors: Hiroshi Kanno, Kiyoshi Yoneda, Kazuki Nishimura, Yuji Hamada
  • Patent number: 6806660
    Abstract: A motor controlling serial communication device includes an upper controller having a first IC and a first connector, and motor drivers having second ICs, second connectors and third connectors. First cables and second cables are used for coupling the upper controller to the motor drivers, so that a daisy-chain connection is formed.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: October 19, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshihiro Fujisaki, Yuji Hamada
  • Publication number: 20040156468
    Abstract: A noncontact type signal transmission device performs noncontact transmission of signals between a first member and a second member by using light. The second member moves along a predetermined orbit relative to the first member. A plurality of light-emitting devices are arranged on one of the first and second members. A plurality of light-receiving devices are arranged on the other of the first and second members. Light emitted from the light-emitting devices is received by the light-receiving devices. Beam condensing devices are disposed between the light-emitting devices and the light-receiving devices. Each beam condensing device has a function of condensing light from the light-emitting device in a direction substantially perpendicular to the orbit. The function of each beam condensing device is to increase the amount of light received by each light-receiving device and to improve light reception sensitivity.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Inventors: Yuji Hamada, Kyojiro Nambu
  • Publication number: 20040142208
    Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole injection layer, a hole transport layer and a luminescent layer are formed in turn on the hole injection electrode. An electron injection electrode is formed on the luminescent layer. The luminescent layer includes an organic iridium compound composed of a combination of a quinoline derivative and iridium. This organic iridium compound can emit red-orange light via a triplet excited state.
    Type: Application
    Filed: February 19, 2004
    Publication date: July 22, 2004
    Inventors: Yuji Hamada, Noriyuki Matsusue
  • Publication number: 20040106005
    Abstract: A luminescent element of a element structure having electrode and, being held between them, a luminescent solution containing a luminescent material and a solvent, wherein the luminescent solution further contains a luminescence promoting additive which comprises a nonionic compound having a diether structure, a crown ether structure or a polyethylene glycol structure and has the function to stabilize the luminescent material being ionized, and the solvent comprises a halogen-containing benzene derivative.
    Type: Application
    Filed: January 7, 2004
    Publication date: June 3, 2004
    Inventors: Yuji Hamada, Tsuyoshi Tsujioka, Kazuki Nishimura
  • Patent number: 6743526
    Abstract: In an organic electroluminescent device constructed by providing at least an emitting layer and a carrier transport layer using an organic material between a hole injection electrode and an electron injection electrode, at least one of the emitting layer and the carrier transport layer contains a chelate compound of a chromone derivative with zinc or aluminum, a chelate compound of a 3-hydroxyflavone derivative with a metal, a chelate compound composed of an 8-quinolinol derivative dimer and another ligant which are coordinated to a metal, or a chelate compound composed of two 8-quinolinol derivatives coordinated to a metal and one halogen bonded thereto.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: June 1, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yuji Hamada, Masayuki Shono, Yasuhiko Matsushita
  • Publication number: 20040066138
    Abstract: A light-emitting device including a plurality of emission layers, which has improved luminous efficiency and improved emission lifetime, is provided. In the light-emitting device, a first optical film thickness range L1 from a light-emitting position of a first emission layer to a light-emitting surface of the device, a second optical film thickness range L2 from a light-emitting position of a second emission layer to the device light-emitting surface, and film thicknesses of a plurality of layers between the light-emitting surface and the first emission layer, the first emission layer and the second emission layer are set so as to increase the luminous intensity of color of an emission produced by mixing an emission from the first emission layer with an emission from the second emission layer.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 8, 2004
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Hiroshi Kanno, Yuji Hamada, Kazuki Nishimura
  • Publication number: 20040066139
    Abstract: A light-emitting device including a plurality of emission layers, which has improved luminous efficiency and improved reliability (or device lifetime), is provided. The light-emitting device includes a first emission layer formed on a substrate, and a second emission layer formed on the first emission layer to provide a laminated structure, for emitting light having a different wavelength from that of light emitted by the first emission layer. At least one of the first emission layer and the second emission layer includes a host material, a luminescent first dopant material and a non-luminescent second dopant material.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 8, 2004
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Yuji Hamada, Hiroshi Kanno, Kazuki Nishimura
  • Patent number: 6718005
    Abstract: A noncontact type signal transmission device performs noncontact transmission of signals between a first member and a second member by using light. The second member moves along a predetermined orbit relative to the first member. A plurality of light-emitting devices are arranged on one of the first and second members. A plurality of light-receiving devices are arranged on the other of the first and second members. Light emitted from the light-emitting devices is received by the light-receiving devices. Beam condensing devices are disposed between the light-emitting devices and the light-receiving devices. Each beam condensing device has a function of condensing light from the light-emitting device in a direction substantially perpendicular to the orbit. The function of each beam condensing device is to increase the amount of light received by each light-receiving device and to improve light reception sensitivity.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: April 6, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuji Hamada, Kyojiro Nambu
  • Patent number: 6668227
    Abstract: There is provided a navigation apparatus which displays information concerning facilities or the like which are present in a broad range ahead of a user. An information processing section 4 of a navigation apparatus identifies a facility type to be displayed. Next, a predicted road along which a user is expected to travel is determined, and a reference intersection is selected from among the intersections on the predicted road. The information processing section 4 computes a network of roads beginning from the selected reference intersection, and acquires facility information in the neighborhood thereof. Furthermore, the information processing section 4 generates facility information image data for displaying the acquired facility information on a map.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 23, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Hamada, Yuji Hamada, Kiyomi Sakamoto, Atsushi Yamashita
  • Publication number: 20030195700
    Abstract: There is provided a navigation apparatus which displays information concerning facilities or the like which are present in a broad range ahead of a user. An information processing section 4 of a navigation apparatus identifies a facility type to be displayed. Next, a predicted road along which a user is expected to travel is determined, and a reference intersection is selected from among the intersections on the predicted road. The information processing section 4 computes a network of roads beginning from the selected reference intersection, and acquires facility information in the neighborhood thereof. Furthermore, the information processing section 4 generates facility information image data for displaying the acquired facility information on a map.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 16, 2003
    Inventors: Hiroyuki Hamada, Yuji Hamada, Kiyomi Sakamoto, Atsushi Yamashita
  • Publication number: 20030194580
    Abstract: A luminescent material for light emitting device represented by the following general formula (1) or (2).
    Type: Application
    Filed: February 26, 2003
    Publication date: October 16, 2003
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Yuji Hamada, Noriyuki Matsusue, Kazuki Nishimura
  • Publication number: 20030176966
    Abstract: There is provided a map displaying apparatus for improving the visual recognition of a object displayed as a 3D image. A map data acquisition section 11 acquires map data to be displayed for navigation purposes. A displayed state estimation section 12 receives the map data acquired by the map data acquisition section 11, and estimates a displayed state of the displayed object based on the map data. A display mode determination section 13 determines whether the displayed state as estimated by the displayed state estimation section 12 satisfies a predetermined criterion or not, thereby determining whether to modify a default display mode or not. When determining that a modification is to be applied, the display mode determination section 13 modifies the default display mode to determine an actual display mode.
    Type: Application
    Filed: March 11, 2003
    Publication date: September 18, 2003
    Inventors: Atsushi Yamashita, Kiyomi Sakamoto, Hiroyuki Hamada, Yuji Hamada, Keiichi Takahashi
  • Publication number: 20030170495
    Abstract: In an organic electroluminescent device constructed by providing at least an emitting layer and a carrier transport layer using an organic material between a hole injection electrode and an electron injection electrode, at least one of the emitting layer and the carrier transport layer contains a chelate compound of a chromone derivative with zinc or aluminum, a chelate compound of a 3-hydroxyflavone derivative with a metal, a chelate compound composed of an 8-quinolinol derivative dimer and another ligant which are coordinated to a metal, or a chelate compound composed of two 8-quinolinol derivatives coordinated to a metal and one halogen bonded thereto.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 11, 2003
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Yuji Hamada, Masayuki Shono, Yasuhiko Matsushita
  • Publication number: 20030168976
    Abstract: A high-quality organic EL panel is provided. The organic EL panel that can withstand a temperature change is manufactured by making both a glass substrate and a protection body protecting an organic EL device of a glass material. By making both the protection body and the glass substrate of a glass material, not only can an overall thickness be reduced in comparison with a case of using a metal case, but also a degree of freedom can be heightened drastically in selecting an adhesive used to fix the two substrates in comparison with a case of using a metal case.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 11, 2003
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Kazuki Nishimura, Yuji Hamada