Patents by Inventor Takashi Chuman

Takashi Chuman 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: 20040251841
    Abstract: An electron emitting device includes an electron-supply layer made of at least one of silicon, a mixture containing silicon as a main component and a silicon compound in an amorphous phase, an insulator layer formed on the electron-supply layer and a thin-film metal electrode formed on the insulator layer. Electrons are emitted upon application of an electric field between the electron-supply layer and the thin-film metal electrode. The insulator layer has at least one island region that constitutes an electron emitting section in which the film thickness of the insulator layer is gradually reduced. The electron emitting device further includes a carbon region made of at least of carbon, a mixture containing carbon as a main component and a carbon compound on at least one of a top, bottom and inside of the island region.
    Type: Application
    Filed: May 24, 2004
    Publication date: December 16, 2004
    Inventors: Nobuyasu Negishi, Takashi Yamada, Takamasa Yoshikawa, Kiyohide Ogasawara, Hideo Sato, Takashi Chuman, Shingo Iwasaki, Kazuto Sakemura, Takuya Hata
  • Publication number: 20040217989
    Abstract: A three-dimensional image display device including at least one transmissive light-emitting display panel and a second light-emitting display panel located behind the transmissive panel. The transmissive panel has a plurality of light-emitting portions arranged in two dimensions and classified into plural linear groups. The transmissive panel has a plurality of bus lines each of which is connected to and overlapping with the light-emitting portions in per group. Each light-emitting portion includes a light-emitting layer made of an organic compound exhibiting electroluminescence. Each overlapped portion of the bus line has an area equal to or smaller than 5% of an area of each of the light-emitting portions.
    Type: Application
    Filed: January 22, 2004
    Publication date: November 4, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Takuya Hata, Atsushi Yoshizawa
  • Publication number: 20040212551
    Abstract: A three-dimensional image display device including at least one transmissive light-emitting display panel and a second light-emitting display panel located behind the transmissive panel. Each of the transmissive and second light-emitting display panels has patterned conductors each extending in a horizontal or vertical direction. Each patterned conductor includes a plurality of light-emitting portions and a bus line extending in the horizontal or vertical direction and bridged and connected to the light-emitting portions so that the light-emitting portions of patterned conductors are arranged in two dimensions. Each light-emitting portion includes a light-emitting layer made of an organic compound exhibiting electroluminescence. Each patterned conductor is formed into a zigzag.
    Type: Application
    Filed: January 23, 2004
    Publication date: October 28, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Yoshiyuki Okuda, Atsushi Yoshizawa, Hideo Satoh, Takashi Chuman, Takuya Hata, Yoshihiko Uchida
  • Patent number: 6787992
    Abstract: A display device has an emitting region constituted by a plurality of first electrodes provided on a substrate and extending in parallel, a plurality of second electrodes provided on the first electrodes and extending substantially perpendicularly to the first electrodes, and a plurality of emission sites for emitting electrons or light respectively connected to a plurality of intersections between the first and second electrodes and arranged on the substrate and has a peripheral region surrounding the emitting region on the substrate. In this display device, first and second groups of external repeating terminals for the first and second electrodes are collectively provided side by side in a part of the peripheral region.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 7, 2004
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Takamasa Yoshikawa, Takuya Hata, Kazuto Sakemura, Takashi Yamada, Nobuyasu Negishi, Shingo Iwasaki, Hideo Satoh, Atsushi Yoshizawa, Kiyohide Ogasawara
  • Publication number: 20040169619
    Abstract: A display apparatus (1) for generating a stereoscopic image by superimposing a plurality of images at a predetermined interval from each other on the view line of the viewer, the apparatus comprising: a first display unit (11) having a plurality of emission areas (11-1) for emitting a light, disposed in a discrete manner in a plane of a display screen and a plurality of transmission areas (11-2) for transmitting a light, disposed in a discrete manner in the plane of the display screen except for areas occupied by said plurality of emission areas; and a second display unit (12) disposed behind the first display unit as seen from the viewer.
    Type: Application
    Filed: January 22, 2004
    Publication date: September 2, 2004
    Inventors: Takuya Hata, Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Atsushi Yoshizawa
  • Publication number: 20040160535
    Abstract: An apparatus for displaying a three-dimensional image of an object to be displayed, through a superimposing of a plurality of images of the object, which are placed so as to be apart from each other on a line of sight of an observer, comprises: the first display unit, the second display unit and an optical transmission unit. The first display unit has the first screen. The second display unit is disposed so as to face the first display unit. The second display unit has the second screen, which is light-transmissible. The optical transmission unit is disposed between the first display unit and the second display unit, to transmit light, which is emitted from portions of the first screen, to respective portions of the second screen.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 19, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Atsushi Yoshizawa, Takuya Hata, Shuuichi Yanagisawa
  • Publication number: 20040160177
    Abstract: An EL display panel capable of presenting a smaller and lighter 3D display apparatus, wherein EL element units (60, 70) including transparent electrodes (61, 71), organic EL layers (64, 74), Al electrodes (65), ITO electrodes (75) and the like are provided for either side of a light transmissive substrate (51). Thereby, a 3D stereoscopic image can be generated and displayed by superimposing a 2D image generated by the EL element unit (60) and a 2D image generated by the EL element unit (70), and controlling the brightness of each image for each pixel.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 19, 2004
    Inventors: Yoshihiko Uchida, Takuya Hata, Hideo Satoh, Atsushi Yoshizawa, Shuuichi Yanagisawa, Takashi Chuman
  • Publication number: 20040150584
    Abstract: An apparatus for displaying a three-dimensional image of an object to be displayed, through a superimposing of a plurality of images of the object, which are placed so as to be apart from each other on a line of sight of an observer, comprises: the first display unit; the second display unit; and a bonding member. The first display unit has a first screen. The second display unit is disposed so as to face the first display unit. The second display unit has the second screen, which is light-transmissible. The bonding member connects the first display unit and the second display unit with each other. The bonding member has a light transmission property and is a bonding agent with which a space between the first display unit and the second display unit is filled.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Atsushi Yoshizawa, Takuya Hata, Shuuichi Yanagisawa
  • Publication number: 20040150792
    Abstract: A stereoscopic image display apparatus includes at least two linear image display devices which respectively display linear images in response to image signals. The two linear image display devices are periodically moved by a mechanical scan mechanism along a plurality of locus planes substantially parallel to each other. The mechanical scan mechanism may have a configuration which belt-drives the at least two linear image display devices fixed to a belt, or a configuration which rotationally drives the at least two linear image display devices provided on a disc. The stereoscopic image display apparatus can display a bright and extremely clear stereoscopic image without using a complicated optical system and a light transmissible display panel.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Applicant: Pioneer Corporation
    Inventors: Hideo Satoh, Takashi Chuman, Yoshihiko Uchida, Atsushi Yoshizawa, Takuya Hata
  • Publication number: 20040145537
    Abstract: A three-dimensional image displaying device includes a front display unit and a rear display unit. The front display unit includes at least one transparent display screen. The display screen includes a plurality of organic electroluminescent elements. A spacer is provided between the front and rear display units.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 29, 2004
    Applicant: Pioneer Corporation
    Inventors: Atsushi Yoshizawa, Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Takuya Hata
  • Publication number: 20040144317
    Abstract: A mask assembly includes a frame and at least one linear element secured onto the frame. The linear elements define a masking part. The masking part has at least one opening. The openings are made by removing predetermined linear elements from those secured to the frame.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 29, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Takuya Hata, Atsushi Yoshizawa
  • Publication number: 20040145538
    Abstract: A three-dimensional image display device in which at least two light-emitting display panels of a light permeable type are arranged in parallel in a normal direction of the front surface of the device, and a semi-transparent member is provided for reducing light emission from a light-emitting display panel located in the front to the other display panel located in the rear, preventing display images from blurring.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 29, 2004
    Applicant: Pioneer Corporation
    Inventors: Yoshihiko Uchida, Takuya Hata, Takashi Chuman, Hideo Satoh, Atsushi Yoshizawa
  • Patent number: 6744063
    Abstract: An image pickup device includes a pair of first and second substrate facing each other with a vacuum space interposed therebetween, and a plurality of electron-emitting devices provided over said first substrate and a photoconductive layer provided over said second substrate. Each electron-emitting device includes an insulating layer deposited over an electron source layer formed over an ohmic electrode; and a metal thin film electrode deposited over said insulating layer. The insulating layer and said metal thin film electrode have an island region of electron-emitting section in which their film thicknesses are gradually reduced toward said electron source layer.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: June 1, 2004
    Assignee: Pioneer Corporation
    Inventors: Takamasa Yoshikawa, Hideo Satoh, Atsushi Yoshizawa, Takashi Yamada, Takashi Chuman, Nobuyasu Negishi, Shingo Iwasaki, Kazuto Sakemura, Takuya Hata, Kiyohide Ogasawara
  • Patent number: 6700132
    Abstract: A display device includes a backside and a front-side substrates facing each other with a vacuum space therebetween; and a plurality of electron emission sites provided on the backside substrate. Each electron emission sites includes a bottom electrode formed on a surface of the backside substrate proximate to the vacuum space, an insulator layer formed over the bottom electrode, and a top electrode formed on the insulator layer and arranged individually apart from each other and facing the vacuum space. The display device also includes a plurality of bus electrodes for electrically connecting the neighboring top electrodes; and insulating protective films each provided between the bus electrode and the insulator layer and between the bus electrode and the backside substrate.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: March 2, 2004
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Takamasa Yoshikawa, Takuya Hata, Kazuto Sakemura, Takashi Yamada, Nobuyasu Negishi, Shingo Iwasaki, Hideo Satoh, Atsushi Yoshizawa, Kiyohide Ogasawara
  • Publication number: 20030048745
    Abstract: An image pickup device includes a pair of first and second substrate facing each other with a vacuum space interposed therebetween, and a plurality of electron-emitting devices provided over said first substrate and a photoconductive layer provided over said second substrate. Each electron-emitting device includes an insulating layer deposited over an electron source layer formed over an ohmic electrode; and a metal thin film electrode deposited over said insulating layer. The insulating layer and said metal thin film electrode have an island region of electron-emitting section in which their film thicknesses are gradually reduced toward said electron source layer.
    Type: Application
    Filed: January 5, 2001
    Publication date: March 13, 2003
    Applicant: Pioneer Corporation
    Inventors: Takamasa Yoshikawa, Hideo Satoh, Atsushi Yoshizawa, Takashi Yamada, Takashi Chuman, Nobuyasu Negishi, Shingo Iwasaki, Kazuto Sakemura, Takuya Hata, Kiyohide Ogasawara
  • Patent number: 6472803
    Abstract: An electron emission light-emitting device comprises an electron emission device and a fluorescent material layer formed on the thin-film metal. The electron emission device comprises an electron-supply layer made of semiconductor formed on an ohmic electrode; an insulator layer formed on the electron-supply layer; and a thin-film metal electrode formed on the insulator layer. The electron emission light-emitting device emits light when an electric field is applied between the electron-supply layer and the thin-film metal.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: October 29, 2002
    Assignee: Pioneer Corporation
    Inventors: Atsushi Yoshizawa, Hideo Satoh, Takashi Yamada, Takashi Chuman, Nobuyasu Negishi, Shingo Iwasaki, Takuya Hata, Takamasa Yoshikawa, Hiroshi Ito, Kiyohide Ogasawara
  • Publication number: 20020125490
    Abstract: A display device includes a backside and a front-side substrates facing each other with a vacuum space therebetween; and a plurality of electron emission sites provided on the backside substrate. Each electron emission sites includes a bottom electrode formed on a surface of the backside substrate proximate to the vacuum space, an insulator layer formed over the bottom electrode, and a top electrode formed on the insulator layer and arranged individually apart from each other and facing the vacuum space. The display device also includes a plurality of bus electrodes for electrically connecting the neighboring top electrodes; and insulating protective films each provided between the bus electrode and the insulator layer and between the bus electrode and the backside substrate.
    Type: Application
    Filed: December 28, 2001
    Publication date: September 12, 2002
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Takamasa Yoshikawa, Takuya Hata, Kazuto Sakemura, Takashi Yamada, Nobuyasu Negishi, Shingo Iwasaki, Hideo Satoh, Atsushi Yoshizawa, Kiyohide Ogasawara
  • Publication number: 20020117963
    Abstract: A display device has an emitting region constituted by a plurality of first electrodes provided on a substrate and extending in parallel, a plurality of second electrodes provided on the first electrodes and extending substantially perpendicularly to the first electrodes, and a plurality of emission sites for emitting electrons or light respectively connected to a plurality of intersections between the first and second electrodes and arranged on the substrate and has a peripheral region surrounding the emitting region on the substrate. In this display device, first and second groups of external repeating terminals for the first and second electrodes are collectively provided side by side in a part of the peripheral region.
    Type: Application
    Filed: December 28, 2001
    Publication date: August 29, 2002
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Takamasa Yoshikawa, Takuya Hata, Kazuto Sakemura, Takashi Yamada, Nobuyasu Negishi, Shingo Iwasaki, Hideo Satoh, Atsushi Yoshizawa, Kiyohide Ogasawara
  • Publication number: 20020076070
    Abstract: A speaker includes a silicone wafer 1, a thermal barrier layer 2 formed by anodizing a part of the silicone wafer 1, and an exothermic electrode 3 made of aluminum formed on the thermal barrier layer 2.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 20, 2002
    Applicant: PIONEER CORPORATION
    Inventors: Takamasa Yoshikawa, Kiyohide Ogasawara, Hideo Satoh, Atsushi Yoshizawa, Shingo Iwasaki, Nobuyasu Negishi, Takashi Yamada, Takashi Chuman, Kazuto Sakemura, Takuya Hata
  • Patent number: 6404124
    Abstract: An electron emission device comprises an electron-supply layer made of metal or semiconductor and disposed on an ohmic electrode; an insulator layer formed on the electron-supply layer; and a thin-film metal electrode formed on the insulator layer. The electron-supply layer has a rectifier function layer, whereby the electron emission device emits electrons when an electric field is applied between the electron-supply layer and the thin-film metal.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: June 11, 2002
    Assignee: Pioneer Electronic Corporation
    Inventors: Kazuto Sakemura, Shuuichi Yanagisawa, Shingo Iwasaki, Nobuyasu Negishi, Takashi Chuman, Takashi Yamada, Atsushi Yoshizawa, Hideo Satoh, Takamasa Yoshikawa, Kiyohide Ogasawara