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: 20210242421
    Abstract: A plurality of light-emitting devices (10) include a plurality of light-emitting devices (10a), a plurality of light-emitting devices (10b), and a plurality of light-emitting devices (10c). The plurality of light-emitting devices (10) are aligned on a reflecting member (20). Six light-emitting devices (10c) are aligned in a straight line along one direction. Four light-emitting devices (10b) are aligned surrounding a region facing one ends of the six light-emitting devices (10c). Each of four light-emitting devices (10a) are aligned with each of the four light-emitting devices (10b) outside the four light-emitting devices (10b).
    Type: Application
    Filed: October 19, 2018
    Publication date: August 5, 2021
    Inventors: Takeru OKADA, Chihiro HARADA, Ayako YOSHIDA, Takashi CHUMAN
  • Publication number: 20200152900
    Abstract: A light-emitting device (20) includes a first light-emitting member (10a) and a second light-emitting member (10b). Each of the first light-emitting member (10a) and the second light-emitting member (10b) includes a first surface (12) and a second surface (14), and light is emitted from the first surface (12). The first light-emitting member (10a) includes a first region (16a) and a second region (16b), the first region (16a) of the first light-emitting member (10a) being located on the second surface (14) side of the second light-emitting member (10b) and the second region (16b) of the first light-emitting member (10a) being located on the first surface (12) side of the second light-emitting member (10b).
    Type: Application
    Filed: May 9, 2018
    Publication date: May 14, 2020
    Applicant: PIONEER CORPORATION
    Inventors: Ayako YOSHIDA, Takashi CHUMAN, Makoto MATSUKAWA, Takeru OKADA, Chihiro HARADA, Akira HIRASAWA
  • Publication number: 20190372050
    Abstract: A light emitting device (10) includes a light emitting portion (140), a first terminal (203), a second terminal (204), a first interconnect (191), and a second interconnect (192). The light emitting portion (140) is disposed on a first surface (101) side of a substrate (100), and has a laminated structure including a first electrode (110), an organic layer (120), and a second electrode (130). The first terminal (203) is disposed over a first end portion (103) of the substrate (100), and is electrically connected to the first electrode (110) or the second electrode (130). The second terminal (204) is disposed over a second end portion (104) of the substrate (100) facing the first end portion (103), and is connected to the first electrode (110) or the second electrode (130). The first interconnect (191) is connected to the first terminal (203) so as to extend in a direction different from a direction toward the second end portion (104).
    Type: Application
    Filed: February 9, 2018
    Publication date: December 5, 2019
    Inventors: Ayako YOSHIDA, Takeru OKADA, Takashi CHUMAN
  • Publication number: 20170213993
    Abstract: The optical device (100) is, for example, a light emitting device or a photoelectric conversion device (for example, a solar battery), and includes a substrate (110), a conductive section (124), a first electrode (120), a functional layer (130), and a second electrode (140). The conductive section (124) is formed on a first surface (112) of the substrate (110). The first electrode (120) covers the first surface (112) of the substrate (110) and the conductive section (124). The second electrode (140) overlaps the first electrode (120). The functional layer (130) is located between the first electrode (120) and the second electrode (140). The conductive section (124) has a configuration in which a first layer (210) and a second layer (220) are laminated in this order. An upper surface of an end part (222) of the second layer (220) is inclined in a direction approaching the first surface (112).
    Type: Application
    Filed: July 29, 2014
    Publication date: July 27, 2017
    Inventor: Takashi CHUMAN
  • Patent number: 8049404
    Abstract: An active matrix drive organic EL display panel comprising an organic TFT with a configuration that prevents the occurrence of current leak, and a manufacturing method thereof are proposed. The organic EL display panel comprises: a substrate; an organic EL element comprising in order from the substrate, a first display electrode, an organic functional layer and a second display electrode; and an organic TFT for driving and controlling the organic EL element comprising in order from the substrate a gate electrode, a gate insulation film, source/drain electrodes, and an organic semiconductor layer.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: November 1, 2011
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Satoru Ohta, Chihiro Harada
  • Patent number: 7968458
    Abstract: A production process for making an electronic circuit substrate comprising: a patterning step of forming a respectively anodically oxidizable conductor pattern and distribution pattern connected to the conductor pattern on a substrate; and an anodic oxidation step of generating an oxide film from the conductor pattern and the distribution pattern by contacting an electrolyte solution with the conductor pattern and the distribution pattern and carrying out anodic oxidation while applying current thereto, the patterns serving as anodes, wherein the width or film thickness of the distribution pattern is at least partially set so that an insulator portion is formed in the anodic oxidation step in which an oxide film formed on one of the side walls of the distribution pattern is integrated with an oxide film formed on the other side wall.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: June 28, 2011
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Satoru Ohta, Satoshi Miyaguchi
  • Publication number: 20100238142
    Abstract: An active matrix drive organic EL display panel comprising an organic TFT with a configuration that prevents the occurrence of current leak, and a manufacturing method thereof are proposed. The organic EL display panel comprises: a substrate; an organic EL element comprising in order from the substrate, a first display electrode, an organic functional layer and a second display electrode; and an organic TFT for driving and controlling the organic EL element comprising in order from the substrate a gate electrode, a gate insulation film, source/drain electrodes, and an organic semiconductor layer.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 23, 2010
    Applicant: PIONEER CORPORATION
    Inventors: Takashi Chuman, Satoru Ohta, Chihiro Harada
  • Publication number: 20100096621
    Abstract: [PROBLEMS] To provide an organic transistor in which high-resolution patterning can be performed, favorable contact can be achieved, and a leakage current can be prevented. [SOLVING MEANS] An organic transistor includes a substrate 1, a gate electrode 2 formed on the substrate 1, a gate insulating layer formed on the gate electrode 2, a source electrode 4 and a drain electrode 5 formed on the gate insulating layer 3, an organic semiconductor layer 6 provided between the source electrode 2 and the drain electrode 3 and opposite to the gate electrode 2 with the gate insulating layer 3 interposed between them, and an insulating layer 7 having an opening portion 7a which defines the area where the organic semiconductor layer 6 is formed. The organic semiconductor layer 6 is formed through evaporation by using a low-molecular organic semiconductor material such as pentacen.
    Type: Application
    Filed: March 23, 2007
    Publication date: April 22, 2010
    Inventor: Takashi Chuman
  • Publication number: 20100090204
    Abstract: [Problems] To form an organic semiconductor layer more uniformly in a channel region by allowing formation of a pattern with a higher resolution in an organic semiconductor element. [Solving Means] An organic semiconductor element includes a gate electrode 2 formed on a substrate 1, a gate insulating layer 3 formed on the gate electrode 2, a source electrode 4 and a drain electrode 5 formed on the gate insulating layer 3, and an organic semiconductor layer 6 placed between the source and drain electrodes 4 and 5 and opposite to the gate electrode 2 with the gate insulating layer 3 interposed therebetween. A barrier 7 is formed on the surfaces of the source and drain electrodes 4 and 5 at least except for a channel region formed between the source and drain electrode 4 and 5. The barrier 7 has a surface energy level lower than that of the channel region.
    Type: Application
    Filed: March 26, 2007
    Publication date: April 15, 2010
    Inventors: Takashi Chuman, Chihiro Harada
  • Publication number: 20090090906
    Abstract: An organic TFT device in which a plurality of organic TFTs can be formed in a narrow region and a manufacturing method therefor are proposed. The organic TFT device comprises a substrate, and a plurality of organic TFTs disposed in a transistor region on the substrate. The organic TFT device further comprises: a bank enclosing the transistor region and having a single opening; and a single organic semiconductor layer demarcated by the bank and forming a channel for the organic TFTs.
    Type: Application
    Filed: March 23, 2007
    Publication date: April 9, 2009
    Applicant: Pioneer Corporation
    Inventor: Takashi Chuman
  • Publication number: 20090072734
    Abstract: It is an object to provide an organic EL display device having the organic transistor of less performance deterioration, a method of manufacturing the organic EL display device, an organic transistor, and a method of manufacturing the organic transistor. The organic EL display device P1 covers the organic transistor 50 and has a protection film 20 protecting the organic transistor. Between the protection film 20 and the surface of the organic transistor 50, a conductive layer (an negative electrode of the organic EL element 100) 18 having conductivity is formed and an insulation film 72 insulating the surface of the organic transistor 50 and the conductive layer 18 is formed on the side of the surface of the organic transistor 50 but the conductive layer 18.
    Type: Application
    Filed: March 24, 2006
    Publication date: March 19, 2009
    Applicant: PIONEER CORPORATION
    Inventors: Chihiro Harada, Takashi Chuman, Satoru Ohta, Atsushi Yoshizawa
  • Publication number: 20080124522
    Abstract: A production process for making an electronic circuit substrate comprising: a patterning step of forming a respectively anodically oxidizable conductor pattern and distribution pattern connected to the conductor pattern on a substrate; and an anodic oxidation step of generating an oxide film from the conductor pattern and the distribution pattern by contacting an electrolyte solution with the conductor pattern and the distribution pattern and carrying out anodic oxidation while applying current thereto, the patterns serving as anodes, wherein the width or film thickness of the distribution pattern is at least partially set so that an insulator portion is formed in the anodic oxidation step in which an oxide film formed on one of the side walls of the distribution pattern is integrated with an oxide film formed on the other side wall.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 29, 2008
    Inventors: Takashi Chuman, Satoru Ohta, Satoshi Miyaguchi
  • Patent number: 7355563
    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: Grant
    Filed: January 22, 2004
    Date of Patent: April 8, 2008
    Assignee: Pioneer Corporation
    Inventors: Takuya Hata, Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Atsushi Yoshizawa
  • Patent number: 7345658
    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: Grant
    Filed: January 22, 2004
    Date of Patent: March 18, 2008
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Takuya Hata, Atsushi Yoshizawa
  • Publication number: 20070194312
    Abstract: There is provided a subpixel that is free from an increase in its overall size and can ensure a large size of its display portion, even when easily producible and inexpensive organic or amorphous Si thin film transistors are used. The subpixel includes one display portion and a plurality of thin film transistors for driving the display portion, wherein the plurality of thin film transistors are arranged such that their channels are in parallel to each another.
    Type: Application
    Filed: March 14, 2005
    Publication date: August 23, 2007
    Inventors: Takashi Chuman, Satoru Ohta, Takahisa Tanabe
  • Patent number: 7206112
    Abstract: An image display device includes at least one transmissive display panel arranged at different depth positions in a direction normal to a display surface of the image display device. Each of the transmissive display panels includes a light-emitting layer that is sandwiched between a front side transmissive film and a rear side transmissive film. The rear side transmissive film has an interface with a maximum refractive index difference that causes an efficiency of light emitted from the light-emitting layer to become smaller than a front side light emission efficiency in the characteristics of light-emission efficiency, which changes with respect to a film thickness of the transmissive film due to optical interference.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: April 17, 2007
    Assignee: Pioneer Corporation
    Inventors: Atsushi Yoshizawa, Takashi Chuman, Takuya Hata, Yoshihiko Uchida, Hideo Satoh, Shuuichi Yanagisawa
  • Patent number: 7189480
    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: Grant
    Filed: January 5, 2004
    Date of Patent: March 13, 2007
    Assignee: Pioneer Corporation
    Inventors: Takashi Chuman, Yoshihiko Uchida, Hideo Satoh, Takuya Hata, Atsushi Yoshizawa
  • Patent number: 7165841
    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: Grant
    Filed: January 22, 2004
    Date of Patent: January 23, 2007
    Assignee: Pioneer Corporation
    Inventors: Hideo Satoh, Takashi Chuman, Yoshihiko Uchida, Atsushi Yoshizawa, Takuya Hata
  • Patent number: 7095040
    Abstract: An electron-emitting device includes an electron source layer made of a metal, a metal alloy or a semiconductor, an insulating layer formed on the electron source layer and a metal thin film electrode formed on the insulating layer. Electrons are emitted upon application of an electric field between the electron source layer and the metal thin film electrode. The insulating layer has at least one island region which constitutes an electron-emitting section in which the film thickness of the insulating layer is gradually reduced. The electron-emitting device further includes a carbon region made of carbon or a carbon compound on at least one of a top, bottom and inside of the island region.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: August 22, 2006
    Assignee: Pioneer Corporation
    Inventors: Shingo Iwasaki, Takashi Yamada, Takuya Hata, Takashi Chuman, Nobuyasu Negishi, Kazuto Sakemura, Atsushi Yoshizawa, Hideo Satoh, Takamasa Yoshikawa, Kiyohide Ogasawara
  • Publication number: 20050151480
    Abstract: An image display device includes at least one transmissive display panel arranged at different depth positions in a direction normal to a display surface of the image display device. Each of the transmissive display panels includes a light-emitting layer that is sandwiched between a front side transmissive film and a rear side transmissive film. The rear side transmissive film has an interface with a maximum refractive index difference that causes an efficiency of light emitted from the light-emitting layer to become smaller than a front side light emission efficiency in the characteristics of light-emission efficiency, which changes with respect to a film thickness of the transmissive film due to optical interference.
    Type: Application
    Filed: September 19, 2003
    Publication date: July 14, 2005
    Inventors: Atsushi Yoshizawa, Takashi Chuman, Takuya Hata, Yoshihiko Uchida, Hideo Satoh, Shuuichi Yanagisawa