Patents by Inventor Akira Kinno

Akira Kinno 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).

  • Patent number: 6403965
    Abstract: An X-ray image detector system includes: a plurality of scanning lines; a plurality of signal lines formed so as to intersect the scanning lines; and a plurality of pixel parts, each of which is formed at a corresponding one of the intersections between the scanning lines and the signal lines so as to form an array; each of said pixel parts having an X-ray-to-charge converting part for converting an incident X-ray to an electric charge, a pixel electrode for receiving the electric charge from the X-ray-to-charge converting part, and a switching element which is operated on the basis of a signal of a corresponding one of the scanning lines, one end of the switching element being connected to the pixel electrode, and the other end of the switching element being connected to a corresponding one of the signal lines, wherein the X-ray-to-charge converting part includes at least a first X-ray-to-charge converting film, and a second X-ray-to-charge converting film having a lower resistivity than that of the first X-
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: June 11, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsushi Ikeda, Masaki Atsuta, Akira Kinno, Kouhei Suzuki
  • Publication number: 20020036267
    Abstract: Disclosed is a flat panel X-ray detector, comprising an X-ray-electric charge conversion film converting an incident X-ray into an electric charge, a pixel electrode contiguous to the X-ray-electric charge conversion film and arranged for every pixel, a switching element connected to the pixel electrode, a signal line connected to the switching element, and a scanning line supplying a driving signal to the switching element, wherein the X-ray-electric charge conversion film contains phosphor particles, a photosensitive material, and a carrier transfer material.
    Type: Application
    Filed: March 27, 2001
    Publication date: March 28, 2002
    Inventors: Mitsushi Ikeda, Masaki Atsuta, Katsuyuki Naito, Akira Kinno, Hitoshi Yagi, Manabu Tanaka
  • Patent number: 6331844
    Abstract: A liquid crystal display apparatus includes a substrate, a plurality of scanning lines extending substantially in parallel with each other in a row direction on the substrate, a plurality of signal lines extending substantially in parallel with each other in a column direction on the substrate, a signal line driver for supplying a pixel signal of current variables to each of the plurality of signal lines, a scanning line driver for selectively supplying a scanning signal to the plurality of scanning lines, and a plurality of pixels arranged on the substrate at intersections of the plurality of scanning lines and the plurality of signal lines, each of the plurality of pixels including a converter for receiving the pixel signal of current variables, which is supplied to the signal line, and converting the pixel signal into a voltage signal, and a liquid crystal cell to which the converted voltage signal is applied.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: December 18, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Okumura, Akira Kinno, Hisao Fujiwara, Goh Itoh, Norihiko Kamiura
  • Patent number: 6323490
    Abstract: An X-ray semiconductor detector has a pixel array structure in which a plurality of pixel elements are arrayed in a matrix. Each pixel element includes an X-ray/charge conversion film for generating charges in accordance with an incident X-ray, a storage capacitor for storing the signal charges generated in the X-ray/charge conversion film, a signal read transistor for reading the signal charges from the storage capacitor, and a protective diode arranged to remove excessive charges from the storage capacitor and prevent dielectric breakdown of the signal read transistor. The protective diode is arranged below the storage capacitor. Since the protective diode is arranged below the storage capacitor, it does not decrease the pixel density. Since the protective diode is covered with the storage capacitor, it can be shielded from an X-ray. Therefore, variations in OFF current of the protective diode by an X-ray and dielectric breakdown of the protective diode can be prevented.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: November 27, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsushi Ikeda, Manabu Tanaka, Masaki Atsuta, Akira Kinno, Kohei Suzuki, Norihiko Kamiura
  • Publication number: 20010008271
    Abstract: A planar X-ray detector has an X-ray charge conversion film converting an incident X-ray into electric charges, pixel electrodes provided on the X-ray charge conversion film corresponding to respective pixels arranged in an array, switching elements connected to the respective pixel electrodes, signal lines, each of which is connected to a column of switching elements, scanning lines, each of which transmits driving signals to a raw of switching elements, and a common electrode provided on the surface of the X-ray charge conversion film opposite to the surface on which the pixel electrodes are provided. The X-ray charge conversion film contains an X-ray sensitive material made of inorganic semiconductor particles, and a carrier transport material made of an organic semiconductor.
    Type: Application
    Filed: January 10, 2001
    Publication date: July 19, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsushi Ikeda, Masaki Atsuta, Akira Kinno, Manabu Tanaka, Yasuhiro Sugawara
  • Patent number: 6225632
    Abstract: An image detection device having pixel electrodes arrayed in a matrix in an image detection area on one face of an insulating film. A shield electrode is disposed in the peripheral area on the outside the detection area, and a driving circuit for driving the pixel electrodes and wires connecting the pixel electrodes are provided on the other face of the insulating film. The driving circuit may be provided in the peripheral area. The wires disposed in the peripheral area are shielded by the shield electrode to prevent electrostatic breakdown even when a large current flows through a photoelectric converting film, thereby to improve reliability by preventing dielectric breakdown and to accommodate a large dynamic range of incident light.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: May 1, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Kinno, Kouhei Suzuki, Kazuki Taira
  • Patent number: 6219019
    Abstract: In a method for driving a liquid crystal display apparatus which includes liquid crystal having spontaneous polarization disposed between a plurality of pixel electrodes arranged in a matrix form and a common electrode disposed to face the pixel electrodes, the method for driving the liquid crystal display apparatus includes a polarity inversion of periodically inverting polarities of at least one part of voltages applied between the plurality of pixel electrodes and the common electrode, and a write-in operation of applying the voltages to the pixel electrodes to hold display voltages, respectively, corresponding to the applied voltages on the pixel electrode, wherein the polarity inversion is effected to satisfy the expression of TS/TF≧2 when a frame period is set to TF and a period for effecting the polarity inversion is set to TS.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: April 17, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rei Hasegawa, Tatsuo Saishu, Akira Kinno, Kohki Takatoh, Hiroyuki Nagata, Rieko Iida, Haruhiko Okumura, Hisao Fujiwara
  • Patent number: 6185274
    Abstract: An image detecting device has a large dynamic range that deals with a plurality of image detecting modes. The image detecting device is composed of pixels e (i, j) arranged in a matrix array. Each pixel has a photoelectric element. In each pixel, a capacitor 102 and a protecting diode 103 are disposed. The capacitor 102 stores electric charge corresponding to the intensity of penetrated light to the relevant pixel. The protecting diode limits the capacitance. A bias voltage is supplied to the protecting diode 103 through a bias line Bias. The bias voltage is adjusted by a bias voltage controlling system 133 corresponding to the frame rate. Thus, the influence of a leak current in the off-state of the protecting diode 103 can be alleviated against electric charge stored in the capacitor 102. Consequently, an image with a high S/N ratio can be obtained regardless of the frame rate.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: February 6, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Kinno, Masaki Atsuta, Takuya Sakaguchi, Manabu Tanaka, Mitsushi Ikeda, Kouhei Suzuki
  • Patent number: 5981931
    Abstract: An image pick-up device comprises an insulating substrate, and a plurality of pixels each including a photo-electric conversion circuit, a thin-film transistor connected to the photoelectric conversion circuit and including a lamination of an insulating film and a semiconductor film, the pixels being mounted in an array on the insulating substrate. A plurality of signal lines read the voltage store in the photoelectric conversion circuit through the thin-film transistors formed on the insulating substrate. A plurality of wirings are formed on the insulating substrate. An insulating film having the same lamination as the thin-film transistor is formed between the wiring and the signal line at each crossing thereof.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: November 9, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Kinno, Norihiko Kamiura
  • Patent number: 5801797
    Abstract: The image display apparatus is capable of displaying an image on a large screen in which non-display regions are completely eliminated or minimized. The image display apparatus comprises an opposite board in which common electrodes made of transparent conductive resin are respectively formed on both surfaces of a transparent substrate. A plurality of array boards in each of which semiconductor element and a signal line are formed on a transparent substrate are arranged on both surfaces of the opposite board, such that display regions of end portions of the array boards face each other a sandwich of the opposite board inserted therebetween. Frame-like sealing members made of transparent resin are respectively inserted in clearances between the opposite board and the array boards. Liquid crystal is enclosed in each of spaces surrounded by the frame-like sealing members between the opposite board and the array boards.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: September 1, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Atsuko Iida, Tatsuro Uchida, Akira Kinno, Masayuki Saito, Yukio Kizaki, Takeshi Miyagi, Miki Mori, Yumi Fukuda
  • Patent number: 5796447
    Abstract: A plurality of pixels are arrayed in a matrix format on the liquid crystal panel of a liquid crystal display. GH liquid crystal layers and transparent electrodes for displaying a plurality of different colors are alternately stacked on a reflecting plate, and therefore each pixel has three liquid crystal layers. Pieces of potential information supplied to the respective liquid crystal layers are controlled by switching elements connected to signal lines and scanning lines. The signal lines and the scanning lines are respectively connected to driving ICs, which are connected to a signal processing circuit. In each pixel, while the potential information of one liquid crystal layer is controlled, the remaining liquid crystal layers are set in a floating state.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: August 18, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhiko Okumura, Hisao Fujiwara, Goh Itoh, Akira Kinno