Patents by Inventor Juichi Sasada

Juichi Sasada 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).

  • Method for recycling cathode ray tube bulb
    Patent number: 6752675
    Abstract: The present invention presents a method for recycling a cathode ray tube bulb comprising a panel and a funnel fritted together with a frit glass. The panel and the funnel are separated by dissolving at least a portion of the frit glass with a solution of an organic acid, such as an aqueous carboxylic acid solution, and a cathode ray tube bulb is obtained using at least one of the panel and the funnel.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: June 22, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Saimoto, Juichi Sasada, Masaki Mishima, Hideaki Tokiyasu, Hidefumi Okada, Ikuko Aoki
  • Method for recycling cathode ray tube bulb
    Publication number: 20030124943
    Abstract: The present invention presents a method for recycling a cathode ray tube bulb comprising a panel and a funnel fritted together with a frit glass. The panel and the funnel are separated by dissolving at least a portion of the frit glass with a solution of an organic acid, such as an aqueous carboxylic acid solution, and a cathode ray tube bulb is obtained using at least one of the panel and the funnel.
    Type: Application
    Filed: April 9, 2001
    Publication date: July 3, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Saimoto, Juichi Sasada, Masaki Mishima, Hideaki Tokiyasu, Hidefumi Okada, Ikuko Aoki
  • Method and unit for regeneration of solution for cleaning glass, method and unit for cleaning silicate glass, and cathode-ray tube
    Patent number: 6521575
    Abstract: A treatment solution (2) containing fluoride is added to a cleaning solution (1) drained from a cleaning tank (11). Fluoride is allowed to react with fluorosilicic acid in the cleaning solution to settle a precipitate (4) containing fluorosilicate, and the precipitate (4) is removed. The cleaning solution regenerated in a regeneration apparatus (10) is again returned to the cleaning tank (11), and used as a cleaning solution for a CRT panel (20).
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: February 18, 2003
    Assignees: Matsushita Electric Industrial Co., Ltd., Kaken Co.
    Inventors: Kenji Fujiwara, Hisanori Yatoh, Masao Gotoh, Juichi Sasada, Masanori Yamauchi, Katsuyoshi Tatenuma, Osamu Arai, Takuji Taguchi
  • Fluorescent lamp with a mixed layer containing phosphor and metal oxide
    Patent number: 5869927
    Abstract: A highly safe fluorescent lamp is disclosed, in a mixed layer having couplings of phosphors and a metal oxide such as yttrium oxide is formed on the inner surface of a glass bulb. The couplings of the mixed layer strongly couples the grains arranged in crosslinked state between the phosphor grains of the phosphor material. A first thin film of the metal oxide is formed between the glass bulb and the mixed layer. A second thin film of the same metal oxide is formed on the inner surface of the mixed layer nearer to the bulb center. The amount of mercury sealed in the glass bulb thus is reduced, thereby minimizing the mercury consumption which has so far been the problem against environmental protection.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: February 9, 1999
    Assignee: Matsushita Electronics Corporation
    Inventors: Kazuhiro Matsuo, Yasuhiro Ikai, Juichi Sasada
  • Method for extracting organic substance, solvent for use in said method, and method for measuring content of organic substance
    Patent number: 5714071
    Abstract: A method for extracting an organic substance from a material by extracting the organic substance with a mixed solvent which contains at least one polar solvent and at least one nonpolar solvent, by which a wide variety of organic substances can be extracted without using a halohydrocarbon at a relatively low temperature.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: February 3, 1998
    Assignee: Matsushita Electronics Corporation
    Inventors: Kazuhiro Matsuo, Juichi Sasada