Patents by Inventor Hiroshi Kakigi

Hiroshi Kakigi 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).

  • Glass funnel and glass bulb for cathode ray tube
    Patent number: 7026752
    Abstract: A body portion of the funnel has a first region of dimension h, the dimension h being measured from the seal edge surface in a direction parallel to a tube axis, and a second region excluding the first region. The second region has a thickness relatively smaller than the thickness of the first region, so that a boundary portion between the two regions forms a stepped portion on the external surface of the body portion.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: April 11, 2006
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Masaya Kyono, Hiroshi Kakigi
  • Glass funnel for cathode-ray tube and glass bulb for cathode-ray tube
    Patent number: 7005790
    Abstract: A body portion of the funnel, within a range excluding corners, has a first region of predetermined dimension, the predetermined dimension being measured from the seal edge surface in a direction parallel to a tube axis, and a second region excluding the first region. The second region has a thickness relatively smaller than the thickness of the first region, so that a boundary portion between the two regions forms a stepped portion on the external surface of the body portion.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: February 28, 2006
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Masaya Kyono, Hiroshi Kakigi
  • Funnel for cathode ray tube and mold for making the same
    Patent number: 6956321
    Abstract: The reference surface of the positioning reference on the funnel is formed as a flat plane from a mold match line towards a small-diameter opening side. In addition, the reference surface of the positioning reference is formed in parallel with or in a direction near a central axis line of the funnel from the mold match line towards the small-diameter opening side with respect to a plane which is in parallel with the central axis line and includes the mold match line.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: October 18, 2005
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventor: Hiroshi Kakigi
  • Funnel for cathode ray tube
    Patent number: 6861795
    Abstract: A funnel for a cathode ray tube has a relationship 0<?(z)<d in an arbitrary cross section P(z) parallel with a plane including an open end portion, where ?(z) is an angle (°) defined between a line and a major axis (LA) of the funnel, the line being connecting an outermost part D(z) on at least one of an outer surface and an inner surface of the body portion and a center axis (C) of the funnel, and d is an angle (°) defined between a diagonal axis (DA) of the funnel and the major axis (LA).
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: March 1, 2005
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventor: Hiroshi Kakigi
  • Glass funnel and glass bulb for cathode ray tube
    Publication number: 20040090559
    Abstract: A body portion of the funnel has a first region of dimension h, the dimension h being measured from the seal edge surface in a direction parallel to a tube axis, and a second region excluding the first region. The second region has a thickness relatively smaller than the thickness of the first region, so that a boundary portion between the two regions forms a stepped portion on the external surface of the body portion.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 13, 2004
    Inventors: Masaya Kyono, Hiroshi Kakigi
  • Funnel for cathode ray tube
    Patent number: 6727641
    Abstract: A diagonal inner-face curved portion is formed on an inner face of a diagonal portion of a pyramid-shaped yoke portion. The diagonal inner-face curved portion is formed to make at least one of partially inner-face curved portions at the major axis side and the minor axis side of the diagonal axis swell to the outward side. The partially inner-face curved portions at the major axis side and the minor axis side are formed by circular arced portions with different radii to each other.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: April 27, 2004
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventor: Hiroshi Kakigi
  • Glass funnel for cathode-ray tube and glass bulb for cathode-ray tube
    Publication number: 20040027045
    Abstract: A body portion of the funnel, within a range excluding corners, has a first region of predetermined dimension, the predetermined dimension being measured from the seal edge surface in a direction parallel to a tube axis, and a second region excluding the first region. The second region has a thickness relatively smaller than the thickness of the first region, so that a boundary portion between the two regions forms a stepped portion on the external surface of the body portion.
    Type: Application
    Filed: September 8, 2003
    Publication date: February 12, 2004
    Inventors: Masaya Kyono, Hiroshi Kakigi
  • Funnel for cathode ray tube
    Publication number: 20030132696
    Abstract: A diagonal inner-face curved portion is formed on an inner face of a diagonal portion of a pyramid-shaped yoke portion. The diagonal inner-face curved portion is formed to make at least one of partially inner-face curved portions at the major axis side and the minor axis side of the diagonal axis swell to the outward side. The partially inner-face curved portions at the major axis side and the minor axis side are formed by circular arced portions with different radii to each other.
    Type: Application
    Filed: December 24, 2002
    Publication date: July 17, 2003
    Inventor: Hiroshi Kakigi
  • Funnel for cathode ray tube and mold for making the same
    Publication number: 20030062820
    Abstract: The reference surface of the positioning reference on the funnel is formed as a flat plane from a mold match line towards a small-diameter opening side. In addition, the reference surface of the positioning reference is formed in parallel with or in a direction near a central axis line of the funnel from the mold match line towards the small-diameter opening side with respect to a plane which is in parallel with the central axis line and includes the mold match line.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 3, 2003
    Inventor: Hiroshi Kakigi
  • Funnel for cathode ray tube
    Publication number: 20020180333
    Abstract: A funnel for a cathode ray tube has a relationship 0<&agr;(z)<d in an arbitrary cross section P(z) parallel with a plane including an open end portion, where &agr;(z) is an angle (° ) defined between a line and a major axis (LA) of the funnel, the line being connecting an outermost part D(z) on at least one of an outer surface and an inner surface of the body portion and a center axis (C) of the funnel, and d is an angle (° ) defined between a diagonal axis (DA) of the funnel and the major axis (LA).
    Type: Application
    Filed: April 17, 2002
    Publication date: December 5, 2002
    Inventor: Hiroshi Kakigi