Patents by Inventor Yoshiaki Kai

Yoshiaki Kai 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: 7888870
    Abstract: A plasma display panel (PDP) and a method of producing the same are provided. In the PDP, airtightness of discharge space is maintained and the performance of the PDP does not deteriorate while a sealing part containing P2O5 and SnO is provided. The sealing member with which such PDP can be obtained also is provided. The PDP includes a pair of substrates that are disposed facing each other so that a discharge space is formed therebetween, and peripheries of the pair of substrates are sealed together, with a first sealing part. The first sealing part includes a glass composition containing P2O5 and SnO, and a refractory filler. The organic matter content in the first sealing part is less than 11 ppm.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: February 15, 2011
    Assignee: Panasonic Corporation
    Inventors: Shinya Hasegawa, Yoshiaki Kai, Kazuhiro Yokota, Akinobu Miyazaki
  • Patent number: 7737619
    Abstract: The present invention reduces the amount of lead used in a display device and improves its long-term moisture resistance. This display device includes: a panel (1b) provided with a hole (11) formed therein; a phosphate glass member (13); and a tube (12) mounted on the panel (1b) via the glass member (13) so as to cover the hole (11). The glass member (13) is bonded to at least a partial area of the inner wall surface of the tube (12) and to a partial area of the panel (1b), so that the entire periphery of the end face of the tube (12) located on the side of the hole (13) is in contact with the panel (1b).
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 15, 2010
    Assignee: Panasonic Corporation
    Inventors: Yoshiaki Kai, Shinya Hasegawa
  • Publication number: 20100006313
    Abstract: The present invention reduces the amount of lead used in a display device and improves its long-term moisture resistance. This display device includes: a panel (1b) provided with a hole (11) formed therein; a phosphate glass member (13); and a tube (12) mounted on the panel (1b) via the glass member (13) so as to cover the hole (11). The glass member (13) is bonded to at least a partial area of the inner wall surface of the tube (12) and to a partial area of the panel (1b), so that the entire periphery of the end face of the tube (12) located on the side of the hole (13) is in contact with the panel (1b).
    Type: Application
    Filed: November 10, 2006
    Publication date: January 14, 2010
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Yoshiaki Kai, Shinya Hasegawa
  • Publication number: 20090260845
    Abstract: The present invention reduces the amount of lead used in a display device and improves its long-term moisture resistance. This display device includes: a panel (1b) provided with a hole (11) formed therein; a phosphate glass member (13); and a tube (12) mounted on the panel (1b) via the glass member (13) so as to cover the hole (11). The glass member (13) is bonded to at least a partial area of the inner wall surface of the tube (12) and to a partial area of the panel (1b), so that the entire periphery of the end face of the tube (12) located on the side of the hole (13) is in contact with the panel (1b).
    Type: Application
    Filed: June 30, 2009
    Publication date: October 22, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshiaki KAI, Shinya HASEGAWA
  • Publication number: 20090179567
    Abstract: A PDP and a method of producing the same are provided. The PDP allows the airtightness of the discharge space to be maintained and prevents its performance from deteriorating while being provided with a sealing part containing P2O5 and SnO. A sealing member that allows such a PDP to be obtained also is provided. The plasma display panel includes a pair of substrates that are disposed opposing each other so that a discharge space is formed therebetween, with peripheries of the pair of substrates being sealed together with a first sealing part. The first sealing part includes a glass composition containing P2O5 and SnO and a refractory filler. The organic matter content in the first sealing part is 10 ppm or less.
    Type: Application
    Filed: December 9, 2005
    Publication date: July 16, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Hasegawa, Yoshiaki Kai, Kazuhiro Yokota, Akinobu Miyazaki
  • Patent number: 7131797
    Abstract: A tool holder has a cutter arbor. The cutter arbor has a shank portion detachably mounted on a spindle, and a mechanism for holding a cutting tool. In the cutter arbor portion, a cavity portion is formed. In the cavity portion, a vibration damping material is filled at a filling rate so as to be capable of obtaining predetermined vibration damping characteristics. Thus, it is possible to provide high vibration damping characteristics, effectively damp vibrations during cutting and improve working precision, without using any special materials, such as damping materials, although the tool holder has a usual shape.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: November 7, 2006
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Yoshiaki Kai, Katsuhito Endo, Yutaka Asanome, Kouichi Katoh
  • Patent number: 7029214
    Abstract: There is provided a linear guide apparatus which, owing to the use of a gap-free braking device in a rolling guide, has a sufficiently high damping capacity. The linear guide apparatus for guiding a linear motion of a movable body along a guide rail on a fixed structure in a machine tool, includes: a rolling guide section including a rolling element for rolling on a rolling element-rolling surface of the guide rail; and a brake section for enhancing the damping capacity of the rolling guide section, the brake section including a pair of brake shoes, having a flexible structure, for sliding on the rolling element-rolling surface of the guide rail.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: April 18, 2006
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kazuhiro Shiba, Yoshiaki Kai, Takao Date
  • Patent number: 7006344
    Abstract: The present invention provides a bis(4-mercaptophenyl) sulfide derivative represented by general formula 1. This derivative is a monomer that can form a dielectric film suitable for an electronic component. The present invention further provides a method for producing this derivative and an electronic component having high characteristics under excellent humidity and high temperature.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: February 28, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noriyasu Echigo, Kazuyoshi Honda, Yoshiaki Kai, Masaru Odagiri, Hisaaki Tachihara, Hideki Matsuda, Jun Katsube, Kazuo Iwaoka, Takanori Sugimoto, Nobuki Sunagare
  • Publication number: 20050242725
    Abstract: A glass composition that is lead-free, and that, when used in a PDP, suppresses coloration of a dielectric layer, a transparent conductive film and a glass substrate, and suppresses reduction in transmittance of the dielectric layer. The glass composition is includes GeO2 0.1-20 wt %, B2O3 3-35 wt %, ZnO 4-45 wt %, Bi2O3 10-80 wt %, is free of PbO, and SiO2 content is not more than 0.5 wt %. It is preferable to further include in the glass composition Al2O3 up to 8 wt % and at least one selected from the group consisting of MgO, CaO, SrO, and BaO, up to 20 wt %.
    Type: Application
    Filed: April 20, 2005
    Publication date: November 3, 2005
    Inventors: Shinya Hasegawa, Akinobu Miyazaki, Kazuhiro Yokota, Yoshiaki Kai
  • Patent number: 6840896
    Abstract: An attachment simplified in structure having resistance to mechanical error, vibration, or heat displacement, provided with a tool mount for rotatably holding a tool, an electric motor for rotating the tool mount, a generator to which rotary force is transmitted from a spindle built in the spindle head for generating electric power to drive the electric motor, and a casing for holding the electric motor and the generator, which is releasably clamped to the spindle head.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 11, 2005
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Katsuhito Endo, Takao Date, Sakashi Adachi, Yoshiaki Kai
  • Patent number: 6829135
    Abstract: Resin thin films (12) and metal thin films (11a, 11b) are layered in alternation. The metal thin films are set back from the peripheral edges of the resin thin films (12). Via holes (13a, 13b) penetrating the layered product in the layering direction are formed and filled with conductive material (14a, 14b). The conductive material (14a, 14b) electrically connects the metal thin films (11a, 11b) among one another. The metal thin films are not exposed at the periphery, so that corrosion of the metal thin films is not likely to occur. Furthermore, cutting of the metal thin films during the manufacturing process is avoided.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: December 7, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuyoshi Honda, Noriyasu Echigo, Yoshiaki Kai, Masaru Odagiri, Nobuki Sunagare
  • Publication number: 20040184684
    Abstract: There is provided a linear guide apparatus which, owing to the use of a gap-free braking device in a rolling guide, has a sufficiently high damping capacity.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kazuhiro Shiba, Yoshiaki Kai, Takao Date
  • Patent number: 6682277
    Abstract: A tool attachable to a spindle of a machine tool by an automatic tool changer in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., and able to rotate at a rotational speed different from that of the spindle of the machine tool without supply of electric power from the outside, provided with a machining tool for machining a workpiece, a motor connected with the machining tool, and a generator to which rotary force is transmitted from the spindle of the machine tool and generating electric power to drive the motor, sealed bearings sealed with a lubricating oil are used for the bearings rotatably supporting a transmitting member for transmitting rotary force of the spindle to the generator and a drive shaft for transmitting rotary force generated by the motor to the machining tool.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: January 27, 2004
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Katsuhito Endo, Sakashi Adachi, Takazumi Watanabe, Yoshiaki Kai, Yasufumi Kawago
  • Publication number: 20030189808
    Abstract: The present invention provides a bis(4-mercaptophenyl) sulfide derivative represented by general formula 1. This derivative is a monomer that can form a dielectric film suitable for an electronic component. The present invention further provides a method for producing this derivative and an electronic component having high characteristics under excellent humidity and high temperature.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 9, 2003
    Inventors: Noriyasu Echigo, Kazuyoshi Honda, Yoshiaki Kai, Masaru Odagiri, Hisaaki Tachihara, Hideki Matsuda, Jun Katsube, Kazuo Iwaoka, Takanori Sugimoto, Nobuki Sunagare
  • Publication number: 20030147712
    Abstract: A tool holder has a cutter arbor. The cutter arbor has a shank portion detachably mounted on a spindle, and a mechanism for holding a cutting tool. In the cutter arbor portion, a cavity portion is formed. In the cavity portion, a vibration damping material is filled at a filling rate so as to be capable of obtaining predetermined vibration damping characteristics. Thus, it is possible to provide high vibration damping characteristics, effectively damp vibrations during cutting and improve working precision, without using any special materials, such as damping materials, although the tool holder has a usual shape.
    Type: Application
    Filed: December 11, 2002
    Publication date: August 7, 2003
    Inventors: Yoshiaki Kai, Katsuhito Endo, Yutaka Asanome, Kouichi Katoh
  • Publication number: 20030072631
    Abstract: A tool attachable to a spindle of a machine tool by an automatic tool changer in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., and able to rotate at a rotational speed different from that of the spindle of the machine tool without supply of electric power from the outside, provided with a machining tool for machining a workpiece, a motor connected with the machining tool, and a generator to which rotary force is transmitted from the spindle of the machine tool and generating electric power to drive the motor, sealed bearings sealed with a lubricating oil are used for the bearings rotatably supporting a transmitting member for transmitting rotary force of the spindle to the generator and a drive shaft for transmitting rotary force generated by the motor to the machining tool.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 17, 2003
    Inventors: Katsuhito Endo, Sakashi Adachi, Takazumi Watanabe, Yoshiaki Kai, Yasufumi Kawago
  • Publication number: 20030073553
    Abstract: An attachment simplified in structure having resistance to mechanical error, vibration, or heat displacement, provided with a tool mount for rotatably holding a tool, an electric motor for rotating the tool mount, a generator to which rotary force is transmitted from a spindle built in the spindle head for generating electric power to drive the electric motor, and a casing for holding the electric motor and the generator, which is releasably clamped to the spindle head.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 17, 2003
    Inventors: Katsuhito Endo, Takao Date, Sakashi Adachi, Yoshiaki Kai
  • Publication number: 20020158307
    Abstract: Resin thin films (12) and metal thin films (11a, 11b) are layered in alternation. The metal thin films are set back from the peripheral edges of the resin thin films (12). Via holes (13a, 13b) penetrating the layered product in the layering direction are formed and filled with conductive material (14a, 14b). The conductive material (14a, 14b) electrically connects the metal thin films (11a, 11b) among one another. The metal thin films are not exposed at the periphery, so that corrosion of the metal thin films is not likely to occur. Furthermore, cutting of the metal thin films during the manufacturing process is avoided.
    Type: Application
    Filed: November 27, 2001
    Publication date: October 31, 2002
    Inventors: Kazuyoshi Honda, Noriyasu Echigo, Yoshiaki Kai, Masaru Odagiri, Nobuki Sunagare
  • Patent number: 6264409
    Abstract: A tool holder clamp device for spindle, which is for clamping in a screw-fastening manner a shank portion of a tool holder to be incorporated to a spindle (1) in a removably fittable manner relative to a taper hole (9) formed at a distal end portion of the spindle (1), includes a clamp bolt member (23) rotatably and axially movably provided in a central through-hole (19) of the spindle (1) communicating with the taper hole (9), the clamp bolt member (23) having a threaded part (25) to be screwed in a threaded hole axially formed in the shank portion of the tool holder, the clamp bolt member (23) being adapted to fix the tool holder by fastening the shank portion by means of the threaded part (25), and a drive shaft body (29) rotatably and axially movably provided in the central through-hole (19) of the spindle (1), the drive shaft body (29) being adapted by axial movement thereof to engage with the clamp bolt member (23) for drive connection therewith to drive the clamp bolt member (23).
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: July 24, 2001
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Takao Date, Yoshiaki Kai, Katsuhito Endo
  • Patent number: 5820665
    Abstract: An object of the present invention is to provide a compound which imparts a sufficient water repellency and a suitable oil repellency to substrates such as a fiber, a paper, a wood material, a hide, a leather, a resin, a glass, a metal, etc. The compound of the present invention is a fluoroalkylcarboxylic acid of the general formula (I), and its derivative of the general formula (II) (e.g. fluoroalkyl alcohol, fluoroalkyl carboxylic acid chloride, fluoroalkylcarboxylic acid amide and fluoroalkylamine).
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: October 13, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Yoshiaki Kai