Patents by Inventor Kazuhiro Nakatsubo

Kazuhiro Nakatsubo 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: 11282649
    Abstract: A capacitor includes a capacitor element, a first electrode, a second electrode, a first bus bar, a second bus bar, an exterior member, and a filler resin. The first electrode is disposed on an end face of the capacitor element. The second electrode is disposed on another end face of the capacitor element. The first bus bar is connected to the first electrode. The second bus bar is connected to the second electrode. The exterior member covers the capacitor element. The filler resin fills an interior of the exterior member. The exterior member includes a metal laminate film and has an opening to lead out a part of the first bus bar and a part of the second bus bar. The opening is sealed with the filler resin.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: March 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroki Takeoka, Kazuhiro Nakatsubo, Taiyou Tsukahara, Hideki Masumi
  • Publication number: 20200118762
    Abstract: A capacitor includes a capacitor element, a first electrode, a second electrode, a first bus bar, a second bus bar, an exterior member, and a filler resin. The first electrode is disposed on an end face of the capacitor element. The second electrode is disposed on another end face of the capacitor element. The first bus bar is connected to the first electrode. The second bus bar is connected to the second electrode. The exterior member covers the capacitor element. The filler resin fills an interior of the exterior member. The exterior member includes a metal laminate film and has an opening to lead out a part of the first bus bar and a part of the second bus bar. The opening is sealed with the filler resin.
    Type: Application
    Filed: December 10, 2019
    Publication date: April 16, 2020
    Inventors: HIROKI TAKEOKA, KAZUHIRO NAKATSUBO, TAIYOU TSUKAHARA, HIDEKI MASUMI
  • Patent number: 9640324
    Abstract: A metallized film capacitor includes: a first dielectric film; a first metal deposition electrode provided to a first surface of the first dielectric film; a second dielectric film; and a second metal deposition electrode that is provided to a first surface of the second dielectric film and that faces the first dielectric film. The metallized film capacitor further includes: a low resistance provided above at least one of a first end of the first metal deposition electrode and a first end of the second metal deposition electrode; and a first film that covers at least a portion of the low resistance and that comprises mainly aluminum oxide.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: May 2, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroki Takeoka, Kazuhiro Nakatsubo, Hiroshi Kubota
  • Publication number: 20150138691
    Abstract: A metallized film capacitor includes: a first dielectric film; a first metal deposition electrode provided to a first surface of the first dielectric film; a second dielectric film; and a second metal deposition electrode that is provided to a first surface of the second dielectric film and that faces the first dielectric film. The metallized film capacitor further includes: a low resistance provided above at least one of a first end of the first metal deposition electrode and a first end of the second metal deposition electrode; and a first film that covers at least a portion of the low resistance and that comprises mainly aluminum oxide.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 21, 2015
    Inventors: Hiroki Takeoka, Kazuhiro Nakatsubo, Hiroshi Kubota
  • Patent number: 7697261
    Abstract: A metalized film capacitor includes a metal deposition electrode on a dielectric film. The metal deposition electrode includes slits provided and divided only at a side opposite to low resistance portions connected to a metalized contact, and fuses provided between the slits. In a laminated metalized film, slits provided at a central portion in a width direction of the metalized deposition electrode and extending in the longitudinal direction of the dielectric film do not overlap with each other.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: April 13, 2010
    Assignee: Panasonic Corporation
    Inventors: Shigeo Okuno, Kohei Shiota, Kazuhiro Nakatsubo
  • Publication number: 20080259522
    Abstract: A metalized film capacitor includes a metal deposition electrode on a dielectric film. The metal deposition electrode includes slits provided and divided only at a side opposite to low resistance portions connected to a metalized contact, and fuses provided between the slits. In a laminated metalized film, slits provided at a central portion in a width direction of the metalized deposition electrode and extending in the longitudinal direction of the dielectric film do not overlap with each other.
    Type: Application
    Filed: January 23, 2006
    Publication date: October 23, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Shigeo Okuno, Kohei Shiota, Kazuhiro Nakatsubo
  • Patent number: 7291185
    Abstract: A method of manufacturing a both-side metallized insulation film comprises steps of: depositing zinc or a blend of zinc and aluminum onto both sides of an insulation film; and winding this metallized film into a product roll. The method is characterized in spraying an oxidizing gas onto a deposited layer on an inner side of the insulation film to be wound, during the winding step. During a vacuum deposition step, an oil layer is formed on at least one side of the metallized film. In addition, an oxide layer is formed by exposing a deposited layer on at least one side to oxygen, or by spraying an oxygen-containing gas onto the deposited layer on at least one side during the winding of the metallized film into the product roll.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: November 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kohei Shiota, Toshiharu Saito, Kazumi Osamura, Hiroki Takeoka, Kazuhiro Nakatsubo, Toshiyuki Nishimori, Masatoshi Shibuya, Toshihiro Sasaki, Shigeo Okabe
  • Publication number: 20040207970
    Abstract: The method of manufacturing double surface metallized insulating film of the present invention comprises vacuum depositing zinc or zinc-aluminum mixture on both sides of insulating film and winding the film to a product roll, wherein oxidizing gas is sprayed to an inner side deposited film when it is wound up. Also, during the deposition, oil layer is formed on at least one side of the film, and the deposited film on at least on one side is exposed to an oxygen-contained atmosphere, or oxygen-contained gas is sprayed to at least one side of the vacuum deposited film in the step of winding the film to a product roll, to form an oxide layer. According to the method of manufacturing of the present invention, the problem of a blocking that occurs as a sticking together and peeling off of the deposited films inside the product roll is avoided.
    Type: Application
    Filed: May 24, 2004
    Publication date: October 21, 2004
    Inventors: Kohei Shiota, Toshiharu Saito, Kazumi Osamura, Hiroki Takeoka, Kazuhiro Nakatsubo, Toshiyuki Nishimori, Masatoshi Shibuya, Toshihiro Sasaki, Shigeo Okabe