Patents by Inventor Norikazu Kitagawa

Norikazu Kitagawa 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).

  • Publication number: 20150298104
    Abstract: A molten salt-type exhaust gas purification catalyst has, as a catalyst component, a first composite metal oxide of cesium and vanadium, and a sulfate containing cesium and an alkaline earth metal.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Tatsurou MIYAGAWA, Takahiro NAKAJIMA, Masahiro KUBO, Norikazu KITAGAWA, Ryousuke SUGA
  • Publication number: 20140004012
    Abstract: A molten salt-type exhaust gas purification catalyst has, as a catalyst component, a first composite metal oxide of cesium and vanadium, and a sulfate containing cesium and an alkaline earth metal.
    Type: Application
    Filed: April 24, 2012
    Publication date: January 2, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tatsurou Miyagawa, Takahiro Nakajima, Masahiro Kubo, Norikazu Kitagawa, Ryousuke Suga
  • Publication number: 20110152138
    Abstract: To provide a rolling bearing which is superior in preventing electrolytic corrosion, suitable for use in applications where torque reduction of the bearing is required by reducing an amount of lubricant used or by using a lubricant having a low viscosity, and has superior acoustic characteristics and durability, a rolling element according to the present invention is made of an alumina-zirconia composite material including an alumina component and either a zirconia component or a yttria-zirconia component containing 1.5 to 5 mol % of yttria, a mass ratio of the alumina component to the zirconia component or the yttria-zirconia component being 5:95 to 50:50.
    Type: Application
    Filed: May 21, 2010
    Publication date: June 23, 2011
    Applicant: NSK LTD.
    Inventors: Tsuyoshi Nakai, Keiji Yasunaga, Tomohiro Motoda, Yuichi Endo, Mamoru Aoki, Koji Ueda, Katsunori Yanase, Satoru Watanabe, Hiroshi Ishiwada, Shun Nishizeki, Norikazu Kitagawa
  • Patent number: 6709162
    Abstract: A rolling-bearing unit comprising a pair of bearing assembled such that the tolerance range of the radial clearance or contact angle of the ball bearings is divided into a plurality of divisions, and that a pair of ball bearings is selected from the same division, and that a pre-load, which is set according to the division, is applied to the selected pair of ball bearings as they are installed in the unit.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 23, 2004
    Assignee: NSK Ltd.
    Inventors: Hiromitsu Muraki, Norihiro Aoki, Norikazu Kitagawa
  • Publication number: 20020172443
    Abstract: A rolling bearing unit for a swing arm comprises a pivot, a pair of rolling bearings for rotatably supporting the pivot with respect to a stationary shaft, and an E block for the swing arm connected to the pivot, the E block having ends at least one of which is provided with an axially extending lip section, and the lip section being bent e.g. at three locations to be crimped against the end of the pivot for connection.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 21, 2002
    Applicant: NSK LTD.
    Inventors: Hiromitsu Muraki, Kenju Takei, Norihiro Aoki, Norikazu Kitagawa
  • Publication number: 20020085780
    Abstract: A rolling-bearing unit comprising a pair of bearing assembled such that the tolerance range of the radial clearance or contact angle of the ball bearings is divided into a plurality of divisions, and that a pair of ball bearings is selected from the same division, and that a pre-load, which is set according to the division, is applied to the selected pair of ball bearings as they are installed in the unit.
    Type: Application
    Filed: December 6, 2001
    Publication date: July 4, 2002
    Inventors: Hiromitsu Muraki, Norihiro Aoki, Norikazu Kitagawa