Patents by Inventor Hisamitsu Maeda

Hisamitsu Maeda 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).

  • Status monitoring system and status monitoring method for rolling device
    Patent number: 9335317
    Abstract: A status monitoring system for accurately determining the contaminant water concentration in a lubricant oil used in a rolling device includes a contaminant water concentration monitoring device configured to monitor the contaminant water concentration in the lubricant oil. The contaminant water concentration monitoring device includes an electrostatic capacitance detector and an oil temperature measuring instrument, which are configured to detect the electrostatic capacitance and the oil temperature of the lubricant oil, respectively, and a water concentration calculation section configured to calculate the contaminant water concentration from the detected electrostatic capacitance and oil temperature in accordance with a predetermined rule.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 10, 2016
    Assignee: NTN CORPORATION
    Inventors: Yukio Matsubara, Noriaki Miwa, Takakazu Kitagawa, Tomoya Sakaguchi, Masayuki Kawakita, Hisamitsu Maeda
  • STATUS MONITORING SYSTEM AND STATUS MONITORING METHOD FOR ROLLING DEVICE
    Publication number: 20140007657
    Abstract: In order to provide a status monitoring system for accurately determining the contaminant water concentration in a lubricant oil used in a rolling device, the provision is made of a contaminant water concentration monitoring device (6) configured to monitor the contaminant water concentration in the lubricant oil (5). The contaminant water concentration monitoring device (6) includes an electrostatic capacitance detector (7) and an oil temperature measuring instrument (8), which are configured to detect the electrostatic capacitance and the oil temperature of the lubricant oil (5), respectively, and a water concentration calculation section (9) configured to detect the contaminant water concentration from the detected electrostatic capacitance and oil temperature in accordance with a predetermined rule.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 9, 2014
    Inventors: Yukio Matsubara, Noriaki Miwa, Takakazu Kitagawa, Tomoya Sakaguchi, Masayuki Kawakita, Hisamitsu Maeda
  • Pickup stylus
    Patent number: 4458346
    Abstract: A pickup stylus comprises a diamond stylus body having a rough surface and a conductive coating deposited onto said rough surface. The rough surface is made by ion bombardment process.The pickup stylus is useful for information playback in video and/or audio disc system.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: July 3, 1984
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsuneo Mitsuyu, Hisamitsu Maeda, Kiyotaka Wasa