Patents by Inventor Takafumi NARITA

Takafumi NARITA 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: 10401157
    Abstract: An optical inner surface measurement device is provided; which includes a motor; a rotary optical fiber configured to be rotated by the motor; a fixed optical fiber configured not to rotate relative to the rotary optical fiber; and a runout detection sensor configured to measure a runout amount of the rotary optical fiber, wherein an optical path conversion device is arranged at a tip end of the rotary optical fiber, at a back of the motor, both end surfaces of the rotary optical fiber and the fixed optical fiber face each other with a minute clearance, and reflected light, which is captured by the optical path conversion device, from a measurement target object inner surface is guided to a measurement machine body by way of the rotary optical fiber and the fixed optical fiber and is analyzed by a computer to produce inner surface measurement data, and the inner surface measurement data is corrected based on the runout amount detected by the runout detection sensor.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 3, 2019
    Assignee: Adamant Namiki Precision Jewel Co., Ltd.
    Inventors: Hiroshi Yamazaki, Takuya Tateyama, Kenji Narita, Takafumi Asada
  • Publication number: 20190137263
    Abstract: An optical inner surface measurement device is provided; which includes a motor; a rotary optical fiber configured to be rotated by the motor; a fixed optical fiber configured not to rotate relative to the rotary optical fiber; and a runout detection sensor configured to measure a runout amount of the rotary optical fiber, wherein an optical path conversion device is arranged at a tip end of the rotary optical fiber, at a back of the motor, both end surfaces of the rotary optical fiber and the fixed optical fiber face each other with a minute clearance, and reflected light, which is captured by the optical path conversion device, from a measurement target object inner surface is guided to a measurement machine body by way of the rotary optical fiber and the fixed optical fiber and is analyzed by a computer to produce inner surface measurement data, and the inner surface measurement data is corrected based on the runout amount detected by the runout detection sensor.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Applicant: ADAMANT NAMIKI PRECISION JEWEL CO., LTD.
    Inventors: Hiroshi YAMAZAKI, Takuya TATEYAMA, Kenji NARITA, Takafumi ASADA
  • Publication number: 20170031629
    Abstract: There is provided a method of transferring a binary image into a memory device having a memory controller for performing conversion between physical addresses and logical addresses of storage areas. The binary image is transferred into the memory device such that areas included in the binary image and having no valid data become free areas in storage areas of the memory device, the free areas to which physical addresses and logical addresses are not associated.
    Type: Application
    Filed: July 14, 2016
    Publication date: February 2, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Takayoshi NAKAMOTO, Shinichi IWAMOTO, Mutsuo TANABE, Taku YOKAWA, Takafumi NARITA, Takeshi IGASAKI