Patents by Inventor Kazunori Miyakawa

Kazunori Miyakawa 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: 20200233279
    Abstract: In a waiting period in which a transmission state of an electrodeposition element is held to be a predetermined transmission state such as a full-transmission state, based on a frequency, a duty ratio, a first voltage and a second voltage set in advance, a transmittance holding pulse generating section generates a pattern of a transmittance holding pulse having a cycle corresponding to the frequency and continuously outputs the pattern of the transmittance holding pulse to the electrodeposition element. In a light reduction period in which the transmission state of the electrodeposition element is held to be a light-reduced state (transmittance is lowered), the deposition start voltage generating section applies a third voltage, which is a preset deposition start voltage, to the electrodeposition element. Consequently, metal ions are easily deposited, enabling increasing a speed of dispersion of the metal ions.
    Type: Application
    Filed: August 10, 2018
    Publication date: July 23, 2020
    Applicant: MURAKAMI CORPORATION
    Inventors: Kodai KIKUCHI, Kazunori MIYAKAWA, Takuo MOCHIZUKA
  • Publication number: 20130223593
    Abstract: An X-ray sensor according to the present invention includes: a light-transmissive substrate (17); a light-transmissive electrode (21) formed on one surface of the light-transmissive substrate (17); and a photoconductive film (18) including a hole injection blocking layer (22), a field buffer layer (23), a hole trap layer (24), a photoconductive sensitive layer (25) having a charge-multiplying function, and an electron injection blocking layer (26), the layers being sequentially provided on the one surface of the light-transmissive substrate (17) having the light-transmissive electrode (21). The field buffer layer (23) is larger in thickness than a layer composed of the light-transmissive electrode (21) and the hole injection blocking layer (22).
    Type: Application
    Filed: November 16, 2011
    Publication date: August 29, 2013
    Applicants: NIPPON HOSO KYOKAI, PANASONIC CORPORATION
    Inventors: Masahiro Jouno, Keisuke Koga, Yuji Ohkawa, Misao Kubota, Kazunori Miyakawa, Kenkichi Tanioka
  • Patent number: 5466613
    Abstract: A camera device having favorable multiplication characteristics (quantum efficiency) as well as improved sensitivity in a visible light region (especially the region on the red side) and a method of manufacturing the same are provided. The camera device includes a hole injection stop layer, a first photoelectric converting layer including selenium, a second photoelectric converting layer having spectral sensitivity characteristics which are different from those of the first photoelectric converting layer, a third photoelectric converting layer including selenium, and an electron injection stop layer. As a result, it is possible to improve multiplication characteristics (quantum efficiency) and to improve the sensitivity in the visible light region (especially the region on the red side) simultaneously.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: November 14, 1995
    Assignees: Nippon Hoso Kyokai, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fumihiko Andoh, Kazunori Miyakawa, Hidekazu Yamamoto, Masao Yamawaki
  • Patent number: 5399882
    Abstract: A camera device having favorable multiplication characteristics (quantum efficiency) as well as improved sensitivity in a visible light region (especially the region on the red side) and a method of manufacturing the same are provided. The camera device includes a hole injection stop layer, a first photoelectric converting layer including selenium, a second photoelectric converting layer having spectral sensitivity characteristics which are different from those of the first photoelectric converting layer, a third photoelectric converting layer including selenium, and an electron injection stop layer. As a result, it is possible to improve multiplication characteristics (quantum efficiency) and to improve the sensitivity in the visible light region (especially the region on the red side) simultaneously.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 21, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fumihiko Andoh, Kazunori Miyakawa, Hidekazu Yamamoto, Masao Yamawaki