Patents by Inventor Masayuki Ichikawa

Masayuki Ichikawa 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: 10371369
    Abstract: An optical module having a high-moisture-proof package structure in which dew condensation does not occur is provided. An optical module includes optical components including a light source, a pedestal on which the optical components are mounted, a cover which is combined to the pedestal to seal the optical components, and an emitting window disposed in the cover to take light from the light source outside. The pedestal and the cover are sealed with an O ring and a liquid seal material such that a compression direction of the O ring and a compression direction of the liquid seal material are almost perpendicular to each other.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 6, 2019
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Yukio Sakigawa, Masayuki Okamura, Hiroaki Furuichi, Hiroshi Ogasawara, Kenji Watabe, Fumihito Ichikawa, Tatsuya Yamasaki
  • Publication number: 20190229593
    Abstract: A brushed motor includes a rotation shaft, a commutator including a plurality of segments separated by a plurality of undercuts arranged at unequal intervals, an armature, a plurality of permanent magnets, a voltage equalizing line, a positive electrode brush, and a negative electrode brush. When Pz is the number of the permanent magnets and N is the number of the segments, a relationship of N=Pz(K?0.5) is satisfied. Pz is an even number that is greater than or equal to four. K is a constant and is a natural number that is greater than or equal to two. The plurality of undercuts includes at least one set of undercuts arranged at an undercut interval that differs from a reference angle ?z. The reference angle ?z is specified by a relational expression of ?z=(360 degrees/Pz)±(360 degrees/2N).
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Applicant: Denso Corporation
    Inventors: Tetsuaki Ichikawa, Toshio Yamamoto, Masayuki Kuwano
  • Patent number: 10348169
    Abstract: A brushed motor includes a rotation shaft, a commutator including a plurality of segments separated by a plurality of undercuts arranged at unequal intervals, an armature, a plurality of permanent magnets, a voltage equalizing line, a positive electrode brush, and a negative electrode brush. When Pz is the number of the permanent magnets and N is the number of the segments, a relationship of N=Pz(K?0.5) is satisfied. Pz is an even number that is greater than or equal to four. K is a constant and is a natural number that is greater than or equal to two. The plurality of undercuts includes at least one set of undercuts arranged at an undercut interval that differs from a reference angle ?z. The reference angle ?z is specified by a relational expression of ?z=(360 degrees/Pz)±(360 degrees/2N).
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 9, 2019
    Assignee: Denso Corporation
    Inventors: Tetsuaki Ichikawa, Toshio Yamamoto, Masayuki Kuwano
  • Patent number: 10332456
    Abstract: A vehicular display device includes an image display device that is arranged in front of a driver in a vehicle and that displays images. In a case in which the image display device interruptively displays a warning on a partial region of an image display region, the image display device displays, on the partial region, a warning image indicating warning content and a frame image surrounding the warning image. The image display device performs animation display to change at least one of the position and the shape of the frame image when starting display of the frame image.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 25, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Kazumasa Shoji, Ryoko Sone, Masayuki Ichikawa
  • Patent number: 10245954
    Abstract: A vehicle display device includes an image display device and a frame member. The image display device is disposed in front of a driver in a vehicle and displays an image. The frame member is disposed on a driver side of the image display device and surrounds a part of an image display region in the image display device. When displaying a new image in a surrounding of the frame member, the image display device displays the new image from an edge of the frame member in a slide-in manner.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: April 2, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Kazumasa Shoji, Ryoko Sone, Masayuki Ichikawa
  • Publication number: 20180215264
    Abstract: A vehicle display device includes an image display device and a frame member. The image display device is disposed in front of a driver in a vehicle and displays an image. The frame member is disposed on a driver side of the image display device and surrounds a part of an image display region in the image display device. When displaying a new image in a surrounding of the frame member, the image display device displays the new image from an edge of the frame member in a slide-in manner.
    Type: Application
    Filed: January 16, 2018
    Publication date: August 2, 2018
    Applicant: Yazaki Corporation
    Inventors: Kazumasa SHOJI, Ryoko SONE, Masayuki ICHIKAWA
  • Publication number: 20180218691
    Abstract: A vehicular display device includes an image display device that is arranged in front of a driver in a vehicle and that displays images. In a case in which the image display device interruptively displays a warning on a partial region of an image display region, the image display device displays, on the partial region, a warning image indicating warning content and a frame image surrounding the warning image. The image display device performs animation display to change at least one of the position and the shape of the frame image when starting display of the frame image.
    Type: Application
    Filed: November 7, 2017
    Publication date: August 2, 2018
    Applicant: Yazaki Corporation
    Inventors: Kazumasa SHOJI, Ryoko SONE, Masayuki ICHIKAWA
  • Publication number: 20180217724
    Abstract: A vehicular display device includes an image display device that is arranged in front of a driver in a vehicle and configured to display an image. The image displayed in an information display area of the image display device includes an information image displaying information according to a mode selected out of a plurality of modes, and a menu image in which a plurality of titles corresponding to the respective modes are arranged in a lateral direction of the image and for which switching is made between display and hidden-display. When an operating input to switch the modes is made while the menu image is hidden, the image display device displays the menu image, and performs animation display that changes a title displayed as active out of the titles from a title corresponding to a mode before change to a title corresponding to a mode after the change.
    Type: Application
    Filed: January 9, 2018
    Publication date: August 2, 2018
    Applicant: Yazaki Corporation
    Inventors: Kazumasa SHOJI, Ryoko SONE, Masayuki ICHIKAWA
  • Publication number: 20060170961
    Abstract: A construction information extraction section acquires information about a construction of a document from order information about document production acquired by an order information acquisition section. A job definition section defines jobs for producing a component, based on the construction information, and also defines stages to be executed in each of the jobs. A job assignment section assigns the defined jobs to job workers. A progress management section acquires information about progress on each of the stages included in the jobs assigned to the job workers. This achieves production management adapted to the realities at the site of actual production such that each job for the production of the document is subdivided into a plurality of parts which in turn are assigned to the job workers.
    Type: Application
    Filed: January 13, 2006
    Publication date: August 3, 2006
    Inventors: Ikune Saijo, Masahiro Takemoto, Hiroshi Nishide, Masayuki Ichikawa