Patents by Inventor Toshihiko Sakai

Toshihiko Sakai 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: 20150116216
    Abstract: A light output apparatus includes a light source that emits light shoving different light orientation distributions in a first direction and a second direction and having a high optical intensity area larger in the first direction than in the second direction, a collimator lens that parallelizes the light emitted from the light source, and a Powell lens that spreads the parallelized light from the collimator lens in the first direction, maintains the parallelized direction provided by the collimator lens in the second direction, and outputs the resultant light along a third direction that is perpendicular to the first and second directions and serves as a central axis.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 30, 2015
    Inventors: Toshihiko SAKAI, Noriyuki HIRANO
  • Patent number: 8982194
    Abstract: An image watching glasses identification device 10 (or 20 or 30) is an image watching glasses identification device 10 (or 20 or 30) for identifying a pair of shutter glasses 400 through which to watch an image displayed on a display device 100, the image watching glasses identification device 10 (or 20 or 30) including: an identification information obtaining section 15 for obtaining an identification information item for identifying the pair of shutter glasses 400 and; a display control section 12 for causing the display device 100 to display an identification result associated with the identification information item obtained by the identification information obtaining section 15. This makes it possible to provide an image watching glasses identification device that is capable of causing, when a viewer watches through the pair of image watching glasses 400 the image displayed on the display device 100, the display device 100 to display the identification result.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: March 17, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Go Mori, Teruhisa Kotani, Hideharu Tajima, Shigemi Maeda, Tetsuya Okumura, Takashi Arimoto, Toshihiko Sakai, Takanobu Sato
  • Publication number: 20150043322
    Abstract: The reliability of a super-resolution optical information recording medium whose capacity can be increased is increased. On an optical information recording medium (11) according to the present invention, a content is recorded as a pit group formed such that an average length Tm [nm] of a minimum mark length and a minimum space length becomes shorter than an optical system resolution limit, and reading speed information designating a reading speed in a range from 2×(4.92×Tm/149) [m/s] to less than (10000/60)×2×?×(24/1000) [m/s] is recorded as a reading speed for reproducing the content.
    Type: Application
    Filed: December 7, 2012
    Publication date: February 12, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideharu Tajima, Atsushi Etoh, Go Mori, Masaki Yamamoto, Tetsuya Hayashi, Toshihiko Sakai, Hirohisa Yamada, Takayuki Naka
  • Patent number: 8867328
    Abstract: An optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, an optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 21, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8848306
    Abstract: In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in<R2in<R3in<R1out<R2out<R3out. In the second recording, a non-overlapping portion which does not overlap with any of the recording columns in the radial direction is formed on each of the recording columns.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: September 30, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Patent number: 8792194
    Abstract: A magnetic recording element records information by applying a recording magnetic field to a magnetic recording medium having an information recording area to form a plurality of recording columns extending in a first direction. Recording by the magnetic recording element is performed so that a first recording column and a second recording column formed before the first recording column partially overlap each other in a second direction perpendicular to the first direction, and that a recording start position of the first recording column is positioned upstream, relative to the recording direction, of a recording start position of the second recording column.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Patent number: 8760784
    Abstract: Disclosed is a magnetic recording/reproduction device 2 including: a recording/reproduction head 7; and a recording/reproduction head 7 for detecting a leakage magnetic field of each of the plurality of magnetic recording cells 1 so as to reproduce information, the recording/reproduction head 7 carrying out the recording on the magnetic recording medium 4 so that the magnetic recording medium 4 includes continuous recording regions that (i) satisfy Nmin?2 and that (ii) include a continuous recording region that satisfies N?n×Nmin, where N represents a number of magnetic recording cells 1 in a continuous recording region; Nmin represents a minimum value for N; and n represents a positive integer, the continuous recording regions each being a region on a reproduction track in which region magnetic recording cells 1 sharing an identical magnetization direction are sequentially arranged in a circumferential direction of the magnetic recording medium 4.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 24, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Publication number: 20140160910
    Abstract: An optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, an optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8705333
    Abstract: A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: April 22, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Publication number: 20140010057
    Abstract: A super-resolution optical recording medium (10) of the present invention includes: a medium information region (1) on which medium identification information is recorded; a content region (3) on which content information is recorded; and a blank region (2) provided between the medium information region (1) and the content region (3) and in which at least two tracks are provided so as to connect a train of prepits in the medium information region (1) and a train of prepits in the content region (3). No information is recorded on the blank region (2). With this arrangement, the present invention provides a super-resolution optical recording medium in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Application
    Filed: September 16, 2013
    Publication date: January 9, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8616707
    Abstract: A projector includes: a housing; an optical element accommodated in the housing; and an air supply unit configured to generate a flow of cooling air for cooling a cooling target element including the optical element, a dustproof area into which the cooling air can be introduced from the outside of the housing via a dustproof filter is formed inside the housing, the optical element is accommodated in the dustproof area of the housing, and the air supply unit includes a first air supply unit configured to introduce the cooling air from the outside of the housing to the dustproof area via the dustproof filter, and a second air supply unit accommodated in the dustproof area and configured to supply the cooling air introduced to the dustproof area by the first air supply unit toward the optical element.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: December 31, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Yasunaga Miyazawa, Yoshitaka Itoh, Toshihiko Sakai, Katsuhiro Matsuyama, Yasuteru Miyaoka
  • Patent number: 8614682
    Abstract: A touchscreen panel unit includes a scrolling determination part configured to determine whether to scroll a displayable region of information to be displayed on a screen based on the positional relationship between the position of a first contact with the screen and the position of a second contact with the screen; a scrolling setting part configured to set the scrolling direction and the scrolling distance of the displayable region based on the position of the first contact and a contact position path starting at the position of the second contact, in response to the scrolling determination part determining that the displayable region is to be scrolled; and a scrolling information output part configured to output information indicating the scrolling direction and the scrolling distance set by the scrolling setting part.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: December 24, 2013
    Assignee: Fujitsu Component Limited
    Inventor: Toshihiko Sakai
  • Publication number: 20130328668
    Abstract: An information processing apparatus (1) includes a processing execution unit (19) that, if a positional-relationship specification unit (18) detects that a positional relationship between an electronic device (2) and the own apparatus is held continuously for a predetermined time or longer, references a processing specification table (17), specifies processing, and executes the specified processing.
    Type: Application
    Filed: February 16, 2012
    Publication date: December 12, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshihiko Sakai, Yasuhiro Harada, Noboru Iwata, Hideharu Tajima
  • Patent number: 8570850
    Abstract: A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: October 29, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: 8467142
    Abstract: A magnetic recording medium includes: tracks each including a magnetic recording section in which information is recorded and a non-magnetic-recording section in which no information is recorded; and nonmagnetic guide sections magnetically separating the tracks from one another. The non-magnetic-recording section is formed integrally with nonmagnetic guide sections. The magnetic recording medium includes at least one pair of a first region in which at least a portion of each of the respective non-magnetic-recording sections of first and second tracks and a portion of a magnetic recording section of a third track coincide with one another at a position along a direction in which the tracks extend; and a second region in which at least a portion of each of the respective non-magnetic-recording sections of the first and third tracks and a portion of a magnetic recording section of the second track coincide with one another at a position along the direction in which the tracks extend.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: June 18, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Patent number: 8467140
    Abstract: A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: June 18, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Yoshiteru Murakami
  • Publication number: 20130057977
    Abstract: In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in<R2in<R3in<R1out<R2out<R3out. In the second recording, a non-overlapping portion which does not overlap with any of the recording columns in the radial direction is formed on each of the recording columns.
    Type: Application
    Filed: August 16, 2012
    Publication date: March 7, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Publication number: 20130057978
    Abstract: In an information recording area of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed so as to partially overlap with each other in the radial direction. Each recording column has an overlapping portion which partially overlaps with either of the adjacent recording columns in the radial direction, and a non-overlapping portion which does not overlap with any of the recording columns in the radial direction.
    Type: Application
    Filed: August 16, 2012
    Publication date: March 7, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Yoshiteru Murakami
  • Patent number: 8379505
    Abstract: A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: February 19, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Sakai, Hirohisa Yamada, Masaki Yamamoto, Yasuhiro Harada, Go Mori, Hideharu Tajima, Nobuyuki Takamori
  • Patent number: D730072
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: May 26, 2015
    Assignee: FUJI MEDICAL INSTRUMENTS MFG. CO., LTD.
    Inventors: Toshihiko Sakai, Toshihisa Yoshida, Takashi Mizuguchi, Hironori Yasuda, Kentaro Oode