Patents by Inventor Hiroyuki Okuda

Hiroyuki Okuda 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: 6381612
    Abstract: A link information management method which is capable of reducing the number of steps of a link maintenance processing of link information indicating a corresponding relationship between geographical information in a geographical information system and attribute information. To realize the method, geographical information are compared and judged by translating first geographical information based on corresponding points judged as the same points inputted on first and second geographical information by an operator. Further, update days of link information and attribute information are compared and judged, and current link information which causes the second geographical information and the attribute information to be correlated with each other is generated based on the compared and judged results of the link information and the attribute information. Then, attribute information and a closed area on the second geographical information are displayed by using the current link information thus generated.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: April 30, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuhiko Yoshimura, Maki Mori, Hiroyuki Okuda, Yoshiaki Yoshikawa
  • Publication number: 20010042071
    Abstract: A link information management method which is capable of reducing the number of steps of a link maintenance processing of link information indicating a corresponding relationship between geographical information in a geographical information system and attribute information. To realize the method, geographical information are compared and judged by translating first geographical information based on corresponding points judged as the same points inputted on first and second geographical information by an operator. Further, update days of link information and attribute information are compared and judged, and current link information which causes the second geographical information and the attribute information to be correlated with each other is generated based on the compared and judged results of the link information and the attribute information. Then, attribute information and a closed area on the second geographical information are displayed by using the current link information thus generated.
    Type: Application
    Filed: June 1, 2001
    Publication date: November 15, 2001
    Applicant: Hitachi, Ltd.
    Inventors: Mitsuhiko Yoshimura, Maki Mori, Hiroyuki Okuda, Yoshiaki Yoshikawa
  • Patent number: 6266676
    Abstract: A link information management method is capable of reducing the number of steps of a link maintenance processing of link information indicating a correspondence relationship between geographical information in a geographical information system and attribute information. To realize the method, geographical information is compared and judged by translating first geographical information based on corresponding points judged as the same points inputted on first and second geographical information by an operator. Further, update days of link information and attribute information are compared and judged, and current link information which causes the second geographical information and the attribute information to be correlated with each other is generated based on the compared and judged results of the link information and the attribute information. Then, attribute information and a closed area on the second geographical information are displayed by using the current link information thus generated.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: July 24, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuhiko Yoshimura, Maki Mori, Hiroyuki Okuda, Yoshiaki Yoshikawa
  • Patent number: 6169995
    Abstract: A link information management method is capable of reducing the number of steps of a link maintenance processing of link information indicating a correspondence relationship between geographical information in a geographical information system and attribute information. To realize the method, geographical information is compared and judged by translating first geographical information based on corresponding points judged as the same points inputted on first and second geographical information by an operator. Further, update days of link information and attribute information are compared and judged, and current link information which causes the second geographical information and the attribute information to be correlated with each other is generated based on the compared and judged results of the link information and the attribute information. Then, attribute information and a closed area on the second geographical information are displayed by using the current link information thus generated.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: January 2, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuhiko Yoshimura, Maki Mori, Hiroyuki Okuda, Yoshiaki Yoshikawa
  • Patent number: 6144956
    Abstract: In a DB retrieval method, a two-step retrieval including quantitative and qualitative retrievals is interactively performed so that, through the operation of image information (e.g. map information) having a correspondence to a DB having text information such as attribute information stored therein, attribute information corresponding to the map information is retrieved from the DB. The quantitative retrieval includes a DB information reading process for reading image information, attribute information and information relevant thereto, and a quantitative retrieval process for making a quantitative retrieval including the partial overlaying of another information for retrieval on the original image information (or map information) or a rough retrieval with the other information used as a retrieval key called information lens, and storing the result of retrieval into a work file.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: November 7, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yajima, Hiroyuki Okuda, Noritsugu Kagaya, Maki Tamano, Shunsuke Akifuji
  • Patent number: 6032157
    Abstract: For retrieving attribute information through image information which is not linked with the attribute information: displaying on a display screen the first image information corresponding with attribute information and second image information that has a common attribute with the first image information; and storing a correspondence between the first image information and the second image information in response to an input of an instruction to confirm the correspondence between the first image information and the second image information, and retrieving and displaying the attribute information on the basis of the stored correspondence between the first image information and the second image information as well as correspondence information between the first image information and the attribute information, in response to an input for object choice indicated by the second image information.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: February 29, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Maki Tamano, Hiroyuki Okuda, Hiroshi Yajima, Tadashi Hirose, Noritugu Kagaya
  • Patent number: 6012218
    Abstract: The invention provides a thin film magnetic head including an upper core layer 9 which comprises a front first core layer 91a formed on a gap spacer layer 6 and having the same width as a track width on the recording medium at least in the vicinity of the face to be opposed to a recording medium, and a second core layer 92 extending from the medium-opposed face over the upper surface of the front first core layer 91a and further over the upper surface of an upper insulating layer 72. The upper core layer 9 has a thickness greater in a region extending from the medium-opposed face to a depth end restricting face DE of a lower insulating layer 71 than in a region extending over the upper surface of the upper insulating layer 72. The front first core layer 91a has an upper surface flush with the upper surface of the lower insulating layer 71. This structure gives an accurate track width and assures production with a high yield.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: January 11, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yoshiaki Shimizu, Fumio Tatezono, Naoto Matono, Takashi Ogura, Hiroyuki Okuda, Katsumi Umeda
  • Patent number: 5978816
    Abstract: A cursor form is created for linking parts of a displayed image with corresponding entries of a table. When setting a link by designating a cursor on the display screen, a cursor for designating the location where a link is to be set surely and quickly is provided. Table data of the table (for example, a residents information table) consisting of image data (for example, a map) and a plurality of entries for setting links to this image data are displayed on the output device, and a mark which is the same as that of a predetermined item in the entry selected to set a link from the display table is designated by the cursor on a display image. When obtaining the location information on said designated image having the same mark, the data of a predetermined item among the entry data selected from the table is converted to image data, and the cursor form data is constituted.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: November 2, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Toshiaki Sakaguchi, Hiroyuki Okuda
  • Patent number: 5930799
    Abstract: Representative item information concerning an item name represented on a form, parts control information for controlling a part or input/output area forming a display screen for inputting data to a database, and data attribute information including field name and data type referred to in defining a table in the database, are created for each item name beforehand. In accordance with an input from a user for image information of the form inputted beforehand, there is generated link information which includes positional information for distinguishing a position on the image information and sub referential information for distinguishing a field of the database. On the parts control information, a part is displayed on the image information displayed on a display device. A table of the database is defined on the basis of the data attribute information.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: July 27, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Maki Tamano, Mitsuhiko Yoshimura, Hiroyuki Okuda, Yoshiaki Yoshikawa, Noriyuki Murakami
  • Patent number: 5857199
    Abstract: For retrieving attribute information through image information which is not linked with the attribute information: displaying on a display screen the first image information corresponding with attribute information and second image information that has a common attribute with the first image information; and storing a correspondence between the first image information and the second image information in response to an input of an instruction to confirm the correspondence between the first image information and the second image information, and retrieving and displaying the attribute information on the basis of the stored correspondence between the first image information and the second image information as well as correspondence information between the first image information and the attribute information, in response to an input for object choice indicated by the second image information.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: January 5, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Maki Tamano, Hiroyuki Okuda, Hiroshi Yajima, Tadashi Hirose, Noritugu Kagaya
  • Patent number: 5768072
    Abstract: A magnetic head comprises a first abutting segment formed with a winding groove having an open side, and a second abutting segment opposed to the open side of the groove and joined to the first segment. The first abutting segment comprises a first core segment having the groove, and gap spacers and second ferromagnetic thin films formed on the surface thereof opposed to the second segment and positioned above and below the groove. The first core segment comprises a core segment member made of a ferromagnetic material, formed with the groove and having a first ferromagnetic thin film which is formed on the surface thereof opposed to the second abutting segment and which is positioned toward the face of the head to be opposed to recording media. The second abutting segment has a face to be opposed to the recording medium and formed by a nonmagnetic material.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: June 16, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yutaka Ueta, Hiroyuki Ohno, Takao Yamano, Kiyotaka Itou, Kousou Ishihara, Kazuhiro Koga, Yoshifumi Fukumoto, Atsushi Furuzawa, Takahiro Ogawa, Hiroyuki Okuda, Toshinori Urano
  • Patent number: 5729731
    Abstract: In a DB retrieval method, a two-step retrieval including quantitative and qualitative retrievals is interactively performed so that, through the operation of image information (e.g. map information) having a correspondence to a DB having text information such as attribute information stored therein, attribute information corresponding to the map information is retrieved from the DB. The quantitative retrieval includes a DB information reading process for reading image information, attribute information and information relevant thereto, and a quantitative retrieval process for making a quantitative retrieval including the partial overlaying of another information for retrieval on the original image information (or map information) or a rough retrieval with the other information used as a retrieval key called information lens, and storing the result of retrieval into a work file.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: March 17, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yajima, Hiroyuki Okuda, Noritsugu Kagaya, Maki Tamano, Shunsuke Akifuji
  • Patent number: 5639934
    Abstract: A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to hydrothermal reaction under specific conditions to obtain a desulfurized product. When the sulfur-containing composition is made of vulcanized rubbers, the rubber can be converted into oily substances by treating the rubber product under supercritical conditions using an aqueous medium. The conversion reaction is facilitated by addition of metal oxides or salts.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: June 17, 1997
    Assignees: Nakamichi Yamasaki, Nishikawa Rubber Co., Ltd.
    Inventors: Nakamichi Yamasaki, Kenji Tsuda, Hiroyuki Okuda, Toshinari Tenno
  • Patent number: 5625771
    Abstract: A cursor form is created for linking parts of a displayed image with corresponding entries of a table. When setting a link by designating a cursor on the display screen, a cursor for designating the location where a link is to be set surely and quickly is provided. Table data of the table (for example, a residents information table) consisting of image data (for example, a map) and a plurality of entries for setting links to this image data are displayed on the output device, and a mark which is the same as that of a predetermined item in the entry selected to set a link from the display table is designated by the cursor on a display image. When obtaining the location information on said designated image having the same mark, the data of a predetermined item among the entry data selected from the table is converted to image data, and the cursor form data is constituted.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: April 29, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Toshiaki Sakaguchi, Hiroyuki Okuda
  • Patent number: 5502262
    Abstract: A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to hydrothermal reaction under specific conditions to obtain a desulfurized product. When the sulfur-containing composition is made of vulcanized rubbers, the rubber can be converted into oily substances by treating the rubber product under supercritical conditions using an aqueous medium. The conversion reaction is facilitated by addition of metal oxides or salts.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: March 26, 1996
    Assignees: Nakamichi Yamasaki, Nishikawa Rubber Co., Ltd.
    Inventors: Nakamichi Yamasaki, Kenji Tsuda, Hiroyuki Okuda, Toshinari Tenno
  • Patent number: 5278716
    Abstract: A magnetic head comprises a pair of magnetic core halves, heat-resistant thin films and ferromagnetic thin films, the pair of magnetic core halves being opposed to each other through a non-magnetic material such as SiO.sub.2 to form a magnetic gap. The magnetic core halves are made of a ferromagnetic oxide such as ferrite and have gap forming faces to be opposed to each other to form the magnetic gap. The gap forming faces are etched by phosphoric acid solution and then purified by reverse sputtering, so that a grown crystal of the ferromagnetic oxide is exposed on the gap forming faces. A heat-resistant thin film of a heat-resistant material such as SiO.sub.2 is formed on each of the gap forming faces. A ferromagnetic thin film of a ferromagnetic metal material such as sendust is formed on each heat-resistant thin film. Preferably, the thickness of the heat-resistant thin film to be formed is 1 nm or more and one tenth or less of the width of the magnetic gap. For example, SiO.sub.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 11, 1994
    Assignee: Sanyo Electric Co.
    Inventors: Hiroyuki Okuda, Yoshiaki Shimizu, Kazuo Ino, Kousou Ishihara, Takashi Ogura
  • Patent number: 5225033
    Abstract: A process for producing a magnetic head of the floating type having a head portion and a slider portion comprises preparing a core block 7 having arranged on a plane a head forming portion and a slider forming portion for providing the head portion and the slider portion, respectively, and forming at least one pair of track width defining grooves 14, 14 across a gap spacer 4 by dry-etching a surface 8 of the core block 7 which is to be opposed to media to form a magnetic gap portion G by a portion of the gap spacer of a predetermined track width between the pair of grooves.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: July 6, 1993
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Ogura, Takashi Yanai, Hiroyuki Okuda, Takao Yamano, Tsukasa Shimizu
  • Patent number: 5218500
    Abstract: With a view to solving the problem of "pseudo-gap" in a parallel type MIG head and to improving its reproduction output, effective combinations of the principal magnetic path forming face and the gap-forming face were determined empirically for the case of using a single-crystal ferrite core material.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: June 8, 1993
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroyuki Okuda, Isao Tanaka, Jyoichi Tamada, Kazuo Ino, Takashi Ogura, Fumio Kameoka, Kouzo Ishihara
  • Patent number: 5195004
    Abstract: A magnetic head comprises a pair of magnetic core halves, heat-resistant thin films and ferromagnetic thin films, the pair of magnetic core halves being opposed to each other through a non-magnetic material such as SiO.sub.2 to form a magnetic gap. The magnetic core halves are made of a ferromagnetic oxide such as ferrite and have gap forming faces to be opposed to each other to form the magnetic gap. The gap forming faces are etched by phosphoric acid solution and then purified by reverse sputtering, so that a grown crystal of the ferromagnetic oxide is exposed on the gap forming faces. A heat-resistant thin film of a heat-resistant material such as SiO.sub.2 is formed on each of the gap forming faces. A ferromagnetic thin film of a ferromagnetic metal material such as sendust is formed on each heat-resistant thin film. Preferably, the thickness of the heat-resistant thin film to be formed is 1 nm or more and one tenth or less of the width of the magnetic gap. For example, SiO.sub.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: March 16, 1993
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroyuki Okuda, Yoshiaki Shimizu, Kazuo Ino, Kousou Ishihara, Takashi Ogura
  • Patent number: 5155645
    Abstract: A magnetic head has a pair of magnetic core halves opposed to each other with a non-magnetic material posed therebetween to form a magnetic gap, which head includes a pair of magnetic core halves, a first ferromagnetic metal thin film and a second ferromagnetic metal thin film. The magnetic core halves are formed of ferromagnetic oxide such as Mn-Zn ferrite, and they have opposing surfaces opposed to each other to provide the magnetic gap. The first ferromagnetic metal thin film formed of Fe-Si-Al alloy is formed at least on one of the opposing surfaces. The second ferromagnetic metal thin film formed of Fe-Si-Al alloy having different constituent ratio from the first ferromagnetic metal thin film is formed between the magnetic gap and the first ferromagnetic metal thin film. The flux density of the second ferromagnetic metal thin film induced when a magnetic field of 1.2K oersted is applied exceeds 1000 gauss.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 13, 1992
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tsukasa Shimizu, Yoshiaki Shimizu, Jyoichi Tamada, Hiroyuki Okuda, Takao Yamano, Kazuo Ino, Koso Ishihara, Takashi Ogura