Patents by Inventor Yuichi Ohyama

Yuichi Ohyama 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: 8085238
    Abstract: A backlight for illuminating the back of a display section includes a plurality of light sources disposed in positions corresponding to a display area of the display section; a diffusion member configured to transmit light from the light sources to the display section; a photo-sensor; a light guiding member configured to introduce the light from the light sources to the photo-sensor for detection; and an arithmetic operation processing section configured to calculate the luminance or chromaticity of each of the light sources from the luminance or chromaticity detected by the photo-sensor.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: December 27, 2011
    Assignee: Sony Corporation
    Inventors: Takehiro Misonou, Yuichi Ohyama
  • Publication number: 20070265378
    Abstract: The polyvinyl chloride-based fiber of the present invention is a polyvinyl chloride-based fiber formed of a vinyl chloride-based resin composition that is obtained by blending, with respect to 100 parts by weight of a mixture (a) containing 95 wt % to 50 wt % of a vinyl chloride-based resin and 5 wt % to 50 wt % of a chlorinated vinyl chloride resin, 0.5 parts by weight to 3 parts by weight of a hydrotalcite-based thermostabilizer (b), 0.5 parts by weight to 2 parts by weight of a metallic soap-based thermostabilizer (c), and 0.5 parts by weight to 1.2 parts by weight of ?-diketone as a stabilizing aid (d). This polyvinyl chloride-based fiber has excellent spinnability, excellent transparency, small initial coloration and excellent colorability, and thus has a high commercial value as artificial hair for hair adornment, and can be used widely for practical goods and fashion purposes.
    Type: Application
    Filed: September 29, 2005
    Publication date: November 15, 2007
    Applicant: KANEKA CORPORATION
    Inventors: Toshiyuki Kawaguchi, Yuichi Ohyama, Toshihiko Hirose
  • Publication number: 20070120765
    Abstract: A backlight for illuminating the back of a display section includes a plurality of light sources disposed in positions corresponding to a display area of the display section; a diffusion member configured to transmit light from the light sources to the display section; a photo-sensor; a light guiding member configured to introduce the light from the light sources to the photo-sensor for detection; and an arithmetic operation processing section configured to calculate the luminance or chromaticity of each of the light sources from the luminance or chromaticity detected by the photo-sensor.
    Type: Application
    Filed: October 16, 2006
    Publication date: May 31, 2007
    Applicant: Sony Corporation
    Inventors: Takehiro Misonou, Yuichi Ohyama
  • Patent number: 6757621
    Abstract: A process management system in accordance with the present invention includes inspection apparatuses for inspecting defects on a wafer, the inspection apparatuses being connected through a communication network, inspection information and image information obtained from these inspection apparatuses being collected to construct a data base and an image file, therein definition of defects is given by combinations of elements which characterize the defect based on the inspection information and the image information obtained from the inspection apparatuses. By giving definition of the defect, characteristics of the defect can be subdivided and known. Therefore, the cause of a defect can be studied.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 29, 2004
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Fumio Mizuno, Seiji Isogai, Kenji Watanabe, Yasuhiro Yoshitake, Terushige Asakawa, Yuichi Ohyama, Hidekuni Sugimoto, Seiji Ishikawa, Masataka Shiba, Jun Nakazato, Makoto Ariga, Tetsuji Yokouchi, Toshimitsu Hamada, Ikuo Suzuki, Masami Ikota, Mari Nozoe, Isao Miyazaki, Yoshiharu Shigyo
  • Patent number: 6628817
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: September 30, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Publication number: 20030130806
    Abstract: A process management system in accordance with the present invention includes inspection apparatuses for inspecting defects on a wafer, the inspection apparatuses being connected through a communication network, inspection information and image information obtained from these inspection apparatuses being collected to construct a data base and an image file, therein definition of defects is given by combinations of elements which characterize the defect based on the inspection information and the image information obtained from the inspection apparatuses. By giving definition of the defect, characteristics of the defect can be subdivided and known. Therefore, the cause of a defect can be studied.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 10, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Fumio Mizuno, Seiji Isogai, Kenji Watanabe, Yasuhiro Yoshitake, Terushige Asakawa, Yuichi Ohyama, Hidekuni Sugimoto, Seiji Ishikawa, Masataka Shiba, Jun Nakazato, Makoto Ariga, Tetsuji Yokouchi, Toshimitsu Hamada, Ikuo Suzuki, Masami Ikota, Mari Nozoe, Isao Miyazaki, Yoshiharu Shigyo
  • Patent number: 6542830
    Abstract: A process management system in accordance with the present invention includes inspection apparatuses for inspecting defects on a wafer, the inspection apparatuses being connected through a communication network, inspection information and image information obtained from these inspection apparatuses being collected to construct a data base and an image file, therein definition of defects is given by combinations of elements which characterize the defect based on the inspection information and the image information obtained from the inspection apparatuses. By giving definition of the defect, characteristics of the defect can be subdivided and known. Therefore, the cause of a defect can be studied.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: April 1, 2003
    Assignees: Hitachi, Ltd., Hitachi Instruments Engineering Co., Ltd.
    Inventors: Fumio Mizuno, Seiji Isogai, Kenji Watanabe, Yasuhiro Yoshitake, Terushige Asakawa, Yuichi Ohyama, Hidekuni Sugimoto, Seiji Ishikawa, Masataka Shiba, Jun Nakazato, Makoto Ariga, Tetsuji Yokouchi, Toshimitsu Hamada, Ikuo Suzuki, Masami Ikota, Mari Nozoe, Isao Miyazaki, Yoshiharu Shigyo
  • Patent number: 6529619
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 4, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Publication number: 20020034326
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Application
    Filed: October 30, 2001
    Publication date: March 21, 2002
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Patent number: 6339653
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: January 15, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Patent number: 6330352
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: December 11, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Publication number: 20010038708
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Application
    Filed: June 29, 2001
    Publication date: November 8, 2001
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Publication number: 20010001015
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Application
    Filed: January 3, 2001
    Publication date: May 10, 2001
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Patent number: 6185322
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: February 6, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Patent number: 5841893
    Abstract: The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And, in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: November 24, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Ishikawa, Masao Sakata, Jun Nakazato, Sadao Shimoyashiro, Hiroto Nagatomo, Yuzo Taniguchi, Osamu Satou, Tsutomu Okabe, Yuzaburo Sakamoto, Kimio Muramatsu, Kazuhiko Matsuoka, Taizo Hashimoto, Yuichi Ohyama, Yutaka Ebara, Isao Miyazaki, Shuichi Hanashima
  • Patent number: 4583223
    Abstract: A first signal generator and a second signal generator for setting measuring conditions of a connection pin of a device under test are disposed in each of a number of signal transmission circuits. Each of the signal generators stores therein information for setting a measuring condition in the form of a digital data, which is D-A converted, and this D-A converted output determines the measuring condition. Analog switches are disposed for selecting as a measuring condition of the connection pin either the D-A converted output of the first signal generator or that of the second signal generator. A first discriminator and a second discriminator for discriminating the quality of measured results of the connection pin of the device under test are disposed in each of the signal transmission circuits.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: April 15, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Fumihito Inoue, Yuichi Ohyama, Kinichi Nakahara, Kazuhiko Kimura