Patents by Inventor Hironobu Abe

Hironobu Abe 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: 20090207193
    Abstract: Disclosed herein is a lighting period setting method for a display panel which permits control of the peak luminance level by controlling the total lighting period length which is the sum of all lighting periods per field period, the lighting period setting method including the steps of, calculating the average luminance level across the screen based on input image data, determining light emission mode based on the calculated average luminance level, and setting the number, arrangement and lengths of lighting periods per field period according to the setting conditions defined for the determined light emission mode so as to provide the peak luminance level which is set according to the input image data.
    Type: Application
    Filed: February 10, 2009
    Publication date: August 20, 2009
    Applicant: Sony Corporation
    Inventors: Teppei Isobe, Hiroshi Hasegawa, Hironobu Abe
  • Publication number: 20090201286
    Abstract: Disclosed herein is a light emitting period setting method for a display panel wherein the peak luminance level is varied through control of a total light emitting period length which is the sum total of period lengths of light emitting periods arranged in a one-field period, including a step of setting period lengths of N light emitting periods, which are arranged in a one-field period, in response to the total light emitting period length such that the period lengths of the light emitting periods continue to keep a fixed ratio thereamong, N being equal to or higher than 3.
    Type: Application
    Filed: January 27, 2009
    Publication date: August 13, 2009
    Applicant: Sony Corporation
    Inventors: Hiroshi Hasegawa, Teppei Isobe, Hironobu Abe
  • Patent number: 7486089
    Abstract: In a method for controlling a parallelism between a probe card having a number of probe pins and a mounting table, first, among the probe pins, one or more probe pins corresponding to each of plural distinct locations on an X-Y coordinate system whose origin lies at a probe center are selected. Then, a tip of each of the selected probe pins is detected to obtain position coordinates (X,Y,Z) thereof. Thereafter, a specific point on each of connection lines connecting tips of neighboring selected probe pins is selected and their position coordinates on the connection lines are calculated, wherein the position coordinates of the specific points are set as position coordinates (X,Y,Z) of tips of imaginary probe pins. Subsequently, the parallelism between the probe card and the mounting table based on the position coordinates (X,Y,Z) of the tips of the imaginary probe pins is adjusted.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: February 3, 2009
    Assignee: Tokyo Electron Limited
    Inventor: Hironobu Abe
  • Patent number: 7413604
    Abstract: The present invention provides a process for producing a polycrystal silicon film which comprises a step of forming a polycrystal silicon film by light irradiation of a silicon film set on a substrate, and a step of selecting substrate samples having an average grain size in a plane of the sample of 500 nm or more. According to the present invention, stable production of a high-performance poly-silicon TFT liquid crystal display becomes possible.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: August 19, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Takeda, Masakazu Saito, Yukio Takasaki, Hironobu Abe, Makoto Ohkura, Yoshinobu Kimura, Takeo Shiba
  • Patent number: 7227186
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: June 5, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Publication number: 20070057683
    Abstract: In a method for controlling a parallelism between a probe card having a number of probe pins and a mounting table, first, among the probe pins, one or more probe pins corresponding to each of plural distinct locations on an X-Y coordinate system whose origin lies at a probe center are selected. Then, a tip of each of the selected probe pins is detected to obtain position coordinates (X,Y,Z) thereof. Thereafter, a specific point on each of connection lines connecting tips of neighboring selected probe pins is selected and their position coordinates on the connection lines are calculated, wherein the position coordinates of the specific points are set as position coordinates (X,Y,Z) of tips of imaginary probe pins. Subsequently, the parallelism between the probe card and the mounting table based on the position coordinates (X,Y,Z) of the tips of the imaginary probe pins is adjusted.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 15, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Hironobu Abe
  • Publication number: 20070033391
    Abstract: An RTP packet generating unit 11 packetizes data into packets, and adds identification information to the header of each of the packets, the identification information identifying each of the packets. An RTP packet encrypting unit 13 divides data included in each of the generated packets into blocks, and encrypts the data included in each of the packets on a block-by-block basis using an encryption key which an encryption key sharing unit 12 shares with a receiving client in such a manner that, when encrypting a first block of the data, the packet encrypting unit encrypts it using the identification information for identifying each of the packets, which is contained, as an initial vector, in the header of each of the packets, and, when encrypting each subsequent block of the data, encrypts it according to an encryption method which uses an immediately-previously-encrypted block.
    Type: Application
    Filed: December 9, 2005
    Publication date: February 8, 2007
    Inventors: Takahiro Hiramatsu, Hironobu Abe, Koichi Yamada, Junichi Yokosato
  • Patent number: 6963208
    Abstract: A probe device includes a supporting member for supporting the probe card having a plurality of channels. Each of the channels has a group of probes which are brought into contact with plural electrode pads of one of objects to be inspected. The probe device further includes a channel information creation unit for creating channel information containing a layout of a group of the plurality of channels and an identification number of each of the channels and transmitting the created channel information to a controller, a channel information memory unit for storing the channel information received from the channel information creation unit, and an object layout memory unit for storing layout information of the objects. The controller performs an inspection of the objects based on the channel information stored in the channel information memory unit and the layout information of the objects stored in the object layout memory unit.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 8, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Yukihiko Fukasawa, Hironobu Abe
  • Publication number: 20050202612
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Application
    Filed: May 4, 2005
    Publication date: September 15, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Publication number: 20050140380
    Abstract: A probe device includes a supporting member for supporting the probe card having a plurality of channels. Each of the channels has a group of probes which are brought into contact with plural electrode pads of one of objects to be inspected. The probe device further includes a channel information creation unit for creating channel information containing a layout of a group of the plurality of channels and an identification number of each of the channels and transmitting the created channel information to a controller, a channel information memory unit for storing the channel information received from the channel information creation unit, and an object layout memory unit for storing layout information of the objects. The controller performs an inspection of the objects based on the channel information stored in the channel information memory unit and the layout information of the objects stored in the object layout memory unit.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 30, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yukihiko Fukasawa, Hironobu Abe
  • Patent number: 6903371
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: June 7, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Publication number: 20050051081
    Abstract: The present invention provides a process for producing a polycrystal silicon film which comprises a step of forming a polycrystal silicon film by light irradiation of a silicon film set on a substrate, and a step of selecting substrate samples having an average grain size in a plane of the sample of 500 nm or more. According to the present invention, stable production of a high-performance poly-silicon TFT liquid crystal display becomes possible.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 10, 2005
    Inventors: Kazuo Takeda, Masakazu Saito, Yukio Takasaki, Hironobu Abe, Makoto Ohkura, Yoshinobu Kimura, Takeo Shiba
  • Patent number: 6806099
    Abstract: The present invention provides a process for producing a polycrystal silicon film which comprises a step of forming a polycrystal silicon film by light irraditation of a silicon film set on a substrate, and a step of selecting substrate samples having an average grain size in a plane of the sample of 500 nm or more. According to the present invention, stable production of a high-performance poly-silicon TFT liquid crystal display becomes possible.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: October 19, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Takeda, Masakazu Saito, Yukio Takasaki, Hironobu Abe, Makoto Ohkura, Yoshinobu Kimura, Takeo Shiba
  • Patent number: 6798144
    Abstract: In a flat type plasma discharge display device which includes a discharge sustaining electrode group (X) having first and second discharge sustaining electrodes and an address electrode group (Y) having address electrodes, a plurality of plasma discharge parts (P) are formed for one discharge start part thereof, and the plasma discharge parts relating to one discharge start part are driven sequentially or simultaneously to emit a light, whereby it becomes possible that plasma display of high definition and high luminance is performed in the flat type plasma discharge display device.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: September 28, 2004
    Assignee: Sony Corporation
    Inventors: Hiroshi Mori, Hironobu Abe
  • Publication number: 20040155295
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 12, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Patent number: 6716688
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 6, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Patent number: 6670638
    Abstract: Disclosed is a polysilicon film adapted for use in a liquid crystal display, and method of manufacturing such film. In manufacturing the film, a native oxide layer formed on a surface of an amorphous silicon film is completely removed by a hydrofluoric acid solution, followed by immersing in an H2O2 solution to newly form an extremely thin oxide layer, prior to a crystallizing processing performed by a laser beam irradiation. The crystallizing processing forms a polysilicon film formed of crystal grains Preferentially oriented on the (111) plane in a direction parallel to the substrate surface, an average crystal grain size being not larger than 300 nm, the standard deviation of the grain sizes being not larger than 30% of the average grain size, and the standard deviation of the roughness being not larger than 10% of the average grain size.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 30, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Hironaru Yamaguchi, Yoshinobu Kimura, Makoto Ohkura, Hironobu Abe, Shigeo Shimomura, Masakazu Saitou, Michiko Takahashi
  • Patent number: 6657227
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Publication number: 20030094658
    Abstract: An amorphous silicon film is laser irradiated a plural number of times to make the film composed of a plurality of crystal grains while suppressing the formation of protrusions at the boundaries of the adjoining grains to realize a polycrystalline silicon thin film transistor having at least partly therein the clusters of grains, or the aggregates of at least two crystal grains, with preferred orientation in the plane (111), and having high electron mobility of 200 cm2/Vs or above.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 22, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Takuo Tamura, Kiyoshi Ogata, Yoichi Takahara, Kazuhiko Horikoshi, Hironaru Yamaguchi, Makoto Ohkura, Hironobu Abe, Masakazu Saitou, Yoshinobu Kimura, Toshihiko Itoga
  • Publication number: 20030064571
    Abstract: The present invention provides a process for producing a polycrystal silicon film which comprises a step of forming a polycrystal silicon film by light irradiation of a silicon film set on a substrate, and a step of selecting substrate samples having an average grain size in a plane of the sample of 500 nm or more. According to the present invention, stable production of a high-performance poly-silicon TFT liquid crystal display becomes possible.
    Type: Application
    Filed: January 31, 2002
    Publication date: April 3, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kazuo Takeda, Masakazu Saito, Yukio Takasaki, Hironobu Abe, Makoto Ohkura, Yoshinobu Kimura, Takeo Shiba