Patents by Inventor Akira Nakagawa

Akira Nakagawa 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).

  • PLASMA ETCHING METHOD
    Publication number: 20140144876
    Abstract: A plasma etching method using a plasma etching apparatus including a lower electrode and an upper electrode is provided. The plasma etching method includes a first etching step of performing plasma etching using a first process gas and a second etching step of performing the plasma etching using a second process gas. The adhesion of a radical of the second process gas to an object of processing is less than the adhesion of a radical of the first process gas to the object of processing. While alternately repeating a first condition of turning on high-frequency electric power for plasma generation and a second condition of turning off the high-frequency electric power, the second etching step applies a negative direct-current voltage to the upper electrode so that the absolute value of the applied voltage is greater in a period of the second condition than in a period of the first condition.
    Type: Application
    Filed: July 30, 2012
    Publication date: May 29, 2014
    Applicant: Tokyo Electron Limited
    Inventors: Akira Nakagawa, Fumio Yamazaki, Hiromi Mochizuki
  • Plasma etching method and computer-readable storage medium
    Patent number: 8679358
    Abstract: A plasma etching method includes a preparation process for performing a plasma etching process using a processing gas including a first processing gas containing carbon (C) and fluorine (F), a ratio (C/F) of the first processing gas having a first value, and obtaining a residual amount of the mask layer corresponding to a variation point where a variation amount of the bowing CD is increased; a first plasma etching process using the processing gas including the first processing gas until a residual amount of the mask layer reaches the variation point; and a second plasma etching process performed after the first plasma etching process. The second plasma etching process is performed by using a processing gas including at least a second processing gas containing carbon (C) and fluorine (F), and a ratio (C/F) of the second processing gas is smaller than the first value.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 25, 2014
    Assignee: Tokyo Electron Limited
    Inventor: Akira Nakagawa
  • Motion picture encoding device and motion picture decoding device
    Patent number: 8665956
    Abstract: When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 4, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi
  • Arc welding control method and arc welding apparatus
    Patent number: 8664568
    Abstract: An arc welding control method carries out weld with a welding current and a welding speed different from those at a steady welding period according to intrinsic resistivity of a weld wire or a base material at a welding start period and a welding end period, so as to obtain a satisfactory welding quality.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Junji Fujiwara, Atsuhiro Kawamoto, Akira Nakagawa
  • Motion picture encoding device and motion picture decoding device
    Patent number: 8665957
    Abstract: When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 4, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi
  • Motion picture encoding device and motion picture decoding device
    Patent number: 8660184
    Abstract: When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: February 25, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi
  • Motion picture encoding device and motion picture decoding device
    Patent number: 8654851
    Abstract: When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: February 18, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Hidenobu Miyoshi
  • Motion vector encoding device and decoding device
    Patent number: 8654856
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: February 18, 2014
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Motion vector encoding device and decoding device
    Patent number: 8599923
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 3, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Lubricant composition
    Patent number: 8598098
    Abstract: A lubricant composition applicable to a sliding section or sliding member of an automotive internal combustion engine or power transmission apparatus to significantly lower a friction coefficient. The lubricant composition contains a base oil for a lubricating oil, an oxygen-containing organic compound, a diamond nano-particle and a dispersant for the diamond nano-particle.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 3, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akira Nakagawa, Yutaka Mabuchi
  • MOTION VIDEO ENCODING APPARATUS, MOTION VIDEO ENCODING METHOD, AND MOTION VIDEO ENCODING COMPUTER PROGRAM
    Publication number: 20130294502
    Abstract: A motion video encoding apparatus includes: a group determining unit which determines, for each block, a group to which the block belongs; a group decode time information computing unit which computes a decode time for each group; a code amount control unit which controls, for each group, an amount of code resulting from entropy encoding each block in the group so that data needed for decoding all of the blocks in the group arrives at a stream receive buffer by a decode time of the group when the data is transmitted at a prescribed transmission rate; a compression unit which compresses the data of each block based on the amount of code of the block; an entropy encoding unit which entropy-encodes the compressed data of each block; and a decode information appending unit which appends, to data to be output, correction information for the decode time of each group.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 7, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Akira NAKAGAWA, Hidenobu MIYOSHI, Junpei KOYAMA
  • Encoding apparatus and decoding apparatus
    Patent number: 8576912
    Abstract: An encoding apparatus having a direct mode as a prediction mode, when a pixel with opposite parity from a top field to a bottom field, for example, is referred to for obtaining a reference vector in the direct mode, performs correction by adding or subtracting a value corresponding to a half pixel to or from a value of the obtained reference vector. The encoding apparatus, when a pixel with opposite parity is referred to for obtaining a first and a second direct vector by temporally scaling the corrected reference vector, performs correction by adding or subtracting a value corresponding to a half pixel to or from values of the obtained direct vectors.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: November 5, 2013
    Assignee: Fujitsu Limited
    Inventors: Akihiro Yamori, Satoshi Shimada, Akira Nakagawa
  • VIDEO IMAGE ENCODING DEVICE, VIDEO IMAGE ENCODING METHOD, VIDEO IMAGE DECODING DEVICE, AND VIDEO IMAGE DECODING METHOD
    Publication number: 20130287118
    Abstract: A method includes determining a group to which each block belongs, the blocks being obtained by dividing each picture included in video image data; adding, to an output stream, information of groups including blocks; calculating a decode time for groups and adding the decode time to the output stream; calculating a display time for the groups and adding the display time to the output stream; controlling an encode amount so that data used for decoding all of the blocks included in a group arrives at a receiving buffer of a decoding device by the display time; encoding based on the controlled encode amount; and implementing control so that first data in a next picture does not arrive at the receiving buffer by the display time, when the data used for decoding all blocks in a group does not arrive at the receiving buffer by the display time.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 31, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Junpei KOYAMA, Kimihiko KAZUI, Satoshi SHIMADA, Akira NAKAGAWA
  • VIDEO IMAGE ENCODING DEVICE, VIDEO IMAGE ENCODING METHOD, VIDEO IMAGE DECODING DEVICE, AND VIDEO IMAGE DECODING METHOD
    Publication number: 20130287102
    Abstract: A method including determining a group to which each of the plurality of blocks belongs, the plurality of blocks being obtained by dividing each picture included in video image data; adding, to an output stream, group information expressing information of the group; calculating a decode time for each of the groups; determining a decode delay for each of the groups; adding, to the output stream, a delay time of each of the groups; controlling an encode amount so that data used for decoding all of the blocks included in one of the groups arrives at a receiving buffer of a decoding device by a time expressed by the delay time; and performing encoding based on the encode amount controlled at the controlling.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 31, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Junpei KOYAMA, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa
  • VIDEO IMAGE ENCODING DEVICE, VIDEO IMAGE ENCODING METHOD, VIDEO IMAGE DECODING DEVICE, AND VIDEO IMAGE DECODING METHOD
    Publication number: 20130287117
    Abstract: A method includes determining a group to which each of a plurality of blocks belongs, the plurality of blocks being obtained by dividing each picture included in video image data; adding, to an output stream, group information expressing the group to which each of the plurality of blocks belongs; calculating an output time for each of the groups; determining output delay for each of the groups; adding, to the output stream, an output delay time from a decode time of each of the groups; controlling an encode amount so that data used for outputting all of the blocks included in one of the groups arrives at a decoding buffer of a decoding device and decoding is completed by an output time expressed by the output delay time; and performing encoding based on the encode amount that has been controlled.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 31, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Junpei KOYAMA, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa
  • Substrate processing method
    Patent number: 8569176
    Abstract: Disclosed is a substrate processing method configured to prevent the occurrence of a bowing shape to form a hole of a vertical processing shape on a mask layer, and to secure a remaining layer quantity as the mask layer. The substrate processing method receives a wafer W in which a mask layer and an intermediate layer are stacked on a target layer to be processed in a chamber, generates plasma of processing gas in the chamber, performs an etching process on wafer W using the plasma, thereby forming a pattern shape on the target layer to be processed through the intermediate layer and the mask layer. The etching process etches the mask layer by applying excitation power of 500 W for generating plasma, maintaining processing pressure at 5 mTorr (9.31×10?1 Pa) or less, and maintain temperature of wafer W in the range of ?10° C. to ?20° C.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 29, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Akira Nakagawa, Yusuke Okazaki, Yoshinobu Hayakawa
  • VIDEO SIGNAL ENCODING APPARATUS AND VIDEO SIGNAL ENCODING METHOD
    Publication number: 20130278823
    Abstract: A processor converts an input video signal via a first filter, and outputs a video signal for a determination obtained by converting the video signal via a second filter. Both filters satisfy a stipulated condition. The processor calculates the degree of matching between the input video signal and the video signal for the determination. The processor determines whether or not the input video signal has been converted by using a filter that satisfies the stipulated condition in conversion at a preceding stage. The processor generates an encoded string by encoding the video signal in the second format converted via the first filter, and the determination result. In this way, whether or not and where a video is that converted by using a filter different from a stipulated filter can be automatically determined.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Shunsuke KOBAYASHI, Akira NAKAGAWA
  • Motion vector encoding device and decoding device
    Patent number: 8553780
    Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: October 8, 2013
    Assignee: Fujitsu Limited
    Inventors: Akira Nakagawa, Taizo Anan, Eishi Morimatsu, Takashi Itoh
  • Pesticidal compositions
    Patent number: 8529926
    Abstract: To provide a formulation composition which improves the controlling effect of an anthranilamide compound against pests. A pesticide composition which is a concentrated composition containing an anthranilamide compound as a pesticidal active ingredient, a dispersant and a hydrophilic organic solvent, characterized in that when the composition is diluted with water, the anthranilamide compound precipitates as solid particles in water.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: September 10, 2013
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Masayuki Morita, Takao Awazu, Akira Nakagawa, Taku Hamamoto
  • COLOR FILTER AND DISPLAY DEVICE
    Publication number: 20130208218
    Abstract: On a color filter substrate (color filter) that displays a plurality of colors that are different from each other, a base material, first and second color filter layers that are formed on the base material and respectively colored yellow and magenta, a first overcoat layer that functions as a color filter layer colored red, and a second overcoat layer that is provided so as to cover the first and second color filter layers and colored cyan are provided.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 15, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhiro Kohara, Akira Nakagawa, Hidekazu Ohshima, Tohru Sakata