Patents by Inventor Ryuji Ogawa

Ryuji Ogawa 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: 20240134300
    Abstract: Provided is a toner comprising a toner particle comprising a binder resin and a. silica fine particle, wherein a total content of a polyvalent metal elements in the toner particle is 0.10 to 2.50 ?mol/g, a number-average particle diameter of a primary particle of the silica fine particle is 40 to 500 nm, and in the DD/MAS measurement of solid 29Si-NMR of the silica fine particle, peak PD1 corresponding to a silicon atom represented by Sia in a structure represented by formula (1) and peak PD2 corresponding to a silicon atom represented by Sib in a structure represented by formula (2) are observed, and when an area of the peak PD1 is defined as SD1 and an area of the peak PD2 is defined as SD2, SD1 and SD2 satisfy: 1.2?(SD1+SD2)/SD1?10.0.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 25, 2024
    Inventors: HITOSHI SANO, SHIN KITAMURA, TORU TAKAHASHI, RYUICHIRO MATSUO, RYUJI MURAYAMA, TAKAKUNI KOBORI, YOSHIHIRO OGAWA
  • Publication number: 20240105420
    Abstract: A data generation apparatus of one embodiment includes a processing unit, an evaluation unit, and a conversion unit. The processing unit designs, through optical proximity correction based on a target pattern formed on a substrate using the photomask, a mask pattern corresponding to the target pattern and including a plurality of rectangular regions. The evaluation unit evaluates the mask pattern using a cost function having, as a parameter, a jog length indicating a length of each of the rectangular regions included in the mask pattern in a first direction. The conversion unit converts mask pattern data indicating the mask pattern with an evaluation that meets a predetermined condition to drawing data corresponding to a variable shaped beam drawing process.
    Type: Application
    Filed: June 9, 2023
    Publication date: March 28, 2024
    Applicant: Kioxia Corporation
    Inventors: Katsuyoshi KODERA, Shoji MIMOTOGI, Shunko MAGOSHI, Ryuji OGAWA, Taiki KIMURA
  • Publication number: 20240069457
    Abstract: The toner contains binder resin-containing toner particles and silica fine particle S1, wherein the weight-average particle diameter of the toner is 4.0-15.0 ?m, both inclusive, peaks originating with the silica fine particle S1 are observed in 29 Si-NMR measurement of the silica fine particle S1, and, in the spectrum obtained by 29Si CP/MAS NMR or 29Si DD/MAS NMR, the peak area of a peak corresponding to the D1 unit structure in the silica fine particle S1, the peak area of a peak corresponding to the D2 unit structure in the silica fine particle S1, and the peak area of a peak corresponding to the Q unit structure in the silica fine particle S1 satisfy a prescribed relationship.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 29, 2024
    Inventors: RYUJI MURAYAMA, SHIN KITAMURA, TORU TAKAHASHI, DAISUKE TSUJIMOTO, RYUICHIRO MATSUO, HITOSHI SANO, NOBUYUKI FUJITA, SHUJI YAMADA, YUKA GUNJI, TAKAKUNI KOBORI, YOSHIHIRO OGAWA, ATSUHIKO OHMORI, HIROKI KAGAWA, KEISUKE ADACHI, TOMOKO SUGITA
  • Patent number: 8307310
    Abstract: A pattern generating method includes: extracting, from a shape of a pattern generated on a substrate, a contour of the pattern shape; setting evaluation points as verification points for the pattern shape on the contour; calculating curvatures on the contour in the evaluation points; and verifying the pattern shape based on whether the curvatures satisfy a predetermined threshold set in advance.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: November 6, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiya Kotani, Hiromitsu Mashita, Takafumi Taguchi, Ryuji Ogawa
  • Patent number: 8234596
    Abstract: A pattern data creating method according to an embodiment of the present invention comprises: extracting marginal error patterns using a first result obtained by applying process simulation to mask pattern data based on an evaluation target cell pattern, applying the process simulation to mask pattern data based on an evaluation target cell pattern with peripheral environment pattern created by arranging a peripheral environment pattern in the marginal error patterns such that a second result obtained by creating mask pattern data and applying the process simulation to the mask pattern data is more deteriorated than the first result, and correcting the evaluation target cell pattern or the mask pattern data based on the evaluation target cell pattern when there is a fatal error.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: July 31, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuji Ogawa, Masahiro Miyairi, Shimon Maeda, Suigen Kyoh, Satoshi Tanaka
  • Publication number: 20120192127
    Abstract: A space area is extracted from a product area on which element patterns are laid out and a mark region is extracted from the space area in the product area under a predetermined condition. The product area is divided into multiple regions and a monitor pattern forming region is selected from the mark regions for each divided region under a predetermined condition. A monitor pattern is laid out within the selected monitor pattern forming region.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi USUI, Ryuji OGAWA, Yuji KODAMA, Shigeki NOJIMA, Shigeru HASEBE, Seiji ISHITANI
  • Patent number: 8127265
    Abstract: A verification method of an integrated circuit pattern includes extracting a pattern which is not greater than a preset pattern size, extracting a pattern edge as a target of lithography simulation from the extracted pattern, and performing the lithography simulation on the extracted pattern edge to verify the integrated circuit pattern.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: February 28, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuji Ogawa, Koji Hashimoto
  • Publication number: 20110294263
    Abstract: A verification method of an integrated circuit pattern includes extracting a pattern which is not greater than a preset pattern size, extracting a pattern edge as a target of lithography simulation from the extracted pattern, and performing the lithography simulation on the extracted pattern edge to verify the integrated circuit pattern.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 1, 2011
    Inventors: Ryuji Ogawa, Koji Hashimoto
  • Patent number: 7987435
    Abstract: A verification method of an integrated circuit pattern includes extracting a pattern which is not greater than a preset pattern size, extracting a pattern edge as a target of lithography simulation from the extracted pattern, and performing the lithography simulation on the extracted pattern edge to verify the integrated circuit pattern.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 26, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuji Ogawa, Koji Hashimoto
  • Publication number: 20110041104
    Abstract: A semiconductor circuit pattern design method includes the following operations. A design pattern is created by placing a plurality of cells in each functional block as a unit of the semiconductor circuit and executing routing among the plurality of placed cells. Mask pattern data based on the design pattern is created. A predictive pattern to be formed on the substrate by the mask pattern data is predicted. A difference amount between the predictive pattern and a target pattern to be formed on the substrate by the mask pattern data is checked. The difference amount is compared with a predetermined allowable variation amount. If the difference amount is larger than the allowable variation amount in the comparison, at least one of placement and routing of the cells in the design pattern corresponding to the mask pattern data used to predict the predictive pattern is corrected.
    Type: Application
    Filed: July 12, 2010
    Publication date: February 17, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kyoko Izuha, Fumihiro Minami, Toshiaki Ueda, Ryuji Ogawa, Satoshi Tanaka
  • Patent number: 7784020
    Abstract: A semiconductor circuit pattern design method includes the following operations. A design pattern is created by placing a plurality of cells in each functional block as a unit of the semiconductor circuit and executing routing among the plurality of placed cells. Mask pattern data based on the design pattern is created. A predictive pattern to be formed on the substrate by the mask pattern data is predicted. A difference amount between the predictive pattern and a target pattern to be formed on the substrate by the mask pattern data is checked. The difference amount is compared with a predetermined allowable variation amount. If the difference amount is larger than the allowable variation amount in the comparison, at least one of placement and routing of the cells in the design pattern corresponding to the mask pattern data used to predict the predictive pattern is corrected.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: August 24, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kyoko Izuha, Fumihiro Minami, Toshiaki Ueda, Ryuji Ogawa, Satoshi Tanaka
  • Publication number: 20100190342
    Abstract: A pattern generating method includes: extracting, from a shape of a pattern generated on a substrate, a contour of the pattern shape; setting evaluation points as verification points for the pattern shape on the contour; calculating curvatures on the contour in the evaluation points; and verifying the pattern shape based on whether the curvatures satisfy a predetermined threshold set in advance.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 29, 2010
    Inventors: Toshiya Kotani, Hiromitsu Mashita, Takafumi Taguchi, Ryuji Ogawa
  • Publication number: 20100185012
    Abstract: A method of producing optically active trans-2-aminocyclohexanol includes allowing racemic trans-2-aminocyclohexanol to react with optically active 2-methoxyphenylacetic acid to produce an optically active 2-methoxyphenylacetic acid salt of optically active trans-2-aminocyclohexanol and separating the salt. An optically active 2-methoxyphenylacetic acid salt of optically active trans-2-aminocyclohexanol is also provided. The method makes it possible to produce optically active trans-2-aminocyclohexanol with ease and a high yield from an industrially-advantageous, inexpensive raw material.
    Type: Application
    Filed: June 18, 2008
    Publication date: July 22, 2010
    Applicant: TORAY FINE CHEMICALS CO., LTD
    Inventors: Ryuji Ogawa, Toshihiro Fujino, Kenichi Sakai
  • Publication number: 20100081294
    Abstract: A pattern data creating method according to an embodiment of the present invention comprises: extracting marginal error patterns using a first result obtained by applying process simulation to mask pattern data based on an evaluation target cell pattern, applying the process simulation to mask pattern data based on an evaluation target cell pattern with peripheral environment pattern created by arranging a peripheral environment pattern in the marginal error patterns such that a second result obtained by creating mask pattern data and applying the process simulation to the mask pattern data is more deteriorated than the first result, and correcting the evaluation target cell pattern or the mask pattern data based on the evaluation target cell pattern when there is a fatal error.
    Type: Application
    Filed: September 1, 2009
    Publication date: April 1, 2010
    Inventors: Ryuji OGAWA, Masahiro Miyairi, Shimon Maeda, Suigen Kyoh, Satoshi Tanaka
  • Publication number: 20100067777
    Abstract: An evaluation pattern generating method including dividing a peripheral area of an evaluation target pattern into a plurality of meshes; calculating an image intensity of a circuit pattern when the evaluation target pattern is transferred onto a wafer by a lithography process in a case where a mask function value is given to a predetermined mesh; calculating a mask function value of the mesh so that a cost function of the image intensity, in which an optical image characteristic amount that affects a transfer performance of the evaluation target pattern to the wafer is set to the image intensity, satisfies a predetermined reference when evaluating a lithography performance of the evaluation target pattern; and generating an evaluation pattern corresponding to the mask function value.
    Type: Application
    Filed: August 6, 2009
    Publication date: March 18, 2010
    Inventors: Katsuyoshi Kodera, Satoshi Tanaka, Shimon Maeda, Suigen Kyoh, Soichi Inoue, Ryuji Ogawa
  • Publication number: 20100031224
    Abstract: A verification method of an integrated circuit pattern includes extracting a pattern which is not greater than a preset pattern size, extracting a pattern edge as a target of lithography simulation from the extracted pattern, and performing the lithography simulation on the extracted pattern edge to verify the integrated circuit pattern.
    Type: Application
    Filed: September 2, 2009
    Publication date: February 4, 2010
    Inventors: Ryuji Ogawa, Koji Hashimoto
  • Patent number: 7194704
    Abstract: There is disclosed a method of producing a design layout by optimizing at least one of design rule, process proximity correction parameter and process parameter, including calculating a processed pattern shape based on a design layout and a process parameter, extracting a dangerous spot having an evaluation value with respect to the processed pattern shape, which does not satisfy a predetermined tolerance, generating a repair guideline of the design layout based on a pattern included in the dangerous spot, and repairing that portion of the design layout which corresponds to the dangerous spot based on the repair guideline.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 20, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiya Kotani, Shigeki Nojima, Suigen Kyoh, Kyoko Izuha, Ryuji Ogawa, Satoshi Tanaka, Soichi Inoue, Hirotaka Ichikawa
  • Publication number: 20070050741
    Abstract: A verification method of an integrated circuit pattern includes extracting a pattern which is not greater than a preset pattern size, extracting a pattern edge as a target of lithography simulation from the extracted pattern, and performing the lithography simulation on the extracted pattern edge to verify the integrated circuit pattern.
    Type: Application
    Filed: August 18, 2006
    Publication date: March 1, 2007
    Inventors: Ryuji Ogawa, Koji Hashimoto
  • Publication number: 20060271907
    Abstract: A semiconductor circuit pattern design method includes the following operations. A design pattern is created by placing a plurality of cells in each functional block as a unit of the semiconductor circuit and executing routing among the plurality of placed cells. Mask pattern data based on the design pattern is created. A predictive pattern to be formed on the substrate by the mask pattern data is predicted. A difference amount between the predictive pattern and a target pattern to be formed on the substrate by the mask pattern data is checked. The difference amount is compared with a predetermined allowable variation amount. If the difference amount is larger than the allowable variation amount in the comparison, at least one of placement and routing of the cells in the design pattern corresponding to the mask pattern data used to predict the predictive pattern is corrected.
    Type: Application
    Filed: May 8, 2006
    Publication date: November 30, 2006
    Inventors: Kyoko Izuha, Fumihiro Minami, Toshiaki Ueda, Ryuji Ogawa, Satoshi Tanaka
  • Patent number: 7117412
    Abstract: A flip-flop circuit includes first and second logic gates, a first selection circuit and a latch circuit. The first logic gate executes a logic operation on a first data signal and a first control signal. The second logic gate executes a logic operation on a second data signal and the first control signal. The operation results of the first and second logic gates are forcibly fixed to a predetermined value irrespective of the first and second data signals, if the first control signal is asserted. A first selection circuit selects one of the operation results of the first and second logic gates, and outputs the selected operation result as a first selection signal. A latch circuit latches the first selection signal.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 3, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuji Ogawa, Toshiki Morimoto