Patents by Inventor Takahiro Matsumoto

Takahiro Matsumoto 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: 20080137052
    Abstract: A measuring apparatus measures a substrate on which a registration mark is formed. The measuring apparatus includes an acquisition unit which acquires the edge interval information of an image of the registration mark sensed under a measurement condition which is changed to make the edge interval of the image of the registration mark have an extreme value corresponding to a different focus position of a projection exposure apparatus, and a calculation unit which calculates a defocus value on the basis of the edge interval information of the image of the registration mark sensed under each measurement condition.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 12, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Matsumoto
  • Patent number: 7385700
    Abstract: An exposure apparatus performs AGA measurement by using a predetermined sample shot group formed on a wafer, and decides an alignment parameter. The exposure apparatus executes wafer alignment processing and exposure processing by using the alignment parameter. The exposure apparatus notifies a central processing unit of AGA measurement results and the alignment parameter. An overlay inspection apparatus measures an actual exposure position on the exposed wafer, and notifies the central processing unit of the measurement result. The central processing unit optimizes alignment processing on the basis of the AGA measurement results, alignment parameter, and actually measured exposure position.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: June 10, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Matsumoto, Hideki Ina, Takehiko Suzuki, Koichi Sentoku, Satoru Oishi
  • Patent number: 7382134
    Abstract: In a superconducting magnets for MRI configured to generate a homogeneous magnetic field and a gradient magnetic field in a space between a top superconducting magnet and a bottom superconducting magnet, the bottom superconducting magnet is provided with a supporting member that supports a helium vessel, and the supporting member is fixed to a vacuum vessel of the bottom superconducting magnet at one end, and is fixed to the floor surface in the vicinity of the end fixed to the vacuum vessel. A high-quality MR image can be thus obtained by preventing direct transmission of oscillation of the gradient coils to the superconducting magnet and reducing oscillation of the gradient coils while achieving a reduction of the overall superconducting magnet in size.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 3, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Takahiro Matsumoto
  • Patent number: 7373213
    Abstract: A management apparatus which manages a parameter for an industrial device acquires AGA measurement results obtained by operating the industrial device with an operation job parameter value and non-operation job parameter value. An inspection apparatus acquires an “inspection result” obtained by inspecting the result of operating the industrial device in the operation job. A change in inspection result upon a change in parameter value is estimated on the basis of the AGA measurement result and inspection result. A variable which minimizes (extreme) both or at least one of the sensitivity (slope) of the inspection result upon a change in parameter value and variations (3?) in inspection result between objects to be processed (e.g., wafers) is set as an optimal parameter.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 13, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Oishi, Hideki Ina, Takehiko Suzuki, Koichi Sentoku, Takahiro Matsumoto
  • Publication number: 20070219495
    Abstract: A control system for a liquid infusion apparatus comprises a plurality of liquid infusion devices, each having a common connector of liquid infusion device side for an electric power supply line and a communication line, a plurality of racks stacked one another, each for receiving each of the liquid infusion devices, a plurality of common connectors of rack side, each mounted on each of the racks a base unit, and a connector provided on the base unit so as to connect an electric power supply line and a communication line to the connectors of lack side. Each of the common connectors of rack side is connected to each of the common connectors of liquid infusion device side, when each of the liquid infusion devices is inserted into each of the respective racks.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 20, 2007
    Applicant: JAPAN SERVO CO., LTD.
    Inventors: Hiroshi Kato, Shunichi Kawamata, Seiji Kojima, Yoshihisa Kagawa, Koji Mizukami, Takahiro Matsumoto
  • Patent number: 7271882
    Abstract: A shape measuring method for measuring a shape of a surface of an object. The method includes a first measuring step for measuring the surface of the object by detecting light from the object, and a second measuring step for measuring the surface of the object by relatively scanning a probe and the object. A scanning speed changes on the basis of the result of the first measurement step.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: September 18, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Ina, Koichi Sentoku, Takahiro Matsumoto
  • Patent number: 7265841
    Abstract: A method for calculating a position of an image of an alignment mark formed on an object to be detected includes the steps of obtaining first information indicative of a center position in the alignment mark based on a detection signal, obtaining a waveform characteristic of the detection signal as second information, and correcting the first information based on the second information that has been obtained, and a measurement error of the center position of the alignment mark, which result from an optical system for detecting the alignment mark.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: September 4, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Matsumoto
  • Publication number: 20070188758
    Abstract: A method for calculating a position of an image of an alignment mark formed on an object to be detected includes the steps of obtaining first information indicative of a center position in the alignment mark based on a detection signal, obtaining a waveform characteristic of the detection signal as second information, and correcting the first information based on the second information that has been obtained, and a measurement error of the center position of the alignment mark, which result from an optical system for detecting the alignment mark.
    Type: Application
    Filed: April 12, 2007
    Publication date: August 16, 2007
    Inventor: TAKAHIRO MATSUMOTO
  • Patent number: 7253885
    Abstract: A wavelength selecting method for selecting a wavelength of light, the light being used to detect a position of a target with a signal from an image of an alignment mark covered with resist, includes the steps of obtaining a reflectance of the resist at a position outside the alignment mark by irradiating lights having plural wavelengths to the resist at the position, and selecting one of the lights which one has a wavelength that provides the maximum value of reflectance among the reflectances measured by the measuring step or which one has a wavelength that falls within a predetermined wave range centering on the wavelength that provide the maximum reflectance.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: August 7, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Matsumoto
  • Publication number: 20070171392
    Abstract: A wavelength selecting method for selecting a wavelength of light, the light being used to detect a position of a target with a signal from an image of an alignment mark covered with resist, includes the steps of obtaining a reflectance of the resist at a position outside the alignment mark by irradiating lights having plural wavelengths to the resist at the position, and selecting one of the lights which one has a wavelength that provides the maximum value of reflectance among the reflectances measured by the measuring step or which one has a wavelength that falls within a predetermined wave range centering on the wavelength that provide the maximum reflectance.
    Type: Application
    Filed: April 3, 2007
    Publication date: July 26, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Matsumoto
  • Publication number: 20070139654
    Abstract: Provided is a surface plasmon resonance sensor device having excellent measurement accuracy. The device is equipped with an optical fiber 2,32 for introducing a light incident from one end thereof to the other end, a core exposed portion 3,33a formed to expose core 5,33 of the optical fiber 2,32, and a thin metal film 4,35 formed on the core exposed portion 3,33a and capable of exciting surface plasmon. The core exposed portion 3 is a first microsphere 3 disposed at the other end portion of the optical fiber 2 and the thin metal film 4 is formed on the surface of the microsphere 3. The thin metal film may be a first fine-metal-particle thin film 25 in which fine metal particles 24 have been distributed uniformly. The core exposed portion 33a is disposed in the midway of the optical fiber 32 and the thin metal film 35 is formed to cover therewith the entire surface of the core exposed portion 33a.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 21, 2007
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Takahiro Matsumoto, Makoto Tomita
  • Patent number: 7229566
    Abstract: A two-dimensional image of an alignment mark 30 is acquired by an alignment scope 15 at step S61, and the two-dimensional image acquired at step S61 is converted to a light-intensity signal line by line at step S62. A selection as to whether each line signal is valid or unnecessary is made at step S63. The amount of positional deviation of the alignment mark 30 is calculated using only valid line signals at step S64.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: June 12, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Matsumoto, Hideki Ina
  • Patent number: 7205767
    Abstract: The present invention has been made in order to decrease vibrations of gradient-magnetic-field coils in a magnetic apparatus for a magnetic resonance imaging diagnosis system so as to improve the image quality of magnetic resonance images. The magnetic apparatus includes: a superconductive electromagnet having pairs of superconductive coils for generating a uniform static magnetic field region, a pair of vacuum containers each for housing one of the superconductive coils of each of the pairs thereof, and a vacuum container connecting member for connecting the pair of vacuum containers; and a pair of gradient-magnetic-field coils for generating a gradient magnetic field having a gradient in a uniform static magnetic field region.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: April 17, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takahiro Matsumoto, Seijirou Itou
  • Publication number: 20070081161
    Abstract: A method for detecting disposition of plurality of exposure shot areas of an object that is to be exposed includes a first detection step of detecting the alignment marks on the object, an evaluation step of evaluating randomness of the alignment marks based on the detection result by the first detection step, a determination step of determining a number smaller than the total number of alignment marks on the object based on the evaluation result by the evaluation step, and a second detection step of detecting the disposition of the plurality of exposure shot areas by detecting alignment marks corresponding to the number determined by the determination step.
    Type: Application
    Filed: December 11, 2006
    Publication date: April 12, 2007
    Inventor: Takahiro MATSUMOTO
  • Publication number: 20070076843
    Abstract: A method of making a gap between first and second objects have a predetermined value includes steps of introducing light to an entry window on the first object, detecting an intensity of light from an exit window on the first object, and positioning the second object, with respect to a direction concerning the gap, based on an intensity of light detected in the detecting step. The exit window is positioned so that light enters through the entry window of the first object, reflects off the second object, and then enters the exit window of the first object if the gap has the predetermined value.
    Type: Application
    Filed: November 2, 2006
    Publication date: April 5, 2007
    Inventor: Takahiro Matsumoto
  • Patent number: 7190455
    Abstract: A method for detecting disposition of plurality of exposure shot areas of an object that is to be exposed includes a first detection step of detecting the alignment marks on the object, an evaluation step of evaluating randomness of the alignment marks based on the detection result by the first detection step, a determination step of determining a number smaller than the total number of alignment marks on the object based on the evaluation result by the evaluation step, and a second detection step of detecting the disposition of the plurality of exposure shot areas by detecting alignment marks corresponding to the number determined by the determination step.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: March 13, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Matsumoto
  • Patent number: 7190760
    Abstract: A method of making a gap between first and second objects have a predetermined value includes steps of introducing light to an entry window on the first object, detecting an intensity of light from an exit window on the first object, and positioning the second object, with respect to a direction concerning the gap, based on an intensity of light detected in the detecting step. The exit window is positioned so that light enters through the entry window of the first object, reflects off the second object, and then enters the exit window of the first object if the gap has the predetermined value.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: March 13, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Matsumoto
  • Publication number: 20070041417
    Abstract: A lighting system includes a microwave resonator (2) for generating a standing microwave in the internal space, and a gas cell (6) enclosing a medium is disposed in the internal space of the microwave resonator 2. The lighting system excites the medium in the gas cell (6) by the standing microwave to generate light. The gas cell (6) is replaceably mounted on the microwave resonator (2). The generated light is output to the outside of the microwave resonator (2) through a light lead-out hole (26). Thereby, it is possible to provide a lighting system (including a gas laser) capable of emitting light efficiently with a compact and inexpensive device configuration and of achieving a long life. Moreover, it can also be used as a lighting system in the THz-wave region by enclosing the medium for generating light in the far-infrared region in the gas cell (6).
    Type: Application
    Filed: August 14, 2006
    Publication date: February 22, 2007
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Takahiro Matsumoto, Masayuki Kanechika
  • Publication number: 20060290351
    Abstract: In a superconducting magnets for MRI configured to generate a homogeneous magnetic field and a gradient magnetic field in a space between a top superconducting magnet and a bottom superconducting magnet, the bottom superconducting magnet is provided with a supporting member that supports a helium vessel, and the supporting member is fixed to a vacuum vessel of the bottom superconducting magnet at one end, and is fixed to the floor surface in the vicinity of the end fixed to the vacuum vessel. A high-quality MR image can be thus obtained by preventing direct transmission of oscillation of the gradient coils to the superconducting magnet and reducing oscillation of the gradient coils while achieving a reduction of the overall superconducting magnet in size.
    Type: Application
    Filed: December 19, 2005
    Publication date: December 28, 2006
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventor: Takahiro Matsumoto
  • Publication number: 20060241894
    Abstract: A position detection method for detecting the position of marks comprises the following steps: a step for detecting first information relating to the position of the mark by detecting light from the mark under first measurement conditions; a step for detecting second information relating to the position of the mark by detecting light from the mark under second measurement conditions which differ from the first measurement conditions; and a step for detecting the position of the mark based on the first and second information, thereby providing a high-precision position detecting method and device serving as an alignment or overlaying detection device in an exposure apparatuses used in manufacturing semiconductor devices, wherein position detection precision is not lost even in the event that the alignment marks are not symmetrical or there are irregularities in the non-symmetry of multiple alignment marks within the same wafer.
    Type: Application
    Filed: June 26, 2006
    Publication date: October 26, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Matsumoto, Hideki Ina