Patents by Inventor Yuichiro Yamazaki
Yuichiro Yamazaki 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).
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Patent number: 8649591Abstract: In accordance with an embodiment, a pattern inspection method includes: applying a light generated from a light source to the same region of a substrate in which an inspection target pattern is formed; guiding, imaging and then detecting a reflected light from the substrate, and acquiring a detection signal for each of a plurality of different wavelengths; and adding the detection signals of the different wavelengths in association with an incident position of an imaging surface to generate added image data including information on a wavelength and signal intensity, judging, by the added image data, whether the inspection target pattern has any defect, and when judging that the inspection target pattern has a defect, detecting the position of the defect in a direction perpendicular to the substrate.Type: GrantFiled: December 1, 2011Date of Patent: February 11, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Makoto Kaneko, Takayoshi Fujii, Yusaku Konno, Mitsutoshi Watabiki, Yusuke Ilda, Shinichi Imai, Yuichiro Yamazaki
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Publication number: 20130063721Abstract: In one embodiment, a pattern inspection apparatus includes a light source configured to generate light, and a condenser configured to shape the light into a line beam to illuminate a wafer with the line beam. The apparatus further includes a spectrometer configured to disperse the line beam reflected from the wafer. The apparatus further includes a two-dimensional detector configured to detect the line beam dispersed by the spectrometer, and output a signal including spectrum information of the line beam. The apparatus further includes a comparison unit configured to compare the spectrum information obtained from corresponding places of a repetitive pattern on the wafer with each other, and a determination unit configured to determine whether the wafer includes a defect, based on a comparison result of the spectrum information.Type: ApplicationFiled: March 8, 2012Publication date: March 14, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takayoshi FUJII, Yusaku KONNO, Makoto KANEKO, Yuichiro YAMAZAKI, Mitsutoshi WATABIKI, Kiminori YOSHINO, Yusuke IIDA
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Patent number: 8368031Abstract: An inspection apparatus by an electron beam comprises: an electron-optical device 70 having an electron-optical system for irradiating the object with a primary electron beam from an electron beam source, and a detector for detecting the secondary electron image projected by the electron-optical system; a stage system 50 for holding and moving the object relative to the electron-optical system; a mini-environment chamber 20 for supplying a clean gas to the object to prevent dust from contacting to the object; a working chamber 31 for accommodating the stage device, the working chamber being controllable so as to have a vacuum atmosphere; at least two loading chambers 41, 42 disposed between the mini-environment chamber and the working chamber, adapted to be independently controllable so as to have a vacuum atmosphere; and a loader 60 for transferring the object to the stage system through the loading chambers.Type: GrantFiled: September 23, 2011Date of Patent: February 5, 2013Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Mamoru Nakasuji, Nobuharu Noji, Tohru Satake, Masahiro Hatakeyama, Toshifumi Kimba, Hirosi Sobukawa, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Shin Oowada, Mutsumi Saito, Yuichiro Yamazaki, Takamitsu Nagai, Ichirota Nagahama
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Publication number: 20130018540Abstract: A control unit for a series hybrid vehicle includes a basic required output calculator for calculating a basic required output for driving the vehicle based on a vehicle speed and an accelerator pedal opening, a gradient calculator for calculating a rising gradient of a road surface on which the vehicle runs, a correction output calculator for calculating a correction output which is added to the basic required torque based on the rising gradient, and a target output calculator for calculating, when a required output which results from adding the correction output to the basic required output is larger than a predetermined value, based on the required output, a battery target electric power by which the battery is required to output part of the required output and an engine target output by which the engine is required to output the remaining of the required output.Type: ApplicationFiled: March 31, 2011Publication date: January 17, 2013Inventor: Yuichiro Yamazaki
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Publication number: 20120242995Abstract: In accordance with an embodiment, a pattern inspection apparatus includes a beam splitter, a polarization controller, a phase controller, a wave front distribution controller, and a detector. The beam splitter generates signal light and reference light from light emitted from a light source. The signal light is reflected light from a pattern on a subject to be inspected. The polarization controller is configured to control the polarization angle and polarization phase of the reference light. The phase controller is configured to control the phase of the reference light. The wave front distribution controller is configured to control a wave front distribution of the reference light. The detector is configured to detect light resulting from interference caused by superposing the signal light and the reference light on each other.Type: ApplicationFiled: March 19, 2012Publication date: September 27, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Yusaku KONNO, Naotada OKADA, Shinichi IMAI, Takayoshi FUJII, Mitsutoshi WATABIKI, Makoto KANEKO, Yuichiro YAMAZAKI, Yusuke IIDA
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Publication number: 20120242985Abstract: In accordance with an embodiment, a pattern inspection apparatus includes a stage supporting a substrate with a pattern, a light source irradiating the substrate with light, a detection unit, an optical system, a focus position change unit, a control unit, and a determination unit. The detection unit detects reflected light from the substrate. The optical system leads the light from the light source to the substrate and leads the reflected light to the detection unit. The focus position change unit changes a focus position of the light to the substrate in a direction vertical to the surface of the substrate. The control unit associates the movement of the stage with the light irradiation and controls the stage drive unit and the focus position change unit, thereby changing the focus position. The determination unit determines presence/absence of a defect of the pattern based on the signal from the determination unit.Type: ApplicationFiled: March 13, 2012Publication date: September 27, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Mitsutoshi WATABIKI, Yusuke Iida, Makoto Kaneko, Yuichiro Yamazaki, Yusaku Konno, Shinichi Imai, Takayoshi Fujii
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Publication number: 20120243770Abstract: In accordance with an embodiment, a pattern inspection method includes: applying a light generated from a light source to the same region of a substrate in which an inspection target pattern is formed; guiding, imaging and then detecting a reflected light from the substrate, and acquiring a detection signal for each of a plurality of different wavelengths; and adding the detection signals of the different wavelengths in association with an incident position of an imaging surface to generate added image data including information on a wavelength and signal intensity, judging, by the added image data, whether the inspection target pattern has any defect, and when judging that the inspection target pattern has a defect, detecting the position of the defect in a direction perpendicular to the substrate.Type: ApplicationFiled: December 1, 2011Publication date: September 27, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Makoto KANEKO, Takayoshi FUJII, Yusaku KONNO, Mitsutoshi WATABIKI, Yusuke IIDA, Shinichi IMAI, Yuichiro YAMAZAKI
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Patent number: 8124933Abstract: An apparatus capable of detecting defects of a pattern on a sample with high accuracy and reliability and at a high throughput, and a semiconductor manufacturing method using the same are provided. The electron beam apparatus is a mapping-projection-type electron beam apparatus for observing or evaluating a surface of the sample by irradiating the sample with a primary electron beam and forming on a detector an image of reflected electrons emitted from the sample. An electron impact-type detector such as an electron impact-type CCD or an electron impact-type TDI is used as the detector for detecting the reflected electrons. The reflected electrons are selectively detected from an energy difference between the reflected electrons and secondary electrons emitted from the sample.Type: GrantFiled: August 10, 2009Date of Patent: February 28, 2012Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Kenji Watanabe, Takeshi Murakami, Masahiro Hatakeyama, Yoshinao Hirabayashi, Tohru Satake, Nobuhara Noji, Yuichiro Yamazaki, Ichirota Nagahama
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Publication number: 20120032079Abstract: An inspection apparatus by an electron beam comprises: an electron-optical device 70 having an electron-optical system for irradiating the object with a primary electron beam from an electron beam source, and a detector for detecting the secondary electron image projected by the electron-optical system; a stage system 50 for holding and moving the object relative to the electron-optical system; a mini-environment chamber 20 for supplying a clean gas to the object to prevent dust from contacting to the object; a working chamber 31 for accommodating the stage device, the working chamber being controllable so as to have a vacuum atmosphere; at least two loading chambers 41, 42 disposed between the mini-environment chamber and the working chamber, adapted to be independently controllable so as to have a vacuum atmosphere; and a loader 60 for transferring the object to the stage system through the loading chambers.Type: ApplicationFiled: September 23, 2011Publication date: February 9, 2012Applicants: KABUSHIKI KAISHA TOSHIBA, EBARA CORPORATIONInventors: Mamoru Nakasuji, Nobuharu Noji, Tohru Satake, Masahiro Hatakeyama, Toshifumi Kimba, Hirosi Sobukawa, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Shin Oowada, Mutsumi Saito, Yuichiro Yamazaki, Takamitsu Nagai, Ichirota Nagahama
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Patent number: 8067732Abstract: An electron beam emitted from an electron gun (G) forms a reduced image on a sample (S) through a non-dispersion Wien-filter (5-1), an electromagnetic deflector (11-1), a beam separator (12-1), and a tablet lens (17-1) as an objective lens. The beam separator (12-1) is configured such that a distance by which a secondary electron beam passes through the beam separator is approximately three times longer than a distance by which a primary electron beam passes through the beam separator. Therefore, even if a magnetic field in the beam separator is set to deflect the primary electron beam by a small angle equal to or less than approximately 10 degrees, the secondary electron beam can be deflected by approximately 30 degrees, so that the primary and secondary electron beams are sufficiently separated. Also, since the primary electron beam is deflected by a small angle, less aberration occurs in the primary electron beam.Type: GrantFiled: July 24, 2006Date of Patent: November 29, 2011Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Mamoru Nakasuji, Takeshi Murakami, Tohru Satake, Tsutomi Karimata, Toshifumi Kimba, Matsutaro Miyamoto, Hiroshi Sobukawa, Satoshi Mori, Yuichiro Yamazaki, Ichirota Nagahama
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Patent number: 8053726Abstract: An inspection apparatus by an electron beam comprises: an electron-optical device 70 having an electron-optical system for irradiating the object with a primary electron beam from an electron beam source, and a detector for detecting the secondary electron image projected by the electron-optical system; a stage system 50 for holding and moving the object relative to the electron-optical system; a mini-environment chamber 20 for supplying a clean gas to the object to prevent dust from contacting to the object; a working chamber 31 for accommodating the stage device, the working chamber being controllable so as to have a vacuum atmosphere; at least two loading chambers 41, 42 disposed between the mini-environment chamber and the working chamber, adapted to be independently controllable so as to have a vacuum atmosphere; and a loader 60 for transferring the object to the stage system through the loading chambers.Type: GrantFiled: July 1, 2008Date of Patent: November 8, 2011Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Mamoru Nakasuji, Nobuharu Noji, Tohru Satake, Masahiro Hatakeyama, Toshifumi Kimba, Hirosi Sobukawa, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Shin Oowada, Mutsumi Saito, Yuichiro Yamazaki, Takamitsu Nagai, Ichirota Nagahama
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Patent number: 8035082Abstract: A sample is evaluated at a high throughput by reducing axial chromatic aberration and increasing the transmittance of secondary electrons. Electron beams emitted from an electron gun 1 are irradiated onto a sample 7 through a primary electro-optical system, and electrons consequently emitted from the sample are detected by a detector 12 through a secondary electro-optical system. A Wien filter 8 comprising a multi-pole lens for correcting axial chromatic aberration is disposed between a magnification lens 10 in the secondary electro-optical system and a beam separator 5 for separating a primary electron beam and a secondary electron beam, for correcting axial chromatic aberration caused by an objective lens 14 which comprises an electromagnetic lens having a magnetic gap defined on a sample side.Type: GrantFiled: October 16, 2009Date of Patent: October 11, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Yuichiro Yamazaki, Ichirota Nagahama
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Patent number: 8036445Abstract: A pattern matching method includes: detecting an edge of a pattern in a pattern image obtained by imaging the pattern; segmenting the detected pattern edge to generate a first segment set consisting of first segments; segmenting a pattern edge on reference data which serves as a reference for evaluating the pattern to generate a second segment set consisting of second segments; combining any of the segments in the first segment set with any of the segments in the second segment set to define a segment pair consisting of first and second segments; calculating the compatibility coefficient between every two segment pairs in the defined segment pairs; defining new segment pairs by narrowing down the defined segment pairs by calculating local consistencies of the defined segment pairs on the basis of the calculated compatibility coefficients and by excluding segment pairs having lower local consistencies; determining an optimum segment pair by repeating the calculating the compatibility coefficient and the definiType: GrantFiled: October 21, 2005Date of Patent: October 11, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Atsushi Onishi, Tadashi Mitsui, Yuichiro Yamazaki
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Patent number: 8026277Abstract: Disclosed is a 2-methyl-2-pentenyl ester represented by the general formula (1) [wherein R represents a hydrogen atom or a hydrocarbon group having 1 to 9 carbon atoms which may have a substituent]. The compound has a new-type, unprecedented aroma and/or flavor, particularly a fruity, greenish or floral aroma and/or flavor. The compound can be added to a flavor or fragrance composition in an amount of 0.001 to 30 wt %. The flavor or fragrance composition can be added to a cosmetic product, a toiletry product, a bath agent, a food, a beverage or a pharmaceutical product in an amount of 0.0001 to 30 wt %. All of the compounds of the general formula (1) are novel, except for those compounds of the general formula (1) wherein R represents a methyl group, an isopropyl group, a phenyl group or a mesityl group.Type: GrantFiled: November 2, 2007Date of Patent: September 27, 2011Assignee: Takasago International CorporationInventors: Takashi Aida, Tetsuya Nagasawa, Yuichiro Yamazaki
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Patent number: 8000046Abstract: According to one embodiment, a storage device includes: ahead actuator configured to move a head to an arbitrary position on a disk medium; a write/read module configured to write data to or read data from the disk medium using the head; an adjustment region selector configured to divide the disk medium into a plurality of regions in a circumferential direction, write test data to each of the regions, read the test data to measure signal quality of the each of the regions, compare the signal quality of the each of the regions, and select a parameter adjustment region; and a parameter adjustment module configured to adjust a parameter used for the write/read module to write data to and read data from the disk medium to an optimal value using the selected parameter adjustment region.Type: GrantFiled: December 4, 2009Date of Patent: August 16, 2011Assignee: Toshiba Storage Device CorporationInventor: Yuichiro Yamazaki
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Patent number: 7964637Abstract: A simplified production method of stereoisomer of theaspiran having high optical purity has been desired. An alcohol compound having a specific skeleton is enantioselectively esterified with an enzyme, or an ester compound having a specific skeleton is enantioselectively hydrolyzed with an enzyme. The resultant optically active ester or optically active alcohol is used. Thus, optically active theaspiran having a desired configuration and having a high optical purity is obtained in a satisfactory yield.Type: GrantFiled: September 8, 2006Date of Patent: June 21, 2011Assignee: Takasago International CorporationInventors: Makoto Harada, Hiroyuki Matsuda, Kenya Ishida, Yuichiro Yamazaki
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Patent number: 7903264Abstract: Wavelength dispersion of intensity of light reflected from an evaluation object is measured. A complex refractive index of a substance forming the evaluation object and the environment are prepared. Virtual component ratios comprising a mixture ratio of the substances forming the evaluation object and the environment are prepared. Reflectance wavelength dispersions to the virtual component ratios are calculated. Similar reflectance wavelength dispersions having a small difference with the measured wavelength dispersion are extracted from the reflectance wavelength dispersions. Weighted average to the virtual component ratios used for calculating the similar reflectance wavelength dispersions are calculated to obtain a component ratio of the substance forming the evaluation object and the environment so that weighting is larger when the difference is smaller. A structure of the evaluation object is determined from the calculated component ratio.Type: GrantFiled: August 26, 2008Date of Patent: March 8, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kei Hayasaki, Toru Mikami, Shinichi Ito, Yuichiro Yamazaki, Toshiya Kotani
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Patent number: 7863580Abstract: An electron beam apparatus for providing an evaluation of a sample, such as a semiconductor wafer, that includes a micro-pattern with a minimum line width not greater than 0.1 ?m with high throughput. A primary electron beam generated by an electron gun is irradiated onto a sample and secondary electrons emanating from the sample are formed into an image on a detector by an image projection optical system. An electron gun 61 has a cathode 1 and a drawing electrode 3, and an electron emission surface 1a of the cathode defines a concave surface. The drawing electrode 3 has a convex surface 3a composed of a partial outer surface of a second sphere facing the electron emission surface 1a of the cathode and an aperture 73 formed through the convex surface for passage of the electrons.Type: GrantFiled: June 8, 2007Date of Patent: January 4, 2011Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Masahiro Hatakeyama, Takeshi Murakami, Nobuharu Noji, Mamoru Nakasuji, Hirosi Sobukawa, Satoshi Mori, Tsutomu Karimata, Yuichiro Yamazaki, Ichirota Nagahama
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Patent number: 7847250Abstract: A substrate inspection apparatus includes: an electron beam irradiation device which emits an electron beam and causes the electron beam to irradiate a substrate to be inspected as a primary beam; an electron beam detector which detects at least one of a secondary electron, a reflected electron and a backscattered electron that are generated from the substrate that has been irradiated by the electron beam, and which outputs a signal that forms a one-dimensional or two-dimensional image of a surface of the substrate; a mapping projection optical system which causes imaging of at least one of the secondary electron, the reflected electron and the backscattered electron on the electron beam detector as a secondary beam; and an electromagnetic wave irradiation device which generates an electromagnetic wave and causes the electromagnetic wave to irradiate a location on the surface of the substrate at which the secondary beam is generated.Type: GrantFiled: November 5, 2008Date of Patent: December 7, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Ichirota Nagahama, Yuichiro Yamazaki, Takamitsu Nagai, Motosuke Miyoshi
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Patent number: 7777979Abstract: A magnetic disk device testing method includes obtaining index values indicating the signal quality of an adjacent track at different positions scattered in the width direction in the adjacent track located in the vicinity of a target track on a magnetic disk after repeatedly writing data onto the target track, and determining a representative value of the index values indicating the signal quality of the adjacent track based on the obtained results, while incrementing the number of data write times; and estimating an index value indicating the signal quality of the adjacent track to be obtained where data is written onto the target track a larger number of times than the total number of data write times the data has been actually written in obtaining the index values, the index value being estimated with the use of the representative values decided in the representative value deciding.Type: GrantFiled: October 22, 2008Date of Patent: August 17, 2010Assignee: Toshiba Storage Device CorporationInventors: Katsuji Suzuki, Yuichiro Yamazaki