Patents by Inventor Tsukasa Kojima
Tsukasa Kojima 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).
-
Patent number: 11915759Abstract: According to one embodiment, a memory system includes a semiconductor memory and a controller. The semiconductor memory includes: first memory cells, first word lines, a first row decoder, and a driver circuit. The first row decoder includes first transistors capable of coupling the first word lines to first signal lines, and a first block decoder supplying a first block selection signal to the first transistors. When the controller issues a data read command, the first block decoder asserts the first block selection signal to allow the first transistors to transfer a first voltage to a selected first word line, and a second voltage to unselected other first word lines. After data is read, the first block decoder continues asserting the first block selection signal, and the driver circuit transfers a third voltage.Type: GrantFiled: December 20, 2021Date of Patent: February 27, 2024Assignee: KIOXIA CORPORATIONInventors: Masanobu Shirakawa, Marie Takada, Tsukasa Tokutomi, Yoshihisa Kojima, Kiichi Tachi
-
Patent number: 10612917Abstract: A part program generating device includes a CAD data memory storing CAD data of a work piece, a measurement condition definer receiving an input operation performed by a user and defining a measurement procedure, and a part program generator converting the measurement procedure defined by the measurement condition definer into a part program language. The measurement condition definer provides the user with, as a graphical user interface, an editing window capable of editing the measurement procedure in an editing language and a command icon providing a command to be used for defining the measurement procedure as an icon. The command icon includes a circumvention move command icon instructing to overcome a barrier when displacing a sensor from a start point to a target point.Type: GrantFiled: March 13, 2017Date of Patent: April 7, 2020Assignee: MITUTOYO CORPORATIONInventors: Tetsuya Koga, Tsukasa Kojima
-
Patent number: 10521923Abstract: A part program generating device includes a CAD data memory storing CAD data of a work piece, a measurement condition definer receiving an input operation performed by a user and defining a measurement procedure, and a part program generator converting the measurement procedure defined by the measurement condition definer into a part program language. The measurement condition definer provides the user with, as a graphical user interface, an editing window capable of editing the measurement procedure in an editing language and a command icon providing a command to be used for defining the measurement procedure as an icon. The command icon includes a circumvention move command icon instructing to overcome a barrier when displacing a sensor from a start point to a target point.Type: GrantFiled: March 13, 2017Date of Patent: December 31, 2019Assignee: MITUTOYO CORPORATIONInventors: Tetsuya Koga, Tsukasa Kojima
-
Publication number: 20170270685Abstract: A part program generating device includes a CAD data memory storing CAD data of a work piece, a measurement condition definer receiving an input operation performed by a user and defining a measurement procedure, and a part program generator converting the measurement procedure defined by the measurement condition definer into a part program language. The measurement condition definer provides the user with, as a graphical user interface, an editing window capable of editing the measurement procedure in an editing language and a command icon providing a command to be used for defining the measurement procedure as an icon. The command icon includes a circumvention move command icon instructing to overcome a barrier when displacing a sensor from a start point to a target point.Type: ApplicationFiled: March 13, 2017Publication date: September 21, 2017Applicant: MITUTOYO CORPORATIONInventors: Tetsuya KOGA, Tsukasa KOJIMA
-
Publication number: 20170270684Abstract: A part program generating device includes a CAD data memory storing CAD data of a work piece, a measurement condition definer receiving an input operation performed by a user and defining a measurement procedure, and a part program generator converting the measurement procedure defined by the measurement condition definer into a part program language. The measurement condition definer provides the user with, as a graphical user interface, an editing window capable of editing the measurement procedure in an editing language and a command icon providing a command to be used for defining the measurement procedure as an icon. The command icon includes a circumvention move command icon instructing to overcome a barrier when displacing a sensor from a start point to a target point.Type: ApplicationFiled: March 13, 2017Publication date: September 21, 2017Applicant: MITUTOYO CORPORATIONInventors: Tetsuya KOGA, Tsukasa KOJIMA
-
Patent number: 9151588Abstract: A circular shape characteristic measuring device includes a shape measuring device that obtains measured data by measuring a profile shape of a circular cross-section of an object to be measured having the circular cross-section, and a computation device that calculates a circular shape characteristic of the circular cross-section. The computation device includes: an input device configured to input one of three parameters including a cutoff value of the filtering process, a minimum number of samples, and a ratio of a radius of the circular cross-section to a radius of a gauge head; a parameter table that stores a relationship between the three parameters, and based on the input parameter, determines the other two parameters; and a sampler configured to perform sampling of the measured data based on the minimum number of samples.Type: GrantFiled: June 20, 2012Date of Patent: October 6, 2015Assignee: MITUTOYO CORPORATIONInventors: Junji Sakurada, Tsukasa Kojima
-
Patent number: 8538165Abstract: A data memory storing Gerber data containing closed area information of a work; a display displaying a pattern image based on the closed area information of the Gerber data; a detection specification information display program displaying on the display a detection tool specifying a location of edge to be detected, a detection direction and detection length, by superimposing on the pattern image; an image capturing program and an image capturer capturing an image of an area corresponding to the detection tool of the work; an edge detection program performing an edge detection of the location of the edge to be detected with respect to data of a captured image; and a condition determination program determining a light-dark change condition indicating whether an image is changing from a light section to a dark section or from a dark section to a light section along a detection direction.Type: GrantFiled: April 21, 2011Date of Patent: September 17, 2013Assignee: Mitutoyo CorporationInventors: Tsukasa Kojima, Kozo Ariga, Jyota Miyakura
-
Patent number: 8364441Abstract: Surface texture measuring device includes: first pseudo measurement point sequence obtaining means which drives contact piece to trace a surface of reference workpiece having reference shape and obtains locus of certain position of the contact piece as first pseudo measurement point sequence; contact piece model calculating means which calculates, based on first pseudo measurement point sequence and design surface specifying the reference workpiece surface, a contact piece model representing surface shape of the contact piece and placed in pseudo space; second pseudo measurement point sequence obtaining means which places contact piece model such that its surface contacts a reference surface specifying a workpiece surface and it takes the same posture as contact piece in measurement, and calculates reference position of the contact piece model as second pseudo measurement point sequence; and replacement determination means which determines whether to replace contact piece based on second pseudo measurement poType: GrantFiled: April 26, 2010Date of Patent: January 29, 2013Assignee: Mitutoyo CorporationInventor: Tsukasa Kojima
-
Publication number: 20130006579Abstract: A circular shape characteristic measuring device includes a shape measuring device that obtains measured data by measuring a profile shape of a circular cross-section of an object to be measured having the circular cross-section, and a computation device that calculates a circular shape characteristic of the circular cross-section. The computation device includes: an input device configured to input one of three parameters including a cutoff value of the filtering process, a minimum number of samples, and a ratio of a radius of the circular cross-section to a radius of a gauge head; a parameter table that stores a relationship between the three parameters, and based on the input parameter, determines the other two parameters; and a sampler configured to perform sampling of the measured data based on the minimum number of samples.Type: ApplicationFiled: June 20, 2012Publication date: January 3, 2013Applicant: MITUTOYO CORPORATIONInventors: Junji SAKURADA, Tsukasa KOJIMA
-
Patent number: 8196457Abstract: A surface texture measuring device comprises a display control unit operative to display a drawing symbol entry screen having entry areas of drawing symbols. An entry acceptance unit is provided to accept the input of the drawing symbol into the entry area provided in the drawing symbol entry screen. An arithmetic unit is provided to calculate surface texture information that indicates a surface texture of an object to be measured, from the measurement result of surface displacements of the object, based on the drawing symbol accepted at the entry acceptance unit.Type: GrantFiled: July 11, 2008Date of Patent: June 12, 2012Assignee: Mitutoyo CorporationInventors: Hiroyuki Hidaka, Tsukasa Kojima
-
Publication number: 20110280496Abstract: A data memory storing Gerber data containing closed area information of a work; a display displaying a pattern image based on the closed area information of the Gerber data; a detection specification information display program displaying on the display a detection tool specifying a location of edge to be detected, a detection direction and detection length, by superimposing on the pattern image; an image capturing program and an image capturer capturing an image of an area corresponding to the detection tool of the work; an edge detection program performing an edge detection of the location of the edge to be detected with respect to data of a captured image; and a condition determination program determining a light-dark change condition indicating whether an image is changing from a light section to a dark section or from a dark section to a light section along a detection direction.Type: ApplicationFiled: April 21, 2011Publication date: November 17, 2011Applicant: MITUTOYO CORPORATIONInventors: Tsukasa KOJIMA, Kozo ARIGA, Jyota MIYAKURA
-
Publication number: 20100286961Abstract: Surface texture measuring device includes: first pseudo measurement point sequence obtaining means which drives contact piece to trace a surface of reference workpiece having reference shape and obtains locus of certain position of the contact piece as first pseudo measurement point sequence; contact piece model calculating means which calculates, based on first pseudo measurement point sequence and design surface specifying the reference workpiece surface, a contact piece model representing surface shape of the contact piece and placed in pseudo space; second pseudo measurement point sequence obtaining means which places contact piece model such that its surface contacts a reference surface specifying a workpiece surface and it takes the same posture as contact piece in measurement, and calculates reference position of the contact piece model as second pseudo measurement point sequence; and replacement determination means which determines whether to replace contact piece based on second pseudo measurement poType: ApplicationFiled: April 26, 2010Publication date: November 11, 2010Applicant: MITUTOYO CORPORATIONInventor: Tsukasa Kojima
-
Patent number: 7636646Abstract: A roundness measuring device includes: an eccentric position calculation unit calculating, based on a measured distance and a measured angle, a distance between a axis of the measured object and a rotation axis as an eccentric distance, and calculating an angle formed between the detection line and a line segment connecting the rotation axis and the axis of the measured object as an eccentric angle; and a measurement correction unit correcting the measured distance based on the eccentric distance, the eccentric angle, the measured angle, a radius of the measured object, and a length from the center to the surface of the detector unit, and correcting the measured angle by adding a correction angle to the measured angle, the correction angle being formed between the detection line and a line segment connecting the rotation axis and a contact point where the measured object and the detector unit come in contact with one another.Type: GrantFiled: May 16, 2008Date of Patent: December 22, 2009Assignee: Mitutoyo CorporationInventor: Tsukasa Kojima
-
Patent number: 7542872Abstract: A form measuring instrument measures a form of a surface of an object to be measured using a contact to follow the surface. A pseudo-measurement point acquirer acquires positional coordinates of the reference point of the contact as pseudo-measurement points when the contact touches the object at a plurality of locations. A normal vector generator estimates a surface or line along the pseudo-measurement points from the pseudo-measurement points to calculate normal vectors extending from the pseudo-measurement points to the surface or line. A contact model locator locates contact models which specify the surface form of the contact so as to coincide the pseudo-measurement points with reference points of the contact models and so as to coincide attitudes of the contact on measurement with attitudes of the contact models. A measurement point calculator calculates cross points as measurement points, at which the normal vectors cross the surfaces of the located contact models.Type: GrantFiled: February 2, 2007Date of Patent: June 2, 2009Assignee: Mitutoyo CorporationInventors: Soichi Kadowaki, Tsukasa Kojima, Tomonori Goto
-
Publication number: 20090049893Abstract: A surface texture measuring device comprises a display control unit operative to display a drawing symbol entry screen having entry areas of drawing symbols. An entry acceptance unit is provided to accept the input of the drawing symbol into the entry area provided in the drawing symbol entry screen. An arithmetic unit is provided to calculate surface texture information that indicates a surface texture of an object to be measured, from the measurement result of surface displacements of the object, based on the drawing symbol accepted at the entry acceptance unit.Type: ApplicationFiled: July 11, 2008Publication date: February 26, 2009Applicant: MITUTOYO CORPORATIONInventors: Hiroyuki Hidaka, Tsukasa Kojima
-
Publication number: 20090048799Abstract: A roundness measuring device obtains an eccentric position of a measured object with respect to a rotation axis in measuring roundness of the measured object by rotating and driving the measured object. The roundness measuring device includes: a measurement acquisition unit obtaining, as measurements, rotation angles of the measured object and distances from the rotation axis to a surface of the measured object, the distance corresponding to the rotating angle; and an eccentricity calculation unit setting a circular correction circle with its center position provided as variable parameters, calculating the center position of the correction circle that minimizes sum of squares of distances between each of the measurements and the correction circle, in a direction from each of the measurements toward the center position of the correction circle, and determining the center position of the correction circle as the eccentric position.Type: ApplicationFiled: May 14, 2008Publication date: February 19, 2009Applicant: MITUTOYO CORPORATIONInventors: Soichi Kadowaki, Tsukasa Kojima
-
Publication number: 20080294369Abstract: A roundness measuring device includes: an eccentric position calculation unit calculating, based on a measured distance and a measured angle, a distance between a axis of the measured object and a rotation axis as an eccentric distance, and calculating an angle formed between the detection line and a line segment connecting the rotation axis and the axis of the measured object as an eccentric angle; and a measurement correction unit correcting the measured distance based on the eccentric distance, the eccentric angle, the measured angle, a radius of the measured object, and a length from the center to the surface of the detector unit, and correcting the measured angle by adding a correction angle to the measured angle, the correction angle being formed between the detection line and a line segment connecting the rotation axis and a contact point where the measured object and the detector unit come in contact with one another.Type: ApplicationFiled: May 16, 2008Publication date: November 27, 2008Applicant: MITUTOYO CORPORATIONInventor: Tsukasa Kojima
-
Publication number: 20070198212Abstract: A form measuring instrument measures a form of a surface of an object to be measured using a contact to follow the surface. A pseudo-measurement point acquirer acquires positional coordinates of the reference point of the contact as pseudo-measurement points when the contact touches the object at a plurality of locations. A normal vector generator estimates a surface or line along the pseudo-measurement points from the pseudo-measurement points to calculate normal vectors extending from the pseudo-measurement points to the surface or line. A contact model locator locates contact models which specify the surface form of the contact so as to coincide the pseudo-measurement points with reference points of the contact models and so as to coincide attitudes of the contact on measurement with attitudes of the contact models. A measurement point calculator calculates cross points as measurement points, at which the normal vectors cross the surfaces of the located contact models.Type: ApplicationFiled: February 2, 2007Publication date: August 23, 2007Applicant: MITUTOYO CORPORATIONInventors: Soichi Kadowaki, Tsukasa Kojima, Tomonori Goto
-
Patent number: 7036238Abstract: A surface texture measuring instrument has a rotary table on which a workpiece is rotatably mounted, a Z-axis slider capable of moving in a Z-axis direction parallel to a rotation axis of the rotary table, an X-axis slider that is held by the Z-axis slider and is advanceable and retractable in an X-axis direction orthogonal to the rotation axis, a first arm that is held by the X-axis slider and is rotatable around a center line parallel to the X-axis, a second arm that is held by the first arm and is advanceable and retractable in a direction orthogonal to the X-axis, and a detector held by the second arm to measure a surface texture of the workpiece.Type: GrantFiled: December 21, 2004Date of Patent: May 2, 2006Assignee: Mitutoyo CorporationInventors: Tsukasa Kojima, Junji Sakurada, Toshiyuki Tamai, Sadayuki Matsumiya, Takafumi Kano, Kazushi Noguchi
-
Publication number: 20050132591Abstract: A surface texture measuring instrument has a rotary table on which a workpiece is rotatably mounted, a Z-axis slider capable of moving in a Z-axis direction parallel to a rotation axis of the rotary table, an X-axis slider that is held by the Z-axis slider and is advanceable and retractable in an X-axis direction orthogonal to the rotation axis, a first arm that is held by the X-axis slider and is rotatable around a center line parallel to the X-axis, a second arm that is held by the first arm and is advanceable and retractable in a direction orthogonal to the X-axis, and a detector held by the second arm to measure a surface texture of the workpiece.Type: ApplicationFiled: December 21, 2004Publication date: June 23, 2005Applicant: MITUTOYO CORPORATIONInventors: Tsukasa Kojima, Junji Sakurada, Toshiyuki Tamai, Sadayuki Matsumiya, Takafumi Kano, Kazushi Noguchi