Patents by Inventor Shigeru Ishimoto
Shigeru Ishimoto 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: 11906333Abstract: Data is utilized more efficiently and effectively. A position detection device includes a plurality of scales that each record absolute data embedded with a scale ID for identifying a scale, a detector that detects the absolute data from each of the plurality of scales, and an extractor that extracts, from the detected absolute data, the scale ID and position data representing the position of the scale.Type: GrantFiled: October 9, 2019Date of Patent: February 20, 2024Assignee: DMG MORI CO., LTD.Inventors: Shigeru Ishimoto, Kayoko Taniguchi, Chihiro Murayama
-
Patent number: 11287287Abstract: Provided is a highly reliable abnormal state determination system that can prevent erroneous determination even in a case where a determination condition for determining an abnormal state in measurement using a sensor cannot be changed. Provided is an abnormal state determination system 100 including: an abnormal state determination unit 40 configured to determine an abnormal state by using a detection signal based on a signal output from a sensor 10; and a specific processing unit 50 configured to, when a predetermined condition is satisfied, perform control processing for adjusting strength of the detection signal before the detection signal is input to the abnormal state determination unit 40.Type: GrantFiled: July 23, 2019Date of Patent: March 29, 2022Assignee: DMG MORI Co., Ltd.Inventors: Shigeru Ishimoto, Koichi Hihara
-
Publication number: 20200132505Abstract: Data is utilized more efficiently and effectively. A position detection device includes a plurality of scales that each record absolute data embedded with a scale ID for identifying a scale, a detector that detects the absolute data from each of the plurality of scales, and an extractor that extracts, from the detected absolute data, the scale ID and position data representing the position of the scale.Type: ApplicationFiled: October 9, 2019Publication date: April 30, 2020Inventors: Shigeru Ishimoto, Kayoko Taniguchi, Chihiro Murayama
-
Publication number: 20200049531Abstract: Provided is a highly reliable abnormal state determination system that can prevent erroneous determination even in a case where a determination condition for determining an abnormal state in measurement using a sensor cannot be changed. Provided is an abnormal state determination system 100 including: an abnormal state determination unit 40 configured to determine an abnormal state by using a detection signal based on a signal output from a sensor 10; and a specific processing unit 50 configured to, when a predetermined condition is satisfied, perform control processing for adjusting strength of the detection signal before the detection signal is input to the abnormal state determination unit 40.Type: ApplicationFiled: July 23, 2019Publication date: February 13, 2020Inventors: Shigeru Ishimoto, Koichi Hihara
-
Patent number: 10048093Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of ½n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(?+?+ 1/7+ . . . 1/(2m+1)).Type: GrantFiled: May 19, 2017Date of Patent: August 14, 2018Assignee: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto, Mitsugu Yoshihiro
-
Patent number: 10024691Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of ½n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(?+?+ 1/7+ . . . 1/(2m+1)).Type: GrantFiled: May 19, 2017Date of Patent: July 17, 2018Assignee: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto, Mitsugu Yoshihiro
-
Publication number: 20170307409Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of 1/2n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(1/3+1/5+1/7+ . . . 1/(2m+1)).Type: ApplicationFiled: May 19, 2017Publication date: October 26, 2017Applicant: DMG MORI SEIKI CO., LTD.Inventors: Masaaki KUSUMI, Yusuke TAKEI, Shigeru ISHIMOTO, Mitsugu YOSHIHIRO
-
Publication number: 20170284830Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of ½n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(?+?+ 1/7+ . . . 1/(2m+1)).Type: ApplicationFiled: May 19, 2017Publication date: October 5, 2017Applicant: DMG MORI SEIKI CO., LTD.Inventors: Masaaki KUSUMI, Yusuke TAKEI, Shigeru ISHIMOTO, Mitsugu YOSHIHIRO
-
Patent number: 9733317Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of 1/2n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(1/3+1/5+1/7+ . . . 1/(2m+1)).Type: GrantFiled: March 6, 2015Date of Patent: August 15, 2017Assignee: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto, Mitsugu Yoshihiro
-
Patent number: 9719805Abstract: A highly accurate position detection is performed by the use of a magneto-resistance effect element such as a TMR element. At least two magnetic detecting elements 21-1 and 21-2 are provided to detect leakage magnetism from a scale 11 having a magnetic signal magnetically recorded thereon, and to output a recording signal of a position where the leakage magnetism is detected. The at least two magnetic detecting elements 21-1 and 21-2 are disposed side by side in a direction y perpendicular to a direction x of scanning the scale 11 and also disposed at positions approximately equidistant from a magnetic signal recording surface of the scale 11.Type: GrantFiled: June 4, 2015Date of Patent: August 1, 2017Assignee: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Yusuke Takei, Shigeru Ishimoto
-
Patent number: 9322677Abstract: A position detecting device that includes a recording medium provided with a first recording track in which a non-repetitive signal composed of binary information is recorded and a second recording track in which a signal for specifying a reading section within a section of information of 1 unit for the non-repetitive signal and information reading means that includes a first detection head and a second detection head and for reading each 1 unit information of the non-repetitive signal from the first recording track by using the first detection head in the reading section within a section of information of 1 unit for the non-repetitive signal specified based upon the signal recorded in the second recording track by the second detection head.Type: GrantFiled: October 3, 2013Date of Patent: April 26, 2016Assignee: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Daisuke Uchiyama, Shigeru Ishimoto, Yusuke Takei
-
Publication number: 20150354987Abstract: A highly accurate position detection is performed by the use of a magneto-resistance effect element such as a TMR element. At least two magnetic detecting elements 21-1 and 21-2 are provided to detect leakage magnetism from a scale 11 having a magnetic signal magnetically recorded thereon, and to output a recording signal of a position where the leakage magnetism is detected. The at least two magnetic detecting elements 21-1 and 21-2 are disposed side by side in a direction y perpendicular to a direction x of scanning the scale 11 and also disposed at positions approximately equidistant from a magnetic signal recording surface of the scale 11.Type: ApplicationFiled: June 4, 2015Publication date: December 10, 2015Inventors: Masaaki KUSUMI, Yusuke TAKEI, Shigeru ISHIMOTO
-
Publication number: 20150253162Abstract: A magnetism detecting element detects a leakage magnetism from a scale, on which a magnetic signal with a constant period is recorded, and a relative position between the scale and the magnetism detecting element is detected. The magnetism detecting elements are arranged, along a detection direction of the magnetic signal relative to the scale, in a pattern with a pitch of 1/2n (n is a prime number of 3 or more) of a wavelength ?? of a signal output by the element. Furthermore, as the pattern for cancelling m odd-order harmonics, the m-th power of 2 magnetism detecting elements are arranged within a range in which a pitch distance L of the magnetism detecting element farthest in the detection direction is expressed by L=(??/2)×(1/3+1/5+1/7+ . . . 1/(2m+1)).Type: ApplicationFiled: March 6, 2015Publication date: September 10, 2015Inventors: Masaaki KUSUMI, Yusuke TAKEI, Shigeru ISHIMOTO, Mitsugu YOSHIHIRO
-
Publication number: 20150058655Abstract: According to one embodiment, there is provided an interface circuit including a plurality of units. Each of the plurality of units includes a clock interface, a data interface, and a selector. The clock interface receives a clock and transfers the clock. The data interface receives data and transfers the data. The selector selects a clock and supplies the selected clock to the data interface such that the data interface transfers the data in synchronization with the selected clock.Type: ApplicationFiled: March 11, 2014Publication date: February 26, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shigeru Ishimoto, Motoaki Koyama, Seiichiro Saito, Hiroyuki Michie, Kazuya Kimura
-
Publication number: 20140097833Abstract: To provide a position detecting device capable of easily obtaining a stable recording state without using “absence of record” upon reproducing a binary signal. The position detecting device is provided with a scale unit 10 having an absolute track 11 in which non-repetitive signals composed of binary information are recorded and an incremental track 12 in which a signal for specifying a reading section within a section of information of 1 unit for the non-repetitive signal is recorded; and within a reading section in a section of information of 1 unit for the repetitive signal specified based upon the signal recorded in the incremental track 12, each 1 unit information of the non-repetitive signal is read from the absolute track 11 by an absolute pattern detection head 21. In the absolute track 11, each 1 unit information is recorded in an effective section longer than the reading section within the section of information of 1 unit for the non-repetitive signal.Type: ApplicationFiled: October 3, 2013Publication date: April 10, 2014Applicant: DMG MORI SEIKI CO., LTD.Inventors: Masaaki Kusumi, Daisuke Uchiyama, Shigeru Ishimoto, Yusuke Takei
-
Patent number: 6772101Abstract: Angle data ranging from 0° to 360° obtained by performing polar conversion with respect to a periodic signal are input to a low pass filter having: a phase accumulator for outputting smoothed angle data; a phase comparator for obtaining a phase error between the angle data and the smoothed angle data; a first amplifier for amplifying the phase error; a second amplifier for further amplifying the phase error; an integrator for integrating the phase error PE amplified by the second amplifier to obtain a velocity error; and an adder for adding the phase error amplified by the first amplifier and the velocity error to determine a control voltage. The phase accumulator controls the frequency of the smoothed angle data so that the phase error is zero based on the control voltage to remove a high frequency component in the angle data.Type: GrantFiled: August 28, 2000Date of Patent: August 3, 2004Assignee: Sony Precision Technology Inc.Inventors: Masato Tanaka, Shigeru Ishimoto, Toyohiko Matsuda, Katsumi Kitamura
-
Patent number: 6772088Abstract: A position transducer capable of accurately detecting an n-bit code by a small number of ABS detectors when there is provided one ABS track. In an ABS head, the ABS detectors 101 to 10n+m are disposed for a distance &lgr;1 between the first ABS detector 101 and (n+m)th ABS detector 10n+m to satisfy a requirement (n−1)&lgr;+2&dgr;<&lgr;1 and a distance &lgr;2 between two successive ones of the ABS detectors to satisfy a requirement 2&dgr;<&lgr;2<&lgr;−2&dgr;, so that at least one ABS detector is opposite to a stable area T in each of micro-areas at n successive bits.Type: GrantFiled: February 21, 2003Date of Patent: August 3, 2004Assignee: Sony Precision Technology Inc.Inventors: Yasuo Nekado, Michio Okano, Shigeru Ishimoto, Mitsuru Ohno, Masaaki Kusumi
-
Patent number: 6693565Abstract: There is provided a position transducer (1) capable of accurately detecting an n-bit code by n ABS detectors from one ABS track. When an INC value is under j or over k, signal output from each of the ABS detectors is binarized based on a threshold h and also based on a threshold l. First, an ABS value decider (24) decides that a bit is “H” when it has been judged as being “H” on the basis of both the thresholds and a bit is “L” when it is has been judged as being “L” on the basis of both the thresholds. When the INC value is under j, a lower bit has the same code as that of the deiced bit. So, the ABS value decider (24) decides that the lower bit is “H” or “L”. On the other hand, when the INC value is over k, an upper bit has the same code as the decided code. Thus, the ABS value decider (24) decides that the upper bit is “H” or “L”.Type: GrantFiled: February 21, 2003Date of Patent: February 17, 2004Assignee: Sony Precision Technology Inc.Inventors: Masaaki Kusumi, Michio Okano, Shigeru Ishimoto, Mitsuru Ohno, Yasuo Nekado
-
Publication number: 20030187608Abstract: A position transducer capable of accurately detecting an n-bit code by a small number of ABS detectors when there is provided one ABS track. In an ABS head, the ABS detectors 101 to 10n+m are disposed for a distance &lgr;1 between the first ABS detector 101 and (n+m)th ABS detector 10n+m to satisfy a requirement (n−1)&lgr;+2&dgr;<&lgr;1 and a distance &lgr;2 between two successive ones of the ABS detectors to satisfy a requirement 2&dgr;<&lgr;2<&lgr;−2&dgr;, so that at least one ABS detector is opposite to a stable area T in each of micro-areas at n successive bits.Type: ApplicationFiled: February 21, 2003Publication date: October 2, 2003Inventors: Yasuo Nekado, Michio Okano, Shigeru Ishimoto, Mitsuru Ohno, Masaaki Kusumi
-
Publication number: 20030187609Abstract: There is provided a position transducer (1) capable of accurately detecting an n-bit code by n ABS detectors from one ABS track. When an INC value is under j or over k, signal output from each of the ABS detectors is binarized based on a threshlold h and also based on a threshold l. First, an ABS value decider (24) decides that a bit is “H” when it has been judged as being “H” on the basis of both the thresholds and a bit is “L” when it is has been judged as being “L” on the basis of both the thresholds. When the INC value is under j, a lower bit has the same code as that of the deiced bit. So, the ABS value decider (24) decides that the lower bit is “H” or “L”. On the other hand, when the INC value is over k, an upper bit has the same code as the decided code. Thus, the ABS value decider (24) decides that the upper bit is “H” or “L”.Type: ApplicationFiled: February 21, 2003Publication date: October 2, 2003Inventors: Masaaki Kusumi, Michio Okano, Shigeru Ishimoto, Mitsuru Ohno, Yasuo Nekado