Patents by Inventor Hiromasa Yamamoto
Hiromasa Yamamoto 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: 11958128Abstract: A laser apparatus includes a laser oscillator; an acousto-optic modulation unit including a first acousto-optic modulator that diffracts a laser beam from the laser oscillator when a first ultrasonic wave is applied and a second acousto-optic modulator that diffracts a higher order beam output from the first acousto-optic modulator when a second ultrasonic wave is applied; and an amplifier that amplifies the laser beam from the acousto-optic modulation unit, a propagation direction of the first ultrasonic wave relative to a diffracted direction of the higher order beam emitted from the first acousto-optic modulator and a propagation direction of the second ultrasonic wave relative to a diffracted direction of a higher order beam emitted from the second acousto-optic modulator being different.Type: GrantFiled: June 30, 2021Date of Patent: April 16, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Koji Funaoka, Tatsuya Yamamoto, Yuzuru Tadokoro, Masayuki Saiki, Hiromasa Mihara, Yoshiharu Kurosaki
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Patent number: 11962081Abstract: An antenna and a radome that covers the antenna are provided, the radome includes a first part, a second part, and a third part each with a surface which is flush to each other, the first part has a beam transmission characteristic corresponding to a scanning angle of 0 degrees of a beam emitted by the antenna with an emission direction directed toward the first part, the second part has a beam transmission characteristic corresponding to a first scanning angle of a beam emitted by the antenna with an emission direction directed toward the second part, and the third part has a beam transmission characteristic corresponding to a second scanning angle of a beam emitted by the antenna with an emission direction directed toward the third part.Type: GrantFiled: July 27, 2021Date of Patent: April 16, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiromasa Nakajima, Shinichi Yamamoto, Michio Takikawa
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Patent number: 11933638Abstract: A method for detecting a phase on a gear includes obtaining a first determination result indicating whether the gear has been detected at a first detection position. A second determination result indicating whether the gear has been detected at a second detection position is obtained. A third angle between the first and second angles is obtained. A third determination result indicating whether the gear has been detected at a third detection position is obtained. The first angle is replaced with the third angle when the third and first determination results are same, or the second angle is replaced with the third angle when the third and first determination results are different. The phase on the gear is detected based on an angle that is between the first angle and the second angle.Type: GrantFiled: August 6, 2020Date of Patent: March 19, 2024Assignee: YAMAZAKI MAZAK CORPORATIONInventors: Kazuya Horibe, Kazumasa Maruta, Hiromasa Yamamoto, Yuki Yamamoto
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Publication number: 20240017367Abstract: A machine tool includes an input interface configured to receive an instruction, an actuator configured to actuate, control circuitry configured to control an actuation of the actuator based on the instruction, a component having a physical state to be affected by the actuation, a sensor configured to detect the physical state, and a computer connected to the control circuitry via an external communication interface.Type: ApplicationFiled: September 28, 2023Publication date: January 18, 2024Applicant: Yamazaki Mazak CorporationInventors: Kazuya HORIBE, Osamu AOYAMA, Yukihiko SAGA, Hiromasa YAMAMOTO, Hyunkoo PARK, Jumpei KITAYAMA
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Patent number: 11578174Abstract: The present invention provides an optical composition from which an optical article having reduced poor appearance such as cloudiness and optical strain during lens base material production can be obtained, and when a photochromic compound is added, a photochromic cured body having excellent photochromism and mechanical strength can also be formed, and a polyrotaxane used therefor. The polyrotaxane has a composite molecular structure formed of an axle molecule and a plurality of cyclic molecules clathrating the axle molecule, satisfying at least one of (X) and (Y). (X): A side chain having a secondary or tertiary hydroxyl group is introduced into at least part of the cyclic molecule of the polyrotaxane. (Y): A side chain having a group represented by -A (A is an organic group, and contains at least one hydroxyl group) is introduced into at least part of the cyclic molecule of the polyrotaxane, and a pKa of the hydroxyl group of the compound represented by H-A is 6 or more and less than 14.Type: GrantFiled: October 10, 2019Date of Patent: February 14, 2023Assignee: Tokuyama CorporationInventors: Yasutomo Shimizu, Katsuhiro Mori, Junji Momoda, Hiromasa Yamamoto
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Patent number: 11542407Abstract: To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it. A fluorinated ether compound represented by A-O—(Rf1O)m—Rf2-Z1-Q1 (R1)b, wherein A is a C1-20 perfluoroalkyl group, Rf1 is a linear fluoroalkylene group, m is an integer of from 2 to 500, Rf2 is a linear fluoroalkylene group, Z1 is a single bond, —(CR2R3)c— (wherein R2 and R3 are a hydrogen atom, a C1-6 monovalent organic group or the like, and c is an integer of from 1 to 10), a specific bond or a bivalent organic group having a specific bond, Q1 is a group having a (b+1) valent ring, R1 is a monovalent organic group having at least one hydrolyzable silyl group, and b is an integer of at least 2.Type: GrantFiled: January 28, 2020Date of Patent: January 3, 2023Assignee: AGC Inc.Inventors: Taiki Hoshino, Keigo Matsuura, Eiichiro Anraku, Masahiro Ito, Hiromasa Yamamoto, Motoshi Aoyama, Yusuke Tomiyori, Yutaka Furukawa
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Publication number: 20220371143Abstract: A workpiece installation method includes obtaining a reference image that shows a reference workpiece whose posture has been adjusted, setting workpiece reference lines on a boundary of a first image area occupied by the reference workpiece in the reference image, obtaining a measurement image that shows a workpiece, generating, using a processor, a measurement combined image in which workpiece reference lines are superimposed on the measurement image and which shows the workpiece reference lines pass through positions respectively identical to workpiece reference line positions, and adjusting a posture of the workpiece such that a boundary of a second image area occupied by the workpiece in the measurement combined image is shown to be substantially parallel to or substantially coincident with the workpiece reference lines.Type: ApplicationFiled: August 5, 2022Publication date: November 24, 2022Applicant: Yamazaki Mazak CorporationInventors: Kazuya HORIBE, Kazumasa MARUTA, Hiromasa YAMAMOTO, Hyunkoo PARK, Masatoshi ITOH, Ryuichi MIZUKAMI
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Patent number: 11365285Abstract: A fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer and a method for producing it are provided. The fluorinated ether compound is represented by A-O—(Rf1O)m-Q1(R1)b, wherein A is a C1-20, perfluoroalkyl group, Rf1 is a perfluoroalkylene group, m is an integer of from 2 to 500, (Rf1O)m a n d may consist of two or more types of Rf1O differing in the number of carbon atoms, Q1 is a (b+1) valent perfluorohydrocarbon group which may have a hydroxy group, R1 is a monovalent organic group having at least one hydrolyzable silyl group, b is an integer of at least 2, and the b R1 may be the same or different.Type: GrantFiled: January 30, 2020Date of Patent: June 21, 2022Assignee: AGC Inc.Inventors: Makoto Uno, Hiromasa Yamamoto, Taiki Hoshino, Keigo Matsuura, Eiichiro Anraku
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Patent number: 11314233Abstract: A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.Type: GrantFiled: October 20, 2020Date of Patent: April 26, 2022Assignee: YAMAZAKI MAZAK CORPORATIONInventors: Hiromasa Yamamoto, Tatsuya Matsuda, Jumpei Kitayama, Kento Yoshida, Masatoshi Itoh
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Patent number: 11246931Abstract: The present invention relates to an active pharmaceutical ingredient carrier and a production method of the same. The active pharmaceutical ingredient carrier includes silica having a volume of a pore with a pore radius of 1 to 100 nm determined by BJH method of 3.0 to 5.0 ml/g, and a peak of a pore radius of 10 to 50 nm determined by BJH method; and an active pharmaceutical ingredient carried by the silica.Type: GrantFiled: May 17, 2018Date of Patent: February 15, 2022Assignee: Tokuyama CorporationInventors: Yoshimi Hironaka, Tadahiro Fukuju, Hiromasa Yamamoto
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Publication number: 20210348024Abstract: To provide a composition with which a surface layer excellent in abrasion resistance and sliding resistance can be formed, and an article. The composition of the present invention comprises a compound represented by the formula (1) and a compound represented by the formula (2), wherein the ratio of the number of moles of the group represented by —CF3 in Rf1 in the formula (1) to the total of the number of moles of the group represented by —CF2— closest to Y1 in Rf2 in the formula (1), the number of moles of the group represented by —CF2— closest to Y2 in Rf3 in the formula (2) and the number of moles of the group represented by —CF2— closest to Y3 in Rf3 in the formula (2), is from 0.001 to 0.Type: ApplicationFiled: July 20, 2021Publication date: November 11, 2021Applicant: AGC Inc.Inventors: Keigo MATSUURA, Taiki HOSHINO, Kiyotaka TAKAO, Makoto UNO, Eiichiro ANRAKU, Motoshi AOYAMA, Naoki KATSUKI, Yusuke TOMIYORI, Toyokazu ENTA, Hiromasa YAMAMOTO
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Publication number: 20210034040Abstract: A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.Type: ApplicationFiled: October 20, 2020Publication date: February 4, 2021Applicant: Yamazaki Mazak CorporationInventors: Hiromasa YAMAMOTO, Tatsuya MATSUDA, Jumpei KITAYAMA, Kento YOSHIDA, Masatoshi ITOH
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Publication number: 20200370923Abstract: A method for detecting a phase on a gear includes obtaining a first determination result indicating whether the gear has been detected at a first detection position. A second determination result indicating whether the gear has been detected at a second detection position is obtained. A third angle between the first and second angles is obtained. A third determination result indicating whether the gear has been detected at a third detection position is obtained. The first angle is replaced with the third angle when the third and first determination results are same, or the second angle is replaced with the third angle when the third and first determination results are different. The phase on the gear is detected based on an angle that is between the first angle and the second angle.Type: ApplicationFiled: August 6, 2020Publication date: November 26, 2020Applicant: Yamazaki Mazak CorporationInventors: Kazuya HORIBE, Kazumasa MARUTA, Hiromasa YAMAMOTO, Yuki YAMAMOTO
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Patent number: 10689349Abstract: In the method, a trione compound represented by the following formula (1) is (i) reduced by NaAlH2(OCH2CH2OCH3)2 and subsequently further reduced by a metal borohydride salt, or (ii) reduced by calcium borohydride, thereby producing an amide alcohol compound represented by the following formula (3) (wherein, R1 and R2 may be the same or different and each represents a hydrogen atom or a protecting group of an ureylene group; R4 represents an alkyl group, an aralkyl group, or an aryl group; and each of R5, R6, and R7 represents a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom).Type: GrantFiled: July 26, 2017Date of Patent: June 23, 2020Assignee: Tokuyama CorporationInventors: Fumiaki Iwasaki, Hiromasa Yamamoto, Kenji Tanaka, Masahiko Seki, Yoshiki Seike
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Publication number: 20200165385Abstract: To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer and a method for producing it. A fluorinated ether compound represented by A-O—(Rf1O)m-Q1(R1)b, wherein A is a C1-20 perfluoroalkyl group, Rf1 is a perfluoroalkylene group, m is an integer of from 2 to 500, (Rf1O)m may consist of two or more types of Rf1O differing in the number of carbon atoms, Q1 is a (b+1) valent perfluorohydrocarbon group which may have a hydroxy group, R1 is a monovalent organic group having at least one hydrolyzable silyl group, b is an integer of at least 2, and the b R1 may be the same or different.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Applicant: AGC IncInventors: Makoto UNO, Hiromasa YAMAMOTO, Taiki HOSHINO, Keigo MATSUURA, Eiichiro ANRAKU
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Publication number: 20200157376Abstract: To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it. A fluorinated ether compound represented by A-O—(Rf1O)m—Rf2—Z1-Q1 (R1)b, wherein A is a C1-20 perfluoroalkyl group, Rf1 is a linear fluoroalkylene group, m is an integer of from 2 to 500, Rf2 is a linear fluoroalkylene group, Z1 is a single bond, —(CR2R3)c— (wherein R2 and R3 are a hydrogen atom, a C1-6 monovalent organic group or the like, and c is an integer of from 1 to 10), a specific bond or a bivalent organic group having a specific bond, Q1 is a group having a (b+1) valent ring, R1 is a monovalent organic group having at least one hydrolyzable silyl group, and b is an integer of at least 2.Type: ApplicationFiled: January 28, 2020Publication date: May 21, 2020Applicant: AGC Inc.Inventors: Taiki HOSHINO, Keigo Matsuura, Eiichiro Anraku, Masahiro Ito, Hiromasa Yamamoto, Motoshi Aoyama, Yusuke Tomiyori, Yutaka Furukawa
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Publication number: 20200147220Abstract: The present invention relates to an active pharmaceutical ingredient carrier and a production method of the same. The active pharmaceutical ingredient carrier includes silica having a volume of a pore with a pore radius of 1 to 100 nm determined by BJH method of 3.0 to 5.0 ml/g, and a peak of a pore radius of 10 to 50 nm determined by BJH method; and an active pharmaceutical ingredient carried by the silica.Type: ApplicationFiled: May 17, 2018Publication date: May 14, 2020Inventors: Yoshimi Hironaka, Tadahiro Fukuju, Hiromasa Yamamoto
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Publication number: 20200125072Abstract: A machine tool management system includes a machine tool, a memory, a display, and a control circuit. The control circuit is configured to record, in the memory, a time point at which detection information with respect to a machine tool is detected and the detection information corresponding to the time point; determine selected detection information among the detection information to satisfy a determination condition; record, in the memory, the selected detection information corresponding to the time point; display a list of the selected detection information according to predetermined display items; extract from the memory at least part of the detection information including one of the selected detection information corresponding to one display item selected among the display items listed on the display; and to display a graph of a change over time in data included in the at least part of the detection information.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicant: Yamazaki Mazak CorporationInventors: Hiromasa YAMAMOTO, Masatoshi ITOH, Kenji SANO, Tatsuya MATSUDA, Kento YOSHIDA, Jumpei KITAYAMA
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Publication number: 20200071467Abstract: The present invention provides an optical composition from which an optical article having reduced poor appearance such as cloudiness and optical strain during lens base material production can be obtained, and when a photochromic compound is added, a photochromic cured body having excellent photochromism and mechanical strength can also be formed, and a polyrotaxane used therefor. The polyrotaxane has a composite molecular structure formed of an axle molecule and a plurality of cyclic molecules clathrating the axle molecule, satisfying at least one of (X) and (Y). (X): A side chain having a secondary or tertiary hydroxyl group is introduced into at least part of the cyclic molecule of the polyrotaxane. (Y): A side chain having a group represented by -A (A is an organic group, and contains at least one hydroxyl group) is introduced into at least part of the cyclic molecule of the polyrotaxane, and a pKa of the hydroxyl group of the compound represented by H-A is 6 or more and less than 14.Type: ApplicationFiled: October 10, 2019Publication date: March 5, 2020Inventors: Yasutomo Shimizu, Katsuhiro Mori, Junji Momoda, Hiromasa Yamamoto
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Publication number: 20190382352Abstract: In the method, a trione compound represented by the following formula (1) is (i) reduced by NaAlH2(OCH2CH2OCH3)2 and subsequently further reduced by a metal borohydride salt, or (ii) reduced by calcium borohydride, thereby producing an amide alcohol compound represented by the following formula (3) (wherein, R1 and R2 may be the same or different and each represents a hydrogen atom or a protecting group of an ureylene group; R4 represents an alkyl group, an aralkyl group, or an aryl group; and each of R5, R6, and R7 represents a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom).Type: ApplicationFiled: July 26, 2017Publication date: December 19, 2019Applicant: Tokuyama CorporationInventors: Fumiaki IWASAKI, Hiromasa YAMAMOTO, Kenji TANAKA, Masahiko SEKI, Yoshiki SEIKE