Patents by Inventor Tsuyoshi Tada
Tsuyoshi Tada 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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Publication number: 20190064440Abstract: An optical fiber cutter 1 includes a cutter base body 3, a slider 7 movably provided on the cutter base body 3, a blade member 23 provided on the slider 7, an object 30 to be detected provided on either one of the cutter base body 3 and the slider 7, a sensor 32 provided on the other of the cutter base body 3 and the slider 7 and detecting the object 30 to be detected, a controller 34 that, on the basis of the detection results of the sensor 32, calculates the number of movements of the slider 7 to a predetermined position and stores the calculated number, and a display unit 36 that displays the number of movements of the slider 7 to the predetermined position calculated by the controller 34.Type: ApplicationFiled: January 30, 2017Publication date: February 28, 2019Applicant: SEI Optifrontier Co., Ltd.Inventors: Tsuyoshi TADA, Masahiro HASEGAWA, Yoshiyuki NISHIZAWA
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Patent number: 9678274Abstract: An optical fiber cleaver includes a cleaver base body having a holder guide portion which positions a fiber holder holding an optical fiber, and a cleaver lid body attached to the cleaver base body to be openable and closable. A slider having a blade member piercing the optical fiber is attached to the cleaver base body to be movable in a width direction. A pawl member is arranged in one sidewall of the holder guide portion. Further, a count indication mechanism which counts and indicates the number of times the slider returns to an initial position is provided in the cleaver base body. The optical fiber cleaver is configured to enable a counting operation of the count indication mechanism only when the fiber holder is set in the holder guide portion such that the pawl member is pressed.Type: GrantFiled: August 3, 2012Date of Patent: June 13, 2017Assignees: SEI Optifrontier Co., Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masahiro Hasegawa, Tsuyoshi Tada, Toshihiko Homma
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Patent number: 9229166Abstract: The optical fiber cutter 1 comprises a cutter base 3 and a cutter lid 4 attached openably and closably to the cutter base 3. A slider 8 having a blade member for incising an optical fiber is attached to the cutter base 3 so as to be movable widthwise. A switching plate 15 is attached to a rear end part of the cutter base 3, while a switcher 16 is provided on the outer surface side of the switching plate 15. When the switcher 16 is at a first position, the cutter lid 4 engages a stopper, thereby attaining an opening angle of 35°. When the switcher 16 is at a second position, the engagement between the cutter lid 4 and the stopper is released, whereby the cutter lid 4 attains an opening angle of 70°.Type: GrantFiled: August 3, 2012Date of Patent: January 5, 2016Assignees: SEI Optifrontier Co., Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masahiro Hasegawa, Tsuyoshi Tada, Toshihiko Homma
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Patent number: 8884559Abstract: A motor drive device has an inverter circuit, in which at least three sets of a pair of upper and lower arms including a semiconductor switching element on an upper arm and a lower arm is arranged, for supplying voltage to a motor based on ON/OFF operation of each semiconductor switching element by a PWM (Pulse Width Modulation) signal, an inverter drive unit for outputting the PWM signal to each semiconductor switching element of the inverter circuit, a fail safe circuit, arranged between the inverter circuit and the motor, including a semiconductor switching element for shielding the voltage supply from the inverter circuit to the motor for each phase, and a fail safe drive unit for outputting a signal for turning ON/OFF the semiconductor switching element of the fail safe circuit.Type: GrantFiled: May 6, 2011Date of Patent: November 11, 2014Assignee: Omron Automotive Electronics Co., Ltd.Inventors: Hiromi Murata, Tsuyoshi Tada, Masamitsu Hamasaki, Taiki Yamane
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Publication number: 20140151425Abstract: An optical fiber cleaver includes a cleaver base body having a holder guide portion which positions a fiber holder holding an optical fiber, and a cleaver lid body attached to the cleaver base body to be openable and closable. A slider having a blade member piercing the optical fiber is attached to the cleaver base body to be movable in a width direction. A pawl member is arranged in one sidewall of the holder guide portion. Further, a count indication mechanism which counts and indicates the number of times the slider returns to an initial position is provided in the cleaver base body. The optical fiber cleaver is configured to enable a counting operation of the count indication mechanism only when the fiber holder is set in the holder guide portion such that the pawl member is pressed.Type: ApplicationFiled: August 3, 2012Publication date: June 5, 2014Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SEI OPTIFRONTIER CO., LTD.Inventors: Masahiro Hasegawa, Tsuyoshi Tada, Toshihiko Homma
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Patent number: 8698435Abstract: A motor drive device includes an inverter circuit, a driver circuit for outputting a PWM signal to the inverter circuit, a booster circuit for boosting a power supply voltage supplied from a power supply circuit, a fail safe circuit arranged between the inverter circuit and the motor, and a fail safe drive unit for outputting a signal for turning ON/OFF a semiconductor switching element of the fail safe circuit. A boost voltage output from the booster circuit is supplied to the driver circuit and also supplied to the fail safe drive unit. The fail safe drive unit drives the semiconductor switching element of the fail safe circuit by such boost voltage.Type: GrantFiled: May 19, 2011Date of Patent: April 15, 2014Assignee: Omron Automotive Electronics Co., Ltd.Inventor: Tsuyoshi Tada
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Publication number: 20130255084Abstract: The optical fiber cutter 1 comprises a cutter base 3 and a cutter lid 4 attached openably and closably to the cutter base 3. A slider 8 having a blade member for incising an optical fiber is attached to the cutter base 3 so as to be movable widthwise. A switching plate 15 is attached to a rear end part of the cutter base 3, while a switcher 16 is provided on the outer surface side of the switching plate 15. When the switcher 16 is at a first position, the cutter lid 4 engages a stopper, thereby attaining an opening angle of 35°. When the switcher 16 is at a second position, the engagement between the cutter lid 4 and the stopper is released, whereby the cutter lid 4 attains an opening angle of 70°.Type: ApplicationFiled: August 3, 2012Publication date: October 3, 2013Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SEI OPTIFRONTIER CO., LTD.Inventors: Masahiro Hasegawa, Tsuyoshi Tada, Toshihiko Homma
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Publication number: 20120109562Abstract: A rotational angle detection device has a resolver in which an excitation coil, a first output coil and a second output coil are provided on a periphery of a rotor coupled to a rotation shaft, an excitation signal generator circuit that generates an excitation signal and sends the excitation signal to the excitation coil, and a rotational angle calculation unit that performs sampling for respective output signals of the first output coil and the second output coil in a predetermined cycle, and calculates a rotational angle of the rotation shaft based on two sampling signals obtained as a result of the sampling. The excitation signal generator circuit is of a single excitation mode and generates a single excitation signal.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.Inventors: Michisada Yabuguchi, Tsuyoshi Tada
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Publication number: 20110285335Abstract: A motor drive device includes an inverter circuit, a driver circuit for outputting a PWM signal to the inverter circuit, a booster circuit for boosting a power supply voltage supplied from a power supply circuit, a fail safe circuit arranged between the inverter circuit and the motor, and a fail safe drive unit for outputting a signal for turning ON/OFF a semiconductor switching element of the fail safe circuit. A boost voltage output from the booster circuit is supplied to the driver circuit and also supplied to the fail safe drive unit. The fail safe drive unit drives the semiconductor switching element of the fail safe circuit by such boost voltage.Type: ApplicationFiled: May 19, 2011Publication date: November 24, 2011Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.Inventor: Tsuyoshi Tada
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Publication number: 20110273122Abstract: A motor drive device has an inverter circuit, in which at least three sets of a pair of upper and lower arms including a semiconductor switching element on an upper arm and a lower arm is arranged, for supplying voltage to a motor based on ON/OFF operation of each semiconductor switching element by a PWM (Pulse Width Modulation) signal, an inverter drive unit for outputting the PWM signal to each semiconductor switching element of the inverter circuit, a fail safe circuit, arranged between the inverter circuit and the motor, including a semiconductor switching element for shielding the voltage supply from the inverter circuit to the motor for each phase, and a fail safe drive unit for outputting a signal for turning ON/OFF the semiconductor switching element of the fail safe circuit.Type: ApplicationFiled: May 6, 2011Publication date: November 10, 2011Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.Inventors: Hiromi Murata, Tsuyoshi Tada, Masamitsu Hamasaki, Taiki Yamane
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Patent number: 7618614Abstract: A method and compound for treatment of hydrocephalus is presented. Hepatocyte growth factor (HGF) is administered intraventricularly.Type: GrantFiled: November 19, 2004Date of Patent: November 17, 2009Assignee: Shinshu TLO Co., Ltd.Inventors: Tsuyoshi Tada, Toshikazu Nakamura
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Publication number: 20080194473Abstract: A method and compound for treatment of hydrocephalus is presented. Hepatocyte growth factor (HGF) is administered intraventricularly.Type: ApplicationFiled: November 19, 2004Publication date: August 14, 2008Applicant: Shinshu TLO Co., LtdInventors: Tsuyoshi Tada, Toshikazu Nakamura
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Patent number: D966814Type: GrantFiled: December 17, 2020Date of Patent: October 18, 2022Inventor: Tsuyoshi Tada
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Patent number: D974098Type: GrantFiled: December 17, 2020Date of Patent: January 3, 2023Inventor: Tsuyoshi Tada