Patents by Inventor Takahisa Toda
Takahisa Toda 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: 10161771Abstract: A measurement device includes: a casing that includes a first air duct with an air inlet; a straightening grid; a first chamber; an opening plate including an opening; a second chamber; pressure sensors configured to measure a first pressure, a second pressure, and a third pressure, the first pressure being air pressure from the air inlet to the straightening grid, the second pressure being air pressure in the first chamber, the third pressure being air pressure in the second chamber; a specific opening configured to allow the opening plate to be replaceable; an open/close portion configured to open and close the specific opening; and a duct forming a second air duct between the measurement device and a measurement target.Type: GrantFiled: September 7, 2016Date of Patent: December 25, 2018Assignee: SANYO DENKI CO., LTD.Inventors: Masahiro Koike, Tomoaki Ikeda, Takahisa Toda, Yo Muramatsu, Katsumichi Ishihara, Hikaru Urushimoto
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Patent number: 10036660Abstract: A measurement device for measuring an airflow volume of a wind-blowing apparatus includes, a housing that includes an air duct with an air inlet and an air outlet, the air inlet being configured to take in air, the air outlet being configured to send out the taken air, an opening member installed inside the air duct, the opening member including an opening allowing the air taken from the air inlet to pass therethrough, pressure sensors configured to measure air pressures before and after the air passes through the opening member in the air duct, and an orifice provided on the opening member to change a size of the opening.Type: GrantFiled: August 15, 2016Date of Patent: July 31, 2018Assignee: SANYO DENKI CO., LTD.Inventors: Katsumichi Ishihara, Takahisa Toda, Yo Muramatsu, Masahiro Koike, Hikaru Urushimoto
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Patent number: 9874215Abstract: A fan motor control unit includes sensor units that each detect a rotational position of the fan motor, a switching unit that selectively connects each of stator coils of the fan motor to a rectifier circuit, a current sensor that detects a current flowing in the fan motor, and a switching control unit that advances, in the case where the current detected by the current sensor exceeds a threshold, a energization timing from the rectifier circuit to the stator coils with respect to the energization timing applied while the current detected by the current sensor is lower than the threshold, on the basis of the rotational position detected by the sensor units.Type: GrantFiled: June 11, 2014Date of Patent: January 23, 2018Assignee: Sanyo Denki Co., Ltd.Inventors: Yo Muramatsu, Takahisa Toda, Kenta Nishimaki
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Measurement device for measuring airflow volume and ventilation resistance of wind-blowing apparatus
Patent number: 9857209Abstract: A measurement device for measuring an airflow volume and a ventilation resistance of a wind-blowing apparatus includes: a housing that includes an air duct with an air inlet and an air outlet, the air inlet being configured to take in air, the air outlet being configured to send out the taken air; an opening member installed inside the air duct, the opening member including an opening allowing the air taken from the air inlet to pass therethrough; pressure sensors configured to measure air pressures before and after the air passes through the opening member in the air duct; and an opening member replacing mechanism that forms a part of the air duct, the opening member replacing mechanism being configured to allow the opening member to be replaceable.Type: GrantFiled: March 1, 2016Date of Patent: January 2, 2018Assignee: SANYO DENKI CO., LTD.Inventors: Katsumichi Ishihara, Takahisa Toda, Yo Muramatsu -
Patent number: 9705385Abstract: A product specification setting apparatus includes: an electronic tag for updatably storing specifications of a product; and a control computer for controlling the product according to the stored specifications. A fan motor includes: a motor driving unit for driving a motor for rotating a fan; an electronic tag for updatably storing specifications of the fan motor; and a control computer for controlling the motor driving unit according to the stored specifications.Type: GrantFiled: June 2, 2015Date of Patent: July 11, 2017Assignee: SANYO DENKI CO., LTD.Inventors: Tetsuya Yamazaki, Takahisa Toda
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Publication number: 20170067765Abstract: A measurement device includes: a casing that includes a first air duct with an air inlet; a straightening grid; a first chamber; an opening plate including an opening; a second chamber; pressure sensors configured to measure a first pressure, a second pressure, and a third pressure, the first pressure being air pressure from the air inlet to the straightening grid, the second pressure being air pressure in the first chamber, the third pressure being air pressure in the second chamber; a specific opening configured to allow the opening plate to be replaceable; an open/close portion configured to open and close the specific opening; and a duct forming a second air duct between the measurement device and a measurement target.Type: ApplicationFiled: September 7, 2016Publication date: March 9, 2017Inventors: Masahiro KOIKE, Tomoaki IKEDA, Takahisa TODA, Yo MURAMATSU, Katsumichi ISHIHARA, Hikaru URUSHIMOTO
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Publication number: 20170052045Abstract: A measurement device for measuring an airflow volume of a wind-blowing apparatus includes, a housing that includes an air duct with an air inlet and an air outlet, the air inlet being configured to take in air, the air outlet being configured to send out the taken air, an opening member installed inside the air duct, the opening member including an opening allowing the air taken from the air inlet to pass therethrough, pressure sensors configured to measure air pressures before and after the air passes through the opening member in the air duct, and an orifice provided on the opening member to change a size of the opening.Type: ApplicationFiled: August 15, 2016Publication date: February 23, 2017Inventors: Katsumichi ISHIHARA, Takahisa TODA, Yo MURAMATSU, Masahiro KOIKE, Hikaru URUSHIMOTO
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Publication number: 20160258791Abstract: A measurement device for measuring an airflow volume and a ventilation resistance of a wind-blowing apparatus includes: a housing that includes an air duct with an air inlet and an air outlet, the air inlet being configured to take in air, the air outlet being configured to send out the taken air; an opening member installed inside the air duct, the opening member including an opening allowing the air taken from the air inlet to pass therethrough; pressure sensors configured to measure air pressures before and after the air passes through the opening member in the air duct; and an opening member replacing mechanism that forms a part of the air duct, the opening member replacing mechanism being configured to allow the opening member to be replaceable.Type: ApplicationFiled: March 1, 2016Publication date: September 8, 2016Inventors: Katsumichi ISHIHARA, Takahisa TODA, Yo MURAMATSU
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Patent number: 9369069Abstract: A control device of a fan motor includes: a voltage sensor that detects a voltage applied to a fan motor; a switching portion that selectively connects to each of coils of the fan motor and a rectifier circuit; and a switching control portion that reduces a duty ratio of a driving pulse applied to the switching portion if the voltage detected by the voltage sensor exceeds a threshold.Type: GrantFiled: September 18, 2014Date of Patent: June 14, 2016Assignee: Sanyo Denki Co., Ltd.Inventors: Takahisa Toda, Takashi Kaise, Jiro Watanabe
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Patent number: 9252700Abstract: A motor controller that controls energization of a motor in which a plurality of coils U1 to W2 that applies torque to a rotor is arranged in a circular pattern includes: a rotation speed detection sensor that detects a rotation speed of the motor; and an energization control unit that controls energization of the plurality of coils U1 to W2 using the detected rotation speed. The energization control unit sequentially energizes the plurality of coils U1 to W2 in all energization patterns if the detected rotation speed is outside of predetermined conditions and sequentially energizes the plurality of coils U1 to W2 in remaining energization patterns (for example, U?V phase, V?W phase, V?U phase, W?U phase, and W?V phase) excluding a partial energization pattern (for example, U?W phase) of all energization patterns if the detected rotation speed is within the predetermined conditions.Type: GrantFiled: June 21, 2013Date of Patent: February 2, 2016Assignee: SANYO DENKI CO., LTD.Inventor: Takahisa Toda
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Patent number: 9246422Abstract: A motor control device includes an energization pattern output portion and an inverter circuit. The energization pattern output portion cyclically outputs a plurality of energization patterns. The inverter circuit selectively connects respective coils provided in a motor to a rectifier circuit according to the output energization pattern. The energization pattern output portion delays the output timing of the energization pattern according to a rotation speed of the motor.Type: GrantFiled: August 28, 2013Date of Patent: January 26, 2016Assignee: SANYO DENKI CO., LTD.Inventors: Yo Muramatsu, Takahisa Toda
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Patent number: 9219435Abstract: A motor control device includes an energization pattern output portion and an inverter circuit. The energization pattern output portion cyclically outputs a plurality of energization patterns. The inverter circuit selectively connects respective coils provided in a motor to a rectifier circuit according to the output energization pattern. The energization pattern output portion delays the output timing of the energization pattern according to a rotation speed of the motor.Type: GrantFiled: August 28, 2013Date of Patent: December 22, 2015Assignee: SANYO DENKI CO., LTD.Inventors: Yo Muramatsu, Takahisa Toda
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Publication number: 20150357887Abstract: A product specification setting apparatus includes: an electronic tag for updatably storing specifications of a product; and a control computer for controlling the product according to the stored specifications. A fan motor includes: a motor driving unit for driving a motor for rotating a fan; an electronic tag for updatably storing specifications of the fan motor; and a control computer for controlling the motor driving unit according to the stored specifications.Type: ApplicationFiled: June 2, 2015Publication date: December 10, 2015Inventors: Tetsuya YAMAZAKI, Takahisa TODA
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Publication number: 20150084564Abstract: A control device of a fan motor includes: a voltage sensor that detects a voltage applied to a fan motor; a switching portion that selectively connects to each of coils of the fan motor and a rectifier circuit; and a switching control portion that reduces a duty ratio of a driving pulse applied to the switching portion if the voltage detected by the voltage sensor exceeds a threshold.Type: ApplicationFiled: September 18, 2014Publication date: March 26, 2015Inventors: Takahisa TODA, Takashi KAISE, Jiro WATANABE
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Publication number: 20140369813Abstract: A fan motor control unit includes sensor units that each detect a rotational position of the fan motor, a switching unit that selectively connects each of stator coils of the fan motor to a rectifier circuit, a current sensor that detects a current flowing in the fan motor, and a switching control unit that advances, in the case where the current detected by the current sensor exceeds a threshold, a energization timing from the rectifier circuit to the stator coils with respect to the energization timing applied while the current detected by the current sensor is lower than the threshold, on the basis of the rotational position detected by the sensor units.Type: ApplicationFiled: June 11, 2014Publication date: December 18, 2014Inventors: Yo Muramatsu, Takahisa Toda, Kenta Nishimaki
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Patent number: 8847525Abstract: To provide a motor control device which can apply an electric brake to a motor when power supply is stopped, and achieve a miniaturization and a cost reduction. A first switch 11 through a sixth switch 16 connects respective coils L1, L2 and L3 included in a motor to an electric power source 20. The capacitor C accumulates the power supplied from the electric power source 20. A seventh switch 17 connects the capacitor C to a fourth switch 14 through the sixth switch 16, when the power supply from the electric power source 20 is stopped. The operation of the seventh switch 17 causes the fourth switch 14 through the sixth switch 16 to operate by the power accumulated in the capacitor C, and respective coils L1 to L3 are short-circuited to apply the brake to the motor.Type: GrantFiled: January 23, 2013Date of Patent: September 30, 2014Assignee: Sanyo Denki Co., Ltd.Inventors: Noriaki Taniguchi, Takahisa Toda, Yo Muramatsu
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Publication number: 20140062360Abstract: A motor control device includes an energization pattern output portion and an inverter circuit. The energization pattern output portion cyclically outputs a plurality of energization patterns. The inverter circuit selectively connects respective coils provided in a motor to a rectifier circuit according to the output energization pattern. The energization pattern output portion delays the output timing of the energization pattern according to a rotation speed of the motor.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: SANYO DENKI CO., LTD.Inventors: Yo Muramatsu, Takahisa Toda
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Publication number: 20140001998Abstract: A motor controller that controls energization of a motor in which a plurality of coils U1 to W2 that applies torque to a rotor is arranged in a circular pattern includes: a rotation speed detection sensor that detects a rotation speed of the motor; and an energization control unit that controls energization of the plurality of coils U1 to W2 using the detected rotation speed. The energization control unit sequentially energizes the plurality of coils U1 to W2 in all energization patterns if the detected rotation speed is outside of predetermined conditions and sequentially energizes the plurality of coils U1 to W2 in remaining energization patterns (for example, U?V phase, V?W phase, V?U phase, W?U phase, and W?V phase) excluding a partial energization pattern (for example, U?W phase) of all energization patterns if the detected rotation speed is within the predetermined conditions.Type: ApplicationFiled: June 21, 2013Publication date: January 2, 2014Inventor: Takahisa TODA
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Patent number: 8164008Abstract: A cable is sandwiched between a first inner wall surface of a peripheral-wall-side pressing wall portion and a first inner wall surface of a cap-side pressing wall portion, between a second inner wall surface of the peripheral-wall-side pressing wall portion and a second wall surface of the cap-side pressing wall portion, and between a third inner wall surface of the peripheral-wall-side pressing wall portion and a third inner wall surface of the cap-side pressing wall portion to crank the cable to form a cranked portion of the cable. The peripheral-all-side pressing wall portion and the cap-side pressing wall portion sandwich the cranked portion therebetween. Thus, defective soldering may be prevented between a plurality of lead wires and a core-wire soldered portion to which core wires of the lead wires are soldered and connected.Type: GrantFiled: February 23, 2010Date of Patent: April 24, 2012Assignee: Sanyo Denki Co., Ltd.Inventors: Haruhisa Maruyama, Tomoaki Ikeda, Takahisa Toda
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Patent number: 7809750Abstract: A data management apparatus connected to a data storage apparatus via a network manages the data storage apparatus by transmitting a command of structured document format such as the extensible markup language format and receiving the information related to the executed command as response data of the structured document format. Since the information included in the command is expressed using the structured document format, the data storage apparatus can flexibly interpret the command by ignoring missing and excess information included in the command, and vice versa.Type: GrantFiled: May 23, 2003Date of Patent: October 5, 2010Assignee: Ricoh Company, Ltd.Inventor: Takahisa Toda