Patents by Inventor Takaharu Tani
Takaharu Tani 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: 20240147056Abstract: An imaging device includes a camera unit and a control unit. A first power source voltage is transferred from the camera unit to the control unit by a power source line and is input to the camera unit as a second power source voltage. The camera unit consumes the second power source voltage as a load current in a voltage-monitoring period. The control unit measures a value of the second power source voltage transferred from the camera unit by the video signal line in the voltage-monitoring period. The control unit adjusts a value of the first power source voltage in the video output period based on the measured value.Type: ApplicationFiled: January 9, 2024Publication date: May 2, 2024Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Susumu Yamazaki, Takaharu Tani
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Patent number: 11849230Abstract: A digital-to-analog converter comprising: a plurality of capacitances and a plurality of switches. A capacitance among the plurality of capacitances, of which the number corresponds to the resolution of the analog signal to be output, is used as a voltage value generation capacitance, so as to generate a voltage value based on the reference voltage to be added or subtracted, by switching a node to which the second terminal is connected by a corresponding switch. A remaining capacitance, which is not used as the voltage value generation capacitance among the plurality of capacitances, is used as a gain adjustment capacitance, so as to adjust gain of a voltage value based on the reference voltage to be added or subtracted, by holding a node to which the second terminal is connected by a corresponding switch.Type: GrantFiled: November 19, 2020Date of Patent: December 19, 2023Assignee: OLYMPUS CORPORATIONInventor: Takaharu Tani
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Publication number: 20230225600Abstract: An imaging device includes a camera unit and a control unit. The camera unit includes an image sensor. The control unit includes a voltage measurement circuit and a voltage adjustment circuit. A first power source voltage is transferred from the control unit to the camera unit by a power source line and is input to the camera unit as a second power source voltage. A video signal or the second power source voltage is output to a video signal line. The voltage measurement circuit is configured to measure a voltage value of the second power source voltage. The voltage adjustment circuit is configured to adjust a value of the first power source voltage based on the value of the second power source voltage.Type: ApplicationFiled: March 24, 2023Publication date: July 20, 2023Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Takaharu TANI, Keisuke OGAWA, Yasunari HARADA
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Publication number: 20210075987Abstract: A digital-to-analog converter comprising: a plurality of capacitances and a plurality of switches. A capacitance among the plurality of capacitances, of which the number corresponds to the resolution of the analog signal to be output, is used as a voltage value generation capacitance, so as to generate a voltage value based on the reference voltage to be added or subtracted, by switching a node to which the second terminal is connected by a corresponding switch. A remaining capacitance, which is not used as the voltage value generation capacitance among the plurality of capacitances, is used as a gain adjustment capacitance, so as to adjust gain of a voltage value based on the reference voltage to be added or subtracted, by holding a node to which the second terminal is connected by a corresponding switch.Type: ApplicationFiled: November 19, 2020Publication date: March 11, 2021Applicant: OLYMPUS CORPORATIONInventor: Takaharu Tani
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Patent number: 9093872Abstract: According to one embodiment, a seal oil feeding apparatus includes a hydrogen detraining tank, a float trap tank, and an air detraining tank. The hydrogen detraining tank is configured to collect and reserve seal oil that has flowed out to the inside of a housing from a sealing unit. The float trap tank is provided integrated with the hydrogen detraining tank in horizontally, and is connected to the hydrogen detraining tank, so that the liquid level of the seal oil becomes substantially the same as the height of the hydrogen detraining tank. The float trap tank includes a float valve. The air detraining tank is placed at a position lower than the hydrogen detraining tank and float trap tank, and reserves seal oil that has flowed out from the float valve.Type: GrantFiled: September 22, 2011Date of Patent: July 28, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Hideyasu Ajioka, Takaharu Tani, Naoshi Murakami, Shohei Soma, Toshihiro Mouri, Mitsuyoshi Kuramoto
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Publication number: 20120098206Abstract: According to one embodiment, a seal oil feeding apparatus includes a hydrogen detraining tank, a float trap tank, and an air detraining tank. The hydrogen detraining tank is configured to collect and reserve seal oil that has flowed out to the inside of a housing from a sealing unit. The float trap tank is provided integrated with the hydrogen detraining tank in horizontally, and is connected to the hydrogen detraining tank, so that the liquid level of the seal oil becomes substantially the same as the height of the hydrogen detraining tank. The float trap tank includes a float valve. The air detraining tank is placed at a position lower than the hydrogen detraining tank and float trap tank, and reserves seal oil that has flowed out from the float valve.Type: ApplicationFiled: September 22, 2011Publication date: April 26, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideyasu AJIOKA, Takaharu TANI, Naoshi MURAKAMI, Shohei SOMA, Toshihiro MOURI, Mitsuyoshi KURAMOTO
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Patent number: 7854167Abstract: A diagnosis device for diagnosing loosening of a stator core of a rotary electrical machine. The diagnosis device has: excitation means for vibrating the stator core in the radial direction; vibration detection means for detecting the vibration of the stator core in the radial direction; means for frequency-analyzing an output signal of the vibration detection means that detects vibration generated in the stator core when the stator core is vibrated by the excitation means so as to extract a measurement natural vibration mode of the stator core in a circular ring natural vibration mode; means for estimating a circular ring natural vibration mode of the stator core from shape data of the stator core; and means for determining a clamping state of the stator core by comparing the measurement natural vibration mode and a determination criterion obtained based on the estimated natural vibration mode.Type: GrantFiled: May 16, 2008Date of Patent: December 21, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Yutaka Hashiba, Norio Takahashi, Masayuki Ichimonji, Hitoshi Katayama, Takaharu Tani, Tatsuo Taniguchi, Masayuki Takahashi
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Patent number: 7812501Abstract: It is an object of this invention to provide a dynamo-electric machine rotor which effectively and uniformly cools a rotor coil outside a rotor core by forming a ventilating groove in the rotor coil, tolerates large field current, and has high reliability.Type: GrantFiled: April 27, 2007Date of Patent: October 12, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Taniyama, Yasuo Kabata, Hidekazu Shiomi, Kenmei Shimanuki, Takaharu Tani, Shozo Abe
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Publication number: 20080282803Abstract: A diagnosis device for diagnosing loosening of a stator core of a rotary electrical machine. The diagnosis device has: excitation means for vibrating the stator core in the radial direction; vibration detection means for detecting the vibration of the stator core in the radial direction; means for frequency-analyzing an output signal of the vibration detection means that detects vibration generated in the stator core when the stator core is vibrated by the excitation means so as to extract a measurement natural vibration mode of the stator core in a circular ring natural vibration mode; means for estimating a circular ring natural vibration mode of the stator core from shape data of the stator core; and means for determining a clamping state of the stator core by comparing the measurement natural vibration mode and a determination criterion obtained based on the estimated natural vibration mode.Type: ApplicationFiled: May 16, 2008Publication date: November 20, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Yutaka Hashiba, Norio Takahashi, Masayuki Ichimonji, Hitoshi Katayama, Takaharu Tani, Tatsuo Taniguchi, Masayuki Takahashi
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Publication number: 20070252473Abstract: It is an object of this invention to provide a dynamo-electric machine rotor which effectively and uniformly cools a rotor coil outside a rotor core by forming a ventilating groove in the rotor coil, tolerates large field current, and has high reliability.Type: ApplicationFiled: April 27, 2007Publication date: November 1, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshihiro Taniyama, Yasuo Kabata, Hidekazu Shiomi, Kenmei Shimanuki, Takaharu Tani, Shozo Abe