Patents by Inventor Yuji Kuwana
Yuji Kuwana 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: 11737727Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a body, a plurality of wheels, and control circuitry. The body sends and receives ultrasonic waves to generate an ultrasonic image. The plurality of wheels supports and moves the body. The assist wheel is electrically driven, and assists movement of the body. The control circuitry is configured to control switching between grounded and ungrounded of the assist wheel to a floor.Type: GrantFiled: October 6, 2020Date of Patent: August 29, 2023Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hideo Onodera, Shingo Toyoda, Shinichiro Kikuchi, Shuta Fujiwara, Yuji Kuwana
-
Patent number: 11399799Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes a plurality of probe ports and processing circuitry. An ultrasound probe including transmission circuitry to drive transducers that generate ultrasound is connectible to each of the plurality of probe ports. The processing circuitry generates a control signal for the transmission circuitry or a drive signal to drive the transmission circuitry, according to a position of one of the probe ports to which the ultrasound probe is connected.Type: GrantFiled: April 18, 2019Date of Patent: August 2, 2022Assignee: Canon Medical Systems CorporationInventors: Nobuyuki Iwama, Shuta Fujiwara, Isao Uchiumi, Hiroyuki Shibanuma, Wataru Kameishi, Yuji Kuwana
-
Publication number: 20220054107Abstract: In one embodiment, an ultrasonic diagnostic apparatus includes: a main body configured to generate an ultrasonic image; a body housing configured to house the main body; a display/operation panel configured to operate the main body and display the ultrasonic image; and a lifter on which the display/operation panel is placed, the lifter being attached to the body housing and configured to adjust height of the display/operation panel from a floor in each of an electric mode and a manual mode.Type: ApplicationFiled: August 13, 2021Publication date: February 24, 2022Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hideo ONODERA, Shingo TOYODA, Shinichiro KIKUCHI, Shuta FUJIWARA, Yuji KUWANA
-
Publication number: 20210100529Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a body, a plurality of wheels, and control circuitry. The body sends and receives ultrasonic waves to generate an ultrasonic image. The plurality of wheels supports and moves the body. The assist wheel is electrically driven, and assists movement of the body. The control circuitry is configured to control switching between grounded and ungrounded of the assist wheel to a floor.Type: ApplicationFiled: October 6, 2020Publication date: April 8, 2021Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hideo ONODERA, Shingo TOYODA, Shinichiro KIKUCHI, Shuta FUJIWARA, Yuji KUWANA
-
Publication number: 20200321869Abstract: In one embodiment, a DC/DC converter includes: a first switching element, a diode connected to the first switching element, an inductor connected to at least one of the first switching element and the diode, and a circuit connected in parallel to the first switching element, the circuit including a second switching element. A current flowing through the circuit when the second switching element is on is smaller than the current flowing through the first switching element when the first switching element is on, and the second switching element is turned on a lead time before the timing at which the first switching element is turned on.Type: ApplicationFiled: February 27, 2020Publication date: October 8, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yuji KUWANA, Shuta Fujiwara
-
Publication number: 20190321003Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes a plurality of probe ports and processing circuitry. An ultrasound probe including transmission circuitry to drive transducers that generate ultrasound is connectible to each of the plurality of probe ports. The processing circuitry generates a control signal for the transmission circuitry or a drive signal to drive the transmission circuitry, according to a position of one of the probe ports to which the ultrasound probe is connected.Type: ApplicationFiled: April 18, 2019Publication date: October 24, 2019Applicant: Canon Medical Systems CorporationInventors: Nobuyuki IWAMA, Shuta FUJIWARA, Isao UCHIUMI, Hiroyuki SHIBANUMA, Wataru KAMEISHI, Yuji KUWANA
-
Patent number: 9891575Abstract: An image forming device includes an attachment part to which a toner unit having a fuse that can be molten by being supplied with an electric current is detachably attached, and a control part that applies each of a non-melting conduction signal corresponding to a first current supply state where the fuse is not molten and a melting conduction signal corresponding to a second current supply state where the fuse is molten to the fuse. The control part detects each of whether or not the fuse is molten by applying the non-melting conduction signal and whether or not the fuse is molten by applying the melting conduction signal. The control part determines whether or not the toner unit attached to the attachment part is a specific exchange unit on the basis of a detection result of whether or not the fuse is molten.Type: GrantFiled: April 10, 2017Date of Patent: February 13, 2018Assignee: SOC CorporationInventors: Toshitaka Ogawa, Hiroo Arikawa, Yuji Kuwana
-
Publication number: 20170261911Abstract: An image forming device includes an attachment part to which a toner unit having a fuse that can be molten by being supplied with an electric current is detachably attached, and a control part that applies each of a non-melting conduction signal corresponding to a first current supply state where the fuse is not molten and a melting conduction signal corresponding to a second current supply state where the fuse is molten to the fuse. The control part detects each of whether or not the fuse is molten by applying the non-melting conduction signal and whether or not the fuse is molten by applying the melting conduction signal. The control part determines whether or not the toner unit attached to the attachment part is a specific exchange unit on the basis of a detection result of whether or not the fuse is molten.Type: ApplicationFiled: April 10, 2017Publication date: September 14, 2017Applicant: SOC CorporationInventors: Toshitaka OGAWA, Hiroo ARIKAWA, Yuji KUWANA
-
Patent number: 8531187Abstract: Provided is a correction circuit for generating an output signal emphasizing a predetermined signal component of a supplied input signal, including: a first detection section that detects a waveform of the input signal; an amplifying section that amplifies the waveform detected by the first detection section; a correction signal generating section that generates a correction signal by extracting an alternate current component from the waveform amplified by the amplifying section; and an output signal generating section that superimposes the correction signal on the waveform of the input signal, thereby generating the output signal.Type: GrantFiled: January 5, 2010Date of Patent: September 10, 2013Assignee: Advantest CorporationInventors: Yuji Kuwana, Naoki Matsumoto
-
Patent number: 8410817Abstract: A level switch circuit receives a digital input signal, and generates a level signal having a voltage level that corresponds to the value of the input signal thus received. A buffer circuit receives a level signal, and outputs the level signal via an output terminal thereof. A bias current generating circuit generates a bias current including a DC component having a constant level and a variable component that changes according to the input signal, and supplies the bias current thus generated to a buffer circuit. The bias current generating circuit detects an edge of the input signal, and raises the bias current by a predetermined amount for a predetermined period of time after the edge thus detected.Type: GrantFiled: August 17, 2010Date of Patent: April 2, 2013Assignee: Advantest CorporationInventors: Yuji Kuwana, Naoki Matsumoto, Yasuhiro Urabe
-
Patent number: 8368366Abstract: Provided is a driver circuit that outputs, from an output end, an output signal corresponding to an input signal supplied thereto, comprising an output resistance section that is provided between a constant voltage source and the output end; an output switching section that switches voltage of the output end according to the input signal; and a switching section that switches a resistance value of the output resistance section. The output resistance section includes an output resistance FET having a source/drain connection between the constant voltage source and the output end, and the switching section supplies a control voltage to a gate of the output resistance FET such that the resistance between the source and the drain of the output resistance FET switches to a designated value.Type: GrantFiled: September 3, 2009Date of Patent: February 5, 2013Assignee: Advantest CorporationInventors: Yuji Kuwana, Naoki Matsumoto, Yasuhiro Urabe
-
Patent number: 8013626Abstract: Provided is a test apparatus that tests a device under test, comprising a driver circuit that generates an output signal according to a prescribed input pattern and supplies the output signal to the device under test; and a measuring section that judges acceptability of the device under test by measuring a response signal output by the device under test. The driver circuit includes an input terminal that receives the input pattern; a switching section that operates according to a logic value of the input pattern to generate the output signal; and an emphasized component generating section that is provided between the input terminal and the switching section, and that (i) generates an emphasized component according to a prescribed high frequency component of the input pattern and (ii) superimposes the emphasized component onto a voltage supplied to the switching section.Type: GrantFiled: March 31, 2009Date of Patent: September 6, 2011Assignee: Advantest CorporationInventors: Yasuhiro Urabe, Naoki Matsumoto, Yuji Kuwana
-
Publication number: 20110050194Abstract: Provided is a driver circuit that outputs, from an output end, an output signal corresponding to an input signal supplied thereto, comprising an output resistance section that is provided between a constant voltage source and the output end; an output switching section that switches voltage of the output end according to the input signal; and a switching section that switches a resistance value of the output resistance section. The output resistance section includes an output resistance FET having a source/drain connection between the constant voltage source and the output end, and the switching section supplies a control voltage to a gate of the output resistance FET such that the resistance between the source and the drain of the output resistance FET switches to a designated value.Type: ApplicationFiled: September 3, 2009Publication date: March 3, 2011Applicant: ADVANTEST CORPORATIONInventors: Yuji KUWANA, Naoki MATSUMOTO, Yasuhiro URABE
-
Publication number: 20110043250Abstract: A level switch circuit receives a digital input signal, and generates a level signal having a voltage level that corresponds to the value of the input signal thus received. A buffer circuit receives a level signal, and outputs the level signal via an output terminal thereof. A bias current generating circuit generates a bias current including a DC component having a constant level and a variable component that changes according to the input signal, and supplies the bias current thus generated to a buffer circuit. The bias current generating circuit detects an edge of the input signal, and raises the bias current by a predetermined amount for a predetermined period of time after the edge thus detected.Type: ApplicationFiled: August 17, 2010Publication date: February 24, 2011Applicant: ADVANTEST CORPORATIONInventors: Yuji KUWANA, Naoki MATSUMOTO, Yasuhiro URABE
-
Publication number: 20100244880Abstract: Provided is a test apparatus that tests a device under test, comprising a driver circuit that generates an output signal according to a prescribed input pattern, and supplies the output signal to the device under test; and a measuring section that measures a response signal output by the device under test to judge the acceptability of the device under test, wherein the driver circuit includes an input gate drive section that selects one of a plurality of input drive voltages supplied thereto, according to a logic value of the input pattern, and outputs the selected input drive voltage; a voltage switching section that includes a transistor and that outputs the output signal according to the drain voltage of the transistor, the transistor having a gate terminal that receives the input drive voltage output by the input gate drive section and a source terminal to which is applied a prescribed reference voltage; and an input drive voltage supplying section that generates the input drive voltages according to theType: ApplicationFiled: March 27, 2009Publication date: September 30, 2010Applicant: ADVANTEST CORPORATIONInventors: Yasuhiro Urabe, Naoki Matsumoto, Yuji Kuwana
-
Publication number: 20100244884Abstract: Provided is a test apparatus that tests a device under test, comprising a driver circuit that generates an output signal according to a prescribed input pattern and supplies the output signal to the device under test; and a measuring section that judges acceptability of the device under test by measuring a response signal output by the device under test. The driver circuit includes an input terminal that receives the input pattern; a switching section that operates according to a logic value of the input pattern to generate the output signal; and an emphasized component generating section that is provided between the input terminal and the switching section, and that (i) generates an emphasized component according to a prescribed high frequency component of the input pattern and (ii) superimposes the emphasized component onto a voltage supplied to the switching section.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Applicant: ADVANTEST CORPORATIONInventors: YASUHIRO URABE, NAOKI MATSUMOTO, YUJI KUWANA
-
Patent number: 7795897Abstract: Provided is a test apparatus that tests a device under test, comprising a driver circuit that generates an output signal according to a prescribed input pattern, and supplies the output signal to the device under test; and a measuring section that measures a response signal output by the device under test to judge the acceptability of the device under test, wherein the driver circuit includes an input gate drive section that selects one of a plurality of input drive voltages supplied thereto, according to a logic value of the input pattern, and outputs the selected input drive voltage; a voltage switching section that includes a transistor and that outputs the output signal according to the drain voltage of the transistor, the transistor having a gate terminal that receives the input drive voltage output by the input gate drive section and a source terminal to which is applied a prescribed reference voltage; and an input drive voltage supplying section that generates the input drive voltages according to theType: GrantFiled: March 27, 2009Date of Patent: September 14, 2010Assignee: Advantest CorporationInventors: Yasuhiro Urabe, Naoki Matsumoto, Yuji Kuwana
-
Publication number: 20100190448Abstract: Provided is a correction circuit for generating an output signal emphasizing a predetermined signal component of a supplied input signal, including: a first detection section that detects a waveform of the input signal; an amplifying section that amplifies the waveform detected by the first detection section; a correction signal generating section that generates a correction signal by extracting an alternate current component from the waveform amplified by the amplifying section; and an output signal generating section that superimposes the correction signal on the waveform of the input signal, thereby generating the output signal.Type: ApplicationFiled: January 5, 2010Publication date: July 29, 2010Applicant: ADVANTEST CORPORATIONInventors: Yuji KUWANA, Naoki MATSUMOTO
-
Patent number: 7342407Abstract: A temperature compensation circuit for effectively compensating the difference of a switching timing due to temperature change of a switching element included in a logic circuit is provided. The temperature compensation circuit includes a temperature detecting section for detecting a value corresponding to the temperature of the switching element, and a correction section for correcting the voltage of a logic signal inputted from a previous circuit to the logic circuit in order to reduce the difference of the switching timing due to the temperature change of the switching element based on the value corresponding to the temperature.Type: GrantFiled: January 31, 2006Date of Patent: March 11, 2008Assignee: Advantest CorporationInventors: Yuji Kuwana, Yoshiharu Umemura, Takashi Sekino
-
Publication number: 20070176617Abstract: A temperature compensation circuit for effectively compensating the difference of a switching timing due to temperature change of a switching element included in a logic circuit is provided. The temperature compensation circuit includes a temperature detecting section for detecting a value corresponding to the temperature of the switching element, and a correction section for correcting the voltage of a logic signal inputted from a previous circuit to the logic circuit in order to reduce the difference of the switching timing due to the temperature change of the switching element based on the value corresponding to the temperature.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Applicant: Advantest CorporationInventors: Yuji Kuwana, Yoshiharu Umemura, Takashi Sekino