Patents by Inventor Toshiyuki Uchida
Toshiyuki Uchida 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).
-
Publication number: 20230314521Abstract: A battery voltage monitoring device includes a clock generation circuit; a switch circuit including first and second N-type transistors and first and second P-type transistors of which sources and back gates are connected to each other, with a drain of one of the first N-type transistor and the first P-type transistor connected to the other source, one source connected to a signal input unit, and the other drain connected to a signal output unit, and a source of one of the second N-type transistor and the second P-type transistor connected to the other source, one source connected to a signal input unit, and the other drain connected to a signal output unit; a first generation circuit generating first and second control signals for the first and second P-type transistors, respectively; and a second generation circuit generating third and fourth control signals for the first and second N-type transistors, respectively.Type: ApplicationFiled: March 15, 2023Publication date: October 5, 2023Applicants: ABLIC Inc., Tianjin Lishen Battery Co., Ltd.Inventors: Eiki IMAIZUMI, Toshiyuki UCHIDA, Biao SHEN, Kazuhisa SUZUKI
-
Patent number: 11400817Abstract: A controller of an embodiment includes a limiter receiving an active current command initial value, limiting a maximum value of the active current command initial value with a predetermined value, and outputting a first value; a circuit to calculate a reactive current command initial value; a calculator to calculate a reactive current command adjustment value; a unit receiving the first value as an input, and calculating a reactive current upper limit value such that a composite value of the first value and the reactive current upper limit value is equal to or smaller than an input current maximum value; and a limiter to output the reactive current command adjustment value or the reactive current upper limit value, whichever is smaller. The predetermined value is a value to set the reactive current upper limit value to a value larger than zero and smaller than the input current maximum value.Type: GrantFiled: January 27, 2020Date of Patent: August 2, 2022Assignees: Central Japan Railway Company, Toshiba Infrastructure Systems & Solutions CorporationInventors: Ken Kunomura, Toshimasa Shimizu, Kenji Sato, Hirokazu Kato, Kazuaki Yuuki, Toshiyuki Uchida, Masatsugu Morita, Hiroki Miyajima, Yukitaka Monden
-
Publication number: 20200238835Abstract: A controller of an embodiment includes a limiter receiving an active current command initial value, limiting a maximum value of the active current command initial value with a predetermined value, and outputting a first value; a circuit to calculate a reactive current command initial value; a calculator to calculate a reactive current command adjustment value; a unit receiving the first value as an input, and calculating a reactive current upper limit value such that a composite value of the first value and the reactive current upper limit value is equal to or smaller than an input current maximum value; and a limiter to output the reactive current command adjustment value or the reactive current upper limit value, whichever is smaller. The predetermined value is a value to set the reactive current upper limit value to a value larger than zero and smaller than the input current maximum value.Type: ApplicationFiled: January 27, 2020Publication date: July 30, 2020Applicants: Central Japan Railway Company, Toshiba Infrastructure Systems & Solutions CorporationInventors: Ken KUNOMURA, Toshimasa SHIMIZU, Kenji SATO, Hirokazu KATO, Kazuaki YUUKI, Toshiyuki UCHIDA, Masatsugu MORITA, Hiroki MIYAJIMA, Yukitaka MONDEN
-
Patent number: 10666130Abstract: According to one embodiment, an electric power conversion system includes a convertor, a detector, a delay controller, and a determinator. The detector is configured to detect information related to a voltage of electric power converted by the converter. The delay controller is configured to delay a conversion operation start of the converter by a first predetermined time with respect to a supply start time at which supply of the electric power is started. The determinator is configured to perform a first determination on the basis of a detection result detected by the detector before elapse of the first predetermined time from the supply start tune, and to perform a second determination on the basis of a detection result detected by the detector after the elapse of the first predetermined time from the supply start time.Type: GrantFiled: September 11, 2018Date of Patent: May 26, 2020Assignees: CENTRAL JAPAN RAILWAY COMPANY, Toshiba Infrastructure Systems & Solutions CorporationInventors: Kenji Sato, Hirokazu Kato, Takafumi Fukushima, Hiroaki Otani, Tomoyuki Makino, Toshiyuki Uchida, Manato Mori
-
Publication number: 20190081552Abstract: According to one embodiment, an electric power conversion system includes a convertor, a detector, a delay controller, and a deteminator. The detector is configured to detect information related to a voltage of electric power converted by the converter. The delay controller is configured to delay a conversion operation start of the converter by a first predetermined time with respect to a supply start time at which supply of the electric power is started. The determinator is configured to perform a first determination on the basis of a detection result detected by the detector before elapse of the first predetermined time from the supply start tune, and to perform a second determination on the basis of a detection result detected by the detector after the elapse of the first predetermined time from the supply start time.Type: ApplicationFiled: September 11, 2018Publication date: March 14, 2019Applicants: CENTRAL JAPAN RAILWAY COMPANY, Toshiba Infrastructure Systems & Solutions CorporationInventors: Kenji SATO, Hirokazu KATO, Takafumi FUKUSHIMA, Hiroaki OTANI, Tomoyuki MAKINO, Toshiyuki UCHIDA, Manato MORI
-
Patent number: 10204613Abstract: A device includes a sound source, an electric board, an exterior member, an electric board container box, and a sound absorber. The sound source generates a sound at a time of operation. The electric board has a circuit mounting an electrical component. The exterior member surrounds the sound source and the electric board. The electric board container box houses the electric board. The sound absorber is at least partially disposed inside a virtual space corresponding to a thickness of the electric board container box in an interior space of the device.Type: GrantFiled: August 2, 2017Date of Patent: February 12, 2019Assignee: Ricoh Company, Ltd.Inventors: Masahiro Ishida, Naoki Matsuda, Toshiyuki Uchida, Kazuhiro Kobayashi, Toshihiro Shimada
-
Patent number: 10005362Abstract: An electric vehicle control device includes: a plurality of motors capable of transmitting motive power to a wheel of an electric vehicle; an inverter that supplies electric power to drive the motors; and a controller that controls the inverter and compares, when the electric vehicle drives under a certain velocity condition, a q-axis voltage feedforward value VqFF and a q-axis voltage command value Vq* used for controlling driving of the motors, to detect an occurrence of miswire between the motors and the inverter when the following inequation is satisfied: VqFF?1.5·Vq*.Type: GrantFiled: December 15, 2014Date of Patent: June 26, 2018Assignees: Central Japan Railway Company, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATIONInventors: Hirokazu Kato, Hiroki Shimoyama, Kei Sakanoue, Toshiyuki Uchida, Tomoyuki Makino, Hiroaki Otani, Manato Mori
-
Publication number: 20170330546Abstract: A device includes a sound source, an electric board, an exterior member, an electric board container box, and a sound absorber. The sound source generates a sound at a time of operation. The electric board has a circuit mounting an electrical component. The exterior member surrounds the sound source and the electric board. The electric board container box houses the electric board. The sound absorber is at least partially disposed inside a virtual space corresponding to a thickness of the electric board container box in an interior space of the device.Type: ApplicationFiled: August 2, 2017Publication date: November 16, 2017Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki Matsuda, Toshiyuki Uchida, Kazuhiro Kobayashi, Toshihiro Shimada
-
Patent number: 9767783Abstract: A device includes a sound source, an electric board, an exterior member, an electric board container box, and a sound absorber. The sound source generates a sound at a time of operation. The electric board has a circuit mounting an electrical component. The exterior member surrounds the sound source and the electric board. The electric board container box houses the electric board. The sound absorber is at least partially disposed inside a virtual space corresponding to a thickness of the electric board container box in an interior space of the device.Type: GrantFiled: January 29, 2016Date of Patent: September 19, 2017Assignee: RICOH COMPANY, LTD.Inventors: Masahiro Ishida, Naoki Matsuda, Toshiyuki Uchida, Kazuhiro Kobayashi, Toshihiro Shimada
-
Publication number: 20170164519Abstract: A power conversion device according to an embodiment includes a converter unit, and an inverter unit disposed to be adjacent to the converter unit in a railroad car running direction, the inverter unit being configured to convert the DC power outputted from the converter unit to AC power. First radiation fins are attached to a surface of a first heat receiving plate opposite to a surface on which the semiconductor switching devices are attached, and second radiation fins are attached to a surface of a second heat receiving plate opposite to a surface on which the semiconductor switching devices are attached. The first radiation fins and the second radiation fins facing one another are attached to the first heat receiving plate and the second heat receiving plate so that recessed portions of the first radiation fins and recessed portions the second radiation fins are aligned with one another.Type: ApplicationFiled: December 19, 2016Publication date: June 8, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshiyuki UCHIDA, Tomoyuki MAKINO
-
Publication number: 20160339783Abstract: An electric vehicle control device includes: a plurality of motors capable of transmitting motive power to a wheel of an electric vehicle; an inverter that supplies electric power to drive the motors; and a controller that controls the inverter and compares, when the electric vehicle drives under a certain velocity condition, a q-axis voltage feedforward value VqFF and a q-axis voltage command value Vq* used for controlling driving of the motors, to detect an occurrence of miswire between the motors and the inverter when the following inequation is satisfied: VqFF?1.5·Vq*.Type: ApplicationFiled: December 15, 2014Publication date: November 24, 2016Applicants: Central Japan Railway Company, Kabushiki Kaisha ToshibaInventors: Hirokazu KATO, Hiroki SHIMOYAMA, Kei SAKANOUE, Toshiyuki UCHIDA, Tomoyuki MAKINO, Hiroaki OTANI, Manato MORI
-
Patent number: 9471021Abstract: An image forming apparatus includes a multi-color misalignment calculator that calculates an amount of multi-color misalignment of multiple color misalignment detection test pattern images based on position readings outputted by multiple test pattern image detectors, an image formation condition adjusting unit that adjusts an image formation condition of the image forming apparatus in accordance with the amount of multi-color misalignment of the multiple color misalignment detection test pattern images calculated by the multi-color misalignment calculator, and a process control unit that initiates a first multi-color misalignment correction control mode including a skew misalignment correction process and a second multi-color misalignment correction control mode excluding the skew misalignment correction process to correct multi-color misalignment of the multiple color misalignment detection test pattern images.Type: GrantFiled: June 5, 2015Date of Patent: October 18, 2016Assignee: Ricoh Company, Ltd.Inventors: Akihiko Tosaka, Toshiyuki Uchida, Kazuhiro Kobayashi, Hiroaki Murakami
-
Publication number: 20160225363Abstract: A device includes a sound source, an electric board, an exterior member, an electric board container box, and a sound absorber. The sound source generates a sound at a time of operation. The electric board has a circuit mounting an electrical component. The exterior member surrounds the sound source and the electric board. The electric board container box houses the electric board. The sound absorber is at least partially disposed inside a virtual space corresponding to a thickness of the electric board container box in an interior space of the device.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Toshiyuki UCHIDA, Kazuhiro KOBAYASHI, Toshihiro SHIMADA
-
Patent number: 9389561Abstract: An image forming apparatus includes a plurality of latent image bearers, a latent image writer, a plurality of developing units, a primary transfer unit, a secondary transfer unit, an adjuster, a pattern image formation controller, a color deviation detector, a color deviation correction controller, and an image-formation-mode setting unit. The color deviation correction controller executes color deviation correction control in the separated state. The image-formation-mode setting unit sets a normal linear-velocity image formation mode in which an image is formed at a normal linear velocity and at least one non-normal linear-velocity image formation mode including a low linear-velocity image formation mode in which an image is formed at a low linear velocity slower than the normal linear velocity.Type: GrantFiled: September 28, 2015Date of Patent: July 12, 2016Assignee: Ricoh Company, Ltd.Inventors: Kazuhiro Kobayashi, Toshiyuki Uchida, Kaoru Yoshino, Toshihiro Shimada
-
Publication number: 20160098005Abstract: An image forming apparatus includes a plurality of latent image bearers, a latent image writer, a plurality of developing units, a primary transfer unit, a secondary transfer unit, an adjuster, a pattern image formation controller, a color deviation detector, a color deviation correction controller, and an image-formation-mode setting unit. The latent image writer writes latent images to the latent image bearers. The plurality of developing units develops the latent images of the latent image bearers and form toner images of different colors. The primary transfer unit transfers the toner images on the latent image bearers to an intermediate transferer. The secondary transfer unit transfers the toner images from the intermediate transferer to a sheet. The adjuster causes the intermediate transferer and the secondary transfer unit to be in a contact state or a separated state.Type: ApplicationFiled: September 28, 2015Publication date: April 7, 2016Inventors: Kazuhiro KOBAYASHI, Toshiyuki Uchida, Kaoru Yoshino, Toshihiro Shimada
-
Publication number: 20150362881Abstract: An image forming apparatus includes a multi-color misalignment calculator that calculates an amount of multi-color misalignment of multiple color misalignment detection test pattern images based on position readings outputted by multiple test pattern image detectors, an image formation condition adjusting unit that adjusts an image formation condition of the image forming apparatus in accordance with the amount of multi-color misalignment of the multiple color misalignment detection test pattern images calculated by the multi-color misalignment calculator, and a process control unit that initiates a first multi-color misalignment correction control mode including a skew misalignment correction process and a second multi-color misalignment correction control mode excluding the skew misalignment correction process to correct multi-color misalignment of the multiple color misalignment detection test pattern images.Type: ApplicationFiled: June 5, 2015Publication date: December 17, 2015Inventors: Akihiko TOSAKA, Toshiyuki UCHIDA, Kazuhiro KOBAYASHI, Hiroaki MURAKAMI
-
Patent number: 9116487Abstract: An image forming apparatus includes an image bearing member, a plurality of developing devices, a transfer device, a moving device, a color drift detector, a test pattern forming device, and a color drift correction device. The test pattern forming device forms a test pattern on the image bearing member. The color drift correction device corrects the color drift in a separating state in which the image bearing member and the transfer device are separated from each other. The test pattern forming device forms the test pattern again in an area on the image bearing member contacting the transfer device but not pressed by the transfer device after the color drift correction device corrects the color drift in the separating state, and the color drift correction device corrects the color drift in the contact state in which the image bearing member and the transfer device are in contact with each other.Type: GrantFiled: November 14, 2014Date of Patent: August 25, 2015Assignee: Ricoh Company, Ltd.Inventors: Akihiko Tosaka, Toshiyuki Uchida, Kazuhiro Kobayashi, Hiroaki Murakami
-
Publication number: 20150147099Abstract: An image forming apparatus includes an image bearing member, a plurality of developing devices, a transfer device, a moving device, a color drift detector, a test pattern forming device, and a color drift correction device. The test pattern forming device forms a test pattern on the image bearing member. The color drift correction device corrects the color drift in a separating state in which the image bearing member and the transfer device are separated from each other. The test pattern forming device forms the test pattern again in an area on the image bearing member contacting the transfer device but not pressed by the transfer device after the color drift correction device corrects the color drift in the separating state, and the color drift correction device corrects the color drift in the contact state in which the image bearing member and the transfer device are in contact with each other.Type: ApplicationFiled: November 14, 2014Publication date: May 28, 2015Inventors: Akihiko TOSAKA, Toshiyuki Uchida, Kazuhiro Kobayashi, Hiroaki Murakami
-
Patent number: 8903278Abstract: A drive unit for rotating a first rotary member and a second rotary member disposed around the first rotary member includes a drive source, an output gear driven by the drive source, a first gear greater in diameter than the output gear and configured to engage the output gear, a first joint member projecting from the first gear coaxially and coupled to the first rotary member, a second gear smaller in diameter than the first gear and connected between the first gear and the first joint member, a driven gear smaller in diameter than the first gear and disposed within an area of the first gear in a radial direction thereof to engage the second gear to be driven thereby, and a second joint member projecting from the driven gear coaxially and connected to the second rotary member.Type: GrantFiled: October 18, 2012Date of Patent: December 2, 2014Assignee: Ricoh Company, Ltd.Inventors: Hiroaki Murakami, Toshiyuki Uchida, Kazuhiro Kobayashi, Akihiko Tosaka
-
Patent number: 8772697Abstract: Provided is a photodetector device for detecting light intensity based on a detection signal of a difference circuit, the photodetector device including: a first light receiving element which generates an electric charge based on incident light; a second light receiving element, which includes a light blocking part for blocking incident light and generates an electric charge being a reference; and a storage detection circuit for detecting that an output voltage of the first light receiving element or the second light receiving element has reached a predetermined potential and outputting the detection signal when the difference does not reach a predetermined value even though sufficient incident light is provided.Type: GrantFiled: July 19, 2012Date of Patent: July 8, 2014Assignee: Seiko Instruments Inc.Inventors: Satoshi Machida, Toshiyuki Uchida, Yuji Wakabayashi