Patents by Inventor Ryotaro Okamoto
Ryotaro Okamoto 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: 11323009Abstract: A rotating electric machine unit includes a rotating electric machine, a high heat generation circuit and a low heat generation circuit both of which are electrically connected with the rotating electric machine, a first cooler, a first-coolant supplier, a second cooler and a second-coolant supplier. The first cooler is configured to cool both the high heat generation circuit and the low heat generation circuit with a first coolant. The first-coolant supplier is configured to supply the first coolant to the first cooler. The second cooler is configured to cool the rotating electric machine with a second coolant. The second-coolant supplier is configured to supply the second coolant to the second cooler. The second-coolant supplier is formed integrally with a low heat generation circuit-cooling part of the first cooler. The second-coolant supplier includes a heat exchanger via which heat is exchanged between the first coolant and the second coolant.Type: GrantFiled: March 29, 2019Date of Patent: May 3, 2022Assignee: DENSO CORPORATIONInventors: Ryotaro Okamoto, Hirofumi Kinjo, Makoto Taniguchi
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Patent number: 11190075Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.Type: GrantFiled: September 30, 2019Date of Patent: November 30, 2021Assignee: DENSO CORPORATIONInventors: Ryotaro Okamoto, Tsubasa Sakuishi
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Publication number: 20200106320Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.Type: ApplicationFiled: September 30, 2019Publication date: April 2, 2020Applicant: DENSO CORPORATIONInventors: Ryotaro OKAMOTO, Tsubasa SAKUISHI
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Patent number: 10493362Abstract: A game device includes a memory that stores a predetermined value and a processor that subtracts a value corresponding to a game action in a game from the predetermined value while the game action is executed and outputs the subtracted predetermined value to the memory. The processor also increases, as time passes, the predetermined value of which an upper limit is an upper limit value and outputs the increased predetermined value to the memory. When the processor detects payment of a fee or use of a game item obtained by the payment, the processor adds a first value to the predetermined value that exceeds the restoration upper limit value and outputs, to the memory, the predetermined value to which the first value is added. The first value is greater than a second value that is added to the predetermined value being under the upper limit value.Type: GrantFiled: August 4, 2017Date of Patent: December 3, 2019Assignee: Kabushiki Kaisha Sega GamesInventors: Tomio Kikuchi, Daisuke Kubota, Ryotaro Okamoto
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Publication number: 20190312487Abstract: A rotating electric machine unit includes a rotating electric machine, a high heat generation circuit and a low heat generation circuit both of which are electrically connected with the rotating electric machine, a first cooler, a first-coolant supplier, a second cooler and a second-coolant supplier. The first cooler is configured to cool both the high heat generation circuit and the low heat generation circuit with a first coolant. The first-coolant supplier is configured to supply the first coolant to the first cooler. The second cooler is configured to cool the rotating electric machine with a second coolant. The second-coolant supplier is configured to supply the second coolant to the second cooler. The second-coolant supplier is formed integrally with a low heat generation circuit-cooling part of the first cooler. The second-coolant supplier includes a heat exchanger via which heat is exchanged between the first coolant and the second coolant.Type: ApplicationFiled: March 29, 2019Publication date: October 10, 2019Applicant: DENSO CORPORATIONInventors: Ryotaro OKAMOTO, Hirofumi KINJO, Makoto TANIGUCHI
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Patent number: 10365175Abstract: A surface pressure measuring device includes an abutting plate, a lift, a probe, a piezo actuator and a controller. A pinhole is formed in the abutting plate at an abutting surface that abuts a target. The lift causes the target to abut the abutting surface such that the target is compressed to a predetermined thickness. The probe is inserted through the pinhole to be movable in an axial direction of the pinhole. The piezo actuator holds a state in which a tip surface is flush with the abutting surface as the probe resists a repulsive force received from the target while the lift causes the target to abut the abutting surface. The controller calculates a local surface pressure of the target from a load applied to the probe and an area of the tip surface of the probe.Type: GrantFiled: July 31, 2017Date of Patent: July 30, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Hosoi, Ryotaro Okamoto, Takahiro Fukuda, Shinichi Miura
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Patent number: 10288503Abstract: A surface pressure measuring device includes an abutting plate, a lift, a probe, a piezo actuator and a controller. A pinhole is formed in the abutting plate at an abutting surface that abuts a target. The lift causes the target to abut the abutting surface such that the target is compressed to a predetermined thickness. The probe is inserted through the pinhole to be movable in an axial direction of the pinhole. The piezo actuator holds a state in which a tip surface is flush with the abutting surface as the probe resists a repulsive force received from the target while the lift causes the target to abut the abutting surface. The controller calculates a local surface pressure of the target from a load applied to the probe and an area of the tip surface of the probe.Type: GrantFiled: July 31, 2017Date of Patent: May 14, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Hosoi, Ryotaro Okamoto, Takahiro Fukuda, Shinichi Miura
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Publication number: 20180038749Abstract: A surface pressure measuring device includes an abutting plate, a lift, a probe, a piezo actuator and a controller. A pinhole is formed in the abutting plate at an abutting surface that abuts a target. The lift causes the target to abut the abutting surface such that the target is compressed to a predetermined thickness. The probe is inserted through the pinhole to be movable in an axial direction of the pinhole. The piezo actuator holds a state in which a tip surface is flush with the abutting surface as the probe resists a repulsive force received from the target while the lift causes the target to abut the abutting surface. The controller calculates a local surface pressure of the target from a load applied to the probe and an area of the tip surface of the probe.Type: ApplicationFiled: July 31, 2017Publication date: February 8, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu HOSOI, Ryotaro OKAMOTO, Takahiro FUKUDA, Shinichi MIURA
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Publication number: 20170326452Abstract: A game device includes a memory that stores a predetermined value and a processor that subtracts a value corresponding to a game action in a game from the predetermined value while the game action is executed and outputs the subtracted predetermined value to the memory. The processor also increases, as time passes, the predetermined value of which an upper limit is an upper limit value and outputs the increased predetermined value to the memory. When the processor detects payment of a fee or use of a game item obtained by the payment, the processor adds a first value to the predetermined value that exceeds the restoration upper limit value and outputs, to the memory, the predetermined value to which the first value is added. The first value is greater than a second value that is added to the predetermined value being under the upper limit value.Type: ApplicationFiled: August 4, 2017Publication date: November 16, 2017Applicant: KABUSHIKI KAISHA SEGA Games doing business as SEGA Games Co., Ltd.Inventors: Tomio Kikuchi, Daisuke Kubota, Ryotaro Okamoto
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Patent number: 8138640Abstract: Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends.Type: GrantFiled: August 12, 2009Date of Patent: March 20, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.Inventors: Hiroaki Urano, Eiji Yamada, Kazutaka Tatematsu, Yasuji Taketsuna, Atomi Arakawa, Akihiro Tanaka, Sadahisa Onimaru, Hirohito Matsui, Ryotaro Okamoto
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Publication number: 20100038981Abstract: Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends.Type: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Applicants: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.Inventors: Hiroaki Urano, Eiji Yamada, Kazutaka Tatematsu, Yasuji Taketsuna, Atomi Arakawa, Akihiro Tanaka, Sadahisa Onimaru, Hirohito Matsui, Ryotaro Okamoto