Patents by Inventor Akihiro Suda
Akihiro Suda 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: 11993205Abstract: A remote driving taxi system provides a mobility service using remote driving taxis that are driven by remote drivers. Each of the remote driving taxis includes a display lamp configured to indicate whether the remote driving taxi is currently available. Management information includes use states of the remote driving taxis and assignment states between the remote driving taxis and the remote drivers. The remote driving taxi system puts on the display lamp of the remote driving taxi to which the remote driver has already been assigned and that is currently available, based on the management information. Further, the remote driving taxi system puts off the display lamp of the remote driving taxi to which the remote driver has already been assigned and that is currently unavailable, based on the management information.Type: GrantFiled: June 8, 2022Date of Patent: May 28, 2024Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toru Nishitani, Rio Suda, Hiroshi Yonenaga, Hidekazu Sasaki, Tatsushi Takenaka, Shun Ota, Akihiro Kusumoto
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Publication number: 20240120783Abstract: A water-cooled motor includes: an annular stator having a central axis; and an annular housing surrounding the stator around the central axis and provided with a cooling channel within the housing, the housing includes: an annular non-magnetic metal pipe; and a casting member cast to envelop the metal pipe around the central axis, and the metal pipe is located inward of the cooling channel and located outward of an outer surface of the stator, in a radial direction of the stator.Type: ApplicationFiled: October 3, 2023Publication date: April 11, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Iori MATSUDA, Tomokazu SUDA, Yuta ABIKO, Akihiro MAKINO, Shotaro OKAMOTO, Daisuke MATSUDA
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Patent number: 7585163Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: GrantFiled: April 15, 2008Date of Patent: September 8, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Patent number: 7585162Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: GrantFiled: April 15, 2008Date of Patent: September 8, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Patent number: 7572116Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: GrantFiled: April 15, 2008Date of Patent: August 11, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Patent number: 7563085Abstract: A compressor includes two rotary compressing elements in a vessel. One of the compressing elements operates while the other element is in a non-operating mode. In the non-operating mode, inflow of refrigerant gas into the cylinder of the rotary compressing element is blocked and a suction side pressure of the rotary compressing element is applied as a back pressure to a vane. A compressing system includes the compressor and a controller and operates in first and second operation modes. In the first operation mode, refrigerant gas flows into a cylinder and an intermediate pressure, a result of flow of the refrigerant gas from between a vane and a guide groove into a back pressure portion, between a suction side pressure and a discharge side pressure, is applied as a back pressure to bias the vane against a roller.Type: GrantFiled: March 14, 2005Date of Patent: July 21, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Masazumi Sakaniwa, Akira Hashimoto, Masayuki Hara, Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda
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Patent number: 7540724Abstract: A compressor having a compression member whose upper surface crosses an axial direction of a rotary shaft and is inclined continuously between a top dead center and a bottom dead center and which is disposed in a cylinder to be rotated by a rotary shaft and which compresses a fluid sucked from a suction port to discharge the fluid via a discharge port; a vane disposed between the suction port and the discharge port abuts on the upper surface of the compression member and partitions a compression space in the cylinder into a low pressure chamber and a high pressure chamber; the upper surface of the compression member has a flat surface centering on an intermediate point between the top dead center and the bottom dead center and curved surfaces gradually approaching the top dead center and the bottom dead center continuously from the flat surface.Type: GrantFiled: September 8, 2005Date of Patent: June 2, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Patent number: 7524174Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: GrantFiled: July 6, 2005Date of Patent: April 28, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Patent number: 7488165Abstract: Previous compressors have employed compressors to compress and circulate refrigerant through a circuit, and have been unable to combine the differing advantages of rotary compressors, scroll compressors and screw compressors. The present invention combines these advantages, as well as inhibiting refrigerant leakage and improving overall performance, by particularly fixing the position of the compression member of the compression element relative to the driving element. The driving element is stored in a sealed container of the compressor. The compression element includes a cylinder having suction and discharge ports and a compression member which compresses a fluid (refrigerant) sucked from the suction port to discharge the fluid via the discharge port; and a vane partitioning the compression space in the cylinder into a low pressure chamber and a high pressure chamber.Type: GrantFiled: June 13, 2007Date of Patent: February 10, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Publication number: 20080298993Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: ApplicationFiled: April 15, 2008Publication date: December 4, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Publication number: 20080206071Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: ApplicationFiled: April 15, 2008Publication date: August 28, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Publication number: 20080199325Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: ApplicationFiled: April 15, 2008Publication date: August 21, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Patent number: 7381040Abstract: A compressor having a driving element stored in a sealed container of the compressor, and a compression element driven by a rotary shaft of the driving element. The compression element has a cylinder in which a compression space is constituted; a suction port and a discharge port which communicate with the compression space in the cylinder; a compression member whose one surface crosses an axial direction of the rotary shaft and is inclined continuously between a top dead center and a bottom dead center and which is rotatably disposed in the cylinder; and a vane which is disposed between the suction port and the discharge port to abut on an upper surface as one surface of the compression member and which partitions the compression space in the cylinder into a low pressure chamber and a high pressure chamber. One surface of the compression member is disposed on a side opposite to the driving element.Type: GrantFiled: September 7, 2005Date of Patent: June 3, 2008Assignee: Sanyo Electric Co., Ltd.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Publication number: 20080031764Abstract: An object is to inhibit a refrigerant leakage and enhance a performance of a compressor. The compressor comprises a driving element stored in a sealed container of the compressor, and a compression element driven by a rotary shaft of the driving element.Type: ApplicationFiled: June 13, 2007Publication date: February 7, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Publication number: 20070243093Abstract: An object is to inhibit a refrigerant leakage and enhance a performance of a compressor. The compressor comprises a driving element stored in a sealed container of the compressor, and a compression element driven by a rotary shaft of the driving element.Type: ApplicationFiled: June 13, 2007Publication date: October 18, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Patent number: 7114930Abstract: There is provided an efficient compressor which is simple in structure and small in torque fluctuation. The compressor comprises a compression element which comprises a cylinder having a compression space formed therein, a suction port and a discharge port which communicate with the compression space in the cylinder, a compression member which comprises continuous thick and thin parts, one surface of which inclines, which is arranged in the cylinder to rotate, and which compresses fluids sucked through the suction port and discharges the compressed fluids through the discharge port, and a vane which is arranged between the suction port and the discharge port to abut on one surface of the compression member, and which partitions the compression space of the cylinder into a low pressure chamber and a high pressure chamber.Type: GrantFiled: January 4, 2005Date of Patent: October 3, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara, Makoto Oonuki
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Publication number: 20060078441Abstract: An object is to provide a highly efficient compressor at a low cost while reducing sliding losses of a vane and inhibiting a leakage from the vane and a compression member to improve a workability of the vane.Type: ApplicationFiled: September 8, 2005Publication date: April 13, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Publication number: 20060067850Abstract: An object is to inhibit a refrigerant leakage and enhance a performance of a compressor. The compressor comprises a driving element stored in a sealed container of the compressor, and a compression element driven by a rotary shaft of the driving element.Type: ApplicationFiled: September 7, 2005Publication date: March 30, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hirotsugu Ogasawara, Takahiro Nishikawa, Akihiro Suda, Masayuki Hara
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Publication number: 20060008360Abstract: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation mode in which the only first rotary compression element substantially performs the compression work. When the second operation mode is switched to the first operation mode, discharge-side pressures of both the rotary compression elements are applied as a back pressure of the second vane, and thereafter an intermediate pressure is applied which is between suction-side and discharge-side pressures of both the rotary compression elements. When the first operation mode is switched to the second operation mode, a valve device interrupts flowing of a refrigerant into a second cylinder, and thereafter suction-side pressures of both the rotary compression elements are applied as the back pressure of the second vane.Type: ApplicationFiled: July 6, 2005Publication date: January 12, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda, Masayuki Hara, Hiroyuki Sawabe, Hiroyuki Yoshida, Akira Hashimoto
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Publication number: 20050214137Abstract: The present invention relates to a multicylinder rotary compressor and a compressing system and a refrigerating unit each provided with the multicylinder rotary compressor. Two-stage (cylinder) rotary compressor provides a motor-operating element and a rotary compressing element in a closed vessel, and the rotary compressing element includes a first rotary compressing element and a second rotary compressing element. This two-stage rotary compressor provides a refrigerant gas switching means comprised of a communicating pipe one end of which is opened in the closed vessel and the other end of which is opened in a back pressure portion for a vane having no spring in the second rotary compressing element, a branch pipe provided in the midway portion of this communicating pipe and a three-way valve attached to a branch point in the branch pipe. Further, a through hole in the second rotary compressing element is closed with a sealing member.Type: ApplicationFiled: March 14, 2005Publication date: September 29, 2005Inventors: Masazumi Sakaniwa, Akira Hashimoto, Masayuki Hara, Takahiro Nishikawa, Hirotsugu Ogasawara, Akihiro Suda