Patents by Inventor Satoru Egawa
Satoru Egawa 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: 20220143263Abstract: Provided is a thrombin-carrying hemostatic sheet that is suitable for hemostasis during surgery, in particular, for hemostasis during spine surgery, that is convenient without preparation before use, and that is bioabsorbable and can be embedded in the body as it is. The hemostatic sheet is composed of a gelatin sponge carrying an effective amount of thrombin, wherein (A) the density is 30 to 55 mg/cm3, and (B) the shape maintaining angle in wet conditions is 55 to 120°.Type: ApplicationFiled: March 19, 2020Publication date: May 12, 2022Applicants: Astellas Pharma Inc., National University Corporation Tokyo Medical and Dental UniversityInventors: Makoto OGINO, Keiichi YOSHIHARA, Yasuharu KIMURA, Megumi AOKI, Toshitaka YOSHII, Satoru EGAWA
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Publication number: 20190055954Abstract: A centrifugal compressor includes a rotary shaft, an electric motor, which has a rotor, a tubular boss, through which the rotary shaft extends, and a radial bearing. The rotor has a rotor end face, which is an end face in an axial direction of the rotary shaft. The boss has a boss end face, which is an end face in the axial direction of the rotary shaft. The rotor end face and the boss end face face each other in the axial direction of the rotary shaft. A thrust bearing is arranged between the rotor end face and the boss end face to receive thrust force generated by rotation of the impeller.Type: ApplicationFiled: October 18, 2016Publication date: February 21, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoru EGAWA, Nobuaki HOSHINO, Toshiro FUJII, Hironao YOKOI, Takahito KUNIEDA
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Patent number: 9897091Abstract: In a compressor of the present invention, an intermediate pressure port through which a first discharge chamber and a motor chamber communicate with each other is formed in a front housing. A refrigerant having an intermediate pressure is discharged to the first discharge chamber. Consequently, it is possible to guide the refrigerant having the intermediate pressure in the first discharge chamber to the motor chamber, and cool an electric motor, which generates heat during actuation, with the refrigerant having the intermediate pressure. In the compressor, a first impeller and a second impeller are disposed such that large diameter portions of the first impeller and the second impeller face each other. The second impeller is smaller in diameter than the first impeller.Type: GrantFiled: March 9, 2015Date of Patent: February 20, 2018Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Nobuaki Hoshino, Toshiro Fujii, Ryo Umeyama, Satoru Egawa, Hironao Yokoi, Takahito Kunieda
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Patent number: 9520759Abstract: A motor-driven compressor that includes a metal housing accommodating a compression unit and an electric motor, a cover coupled to the housing, wherein the cover includes a resin portion and a metal shield, and the shield blocks electromagnetic noise, and a bolt that couples the cover to the housing. The housing and the cover define an accommodating chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes an insertion hole into which the bolt is insertable. The shield includes a seat that surrounds the insertion hole and is held between the bolt and the housing. The cover is configured to allow for an axial force of the bolt to be applied to the seat and not to the resin portion.Type: GrantFiled: November 1, 2013Date of Patent: December 13, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Junya Yano, Yusuke Kinoshita, Satoru Egawa, Kazuhiro Kuroki, Ken Suitou
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Patent number: 9394905Abstract: A motor-driven compressor includes a compression unit, an electric motor, a housing, a cover, wherein the cover includes a main body and a connector coupler, and the cover and the housing define an accommodating chamber, a motor driving circuit that is accommodated in the accommodating chamber and includes a circuit board, and a metal terminal held in the connector coupler, wherein the metal terminal includes first and second end portions. The cover has a shield including a first shield portion, which blocks electromagnetic noise and forms at least part of the connector coupler, and a second shield portion, which blocks electromagnetic noise and forms at least part of the main body. The first and second shield portions are coupled to each other. The second shield portion includes an insertion hole into which one of the first and second end portions of the metal terminal is insertable.Type: GrantFiled: July 26, 2013Date of Patent: July 19, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke Kinoshita, Ken Suitou, Kazuhiro Kuroki, Satoru Egawa, Junya Yano, Shingo Enami
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Patent number: 9353624Abstract: In a motor-driven scroll compressor of the present invention, a double-sided sliding bearing is provided a space between a drive bush and a boss portion. The double-sided sliding bearing has a cylindrical outer sliding member that is provided in the boss portion, and a cylindrical inner sliding member that is provided in the bush portion. In an outer boundary zone of an inner circumferential surface of the boss portion and an outer circumferential surface of the outer sliding member, and an inner boundary zone of an inner circumferential surface of the inner sliding member and an outer circumferential surface of the bush portion, relative rotation is generated. The outer sliding member and the inner sliding member have different lengths in an axial direction, and thereby form a first and a second steps at both ends in the axial direction.Type: GrantFiled: June 25, 2013Date of Patent: May 31, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuro Yamashita, Ken Suitou, Kazuhiro Kuroki, Satoru Egawa
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Patent number: 9249801Abstract: A motor-driven compressor includes a housing assembly, a compression mechanism, an electric motor, a discharge port, an outlet, a discharge passage, discharge valve and a valve device. The compression mechanism is accommodated in the housing assembly. The electric motor drives the compression mechanism. The discharge chamber is formed in the housing assembly. The discharge port is formed in the housing assembly for communication between the discharge chamber and the compression mechanism. The outlet is formed in the housing assembly for communication with an external circuit. The discharge passage is formed in the housing assembly for communication between the discharge chamber and the outlet. The discharge valve is disposed in the discharge chamber for opening and closing the discharge port. The valve device is configured to adjust an opening of the discharge passage.Type: GrantFiled: September 24, 2013Date of Patent: February 2, 2016Assignee: KABUSHI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi Fukasaku, Kazuki Najima, Satoru Egawa
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Patent number: 9068570Abstract: A motor-driven compressor includes a back pressure region that pushes a movable scroll against a fixed scroll. The back pressure region is located at a side of the movable scroll located proximate to an opposing member. A defining portion, which is arranged on a movable end face, contact an opposing end face to define the back pressure region and a suction pressure region. The opposing member includes a communicating portion. An orbiting motion of the movable scroll moves the defining portion. This intermittently communicates the communicating portion with the back pressure region and the suction pressure region.Type: GrantFiled: March 13, 2013Date of Patent: June 30, 2015Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuro Yamashita, Ken Suitou, Kazuhiro Kuroki, Satoru Egawa
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Publication number: 20150152731Abstract: In a motor-driven scroll compressor of the present invention, a double-sided sliding bearing is provided a space between a drive bush and a boss portion. The double-sided sliding bearing has a cylindrical outer sliding member that is provided in the boss portion, and a cylindrical inner sliding member that is provided in the bush portion. In an outer boundary zone of an inner circumferential surface of the boss portion and an outer circumferential surface of the outer sliding member, and an inner boundary zone of an inner circumferential surface of the inner sliding member and an outer circumferential surface of the bush portion, relative rotation is generated. The outer sliding member and the inner sliding member have different lengths in an axial direction, and thereby form a first and a second steps at both ends in the axial direction.Type: ApplicationFiled: June 25, 2013Publication date: June 4, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuro Yamashita, Ken Suitou, Kazuhiro Kuroki, Satoru Egawa
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Publication number: 20140134017Abstract: A motor-driven compressor that includes a metal housing accommodating a compression unit and an electric motor, a cover coupled to the housing, wherein the cover includes a resin portion and a metal shield, and the shield blocks electromagnetic noise, and a bolt that couples the cover to the housing. The housing and the cover define an accommodating chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes an insertion hole into which the bolt is insertable. The shield includes a seat that surrounds the insertion hole and is held between the bolt and the housing. The cover is configured to allow for an axial force of the bolt to be applied to the seat and not to the resin portion.Type: ApplicationFiled: November 1, 2013Publication date: May 15, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Junya YANO, Yusuke KINOSHITA, Satoru EGAWA, Kazuhiro KUROKI, Ken SUITOU
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Publication number: 20140090412Abstract: A motor-driven compressor includes a housing assembly, a compression mechanism, an electric motor, a discharge port, an outlet, a discharge passage, discharge valve and a valve device. The compression mechanism is accommodated in the housing assembly. The electric motor drives the compression mechanism. The discharge chamber is formed in the housing assembly. The discharge port is formed in the housing assembly for communication between the discharge chamber and the compression mechanism. The outlet is formed in the housing assembly for communication with an external circuit. The discharge passage is formed in the housing assembly for communication between the discharge chamber and the outlet. The discharge valve is disposed in the discharge chamber for opening and closing the discharge port. The valve device is configured to adjust an opening of the discharge passage.Type: ApplicationFiled: September 24, 2013Publication date: April 3, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroshi FUKASAKU, Kazuki NAJIMA, Satoru EGAWA
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Publication number: 20140037470Abstract: A motor-driven compressor includes a compression unit, an electric motor, a housing, a cover, wherein the cover includes a main body and a connector coupler, and the cover and the housing define an accommodating chamber, a motor driving circuit that is accommodated in the accommodating chamber and includes a circuit board, and a metal terminal held in the connector coupler, wherein the metal terminal includes first and second end portions. The cover has a shield including a first shield portion, which blocks electromagnetic noise and forms at least part of the connector coupler, and a second shield portion, which blocks electromagnetic noise and forms at least part of the main body. The first and second shield portions are coupled to each other. The second shield portion includes an insertion hole into which one of the first and second end portions of the metal terminal is insertable.Type: ApplicationFiled: July 26, 2013Publication date: February 6, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke KINOSHITA, Ken SUITOU, Kazuhiro KUROKI, Satoru EGAWA, Junya YANO, Shingo ENAMI
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Publication number: 20130259726Abstract: A motor-driven compressor includes a back pressure region that pushes a movable scroll against a fixed scroll. The back pressure region is located at a side of the movable scroll located proximate to an opposing member. A defining portion, which is arranged on a movable end face, contact an opposing end face to define the back pressure region and a suction pressure region. The opposing member includes a communicating portion. An orbiting motion of the movable scroll moves the defining portion. This intermittently communicates the communicating portion with the back pressure region and the suction pressure region.Type: ApplicationFiled: March 13, 2013Publication date: October 3, 2013Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuro YAMASHITA, Ken SUITOU, Kazuhiro KUROKI, Satoru EGAWA
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Patent number: 8210833Abstract: A motor-driven compressor includes a terminal housing made of an electrically insulating material and accommodating therein an electrical connecting portion which includes a connecting terminal connecting to a conductive member and an electric wire. The compressor includes a first seal member and a second seal member to seal the inside of the terminal housing from the outside thereof. The terminal housing has a distance-increasing portion that increases the communicating distance from a compressor housing to the electrical connecting portion in the terminal housing. The distance-increasing portion allows the pressures in the terminal housing and the compressor housing to be equalized.Type: GrantFiled: June 5, 2009Date of Patent: July 3, 2012Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Satoru Egawa, Ken Suitou, Shinya Nakamura
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Publication number: 20090304536Abstract: A motor-driven compressor includes a terminal housing made of an electrically insulating material and accommodating therein an electrical connecting portion which includes a connecting terminal connecting to a conductive member and an electric wire. The compressor includes a first seal member and a second seal member to seal the inside of the terminal housing from the outside thereof. The terminal housing has a distance-increasing portion that increases the communicating distance from a compressor housing to the electrical connecting portion in the terminal housing. The distance-increasing portion allows the pressures in the terminal housing and the compressor housing to be equalized.Type: ApplicationFiled: June 5, 2009Publication date: December 10, 2009Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoru EGAWA, Ken SUITOU, Shinya NAKAMURA
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Patent number: 7264453Abstract: A motor accommodating chamber accommodates an electric motor such that a rotation axis of the motor is substantially horizontal. The pressure in the motor accommodating chamber is equal to the pressure in a suction chamber. A connecting passage connects a bottom portion of the motor accommodating chamber with the suction chamber. Therefore, mixture of liquids having a lowered insulating property is prevented from staying in a motor accommodating chamber.Type: GrantFiled: March 30, 2004Date of Patent: September 4, 2007Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Hiroyuki Gennami, Yoshikazu Fukutani, Satoru Egawa, Shinji Tsubai, Kazuya Kimura
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Publication number: 20040191082Abstract: A motor accommodating chamber accommodates an electric motor such that a rotation axis of the motor is substantially horizontal. The pressure in the motor accommodating chamber is equal to the pressure in a suction chamber. A connecting passage connects a bottom portion of the motor accommodating chamber with the suction chamber. Therefore, mixture of liquids having a lowered insulating property is prevented from staying in a motor accommodating chamber.Type: ApplicationFiled: March 30, 2004Publication date: September 30, 2004Inventors: Hiroyuki Gennami, Yoshikazu Fukutani, Satoru Egawa, Shinji Tsubai, Kazuya Kimura
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Patent number: 6599110Abstract: A scroll-type compressor having a stationary scroll and a movable scroll is provided. A compression chamber is defined between a stationary scroll and a movable scroll. A refrigerant introducing passage formed in the movable scroll for introducing a refrigerant from the compression chamber to a driving mechanism. The compressed refrigerant including a lubricant introduced through the passage is affective to lubricate the driving mechanism. The compressor may also include a sump to collect the lubricant leaving the driving mechanism. Collected lubricant is reintroduced into the compression region via a suction region of the compressor.Type: GrantFiled: March 25, 2002Date of Patent: July 29, 2003Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Hiroyuki Gennami, Kazuhiro Kuroki, Satoru Egawa, Yoshikazu Fukutani, Ken Suitou
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Publication number: 20030068246Abstract: A compressor comprises a housing assembly, a compression mechanism and a sealing member. The housing assembly has a first housing member and a second housing member coupled to each other. The first housing member has an opening end surface. The second housing member has an opening end surface. The compression mechanism is disposed in the first housing member and compresses gas supplied to the compressor. The sealing member includes a first portion and a second portion. The first portion is interposed between the opening end surface of the first housing member and the opening end surface of the second housing member. The second portion of the sealing extends radially inwardly from the first portion to be interposed between the compression mechanism and the second housing member.Type: ApplicationFiled: August 9, 2002Publication date: April 10, 2003Inventors: Kazuya Kimura, Ken Suitou, Hiroyuki Gennami, Kazuhiro Kuroki, Satoshi Egashira, Satoru Egawa, Yoshikazu Fukutani
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Publication number: 20020176785Abstract: A compressor includes a housing, a compression mechanism, a rotary unit and a sliding bearing. The compression mechanism compresses refrigerant in the housing. The rotary unit drives the compression mechanism. The sliding bearing is supported in the housing while rotatably supporting the rotary unit. The sliding bearing has a base member, porous metal layer and fluoro resin layer. The surface of the base member is coated with the porous metal layer having solid lubricating performance. The surface is coated with the fluoro resin layer through the porous metal layer.Type: ApplicationFiled: May 23, 2002Publication date: November 28, 2002Inventors: Ken Suitou, Shinji Tsubai, Hiroyuki Gennami, Kazuhiro Kuroki, Yoshikazu Fukutani, Satoru Egawa, Toshihiro Kawai, Hirotaka Kurakake, Shigeki Kawachi, Hidenori Iida, Masaki Ota, Tomoji Tarutani