Patents by Inventor Yasunori Kiyokawa
Yasunori Kiyokawa 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: 10227982Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a stator 37 of the driving motor 13 is directly or indirectly supported in the casing 3, and the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, and a lower end of the driving shaft 15 is supported by a thrust plate 6 provided to the bearing plate 8, and the center position of the rotor 39 is located to be lower than the center position of the stator 37.Type: GrantFiled: December 20, 2011Date of Patent: March 12, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Kenji Aida, Kazuyoshi Sugimoto, Yasunori Kiyokawa, Yoshihiko Nagase, Katsuki Akuzawa, Yoshiaki Nagasawa
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Patent number: 9581160Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38B, 54A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.Type: GrantFiled: December 20, 2011Date of Patent: February 28, 2017Assignee: Panasonic Intellectual Property Management Co. Ltd.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kenji Aida, Kazuyoshi Sugimoto, Yasunori Kiyokawa, Yoshihiko Nagase, Yoshiaki Nagasawa
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Patent number: 9494155Abstract: A scroll compression device that prevents scattering of lubrication oil to a discharge pipe side is provided. A cup 48 which is opened at the lower portion thereof and prevents scattering of lubrication oil is disposed on the lower surface of the main frame 21, and an annular insulator 19 having a double wall structure which surrounds windings is disposed on the upper surface of a stator 37. The peripheral wall of the cup 48 is hung between the double walls 19A, 19B of the insulator.Type: GrantFiled: December 20, 2011Date of Patent: November 15, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Yasunori Kiyokawa, Kazuyoshi Sugimoto, Yoshihiko Nagase, Katsuki Akuzawa, Kenji Aida, Yoshiaki Nagasawa
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Patent number: 8845310Abstract: A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft, an insulator and a stator, and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that has a boss portion in which the driving shaft is inserted, and supports the driving shaft of the driving motor in the casing, and a cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate and is formed of an insulating material and provided to the insulator of the driving motor.Type: GrantFiled: August 14, 2012Date of Patent: September 30, 2014Assignee: SANYO Electric Co., Ltd.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Yasunori Kiyokawa
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Patent number: 8827667Abstract: A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that supports the driving shaft of the driving motor in the casing and has an opening portion through which upper and lower spaces above and below the bearing plate intercommunicate with each other, and a first cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate, wherein the cover is configured so as to be passable through the opening portion.Type: GrantFiled: August 14, 2012Date of Patent: September 9, 2014Assignee: SANYO Electric Co., Ltd.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Yasunori Kiyokawa
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Publication number: 20140161649Abstract: There are provided a scroll compression device in which magnetization of a rotor and centering of a fixed scroll can be easily performed, and a method of assembling the scroll compression device.Type: ApplicationFiled: December 20, 2011Publication date: June 12, 2014Applicant: SANYO ELECTRIC CO., LTDInventors: Akihiro Hayashi, Satoshi Iitsuka, Kenji Aida, Tsutomu Kon, Yasunori Kiyokawa, Kazuyoshi Sugimoto, Yoshihiko Nagase, Katsuki Akuzawa, Yoshiaki Nagasawa
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Publication number: 20140064995Abstract: A scroll compression device that enhances the efficiency of workability of magnetization of windings is provided. A scroll compression mechanism 11 for compressing refrigerant and a driving shaft 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a rotor 39 of the driving motor 13 is connected to the driving shaft 15, the driving shaft 15 is supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and a holder 58 extending in a radial direction is provided in the oil supply path 41 at the back side of the pickup 45.Type: ApplicationFiled: December 20, 2011Publication date: March 6, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kenji Aida, Yoshiaki Nagasawa, Kazuyoshi Sugimoto, Yasunori Kiyokawa, Yoshihiko Nagase
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Publication number: 20140056736Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a stator 37 of the driving motor 13 is directly or indirectly supported in the casing 3, and the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, and a lower end of the driving shaft 15 is supported by a thrust plate 6 provided to the bearing plate 8, and the center position of the rotor 39 is located to be lower than the center position of the stator 37.Type: ApplicationFiled: December 20, 2011Publication date: February 27, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Kenji Aida, Kazuyoshi Sugimoto, Yasunori Kiyokawa, Yoshihiko Nagase, Katsuki Akuzawa, Yoshiaki Nagasawa
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Publication number: 20140044572Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38B, 54A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.Type: ApplicationFiled: December 20, 2011Publication date: February 13, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kenji Aida, Kazuyoshi Sugimoto, Yasunori Kiyokawa, Yoshihiko Nagase, Yoshiaki Nagasawa
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Publication number: 20140037474Abstract: A scroll compression device that prevents scattering of lubrication oil to a discharge pipe side is provided. A cup 48 which is opened at the lower portion thereof and prevents scattering of lubrication oil is disposed on the lower surface of the main frame 21, and an annular insulator 19 having a double wall structure which surrounds windings is disposed on the upper surface of a stator 37. The peripheral wall of the cup 48 is hung between the double walls 19A, 19B of the insulator.Type: ApplicationFiled: December 20, 2011Publication date: February 6, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Yasunori Kiyokawa, Kazuyoshi Sugimoto, Yoshihiko Nagase, Katsuki Akuzawa, Kenji Aida, Yoshiaki Nagasawa
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Publication number: 20140017107Abstract: A scroll compressor which is capable of preventing thermal damage to an O-ring and has a filter arrangement structure with favorable installation work efficiency is provided. The compressor is configured such that an intake pipe (50) for drawing in a refrigerant gas through an external pipe (P) is securely joined to a steel compressor casing (10) by penetrating therethrough, the compressor casing housing a stationary scroll (22) and a swingable scroll (24); and the lower end part of the intake pipe is fitted into an intake portion (22K) with an O-ring (60) disposed therebetween, the intake portion being provided in the stationary scroll. The intake pipe is configured to have a steel iron pipe body (54) on the intake portion side and a copper pipe body (52) joined to the upper end part of the iron pipe body. The copper pipe body of the intake pipe is silver-brazed (13) to the compressor casing, and a filter (F) is installed in the intake pipe.Type: ApplicationFiled: December 27, 2011Publication date: January 16, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Tsutomu Kon, Satoshi Iitsuka, Akihiro Hayashi, Kazuyoshi Sugimoto, Yasunori Kiyokawa
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Patent number: 8597004Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll and a hermetically sealed container, one of the fixed scroll and the movable scroll including an intercommunication path having a lower hole opened to the outside of the one scroll and an insertion hole formed by subjecting the lower hole to reaming processing from the one end to a position of a predetermined depth of the lower hole, a pin member that is slightly smaller in diameter than the intercommunication path and movably inserted in the intercommunication path, and a screw member that is provided at one end of the intercommunication path to close the one end of the intercommunication path so as to press the pin member against the end of the back side of the intercommunication path.Type: GrantFiled: February 19, 2010Date of Patent: December 3, 2013Assignee: Sanyo Electric Co., Ltd.Inventors: Yasunori Kiyokawa, Tsutomu Kon, Katsuki Akuzawa, Kazuyoshi Sugimoto
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Patent number: 8585381Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll, and a hermetically sealed container in which the fixed scroll and the movable scroll are mounted. The fixed scroll or the movable scroll has an intercommunication path for lubricating oil that is opened to the outside of the one scroll at one end thereof, extends radially inside the scroll and has a high-pressure opening intercommunicating with a high-pressure portion of the container and a low-pressure opening intercommunicating with a low-pressure portion in the scroll, a pin member disposed in the intercommunication path so as to be movable radially in the scroll, a screw member closing one end of the intercommunication path, and a stopper provided at a predetermined position in the intercommunication path to regulate radial movement of the pin member.Type: GrantFiled: February 19, 2010Date of Patent: November 19, 2013Assignee: Sanyo Electric Co., Ltd.Inventors: Yasunori Kiyokawa, Yoshiaki Koike, Tsutomu Kon, Katsuki Akuzawa, Satoshi Iitsuka, Kenji Aida, Akihiro Hayashi, Kazuyoshi Sugimoto
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Publication number: 20130052069Abstract: A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that supports the driving shaft of the driving motor in the casing and has an opening portion through which upper and lower spaces above and below the bearing plate intercommunicate with each other, and a first cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate, wherein the cover is configured so as to be passable through the opening portion.Type: ApplicationFiled: August 14, 2012Publication date: February 28, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Yasunori Kiyokawa
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Publication number: 20130052068Abstract: A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft, an insulator and a stator, and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that has a boss portion in which the driving shaft is inserted, and supports the driving shaft of the driving motor in the casing, and a cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate and is formed of an insulating material and provided to the insulator of the driving motor.Type: ApplicationFiled: August 14, 2012Publication date: February 28, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Iitsuka, Tsutomu Kon, Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Yasunori Kiyokawa
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Patent number: 8348647Abstract: A scroll type compressor includes a fixed scroll having a suction opening, a movable scroll, a hermetically sealed container having an upper cap, and a suction pipe that penetrates through the upper cap and is engagedly fitted through an O ring in the suction opening of the fixed scroll at a lower portion thereof. The upper cap includes a pipe stand formed of iron at a suction-pipe penetrating portion thereof. The suction pipe comprises an iron lower suction member that is engagedly fitted in the suction opening of the fixed scroll and an O-ring groove in which the O ring is fitted, and a copper upper suction member that is joined to the lower suction member by brazing and engagedly fitted in the pipe stand. The upper suction member and the pipe stand are joined to each other by brazing.Type: GrantFiled: February 19, 2010Date of Patent: January 8, 2013Assignee: Sanyo Electric Co., Ltd.Inventors: Yasunori Kiyokawa, Satoshi Iitsuka, Kazuyoshi Sugimoto
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Patent number: 8303280Abstract: In a scroll type compressor including a fixed scroll having a mirror plate and a lap provided to the mirror plate, a movable scroll having a mirror plate and a lap provided to the mirror plate and engaged with the fixed scroll, and an Oldham's ring disposed on the back side of the movable scroll for constraining rotation of the movable scroll on the axis thereof, the Oldham's ring has a pair of fixing locking pawls extending from the back side of the movable scroll and fitted to the fixed scroll, each of the fixing locking pawls is provided with a reinforcing portion at the base portion thereof, and the mirror plate of the movable scroll is cut out in a concave shape at the edge portion thereof in conformity with a movement range of the reinforcing portion to form a concaved escape portion at the edge portion of the mirror plate.Type: GrantFiled: February 19, 2010Date of Patent: November 6, 2012Assignee: Sanyo Electric Co., Ltd.Inventors: Yasunori Kiyokawa, Yoshiaki Koike, Kazuyoshi Sugimoto
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Publication number: 20100215536Abstract: In a scroll type compressor including a fixed scroll having a mirror plate and a lap provided to the mirror plate, a movable scroll having a mirror plate and a lap provided to the mirror plate and engaged with the fixed scroll, and an Oldham's ring disposed on the back side of the movable scroll for constraining rotation of the movable scroll on the axis thereof, the Oldham's ring has a pair of fixing locking pawls extending from the back side of the movable scroll and fitted to the fixed scroll, each of the fixing locking pawls is provided with a reinforcing portion at the base portion thereof, and the mirror plate of the movable scroll is cut out in a concave shape at the edge portion thereof in conformity with a movement range of the reinforcing portion to form a concaved escape portion at the edge portion of the mirror plate.Type: ApplicationFiled: February 19, 2010Publication date: August 26, 2010Inventors: Yasunori KIYOKAWA, Yoshiaki Koike, Kazuyoshi Sugimoto
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Publication number: 20100215535Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll, and a hermetically sealed container in which the fixed scroll and the movable scroll are mounted. The fixed scroll or the movable scroll has an intercommunication path for lubricating oil that is opened to the outside of the one scroll at one end thereof, extends radially inside the scroll and has a high-pressure opening intercommunicating with a high-pressure portion of the container and a low-pressure opening intercommunicating with a low-pressure portion in the scroll, a pin member disposed in the intercommunication path so as to be movable radially in the scroll, a screw member closing one end of the intercommunication path, and a stopper provided at a predetermined position in the intercommunication path to regulate radial movement of the pin member.Type: ApplicationFiled: February 19, 2010Publication date: August 26, 2010Inventors: Yasunori KIYOKAWA, Yoshiaki Koike, Tsutomu Kon, Katsuki Akuzawa, Satoshi Iitsuka, Kenji Aida, Akihiro Hayashi, Kazuyoshi Sugimoto
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Publication number: 20100215534Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll and a hermetically sealed container, one of the fixed scroll and the movable scroll including an intercommunication path having a lower hole opened to the outside of the one scroll and an insertion hole formed by subjecting the lower hole to reaming processing from the one end to a position of a predetermined depth of the lower hole, a pin member that is slightly smaller in diameter than the intercommunication path and movably inserted in the intercommunication path, and a screw member that is provided at one end of the intercommunication path to close the one end of the intercommunication path so as to press the pin member against the end of the back side of the intercommunication path.Type: ApplicationFiled: February 19, 2010Publication date: August 26, 2010Inventors: Yasunori KIYOKAWA, Tsutomu Kon, Katsuki Akuzawa, Kazuyoshi Sugimoto