Patents by Inventor Manabu Takenaka
Manabu Takenaka 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: 7736138Abstract: A compressor comprises: a cylinder with a compression space; a suction port and a discharge port which communicate with the compression space in the cylinder; a support member which closes an opening of the cylinder; a rotary shaft which is rotatably supported on the support member; a compression member whose one surface crossing an axial direction of the rotary shaft is inclined continuously between a top dead center and a bottom dead center and which is rotated and compresses a fluid to discharge the fluid via the discharge port; and a vane which is disposed between a suction port and the discharge port, abuts on one surface of the compression member and partitions the compression space in the cylinder into high and low pressure chambers.Type: GrantFiled: June 13, 2007Date of Patent: June 15, 2010Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Patent number: 7581937Abstract: A compressor having a sealed container; 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 support member which closes an opening of the cylinder; a rotary shaft which is rotatably supported by a main bearing as a bearing formed on the support member; a compression member whose one surface crossing an axial direction of the rotary shaft is inclined continuously between a top dead center and a bottom dead center; a vane which is disposed between the suction port and the discharge port to abut on one surface side of the compression member and which partitions the compression space in the cylinder into a low pressure chamber and a high pressure chamber. A pressure of the compression member on the other surface side of the compression member is set to a value which is lower than tat of a pressure in the sealed container.Type: GrantFiled: June 13, 2007Date of Patent: September 1, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Patent number: 7481635Abstract: A compressor having a compression element with 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 support member which closes an opening on the cylinder and a rotary shaft which is rotatably supported by a main bearing as a bearing formed on the support member. A compression member, whose one surface crosses an axial direction of the rotary shaft is inclined continuously between a top dead center and a bottom dead center and is disposed in the cylinder to be rotated by the rotary shaft, compresses a fluid sucked from the suction port to discharge the fluid via the discharge port. A vane which is disposed between the suction port and the discharge port to abut on one surface of the compression member partitions the compression space in the cylinder into a low pressure chamber and high pressure chamber.Type: GrantFiled: September 7, 2005Date of Patent: January 27, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Publication number: 20080031753Abstract: An object is to provide a highly efficient compressor while improving a refrigerant leakage, enhancing a performance of a compressor, improving durability, and enhancing reliability.Type: ApplicationFiled: June 13, 2007Publication date: February 7, 2008Applicant: SANYO ELECTRIC CO., LTDInventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Publication number: 20070243092Abstract: An object is to provide a highly efficient compressor while improving a refrigerant leakage, enhancing a performance of a compressor, improving durability, and enhancing reliability.Type: ApplicationFiled: June 13, 2007Publication date: October 18, 2007Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Publication number: 20060078440Abstract: An object is to provide a highly efficient compressor while improving a refrigerant leakage, enhancing a performance of a compressor, improving durability, and enhancing reliability.Type: ApplicationFiled: September 7, 2005Publication date: April 13, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takahiro Nishikawa, Hirotsugu Ogasawara, Takao Kanayama, Yoshiaki Hiruma, Manabu Takenaka, Masazumi Sakaniwa, Akira Hashimoto, Junichi Suzuki
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Patent number: 6893237Abstract: There is provided a horizontal rotary compressor capable of improving performance thereof while an oil supply means smoothly supplies oil. A part of a hermetic shell case at the upper side is partitioned by a baffle into an electric element side and an oil pump side, a refrigerant which is drawn from an outside of the hermetic shell case is compressed by a first rotary compression element and a second rotary compression element and discharged toward the electric element side of the baffle, then it is further discharged from oil pump side toward the outside of the hermetic shell case. The baffle closes a flow path area of the refrigerant over an oil level inside the hermetic shell case at a ratio ranging from not less than 50% to not more than 80% during the stoppage of the horizontal rotary compressor.Type: GrantFiled: March 14, 2003Date of Patent: May 17, 2005Assignee: Sanyo Electric Co., Ltd.Inventors: Masaji Yamanaka, Etsuo Toriyama, Manabu Takenaka, Yoshihisa Kogure
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Patent number: 6722486Abstract: The bill input/output part has a movable pusher plate and a front plate and a partition plate movable between the pusher plate and the front plate to store bills, which are to be returned or paid, between the pusher plate and the partition plate, and also includes a controller to vary the distance between the pusher plate and the partition plate according to the number of bills to be stored. Bills can be arranged upright. After the bills stored between the pusher plate and the partition plate are extracted, the distance between the partition plate and the front plate is widened. This operation makes it easy to re-enter bills in the space. When a remaining bill, such as a folded bill is detected, the space between the pusher plate and the partition plate is widened so that the user can easily be notified of a failure to extract.Type: GrantFiled: February 7, 2002Date of Patent: April 20, 2004Assignee: Hitachi, Ltd.Inventors: Yasushi Shibata, Manabu Takenaka
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Publication number: 20030175140Abstract: There is provided a horizontal rotary compressor capable of improving performance thereof while an oil supply means smoothly supplies oil. A part of a hermetic shell case at the upper side is partitioned by a baffle into an electric element side and an oil pump side, a refrigerant which is drawn from an outside of the hermetic shell case is compressed by a first rotary compression element and a second rotary compression element and discharged toward the electric element side of the baffle, then it is further discharged from oil pump side toward the outside of the hermetic shell case. The baffle closes a flow path area of the refrigerant over an oil level inside the hermetic shell case at a ratio ranging from not less than 50% to not more than 80% during the stoppage of the horizontal rotary compressor.Type: ApplicationFiled: March 14, 2003Publication date: September 18, 2003Applicant: SANYO ELECTRIC CO., LTD.Inventors: Masaji Yamanaka, Etsuo Toriyama, Manabu Takenaka, Yoshihisa Kogure
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Patent number: 6582207Abstract: An objective of the present invention is to provide a motor compressor that reduces noise by lessening a contact area between a stator and a shell, wherein a motor element is constituted of a stator having a stator core that contacts and is fixed to an internal wall of the closed vessel, and a rotator having a magnetic substance, which is attached to the rotating shaft and is rotatably supported in the inside of the stator construct. It is essential that H<Ho is satisfied wherein H is a dimension in a rotating shaft direction of an area in which the stator core contacts the closed vessel and Ho is a dimension in a rotating shaft direction of the stator core.Type: GrantFiled: May 24, 2001Date of Patent: June 24, 2003Assignee: Sanyo Electric Co., LTDInventors: Kenzo Matsumoto, Manabu Takenaka, Tsuyoshi Higuchi, Kazuaki Fujiwara, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai
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Patent number: 6533558Abstract: An object of the present invention is to attain the downsizing of a closed rotary compressor while realizing separation of oil from gas without any problem, and since an electric motor is constituted by a motor of a magnetic pole concentrated winding type which includes: a stator fixed to the inner wall of a closed container; a rotator rotatably supported by a rotating shaft on the inner side of said stator; a stator core constituting said stator; a plurality of cog portions and slot portions formed to said stator core; and a stator winding directly wound around each cog portion utilizing the slot portions, a protrusion dimension of the winding from the stator core is reduced, and the excellent oil separation effect can be obtained.Type: GrantFiled: June 28, 2000Date of Patent: March 18, 2003Assignee: Sanyo Electric Co., LTDInventors: Kenzo Matsumoto, Manabu Takenaka, Tsuyoshi Higuchi, Kazuaki Fujiwara, Dai Matsuura, Aritomo Sato, Akira Hashimoto
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Publication number: 20020121422Abstract: The bill input/output part has a movable pusher plate and a front plate and a partition plate movable between the pusher plate and the front plate to store bills, which are to be returned or paid, between the pusher plate and the partition plate, and also includes a controller to vary the distance between the pusher plate and the partition plate according to the number of bills to be stored. Bills can be arranged upright. After the bills stored between the pusher plate and the partition plate are extracted, the distance between the partition plate and the front plate is widened. This operation makes it easy to re-enter bills in the space. When a remaining bill, such as a folded bill is detected, the space between the pusher plate and the partition plate is widened so that the user can easily be notified of a failure to extract.Type: ApplicationFiled: February 7, 2002Publication date: September 5, 2002Inventors: Yasushi Shibata, Manabu Takenaka
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Patent number: 6435850Abstract: A rotary compressor uses a freon without containing chlorine ions and uses polyol ester as a lubricant or plyvinyl ether as a base oil for providing a highly reliable rotary compressor, and for preventing abnormal abrasion. The rotary compressor has a roller and a vane sliding contact with an outer cirumference of the roller. A sliding contact portion between the vane and the roller is formed with a radius of curvature Rv, and satisfies T<Rv<Rr, wherein T is the thickness of the vane and Rr is the radius of curvature of the outer circumference of the roller.Type: GrantFiled: February 22, 2001Date of Patent: August 20, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Takashi Sunaga, Kenzo Matsumoto, Manabu Takenaka, Masazo Okajima
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Publication number: 20020051715Abstract: An objective of the present invention is to provide a motor compressor that reduces noise by lessening a contact area between a stator and a shell, wherein a motor element is constituted of a stator having a stator core that contacts and is fixed to an internal wall of the closed vessel, and a rotator having a magnetic substance, which is attached to the rotating shaft and is rotatably supported in the inside of the stator construct. It is essential that H<Ho is satisfied wherein H is a dimension in a rotating shaft direction of an area in which the stator core contacts the closed vessel and Ho is a dimension in a rotating shaft direction of the stator core.Type: ApplicationFiled: May 24, 2001Publication date: May 2, 2002Inventors: Kenzo Matsumoto, Manabu Takenaka, Tsuyoshi Higuchi, Kazuaki Fujiwara, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai
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Publication number: 20010043879Abstract: A rotary compressor uses a freon without containing chlorine ions and uses polyol ester as a lubricant or plyvinyl ether as a base oil for providing a highly reliable rotary compressor, and for preventing abnormal abrasion. The rotary compressor has a roller and a vane sliding contact with an outer circumference of the roller. A sliding contact portion between the vane and the roller is formed with a curvature Rv, and satisfies T<Rv<Rr, wherein T is the thickness of the vane and Rr is the curvature of the outer circumference of the roller.Type: ApplicationFiled: February 22, 2001Publication date: November 22, 2001Inventors: Takashi Sunaga, Kenzo Matsumoto, Manabu Takenaka, Masazo Okajima
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Patent number: 6280168Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can eliminate a number of balancers for preventing vibrations. Assuming that the mass eccentricity in a cylinder is m1×r1; the mass eccentricity in another cylinder is m2×r2; the mass eccentricity of a balancer attached to the lower side of a rotator is m3×r3; the mass eccentricity of another balancer attached to the upper side of the rotator is m4×r4; respective distances from the cylinder to another cylinder, the lower balancer and another balancer are L2, L3 and L4, when the balancing is attained with the expressions m1×r1+m4×r4=m2×r2+m3×r3, m4×r4×L4=m2×r2×L2+m3×r3×L3, and m1×r1=m2×r2, the lower balancer is eliminated and the mass eccentricity of the balancer is set to be not less than 20% and not more than 80% of m4×r4.Type: GrantFiled: June 30, 2000Date of Patent: August 28, 2001Assignee: Sanyo Electric Co., LTDInventors: Kenzo Matsumoto, Manabu Takenaka, Tsuyoshi Higuchi, Kazuaki Fujiwara, Dai Matsuura