Patents by Inventor Kouichi Tsubata
Kouichi Tsubata 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: 10690410Abstract: A freeze-drying system is provided in which freeze-drying is performed by sublimating moisture frozen by cooling an object and collects the sublimated moisture with a cold trap. The freeze-drying system includes: a cooling device which generates cold with an air cycle in which air is used as a refrigerant; a freeze-drying chamber accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object; a cold air supplying mechanism which supplies precooled air into the freeze-drying chamber; and a control unit which controls a cooling capacity of the cooling device. The control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device. The cold air supplying mechanism includes an air supply line through which air, as the refrigerant that circulates in the air cycle, is partially introduced into the freeze-drying chamber.Type: GrantFiled: May 14, 2018Date of Patent: June 23, 2020Assignee: MAYEKAWA MFG. CO., LTD.Inventors: Kouichi Tsubata, Shigeru Iwami, Youichi Hiraga, Nobuya Ishitsuka
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Patent number: 10309723Abstract: An object is to provide a freeze-drying system and a freeze-drying method which can improve cleanliness and productivity. The present invention relates to a freeze-drying system in which freeze-drying is performed by sublimating moisture frozen by cooling an object. The system includes a cooling device (3) which generates cold with an air cycle in which air is used as a refrigerant, a freeze-drying chamber (2) accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object, and a control unit (11) which controls a cooling capacity of the cooling device. The control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device.Type: GrantFiled: June 25, 2014Date of Patent: June 4, 2019Assignee: MAYEKAWA MFG.CO., LTD.Inventors: Kouichi Tsubata, Shigeru Iwami, Youichi Hiraga, Nobuya Ishitsuka
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Publication number: 20180259253Abstract: A freeze-drying system is provided in which freeze-drying is performed by sublimating moisture frozen by cooling an object and collects the sublimated moisture with a cold trap. The freeze-drying system includes: a cooling device which generates cold with an air cycle in which air is used as a refrigerant; a freeze-drying chamber accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object; a cold air supplying mechanism which supplies precooled air into the freeze-drying chamber; and a control unit which controls a cooling capacity of the cooling device. The control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device. The cold air supplying mechanism includes an air supply line through which air, as the refrigerant that circulates in the air cycle, is partially introduced into the freeze-drying chamber.Type: ApplicationFiled: May 14, 2018Publication date: September 13, 2018Applicant: MAYEKAWA MFG. CO., LTD.Inventors: KOUICHI TSUBATA, SHIGERU IWAMI, YOUICHI HIRAGA, NOBUYA ISHITSUKA
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Publication number: 20160153713Abstract: An object is to provide a freeze-drying system and a freeze-drying method which can improve cleanliness and productivity. The present invention relates to a freeze-drying system in which freeze-drying is performed by sublimating moisture frozen by cooling an object. The system includes a cooling device (3) which generates cold with an air cycle in which air is used as a refrigerant, a freeze-drying chamber (2) accommodating a heat exchange unit which causes heat exchange between the refrigerant and the object, and a control unit (11) which controls a cooling capacity of the cooling device. The control unit adjusts the temperature in the freeze-drying chamber to a predetermined target temperature by controlling an amount of the cold generated in the cooling device.Type: ApplicationFiled: June 25, 2014Publication date: June 2, 2016Applicant: MAYEKAWA MFG.CO., LTD.Inventors: KOUICHI TSUBATA, SHIGERU IWAMI, YOUICHI HIRAGA, NOBUYA SHITSUKA
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Patent number: 8347639Abstract: A tempering treatment method whereby the temperature of meat, which involves a carcass prepared by slaughtering cattle or poultry and sterilizing and washing, is lowered as close to the ice storage temperature as possible to prevent a temperature rise caused by the actions of enzymes contained within the meat before transporting the meat to a refrigerated storage, which comprises surface-freezing the meat by blowing a cold air stream at about ?20 to about ?40° C. to the meat before conducting the tempering treatment, thus allowing the generation of freezing latent heat in the subcutaneous part owing to the surface-freezing (freezing the subcutaneous tissue), and then rapidly lowering the core temperature inside the meat due to the latent heat released at the melting of the freezing latent heat to thereby conduct the tempering treatment at a temperature of 0 to +15° C.Type: GrantFiled: September 21, 2009Date of Patent: January 8, 2013Assignee: Mayekawa Mfg. Co., Ltd.Inventors: Naoto Okamoto, Suguru Sakuramoto, Takahiro Arai, Kouichi Tsubata, Akira Taniyama
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Publication number: 20100075016Abstract: A tempering treatment method whereby the temperature of meat, which involves carcass prepared by slaughtering cattle or poultry and sterilizing and washing, is lowered as close to the ice storage temperature as possible to prevent a temperature rise caused by the actions of enzymes contained within the meat before transporting the meant to a refrigerated storage, which comprises surface-freezing the meat by blowing a cold air stream at about ?20 to about ?40° C. to the meant before conducting the tempering treatment, thus allowing the generation of freezing latent heat in the subcutaneous part owing to the surface-freezing (freezing the subcutaneous tissue), and then rapidly lowering the core temperature inside the meat due to the latent heat released at the melting of the freezing latent heat to thereby conduct the tempering treatment at a temperature of 0 to +15° C.Type: ApplicationFiled: September 21, 2009Publication date: March 25, 2010Applicant: MAYEKAWA MFG. CO., LTD.Inventors: Naoto OKAMOTO, Suguru SAKURAMOTO, Takahiro ARAI, Kouichi TSUBATA, Akira TANIYAMA
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Patent number: 7544122Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.Type: GrantFiled: April 5, 2006Date of Patent: June 9, 2009Assignee: Mayekawa Mfg. Co., Ltd.Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
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Publication number: 20090137198Abstract: An insect/dust-proof air shutter which can positively prevent intrusion of foreign mater such as insects and dust and further trap intruded insects is provided.Type: ApplicationFiled: April 4, 2007Publication date: May 28, 2009Applicant: MAYEKAWA MFG. CO., LTD.Inventors: Kouichi Tsubata, Nobuo Osuga, Takahiro Akizuki, Hideki Fuchikami, Masataka Ogura, Akifumi Manaka, Masakatsu Ando, Tatsuya Nakanishi
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Publication number: 20060199500Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.Type: ApplicationFiled: April 5, 2006Publication date: September 7, 2006Applicant: MAYEKAWA MFG. CO., LTD.Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
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Patent number: 7037189Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.Type: GrantFiled: December 12, 2003Date of Patent: May 2, 2006Assignee: Mayekawa Mfg. Co., Ltd.Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
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Publication number: 20040242145Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.Type: ApplicationFiled: December 12, 2003Publication date: December 2, 2004Applicant: Mayekawa Mfg. Co., Ltd.Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome