Patents Assigned to Nishiyama Corporation
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Publication number: 20130307226Abstract: At least one embodiment relates to a sealing system comprising a first end bracket, a second end bracket, a plurality of sections disposed between the first end bracket and the second end bracket. At least one section comprises three sections comprising a first sealing element a second sealing element, and a third sealing element. The first sealing element has a first hardness, the second sealing element has a second hardness, the third sealing element has a hardness different than the second sealing element hardness. The second sealing element has a larger radius than the first sealing element.Type: ApplicationFiled: May 16, 2012Publication date: November 21, 2013Applicant: NISHIYAMA CORPORATION OF AMERICAInventors: Roger Maurice Aspen, Jack Allen Schreiner, HAJIME ISHII
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Patent number: 7383693Abstract: A cooling device includes a branch line with one end thereof communicating with a supplying line, and the other end communicating with a recovery line, wherein a part of the refrigerant supplied to the supplying line by a pump, flows as a branch; a heater installed in the middle of the branch line, for heating the refrigerant up to temperature higher than that for freezing moisture dissolving in the refrigerant; and a moisture adsorption filter installed in the middle of the branch line, through which the refrigerant heated by the heater passes, for adsorbing moisture mixed in the refrigerant.Type: GrantFiled: August 10, 2006Date of Patent: June 10, 2008Assignee: Nishiyama CorporationInventors: Masahiro Kawai, Yoji Fujino, Someyoshi Arai
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Publication number: 20070044504Abstract: A cooling device includes a branch line with one end thereof communicating with a supplying line, and the other end communicating with a recovery line, wherein a part of the refrigerant supplied to the supplying line by a pump, flows as a branch; a heater installed in the middle of the branch line, for heating the refrigerant up to temperature higher than that for freezing moisture dissolving in the refrigerant; and a moisture adsorption filter installed in the middle of the branch line, through which the refrigerant heated by the heater passes, for adsorbing moisture mixed in the refrigerant.Type: ApplicationFiled: August 10, 2006Publication date: March 1, 2007Applicant: Nishiyama CorporationInventors: Masahiro Kawai, Yoji Fujino, Someyoshi Arai
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Patent number: 6659361Abstract: The controller 70 of the brine supply device 10 performs the PID calculation of the manipulated variable MV of the valve 14, calculates the compensated manipulated variable MV′ by compensating the manipulated value MV, and controls the operation of the valve 14 based on the compensated manipulated variable MV′. The variation &Dgr;MV of the manipulated variable MV becomes proportional to the variation &Dgr;PV of the brine supply temperature Pt1 as the operation of the valve 14 is controlled with the compensated manipulated variable MV′. This makes it possible to control temperature with a high accuracy using only one set of PID constants.Type: GrantFiled: February 27, 2003Date of Patent: December 9, 2003Assignees: Nishiyama Corporation, Aquatech Co., Ltd.Inventors: Kuboyuki Sasayama, Kazuya Sato, Masahiro Kawai
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Patent number: 6554196Abstract: The controller 70 of the brine supply device 10 performs the PID calculation of the manipulated variable MV of the valve 14, calculates the compensated manipulated variable MV′ by compensating the manipulated value MV, and controls the operation of the valve 14 based on the compensated manipulated variable MV′. The variation &Dgr;MV of the manipulated variable MV becomes proportional to the variation &Dgr;PV of the brine supply temperature Pt1 as the operation of the valve 14 is controlled with the compensated manipulated variable MV′. This makes it possible to control temperature with a high accuracy using only one set of PID constants.Type: GrantFiled: April 30, 2001Date of Patent: April 29, 2003Assignees: Nishiyama Corporation, AQUAtech Co., Ltd.Inventors: Kuboyuki Sasayama, Kazuya Sato, Masahiro Kawai
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Patent number: D286908Type: GrantFiled: August 10, 1984Date of Patent: November 25, 1986Assignee: Nishiyama Corporation of AmericaInventors: Shigeo Mizuno, Masaki Takahashi
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Patent number: D288121Type: GrantFiled: May 25, 1984Date of Patent: February 3, 1987Assignee: Nishiyama CorporationInventors: Masaki Takahashi, Shigeo Mizuno