The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2011
Filed:
Dec. 05, 2006
Hiroshi Nishimura, Kusatsu, JP;
Toru Nagasawa, Kusatsu, JP;
Haruhiko Matsushita, Kusatsu, JP;
Ryusuke Iwasaki, Kusatsu, JP;
Hiroshi Nishimura, Kusatsu, JP;
Toru Nagasawa, Kusatsu, JP;
Haruhiko Matsushita, Kusatsu, JP;
Ryusuke Iwasaki, Kusatsu, JP;
Canon Machinery Inc., Shiga, JP;
Abstract
The oxygen partial pressure control unit includes a gas purification section for purifying the gas having the oxygen partial pressure controlled within a range of from 0.2 to 10atm, and a tank for storing the purified gas produced by the gas purification section. The purified gas stored within the tank is supplied to the another unit. The oxygen partial pressure control unit includes a circulation circuit including the tank and the gas purification section. The gas filled in the tankis caused to circulate along the circulation circuit, and the purified gas produced by the gas purification section is stored in the tank.