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:
May. 09, 2023
Filed:
May. 18, 2021
Mii, Ltd., Osaka, JP;
Shuji Morimoto, Osaka, JP;
Makoto Takehara, Osaka, JP;
MII, LTD., Osaka, JP;
Abstract
Provided are a vacuum freeze-drying apparatus and a method capable of continuously performing vacuum freeze-drying in a short time. A vacuum freeze-drying apparatusof this invention having an exhaust path for performing vacuum suction, while a drying devicecomprises a tubular memberprovided an inlet portion and an outlet portion formed of a tubular shape, a temperature adjusting meanstoprovided in a plurality of regions formed from the inlet portion toward the outlet portion in a peripheral portion of the tubular memberwherein the plurality of regions are at least three or more regions whose temperature is capable of being controlled, for adjusting temperatures of a plurality of regionstoin outer surface of the tubular member, a temperature control unitfor independently controlling the temperature adjusting means, and a rotating portionfor rotating the tubular member, wherein the tubular memberhas a spiral transfer meanscontinuously provided adjacent to an inner wall of the tubular member from the inlet portion toward the outlet portion, and the transfer meanstransfers the frozen substance sequentially to locations corresponding to the plurality of regions in the tubular member so as to continuously sublimate and dry.