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:
Jan. 18, 2005
Filed:
Jun. 04, 2002
Shigeru Kawahara, Kawasaki, JP;
Akihiro Kishishita, Kawasaki, JP;
Kazutaka Nagashima, Kawasaki, JP;
Tadashi Takemoto, Kawasaki, JP;
Shigeru Kawahara, Kawasaki, JP;
Akihiro Kishishita, Kawasaki, JP;
Kazutaka Nagashima, Kawasaki, JP;
Tadashi Takemoto, Kawasaki, JP;
Ajinomoto Co., Inc., Tokyo, JP;
Abstract
Disclosed in the present application are a method for preparing highly-stable A-type crystals by controlling and maintaining the product temperature of B-type N-(3,3-dimethylbutyl)-APM crystals at 25 to 80° C. under an absolute humidity of 0.203 kg/kg or less environment, thereby effecting crystal transition; and a method for preparing A-type crystals by controlling and maintaining the product temperature of D-type crystals of N-(3,3-dimethylbutyl)-APM at 25 to 80° C. under an absolute humidity of 0.0550 kg/kg or less environment, thereby effecting crystal transition. According to these crystal transition methods, highly stable crystals can be prepared stably and at a low cost.