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:
Jul. 13, 1999
Filed:
Dec. 08, 1997
Takanobu Takihara, Shizouka-ken, JP;
Hitoshi Kinugasa, Shizouka-ken, JP;
Hitoshi Niino, Shizouka-ken, JP;
Yuko Sagesaka, Shizouka-ken, JP;
Toshio Kawasaki, Iwatsuki-shi, JP;
Nobuo Matsumoto, Shizouka-ken, JP;
Kenji Shimaoka, Shizouka-ken, JP;
Masami Sasame, Shizouka-ken, JP;
Takashi Yamamoto, Shizouka-ken, JP;
Ito En, Ltd., Tokyo, JP;
Abstract
Tea leaves are extracted in warm or hot water, and the obtained extract is contacted with a cation exchange resin ionically bonded to potassium ion. The potassium ion is ionically bonded to the cation exchange resin in advance. Divalent ions in the tea beverage are replaced with the potassium ions from the cation exchange resin. The electrical conductivity of the extract is controlled in this whole process. The natural flavor and quality of the tea are thereby maintained more certainly, since metal ions that cause muddiness or precipitation are effectively removed.