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1. 发明授权

US06881861B2 Method of purifying glutamic acid by transition recrystallization 失效
标题翻译：通过过渡重结晶纯化谷氨酸的方法
公开(公告)号：US06881861B2
公开(公告)日：2005-04-19
申请号：US10761253
申请日：2004-01-22
申请人： Yoshiki Saitou , Takayuki Koda , Hiroshi Ueda , Kazuhiro Sato
发明人： Yoshiki Saitou , Takayuki Koda , Hiroshi Ueda , Kazuhiro Sato
IPC分类号： C12P13/14 , C07C227/42 , C07C229/24 , C07C229/00 , C07C227/00
CPC分类号： C07C227/42 , C07C229/24
摘要： Disclosed herein is a method of purifying L-glutamic acid by transformation recrystallization which method comprises maintaining crude crystals of L-glutamic acid containing α crystals of L-glutamic acid in an aqueous solvent at a temperature of from 50° C. to the boiling point of said aqueous solvent in the coexistence of active carbon until about 30% or more of the crystals of L-glutamic acid have been transformed into β crystals thereof, the amount of said aqueous solvent being an amount not more than the amount sufficient (i.e., an amount insufficient) to form a saturated solution of said crystals of L-glutamic acid, according to which method purified crystals of L-glutamic acid can be obtained extremely rapidly and in high yields, and remarkably conveniently and easily on an industrial scale, as compared with the conventional transformation recrystallization method which is a hitherto common purification method of L-glutamic acid.
摘要翻译：本文公开了通过转化重结晶纯化L-谷氨酸的方法，该方法包括将含有L-谷氨酸的α晶体的L-谷氨酸的粗晶体在水溶剂中在50℃至沸点的所述水性溶剂在活性炭的共存下直至约30％以上的L-谷氨酸晶体转变为β晶体，所述水性溶剂的量不大于足够的量（即，不足量），形成所述L-谷氨酸晶体的饱和溶液，根据该方法可以非常快速且高产率地获得纯化的L-谷氨酸晶体，并且在工业规模上非常方便和容易地获得，如与常规的转化重结晶方法相比，该方法是迄今常见的L-谷氨酸纯化方法。

2. 发明授权

US07198943B2 Organic nitrogen-containing composition and fertilizer comprising the same 有权
标题翻译：有机含氮组合物和包含其的肥料
公开(公告)号：US07198943B2
公开(公告)日：2007-04-03
申请号：US10077745
申请日：2002-02-20
申请人： Takayuki Koda , Kazuhiro Sato
发明人： Takayuki Koda , Kazuhiro Sato
IPC分类号： C12N15/00 , C12P13/14 , C05F7/00 , C07H21/04
CPC分类号： C12P13/14 , C05F5/008 , C12N1/20 , Y02A40/212
摘要： An organic nitrogen-containing composition comprising fermentation mother liquor obtained by culturing a microorganism having L-glutamic acid-producing ability in a liquid medium of which pH is adjusted to a condition under which L-glutamic acid is allowed to be precipitated, to allow L-glutamic acid to be produced and accumulated with precipitation of L-glutamic acid accompanied, and then separating L-glutamic acid from the medium.
摘要翻译：一种含有发酵母液的有机含氮组合物，所述有机含氮组合物包含通过将pH调节至允许L-谷氨酸沉淀的条件的液体培养基中培养具有L-谷氨酸生产能力的微生物而获得的发酵母液，以允许L 伴随着L-谷氨酸的沉淀而生成和积累的γ-谷氨酸，然后从培养基中分离L-谷氨酸。

3. 发明授权

US07319025B2 Method for producing L-glutamic acid 有权
标题翻译： L-谷氨酸的制备方法
公开(公告)号：US07319025B2
公开(公告)日：2008-01-15
申请号：US10338915
申请日：2003-01-09
申请人： Hiroshi Ueda , Takayuki Koda , Masakazu Sato
发明人： Hiroshi Ueda , Takayuki Koda , Masakazu Sato
IPC分类号： G12P13/14
CPC分类号： C12N1/20 , C12P13/14
摘要： A method for producing L-glutamic acid by fermentation, which comprises culturing a microorganism having L-glutamic acid-producing ability in a liquid medium of which pH is adjusted to a condition under which L-glutamic acid produced by the microorganism is allowed to be precipitated, to allow L-glutamic acid to be produced and accumulated with precipitation of L-glutamic acid accompanied, wherein an operation causing existence of L-glutamic acid crystals in the medium is performed when a concentration of L-glutamic acid in the medium is lower than the concentration at which spontaneous crystallization occurs.
摘要翻译：一种通过发酵生产L-谷氨酸的方法，其包括在将pH调节至由微生物产生的L-谷氨酸的条件下调节为具有L-谷氨酸生产能力的微生物，使其变为伴随着L-谷氨酸的沉淀而生成和积累L-谷氨酸，其中当介质中的L-谷氨酸浓度为介质中时，进行介质中存在L-谷氨酸晶体的操作低于发生自发结晶的浓度。

4. 再颁专利

USRE41800E1 Method for producing l-glutamic acid 有权
标题翻译：生产L-谷氨酸的方法
公开(公告)号：USRE41800E1
公开(公告)日：2010-10-05
申请号：US12485550
申请日：2009-06-16
申请人： Hiroshi Ueda , Takayuki Koda , Masakazu Sato
发明人： Hiroshi Ueda , Takayuki Koda , Masakazu Sato
IPC分类号： G12P13/14
CPC分类号： C12N1/20 , C12P13/14
摘要： A method for producing L-glutamic acid by fermentation, which comprises culturing a microorganism having L-glutamic acid-producing ability in a liquid medium of which pH is adjusted to a condition under which L-glutamic acid produced by the microorganism is allowed to be precipitated, to allow L-glutamic acid to be produced and accumulated with precipitation of L-glutamic acid accompanied, wherein an operation causing existence of L-glutamic acid crystals in the medium is performed when a concentration of L-glutamic acid in the medium is lower than the concentration at which spontaneous crystallization occurs.
摘要翻译：一种通过发酵生产L-谷氨酸的方法，其包括在将pH调节至由微生物产生的L-谷氨酸的条件下调节为具有L-谷氨酸生产能力的微生物，使其变为伴随着L-谷氨酸的沉淀而生成和积累L-谷氨酸，其中当介质中的L-谷氨酸浓度为介质中时，进行介质中存在L-谷氨酸晶体的操作低于发生自发结晶的浓度。

5. 发明授权

US5955047A Process for producing alkali metal polyphosphates 有权
标题翻译：生产碱金属多磷酸盐的方法
公开(公告)号：US5955047A
公开(公告)日：1999-09-21
申请号：US129698
申请日：1998-08-05
申请人： Yasuko Yamada , Kazuhiko Mori , Takaaki Arashida , Takayuki Koda , Takeru Satou , Hisao Itoh
发明人： Yasuko Yamada , Kazuhiko Mori , Takaaki Arashida , Takayuki Koda , Takeru Satou , Hisao Itoh
IPC分类号： A23L1/304 , C01B25/39 , C01B25/41 , C01B25/42 , C01B25/445
CPC分类号： C01B25/425 , C01B25/41 , C01B25/412
摘要： A process for producing an alkali metal polyphosphate, comprising heating a solution comprising a solvent, alkali metal ions, phosphate ions, and 3 to 50% by weight of organic matter, wherein the solution contains, in total, 5 to 65% by weight of the alkali metal ions and the phosphate ions, and the ratio M/P is 1.0 to 3.0, wherein M is the number of moles of alkali metal ions in the solution and P is the number of moles of orthophosphate ions in the solution, at a temperature of 800.degree. to 1200.degree. C. in the presence of excess air, optionally after the solution is at least partially dried to solid, to produce the alkali metal polyphosphate.
摘要翻译：一种制备碱金属多磷酸盐的方法，包括加热包含溶剂，碱金属离子，磷酸根离子和3至50重量％有机物质的溶液，其中该溶液总共含有5至65重量％碱金属离子和磷酸根离子，M / P比为1.0〜3.0，其中M为溶液中碱金属离子的摩尔数，P为溶液中正磷酸根离子的摩尔数，任选在溶液至少部分地干燥至固体之后，在过量空气存在下，在800至1200℃的温度下，产生碱金属多磷酸盐。

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