专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4963495A Secretion of heterologous proteins 失效
标题翻译：异源蛋白的分泌
公开(公告)号：US4963495A
公开(公告)日：1990-10-16
申请号：US658342
申请日：1984-10-05
申请人： Chung N. Chang , Gregory L. Gray , Herbert L. Heyneker , Michael W. Rey
发明人： Chung N. Chang , Gregory L. Gray , Herbert L. Heyneker , Michael W. Rey
IPC分类号： C07K14/24 , C07K14/61 , C12N15/18 , C12N15/62 , C12N15/70
CPC分类号： C12N15/70 , C07K14/24 , C07K14/61 , C12N15/625 , C07K2319/02 , C07K2319/034 , C07K2319/75
摘要： Direct linkage of DNA encoding prokaryotic signals such as E. coli enterotoxin with DNA encoding mature eukaryotic proteins followed by transformation and culture of bacterial hosts characterized by a periplasmic space, yields substantial amounts of periplasmic mature protein.
摘要翻译：编码原核信号的DNA如大肠杆菌肠毒素与编码成熟真核生物蛋白的DNA直接连接，随后转化和培养以周质空间为特征的细菌宿主，产生大量的周质成熟蛋白。

2. 发明授权

US4799945A Dual freezing chamber system and method for water purification 失效
标题翻译：双冻室系统及净水方法
公开(公告)号：US4799945A
公开(公告)日：1989-01-24
申请号：US114232
申请日：1987-10-27
申请人： Chung N. Chang
发明人： Chung N. Chang
IPC分类号： C02F1/22 , B01D9/04
CPC分类号： C02F1/22
摘要： A water purification method and system, employing at least a first chamber and a second chamber to freeze a portion of a volume of impure water in the first chamber while melting ice in the second chamber. The unfrozen liquid, which has a high impurity concentration, is drained from the first chamber. The melted ice, from which up to 95% of the original impurities have been rejected during the freezing operation, is drained from the second chamber. Then, a new volume of impure water is supplied to the second chamber, and the process continues with the roles of the chambers reversed. The system includes at least one heat transfer fluid coil portion wrapped around (or disposed within) each chamber. The system requires no scraping or transporting of frozen ice, requires no chemical or cartridge replacement, and can be embodied in a small housing suitable for use as a home or restaurant appliance. The chamber dimensions and the duration of each freezing operation are optimized to maximize the rejection of impurities, given the freezing chamber temperature attainable by the heat transfer fluid coil and the desired system throughput rate.

3. 发明授权

US5010003A Use of yeast homologous signals to secrete heterologous proteins 失效
标题翻译：使用酵母同源信号分泌异源蛋白质
公开(公告)号：US5010003A
公开(公告)日：1991-04-23
申请号：US541186
申请日：1990-06-20
申请人： Chung N. Chang , Ronald A. Hitzeman , Mark D. Matteucci
发明人： Chung N. Chang , Ronald A. Hitzeman , Mark D. Matteucci
IPC分类号： C12N15/81
CPC分类号： C12N15/81
摘要： Described herein is the secretion from yeast of heterologous protein via a preprotein in which the heterologous protein is fused to the signal peptide of a yeast protein. The preprotein is processed by the cells to produce and secrete mature heterologous protein.
摘要翻译：本文描述的是异源蛋白质经酵母蛋白分泌，其中异源蛋白质与酵母蛋白质的信号肽融合。该蛋白由细胞处理以产生和分泌成熟的异源蛋白质。

4. 发明授权

US5583939A Secure, swift cryptographic key exchange 失效
标题翻译：安全，快速的加密密钥交换
公开(公告)号：US5583939A
公开(公告)日：1996-12-10
申请号：US460675
申请日：1995-06-01
申请人： Chung N. Chang , Chuan K. Yuan , Feng Q. Hao
发明人： Chung N. Chang , Chuan K. Yuan , Feng Q. Hao
IPC分类号： H04L9/08 , H04L9/00
CPC分类号： H04L9/0841
摘要： Using the present cryptographic key exchange protocol, a first of two cryptographic units selects quantities "A" and "B." That same unit then applies a mathematical function ".PHI..sub.1 " to A and B to compute a third quantity "C.". A and B and the function .PHI..sub.1 posses the property that knowing A or B, and C, and the function .PHI..sub.1, it is mathematically impossible to compute the unknown quantity B or A. The first unit then transmits A together C to the second unit while retaining B. The second unit selects a fourth quantity "D" and then applies a second mathematical function .PHI..sub.2 to A and D to compute a quantity "E" which the second unit transmits to the first unit while retaining D. The quantities A and D and the function .PHI..sub.2 must posses the property that knowing D and E, and the function .PHI..sub.2, it is mathematically impossible to compute the unknown quantity D. Then the second unit applies a third mathematical function ".PSI..sub.2 " to D and C to compute the secure key "K." The first unit upon receiving the quantity E then applies a fourth mathematical function .PSI..sub.1 to B and E to also compute the secure key K.
摘要翻译：使用本密码密钥交换协议，两个加密单元中的第一个选择数量“A”和“B.” 那个同一单元然后将数学函数“PHI 1”应用于A和B来计算第三数量“C.”。 A和B和函数PHI 1具有知道A或B和C的属性，以及函数PHI 1，在数学上不可能计算未知数量B或A.第一单元然后将A一起发送到第二个同时保持B.第二单元选择第四数量“D”，然后将第二数学函数PHI 2应用于A和D以计算第二单元在保留D的同时向第一单元发送的数量“E”。数量 A和D和函数PHI 2必须具有知道D和E的属性，以及函数PHI 2，在数学上不可能计算未知数量D.然后第二单元将第三数学函数“PSI 2”应用于D 和C来计算安全密钥“K.” 接收数量E的第一单元然后将第四数学函数PSI 1应用于B和E，以计算安全密钥K.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式