公开(公告)号：US5065809A

公开(公告)日：1991-11-19

申请号：US676318

申请日：1991-05-28

申请人： Takashi Sato ,  Yoji Iwanabe ,  Koji Arato ,  Rokuro Sakagami ,  Yasuo Yoneda

发明人： Takashi Sato ,  Yoji Iwanabe ,  Koji Arato ,  Rokuro Sakagami ,  Yasuo Yoneda

IPC分类号： B22D21/02 ,  B22D23/00 ,  B22D27/13

CPC分类号： B22D27/13

摘要： A method for producing a cast of titanium or a titanium-based alloy by fusing titanium or a titanium-based alloy containing an alloy element in a vacuum furnace while introducing argon gas therein and casting the resultant melt in mold, which method is characterized by adjusting the introduction of the argon gas so that the argon gas pressure (atm) in the furnace assumes the following magnitude proportionately to the alloy element content M (% by weight):Not less than 2.1 when 0.ltoreq.M

摘要翻译： 通过在真空炉中将含有合金元素的钛或钛基合金在其中引入氩气并将所得熔体浇注到模具中的同时将钛或钛基合金熔融在一起而制造钛或钛基合金铸造的方法，该方法的特征在于调节 引入氩气使得炉中的氩气压力（atm）与合金元素含量M（重量％）成比例地具有以下大小：当0≤M<5时不小于2.1不小于 1.6当5 <10时，当10≤M≤15时不小于1.5当15≤M时，不小于1.2。

公开(公告)号：US4753882A

公开(公告)日：1988-06-28

申请号：US891258

申请日：1986-07-28

申请人： Masachika Takashio ,  Yasuo Yoneda ,  Yutaka Mitani ,  Takahide Chikano ,  Minoru Kamimura

发明人： Masachika Takashio ,  Yasuo Yoneda ,  Yutaka Mitani ,  Takahide Chikano ,  Minoru Kamimura

IPC分类号： C12N9/80 ,  C12R1/07

CPC分类号： C12N9/80 ,  Y10S435/832

摘要： Different from conventional urease products, the urease of the present invention has excellent stability, and has a smaller Km value. The urease of this invention is produced microbiologically by a thermophilic microorganism belonging to the genus of Bacillus and especially named as Bacillus sp. TB-90 which is a novel species distinguishable from any of the microorganisms belonging to the genus of Bacillus.

摘要翻译： 与常规脲酶产物不同，本发明的脲酶具有优异的稳定性，并具有较小的Km值。 本发明的脲酶由属于芽孢杆菌属的嗜热微生物微生物产生，特别命名为芽孢杆菌属。 TB-90是与属于芽孢杆菌属的任何微生物区分开来的新颖物种。