Tag Archives: barium

Process for preparing barium titanate powder for electronic function ceramic

Application Number  00129483 Application Date  2000.12.31 Publication Number  1392117 Publication Date  2003.01.22 Priority Information     International Classification  C04B35/468   Applicant(s) Name  Northwest China Polytechnic Univ.   Address     Inventor(s) Name  Su Lihong   Patent Agency Code  00000 Patent Agent   AbstractIn the preparation of barium titanate powder for electronic functional ceramic, water soluble… Read More »

Novel process for producing sodium hydrosulfide by utilizing by-products in production of barium salt

Application Number  00128500 Application Date  2000.11.21 Publication Number  1295971 Publication Date  2001.05.23 Priority Information     International Classification  C01B17/32;C01F11/26;C01F11/46   Applicant(s) Name  Wu Jikang   Address     Inventor(s) Name  Wu Jikang;Fan Zhanyin   Patent Agency Code  41102 Patent Agent  kang zhimin AbstractThe present invention is characterized by feeding sodium sulfide solution and hydrogen sulfide… Read More »

Process for preparing barium carboxylate by reaction of witherite on carboxylic acid

Application Number: 00113761Application Date: 2000.03.16Publication Number: 1271718Publication Date: 2000.11.01Priority Information: International: C07C51/41Applicant(s) Name: Xibei Univ.Address: Inventor(s) Name: Wu Shurong;Xiong Weimiao;Chang ZhuguoPatent Agency Code: 61202Patent Agent: li wenxiAbstract A process for preparing barium carboxylate is disclosed, which features use of natural witherite as barium source other than barium carbonate or barium hydroxide. Said process includes reaction… Read More »

Rareearth doped modified barium carbonate current rheological liquid and preparation process thereof

Application Number: 00113930Application Date: 2000.09.25Publication Number: 1345919Publication Date: 2002.04.24Priority Information: International: C10M113/08Applicant(s) Name: Xibei Polytechnical Univ.Address: Inventor(s) Name: Zhao Xiaopeng;Yin JianboPatent Agency Code: 00000Patent Agent: Abstract The present invention provides a current transformed liquid material and its preparation method, in particular, it relates to a kind of doped rare earth modified barium titanate anhydrous current… Read More »

Barium titanate semiconductor ceramic powder and stacked semiconductor device

Application Number: 00117677Application Date: 2000.05.22Publication Number: 1274932Publication Date: 2000.11.29Priority Information: 1999/5/20 JP 139781/99; 2000/2/23 JP 46122/00International: H01B3/12;C04B35/468;H01C7/02;H01C7/13Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Kawamoto MitsutoshiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A compact and low resistance laminated semiconductor ceramic device which is provided with a positive resistance-temperature characteristic and has a broad resistance-change range… Read More »

Direct carbon dioxide precipitation process of strontium carbonate or barium carbonate from neutral strontium or barium salt solution

Application Number: 00124604Application Date: 2000.09.26Publication Number: 1344679Publication Date: 2002.04.17Priority Information: International: B01D11/04;C01F11/18Applicant(s) Name: Inst. of Chemical Metallurgy, Chinese Academy of SciencesAddress: Inventor(s) Name: Zhu Tun;Xu XinPatent Agency Code: 00000Patent Agent: Abstract The present invention utilizes CO2 to deposit strontium carbonate or barium carbonate directly from neutral strontium and barium chloride, strontium and barium nitrate or… Read More »

Celestite or barite reducing process in solution to produce strontium carbonate or barium carbonate and sulfur element

Application Number: 00124605Application Date: 2000.09.26Publication Number: 1344680Publication Date: 2002.04.17Priority Information: International: C01B17/02;C01B17/027;C01F11/18Applicant(s) Name: Inst. of Chemical Metallurgy, Chinese Academy of SciencesAddress: Inventor(s) Name: Zhu TunPatent Agency Code: 00000Patent Agent: Abstract The present invention reduces celestite or barite with reductant in water solution to produce element sulfur while depositing strontium or barium to produce strontium carboante… Read More »

Aerogenic capsule for digestive canel barium meal contrast examination

Application Number: 00124863Application Date: 2000.09.20Publication Number: 1287861Publication Date: 2001.03.21Priority Information: International: A61K49/06;A61K49/18Applicant(s) Name: Wen YouxinAddress: Inventor(s) Name: Wen YouxinPatent Agency Code: 11227Patent Agent: song dongtaoAbstract The present invention relates to gas producing capsule for use in digestive tract barium meal radiograph examination. It is composed of capsule shell and gas producing powder in the shell.… Read More »

Process for preparing nm powder of barium tetratitanate

Application Number: 00126111Application Date: 2000.08.19Publication Number: 1338446Publication Date: 2002.03.06Priority Information: International: C01G23/00;C04B35/468;C04B35/624Applicant(s) Name: Harbin Polytechnical UnivAddress: Inventor(s) Name: Li Wenxu;Wang Fuping;Jiang ZhaohuaPatent Agency Code: 23200Patent Agent: li yiqunAbstract A nm-class sodium barium-tetratitanate powder is prepared from tetrabutyl titanate and barium acetate by sol-gel method. it can be used in electronic ceramic field.

Barium titanate transistor

Application Number: 00100367Application Date: 2000.01.19Publication Number: 1306309Publication Date: 2001.08.01Priority Information: International: H01L21/328;H01L29/12;H01L29/70Applicant(s) Name: Inst of Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Lu Huibin;Dai Shouyu;Chen FanPatent Agency Code: 00000Patent Agent: Abstract A titanate barium transistor is produced by making the laminated extension of adulteration of n-type, p-type titanate barium film together to form p-n junction,… Read More »

Mn-doped barium titanate material and its preparing process

Application Number: 00100058Application Date: 2000.01.03Publication Number: 1302781Publication Date: 2001.07.11Priority Information: International: C04B35/468;C04B35/622Applicant(s) Name: Inst of Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Lu Huibin;Dai Shouyu;Chen FanPatent Agency Code: 00000Patent Agent: Abstract A Mn-doped P-type barium titanate (BaMnxTi1-xO3) material in the form of block or film and its preparing process are disclosed. The Ba:Ti:Mn=1:(1-x):x, where x=0.005-0.5).… Read More »