专利检索 ap:("HITACHI METALS, LTD.") AND inv:"Naoyuki Okamoto" 第 1 页

1.

发明授权
Sintered body for varistor, multilayer substrate using same, and production method for these 有权

公开(公告)号：US09741477B2

公开(公告)日：2017-08-22

申请号：US15101650

申请日：2014-12-05

申请人： HITACHI METALS, LTD.

发明人： Naoyuki Okamoto , Hiroyuki Ito , Toshiki Kida

IPC分类号： H05K1/03 , H01C7/112 , H01C17/065 , H01C17/30 , B32B18/00 , C04B35/453 , H05K1/02 , C04B35/64 , H01C1/14

CPC分类号： H01C7/112 , B32B18/00 , B32B2307/206 , B32B2457/00 , C04B35/453 , C04B35/64 , C04B2235/3215 , C04B2235/3224 , C04B2235/3241 , C04B2235/3262 , C04B2235/3263 , C04B2235/3275 , C04B2235/3277 , C04B2235/3284 , C04B2235/3298 , C04B2235/3409 , C04B2235/656 , C04B2235/72 , C04B2237/34 , C04B2237/62 , H01C1/14 , H01C17/06546 , H01C17/30 , H05K1/0254 , H05K2201/0738

摘要： To provide a zinc oxide-based varistor that exhibits adequate characteristics without using antimony. Disclosed is a sintered body for a varistor, including zinc oxide as a main component; 0.6 to 3.0 mol % of bismuth oxide in terms of bismuth (Bi); 0.2 to 1.4 mol % of cobalt oxide in terms of cobalt (Co); 0.1 to 1.5 mol % of chrome oxide in terms of chrome (Cr); and 0.1 to 1.5 mol % of manganese oxide in terms of manganese (Mn), wherein the contents of antimony (Sb), a rare earth element and tin (Sn) are not more than a level of impurities.