发明授权
- 专利标题： Dielectric ceramics
- 专利标题（中）： 电介质陶瓷
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申请号： US973601申请日： 1992-11-09
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公开(公告)号： US5246898A公开(公告)日： 1993-09-21
- 发明人: Takuya Fujimaru , Masamitsu Nishida , Koichi Kugimiya
- 申请人： Takuya Fujimaru , Masamitsu Nishida , Koichi Kugimiya
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX2-103491 19900419; JPX2-255792 19900925
- 主分类号： C04B35/495
- IPC分类号： C04B35/495 ; H01B3/12 ; H01L23/15
摘要：
High-frequency dielectric ceramics which contains the oxide of a complex perovskite structure as the main component, have a mean crystal gain size of sintered ceramic controlled to within the range of 5 .mu.m to 20 .mu.m and a porosity not exceeding 7% and provides high unloaded Q without requiring long-hour sintering or heat treatment.
公开/授权文献
- US4229140A Turbine blade 公开/授权日：1980-10-21