首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Silicon nitride powder and process for its preparation
摘要
A description is given of a silicon nitride powder which is adjusted in such a way that it has an oxygen content converted into the SiO2 content of from 4.5 to 7.5% by mass.
申请公布号
DE3744692(C2)
申请公布日期
1995.03.09
申请号
DE19873744692
申请日期
1987.03.20
申请人
NGK INSULATORS, LTD., NAGOYA, AICHI, JP
发明人
SHIRAI, MASAHIRO, NAGOYA, AICHI, JP;TAKAHASHI, TOMONORI, CHITA, AICHI, JP
分类号
C04B35/584;(IPC1-7):C01B21/068;C04B35/58
主分类号
C04B35/584
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Iris imaging using reflection from the eye
Variable external interface circuitry on programmable logic device integrated circuits
Living being presence detection system
Switching device for a pixel electrode and methods for fabricating the same
Fabrication of low leakage-current backside illuminated photodiodes
Inkjet unit cell with dual heater elements
Deposition methods for barrier and tungsten materials
Elliptical sealing surface for butterfly valve
Method of fabricating semiconductor device including removing impurities from silicon nitride layer
Pressure sensor system
Needle assembly for gas-assisted injection moulding
Air-curtain forming apparatus for wafer hermetic container in semiconductor-fabrication equipment of minienvironment system
Method, system and computer software product for specific identification of reaction pairs associated by specific neutral differences
Headpiece for fueling systems
System and method for playing a game of skill
Superplastically forming of friction welded structural assemblies
Soft anticholinergic zwitterions
D-xylopyranosyl-phenyl-substituted cycles, medicaments containing such compounds, their use and process for their manufacture
Image correction systems and methods thereof
Adaptive bandwidth throttling for network services