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    • 11. 发明专利
    • Dielectric ceramic for high frequency, method for producing the same, and high frequency circuit element using the same
    • 用于高频率的电介质陶瓷,用于制造它们的方法和使用它的高频电路元件
    • JP2011162417A
    • 2011-08-25
    • JP2010029617
    • 2010-02-15
    • Ube Industries Ltd宇部興産株式会社
    • KONO TAKASHIYAMANAGA MASATAKAOKABE ATSUSHI
    • C04B35/20C04B35/00H01B3/12
    • PROBLEM TO BE SOLVED: To provide a dielectric ceramic for high frequency in which electrical properties in a high frequency region are excellent and production is facilitated, a method for producing the same, and a high frequency circuit element using the dielectric ceramic for high frequency as a constituting member and having excellent electrical properties.
      SOLUTION: The dielectric ceramic for high frequency comprises a main component expressed by compositional formula: a(Sn, Ti)O
      2 -bMg
      2 SiO
      4 -cMgTi
      2 O
      5 -dMgSiO
      3 ; wherein a, b, c and d are mol% and, a, b, c and d respectively lie within the ranges of 10≤a≤37, 34≤b≤82, 4≤c≤15 and 4≤d≤15, and a+b+c+d=100, and an additional component made of MgO, and in which the additional component is added by 0.5 to 2.0 pts.wt. to 100 pts.wt. of the main component. The high frequency circuit element uses the same as a constituting member.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种高频区域的电气特性优异且易于生产的高频电介质陶瓷及其制造方法以及使用电介质陶瓷的高频电路元件 高频作为构成元件,具有优异的电性能。 解决方案:用于高频率的电介质陶瓷包括由组成式表示的主要组分:a(Sn,Ti)O 2 SB SB-2 SBB -cMgTi 2 0 5 -dMgSiO 3 ; 其中a,b,c和d分别为mol%,a,b,c和d分别在10≤a≤37,34≤b≤82,4≤c≤15和4≤d≤15的范围内, 和a + b + c + d = 100,以及由MgO制成的附加组分,并且其中添加组分加入0.5至2.0重量份。 到100磅 的主要组成部分。 高频电路元件与构成部件相同。 版权所有(C)2011,JPO&INPIT
    • 16. 发明专利
    • Manufacturing method of high frequency forsterite porcelain from asbestos
    • 来自ASBESTOS的高频砷酸钙的制备方法
    • JP2009215144A
    • 2009-09-24
    • JP2008063497
    • 2008-03-13
    • Nagoya Institute Of Technology国立大学法人 名古屋工業大学
    • TAKEDA HAYAMIHASHIMOTO SHINOBUAIKAWA KENICHIRO
    • C04B35/20A62D3/36A62D101/41B09B3/00C01B33/22C04B35/00H01B3/12
    • PROBLEM TO BE SOLVED: To manufacture a high-frequency forsterite (Mg
      2 SiO
      4 ) porcelain by using an asbestos (chrysotile: Mg
      3 Si
      2 O
      5 (OH)
      4 ), that is, to manufacture a high quality forsterite by using a raw material obtained by removing impurities such as iron etc. from the asbestos by an acid treatment since the forsterite having a large Q×f value being a performance index of a high-frequency characteristic can not be obtained when the asbestos is used as it is as a raw material of the forsterite because the asbestos is a natural mineral and includes many impurities.
      SOLUTION: An impure iron can be simultaneously eluted with an Mg
      2+ ion by subjecting the asbestos (chrysotile: Mg
      3 Si
      2 O
      5 (OH)
      4 ) to a hydrochloric acid-treatment and a high purity amorphous SiO
      2 fiber can be manufactured. A forsterite powder can be manufactured by subjecting the SiO
      2 fiber and a reactive MgO to a solid phase reaction. A dense forsterite porcelain can be obtained by subjecting the obtained forsterite powder to electropulsing sintering and the Q×f value of the porcelain is more than 100,000 GHz.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:为了通过使用石棉(温石棉:Mg 3 S 3)制造高频镁橄榄石(Mg 2 SiO 4 )瓷器, 通过使用通过除去得到的原料制造高质量的镁橄榄石 通过酸处理从石棉中除去铁等杂质,因为当将石棉作为原料使用时,不能获得具有高Q值的高镁氧化物作为高频特性的性能指标的镁橄榄石 因为石棉是天然矿物,包括许多杂质。 解决方案:通过使石棉(温石棉:Mg 3 Si 2 )同时用Mg 2 + 可以制造盐酸处理和高纯度非晶SiO 2 SBB纤维。 镁橄榄石粉末可以通过使SiO 2 SB 2纤维和反应性MgO进行固相反应来制造。 通过使所得到的镁橄榄石粉末进行电脉冲烧结,并且瓷器的Q×f值大于100,000GHz,可以得到密实的镁橄榄石瓷。 版权所有(C)2009,JPO&INPIT
    • 18. 发明专利
    • Forsterite substrate
    • FORSTERITE基板
    • JP2007314395A
    • 2007-12-06
    • JP2006148006
    • 2006-05-29
    • Sumitomo Metal Electronics Devices Inc株式会社住友金属エレクトロデバイス
    • MINO KATSUJIYAMAGUCHI TEPPEI
    • C04B35/20
    • PROBLEM TO BE SOLVED: To provide an inexpensive forsterite substrate having high airtightness reliability in which a mark formed on the substrate itself by irradiation with laser has clear contrast with the surface of the substrate and is easily discriminated.
      SOLUTION: The forsterite substrate is obtained by adding water, a binder and a plasticizer into a forsterite raw material composition obtained by calcining a mixture (2MgO SiO
      2 ) having a ratio of magnesia to silica by mol of 2:1 then mixing a sintering agent and an inorganic coloring agent to develop a black color by sintering into the calcined mixture, drying and granulating the mixed slurry while pulverizing to form a granulated body and press forming and firing the granulated body. The inorganic coloring agent contained in the forsterite raw material composition comprises a simple substance of one kind of manganese oxide. In the forsterite substrate, it is preferable that the content of the inorganic coloring agent in the forsterite raw material composition is 3-20 wt.%.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种廉价的高密度可靠性的镁橄榄石基体,其中用激光照射形成在基板本身上的标记与基板的表面具有清晰的对比度,并且容易被鉴别。 解决方案:通过将镁,粘合剂和增塑剂加入通过煅烧具有氧化镁与二氧化硅的比例的混合物(2MgO SiO 2 SiO 2)获得的镁橄榄石原料组合物中获得镁橄榄石基体, 摩尔为2:1,然后混合烧结剂和无机着色剂,通过烧结到煅烧混合物中以形成黑色,在粉碎的同时将混合浆料干燥和造粒,形成粒状体并压制成形烧制该粒状体。 包含在镁橄榄石原料组合物中的无机着色剂包含一种氧化锰的单质。 在镁橄榄石基材中,镁橄榄石原料组合物中的无机着色剂的含量优选为3-20重量%。 版权所有(C)2008,JPO&INPIT