Search Results - "Ohsato, H"

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    Thermoplastic Laminate and Cordierite/Indialite Glass-Ceramic Hybrid Package for 15-GHz Operated Antennas by Myllymaki, S., Sonkki, M., Kokkonen, M., Ghavidel, A., Ohsato, H., Jantunen, H.

    “…This work describes a novel antenna package, a combination of a four-element array and a lens antenna performing the gain of 13.5 dBi, the bandwidth of 1 GHz…”
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    Journal Article
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    Origin of improvement of Q based on high symmetry accompanying Si–Al disordering in cordierite millimeter-wave ceramics by Ohsato, H., Kagomiya, I., Terada, M., Kakimoto, K.

    “…Cordierite (Mg 2Al 4Si 5O 18) is a candidate for millimetre-wave dielectrics because of the low dielectric constant ɛ r of 6.19. This study has been focused on…”
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    Journal Article
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    Microwave dielectric properties and crystal structure of homologous compounds ALa4Ti4O15 (A = Ba, Sr and Ca) for base station applications by TOHDO, Y, KAKIMOTO, K, OHSATO, H, YAMADA, H, OKAWA, T

    “…Homologous compounds ALa4Ti4O15 (A = Ba, Sr and Ca) with high dielectric constant epsilonr and quality factor Qxf are candidate materials for dielectric…”
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    Conference Proceeding Journal Article
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    Effects of TiO2 on sinterability and dielectric properties of high-Q forsterite ceramics by TSUNOOKA, T, ANDROU, M, HIGASHIDA, Y, SUGIURA, H, OHSATO, H

    “…High-Q plain forsterite ceramics with QDTf =240,000 GHz were developed by the usual solid sintering process using raw materials of highly purified MgO and…”
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    Conference Proceeding Journal Article
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    Microwave Dielectric Properties of YAG Ceramics by Kagomiya, I., Matsuda, Y., Kakimoto, K., Ohsato, H.

    Published in Ferroelectrics (30-09-2009)
    “…This study has focused on relation between the sintering condition and microwave dielectric properties for YAG ceramics. Both dielectric constant (ϵ r ) and…”
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    Journal Article Conference Proceeding
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    Large Q factor variation within dense, highly ordered Ba(Zn1/3Ta2/3)O3 system by KOGA, E, YAMAGISHI, Y, MORIWAKE, H, KAKIMOTO, K, OHSATO, H

    “…The large amount of Q factor variation within the dense, highly ordered region of the Ba(Zn1/3Ta2/3)O3 (BZT) system was studied by crystal structure analysis,…”
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    Conference Proceeding Journal Article
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    Microwave dielectric properties of BaxLa4Ti3+xO12+3x (x = 0.0-1.0) ceramics by YAMADA, H, OKAWA, T, TOHDO, Y, OHSATO, H

    “…The phase relations and microwave dielectric properties of BaxLa4Ti3+xO12+3x ceramics in the range of x between 0.2 and 1.0 were studied. With the increase in…”
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    Conference Proceeding Journal Article
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    Mg2SiO4–TiO2 composite ceramics prepared using a liquid phase deposition process by Kagomiya, I., Sugihara, J., Kakimoto, K., Ohsato, H.

    Published in Journal of electroceramics (01-02-2009)
    “…Forsterite (Mg 2 SiO 4 ) indicates a high quality factor ( Q·f ) of 270,000 GHz and a low dielectric constant ɛ r of 6.8, which are applicable for microwave…”
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    Journal Article
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    Sintering conditions of cordierite for microwave/millimeterwave dielectrics by Ohsato, H., Terada, M., Kagomiya, I., Kawamura, K., Kakimoto, K.-i., Eung Soo Kim

    “…With the advent of ubiquitous age, the high- quality, dielectric materials have been required for the applications of wireless communications available to…”
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    Journal Article
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    Order-disorder transition and its effect on microwave quality factor Q in Ba(Zn1/3Nb2/3)O3 system by KOGA, E, YAMAGISHI, Y, MORIWAKE, H, KAKIMOTO, K, OHSATO, H

    Published in Journal of electroceramics (01-12-2006)
    “…Issue Title: Special Issue: ICE-2005 International Conference on Electroceramics Influences of composition deviation from stoichiometry and heat treatment on…”
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    Conference Proceeding Journal Article
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    Microstructure and microwave dielectric properties of BaLa4Ti4O15 ceramics with template particles by FUKAMI, Y, WADA, K, KAKIMOTO, K, OHSATO, H

    “…BaLa4Ti4O15 (BLT) ceramic has excellent microwave dielectric properties with high dielectric constant (epsilonr) and high quality factor (Qxf). However, BLT…”
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    Conference Proceeding Journal Article
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    Structure and magnetic properties of high coercive NdFeB films with a perpendicular anisotropy by Serrona, L. K. E. B., Sugimura, A., Adachi, N., Okuda, T., Ohsato, H., Sakamoto, I., Nakanishi, A., Motokawa, M., Ping, D. H., Hono, K.

    Published in Applied physics letters (17-03-2003)
    “…Relatively good hard magnetic properties obtained from Nd2Fe14B films prepared by the rf sputtering technique were investigated in terms of the microstructural…”
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    Journal Article
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    Site occupancy of Bi ions and microwave dielectric properties in Bi-doped Ba6-3xR8+2xTi18O54 (R = rare earth, x = 2/3) solid solutions by OKAWA, T, IMAEDA, M, OHSATO, H, HARADA, A

    Published in Materials chemistry and physics (10-04-2003)
    “…The tungsten bronze-type like Ba6-3xR8+2xTi18O54 (R = rare earth) solid solutions, which have excellent microwave dielectric properties, have been investigated…”
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    Conference Proceeding Journal Article
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    Microwave dielectric properties of NaxNd(2-x)/3TiO3 solid solutions by Kagomiya, I., Yamada, Y., Kakimoto, K.-i., Ohsato, H.

    “…Na x Nd (2-x)/3 TiO 3 solid solutions possess tetragonal or orthorhombic perovskite structure, where the A-sites are characterized by 2 kinds of cations (Na +…”
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    Journal Article
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    Mechanism of the piezoelectricity of langasite based on the crystal structures by Iwataki, T, Ohsato, H, Tanaka, K, Morikoshi, H, Sato, J, Kawasaki, K

    “…Langasite family crystals ( R 3Ga 5SiO 14, R=rare earth) are expected as the new piezoelectric material for SAW filter. La 3Ga 5SiO 14 has the largest…”
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    Journal Article Conference Proceeding
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    Soft-chemical reaction of layered perovskite Na2Nd2Ti3O10 and its microwave dielectric properties by YAMADA, Y, WADA, K, KAGOMIYA, I, KAKIMOTO, K, OHSATO, H

    “…The mechanism of the soft-chemical reaction of Na2Nd2Ti3O10 was investigated in terms of the structure and composition. The Na0.21Nd0.60TiO3 was prepared by…”
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    Journal Article
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