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Patent Searching and Data


Title:
PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/018222
Kind Code:
A1
Abstract:
A piezoelectric vibration device including a base for retaining of a piezoelectric vibration chip and a cap joined with the base for hermetic sealing of the piezoelectric vibration chip retained by the base. The junction region of the base with the cap is composed of at least a nickel cobalt layer consisting of nickel and cobalt and a metal layer superimposed on the nickel cobalt layer. The base and the cap are united together through fusion junction using a brazing filler metal.

Inventors:
MURAKAMI, Tatsuya (1389 Aza-Kono, Shinzaike, Hiraoka-cho, Kakogawa-sh, Hyogo 94, 6750194, JP)
村上 達也 (〒94 兵庫県加古川市平岡町新在家字鴻野1389番地 株式会社大真空内 Hyogo, 6750194, JP)
HIRAI, Masashi (1389 Aza-Kono, Shinzaike, Hiraoka-cho, Kakogawa-sh, Hyogo 94, 6750194, JP)
平井 政史 (〒94 兵庫県加古川市平岡町新在家字鴻野1389番地 株式会社大真空内 Hyogo, 6750194, JP)
Application Number:
JP2007/060713
Publication Date:
February 14, 2008
Filing Date:
May 25, 2007
Export Citation:
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Assignee:
DAISHINKU CORPORATION (1389, Aza-Kono Shinzaike, Hiraoka-cho, Kakogawa-sh, Hyogo 94, 6750194, JP)
株式会社大真空 (〒94 兵庫県加古川市平岡町新在家字鴻野1389番地 Hyogo, 6750194, JP)
MURAKAMI, Tatsuya (1389 Aza-Kono, Shinzaike, Hiraoka-cho, Kakogawa-sh, Hyogo 94, 6750194, JP)
村上 達也 (〒94 兵庫県加古川市平岡町新在家字鴻野1389番地 株式会社大真空内 Hyogo, 6750194, JP)
HIRAI, Masashi (1389 Aza-Kono, Shinzaike, Hiraoka-cho, Kakogawa-sh, Hyogo 94, 6750194, JP)
International Classes:
H03H9/02; H03H9/02
Attorney, Agent or Firm:
KURAUCHI, Giro (Sumitomoseimei Midosuji Bldg, 14-3 Nishitemma 4-chome,Kita-ku, Osaka-shi, Osaka 47, 5300047, JP)
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