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Title:
ゲルマニウム含有高屈折率薄膜およびその製造方法
Document Type and Number:
Japanese Patent JP5651016
Kind Code:
B2
Abstract:
There is provided a high refractive-index coating film and a production method of the high refractive-index coating film. The production method comprises producing a coating film containing a germanium compound containing a Ge—Ge bond as a backbone thereof, and baking the coating film under vacuum or in an inert gas atmosphere. The high refractive-index coating film produced by the method is soluble in a solvent and has a high moldability and film-formation property, and has a high refractive index of 1.8 or more and further 2.3 or more, and is chemically stable.

Inventors:
渡辺 明
宮下 徳治
長澤 偉大
広岡 明
Application Number:
JP2010537790A
Publication Date:
January 07, 2015
Filing Date:
November 11, 2009
Export Citation:
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Assignee:
国立大学法人東北大学
日産化学工業株式会社
International Classes:
B05D7/24; B05D3/02; B32B7/02; C01G17/00; C08G79/00; G02B1/04; G02B6/12; G02B6/13
Domestic Patent References:
JP2009145872A2009-07-02
JP2009145872A2009-07-02
Other References:
JPN7014000584; Akira Watanabe, Shohei Tadenuma, Tokuji Miyashita: '"Control of Refractive Index of Double-Decker-Shaped Polysilsesquioxane Film' Journal of Photopolymer Science and Technology Vol.21, 2008, p.317-318
JPN7014000583; A. WATANABE, M. UNNO, F. HOJO, T. MIWA: '"Preparation of germanium thin film by a coating technique using a soluble organogermanium cluster a' Journal of Materials Science Letters Vol.20, 2001, p.491-493
JPN7014000584; Akira Watanabe, Shohei Tadenuma, Tokuji Miyashita: '"Control of Refractive Index of Double-Decker-Shaped Polysilsesquioxane Film' Journal of Photopolymer Science and Technology Vol.21, 2008, p.317-318
Attorney, Agent or Firm:
Sepal Tsuneo
Yoshio Miyazaki
Tsutomu Kato
Kyoko Koyama