Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CERAMIC HEATER AND GLOW PLUG
Document Type and Number:
WIPO Patent Application WO/2007/135773
Kind Code:
A1
Abstract:
Disclosed is a ceramic heater wherein defects such as cracks caused by thermal stress are prevented, while preventing corrosion due to a calcium component. Specifically disclosed is a ceramic heater obtained by embedding a heating body, which mainly contains at least one substance selected from silicides, nitrides and carbides of molybdenum and silicides, nitrides and carbides of tungsten, in a base mainly containing a silicon nitride. This ceramic heater is characterized in that the base contains 4-25% by mass of an rare earth element in terms of oxide, 1-8% by mass of a silicide of chromium in terms of silicide, and 0.02-1.0% by mass of an aluminum component in terms of aluminum nitride.

Inventors:
FUNAKI, Koji (14-18, Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
舟木浩ニ (〒25 愛知県名古屋市瑞穂区高辻町14番18号日本特殊陶業株式会社内 Aichi, 4678525, JP)
IKAI, Yoshihito (14-18, Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
猪飼良仁 (〒25 愛知県名古屋市瑞穂区高辻町14番18号日本特殊陶業株式会社内 Aichi, 4678525, JP)
SEKIGUCHI, Yutaka (14-18, Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
Application Number:
JP2007/000534
Publication Date:
November 29, 2007
Filing Date:
May 18, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NGK SPARK PLUG CO., LTD. (14-18, Takatsuji-cho Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
日本特殊陶業株式会社 (〒25 愛知県名古屋市瑞穂区高辻町14番18号 Aichi, 4678525, JP)
FUNAKI, Koji (14-18, Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
舟木浩ニ (〒25 愛知県名古屋市瑞穂区高辻町14番18号日本特殊陶業株式会社内 Aichi, 4678525, JP)
IKAI, Yoshihito (14-18, Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 4678525, JP)
猪飼良仁 (〒25 愛知県名古屋市瑞穂区高辻町14番18号日本特殊陶業株式会社内 Aichi, 4678525, JP)
International Classes:
H05B3/10; F23Q7/00; H05B3/48
Foreign References:
JPH06251862A
JPH1041052A
JP2005019246A
JPH1112040A
JPH1025162A
JP2735725B2
Other References:
See also references of EP 2107854A1
KAZUO YAMAZAKI THE RECOMMENDATIONS 1990 BY IUPAC NOMENCLATURE OF INORGANIC CHEMISTRY 26 March 1993,
Attorney, Agent or Firm:
FUKUMURA, Naoki (N. FUKUMURA & ASSOCIATES, 4th Floor Yoyogi Palace,21-10, Yoyogi 2-chome,,Shibuya-k, Tokyo 53, 1510053, JP)
Download PDF: