发明名称 |
Reed switch glass tube |
摘要 |
A reed switch glass tube is capable of preventing, for example, chipping and cracking of end parts thereof by forming a compressive stress layer having a length (A) from an end face within a range of 0.1 mm to 0.6 mm on an outer circumference surface of the end part of the glass tube. |
申请公布号 |
US9458057(B2) |
申请公布日期 |
2016.10.04 |
申请号 |
US201113979391 |
申请日期 |
2011.11.30 |
申请人 |
NIPPON ELECTRIC GLASS CO., LTD. |
发明人 |
Mashima Ryota;Kobayashi Masahiro;Kashiwadani Ken |
分类号 |
C03C23/00;C03B27/06;H01H36/00;H01H51/28 |
主分类号 |
C03C23/00 |
代理机构 |
Global IP Counselors, LLP |
代理人 |
Global IP Counselors, LLP |
主权项 |
1. A reed switch glass tube comprising:
opposite end parts, each having a respective compressive stress layer formed on an outer circumference surface of the glass tube, the compressive stress layer having a length of 0.1 mm to 0.6 mm in a longitudinal direction; and a portion without any compressive stress layer existing between the respective compressive stress layers at the opposite end parts. |
地址 |
Shiga JP |