The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2016
Filed:
Nov. 30, 2011
Applicants:
Ryota Mashima, Otsu, JP;
Masahiro Kobayashi, Otsu, JP;
Ken Kashiwadani, Shiga, JP;
Inventors:
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 23/00 (2006.01); C03B 27/06 (2006.01); H01H 36/00 (2006.01); H01H 51/28 (2006.01);
U.S. Cl.
CPC ...
C03C 23/0025 (2013.01); C03B 27/06 (2013.01); C03B 27/065 (2013.01); H01H 36/0033 (2013.01); H01H 51/281 (2013.01); Y10T 428/131 (2015.01);
Abstract
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.