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:
Jun. 08, 2021
Filed:
Jan. 31, 2019
Applicant:
Hoya Corporation, Tokyo, JP;
Inventors:
Shinji Eda, Hung Yen Province, VN;
Kinobu Osakabe, Tokorozawa, JP;
Yoshitake Tanno, Akishima, JP;
Mikio Ikenishi, Akishima, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/32 (2006.01); G11B 5/73 (2006.01); G11B 17/038 (2006.01); G11B 33/12 (2006.01);
U.S. Cl.
CPC ...
G11B 17/32 (2013.01); G11B 5/73921 (2019.05); G11B 17/038 (2013.01); G11B 33/125 (2013.01);
Abstract
A glass material of a glass spacer has a surface resistivity of 10to 10(Ω/sq) at 22 (° C.). The surface resistivity of a surface of the glass material of the glass spacer at 22 (° C.) is lower than the surface resistivity of an inner portion of the glass material at 22 (° C.). The glass spacer contains at least one oxide selected from the group consisting of TiO, NbO, WO, and BiO, as a glass component.