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:
Dec. 09, 2003
Filed:
Jun. 12, 2002
Takeshi Nagata, Otsu, JP;
Narutoshi Shimatani, Uji, JP;
Shingo Nakane, Otsu, JP;
Naohide Yamada, Muko, JP;
Nippon Electric Glass Co., Ltd., Otsu, JP;
Abstract
A top plate is provided for use in a cooking device having an induction heater alone or an infrared heater in addition, which comprises a transparent crystallized glass plate, a light-shading film on a bottom surface of the glass plate and an ornamental film formed on the top surface of the glass plate. The light-shading film is a porous layer of inorganic pigment powder dispersed in glass matrix. The light-shading film has small apertures at a portion corresponding to the infrared heater. Alternatively, it has a decreased thickness at the portion. In another alternative, a luster film is used in place of the inorganic pigment layer at the portion corresponding to the infrared heater.