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:
Apr. 30, 2024
Filed:
Dec. 17, 2021
Ngk Insulators, Ltd., Nagoya, JP;
Masahiro Tokuda, Kasugai, JP;
Takashi Noro, Nagoya, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
A method for producing a honeycomb structure includes: a forming step of extruding a forming raw material containing a ceramic raw material mainly based on silicon carbide and metal silicon to obtain a honeycomb formed body, the honeycomb formed body comprising: an outer peripheral wall; and partition walls; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The drying step includes: a first drying step of subjecting the honeycomb formed body to dielectric drying at a frequency of from 2 to 200 MHz so that a moisture scattering rate of the honeycomb formed body after dielectric drying is from 30 to 85%; and a second drying step of subjecting the honeycomb formed body having the moisture scattering rate of from 30 to 85% to hot air drying.