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:
Sep. 15, 2026
Filed:
May. 08, 2023
Yazaki Corporation, Tokyo, JP;
Irina Kalinina, Camarillo, CA (US);
Douglas Meyers, Los Angeles, CA (US);
Satyabrata Raychaudhuri, Thousand Oaks, CA (US);
YAZAKI CORPORATION, Tokyo, JP;
Abstract
The present invention provides an efficient and effective method to produce a graphene material by a high shear mechanical process to exfoliate a natural graphite dispersion in a solvent, followed by supercritical exfoliation and drying. The method exfoliates all graphitic flakes into mostly few-layer graphene flakes. This method is more efficient than traditional mechanical exfoliation techniques and completely avoids the need of multiple sampling/centrifugation cycles. The graphene flakes are generally uniform in both size (area) and thickness and show no clumping or aggregation. After drying, this graphene material has high dispersibility in a suitable solvent; the prepared graphene dispersion is stable for at least three months and shows no indication of settling or separation.