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. 25, 2019
Filed:
Mar. 05, 2018
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute-shi, Aichi, JP;
Miho Hatanaka, Nagakute, JP;
Akihiko Suda, Nagakute, JP;
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, Aichi, JP;
Abstract
An oxygen storage/release material includes: a ceria-zirconia composite oxide porous body that has at least one ordered phase of a pyrochlore phase and a κ phase, and that has a central pore diameter of 70 nm to 1 μm as measured by a mercury penetration method, and in which a cumulative pore volume of pores that each have a pore diameter in the range of 0.5 times to 2 times the central pore diameter is 40% or more of the cumulative pore volume of pores that each have a pore diameter in the range of 10 nm to 10 μm as measured by the mercury penetration method.