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. 10, 2025
Filed:
Jan. 17, 2020
Ngk Spark Plug Co., Ltd., Nagoya, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Katsuya Kato, Nagoya, JP;
Fukue Nagata, Nagoya, JP;
Shinjiro Kasahara, Nagoya, JP;
Jun Otsuka, Nagoya, JP;
Yuki Hirobe, Nagoya, JP;
NITERRA CO., LTD., Nagoya, JP;
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo, JP;
Abstract
Porous zirconia particles exhibit high specificity to a protein to be immobilized thereto and are used in immobilization of the protein. The porous zirconia particles have a pore diameter D50, at which a ratio of a cumulative pore volume to a total pore volume is 50%, the pore diameter D50 being in a range of 3.20 nm or more and 6.50 nm or less; and a pore diameter D90, at which a ratio of a cumulative pore volume to a total pore volume is 90%, the pore diameter D90 being in a range of 10.50 nm or more and 100.00 nm or less. The total pore volume of the particles is greater than 0.10 cm/g. D50, D90, and the total pore volume are determined based on a pore diameter distribution measured through a BET method.