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:
Mar. 17, 2026
Filed:
Mar. 20, 2023
Applicant:
Hidetoshi Kami, Chiba, JP;
Inventor:
Hidetoshi Kami, Chiba, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1/00 (2006.01); C01F 7/026 (2022.01); C09D 5/00 (2006.01); C09D 5/02 (2006.01);
U.S. Cl.
CPC ...
C09D 1/00 (2013.01); C01F 7/026 (2013.01); C09D 5/002 (2013.01); C09D 5/021 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01);
Abstract
An alumina powder satisfying the following expressions is provided: (Expression 1) 0.7T≤T≤1.3T; (Expression 2) 0.7T≤T≤1.3T; and (Expression 3) 0.7T≤T≤1.3T, where Trepresents a mean value of a peak height Tof a peak A in a particle size distribution of 0.3 μm or more to less than 1.2 μm, a peak height Tof a peak B in a particle size distribution of 0.7 μm or more to less than 3 μm, and a peak height Tof a peak C in a particle size distribution of 3 μm or more to less than 20 μm.
Quick Actions:
Kami, Hidetoshi. (2026). Alumina powder and method of producing the same, and stack and method of producing the same (U.S. Patent No. 12577405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12577405
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