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:
Jul. 13, 2021
Filed:
Mar. 06, 2019
Kohei Tsuzuki, Kanagawa, JP;
Takashi Mori, Kanagawa, JP;
Ryoji Okamoto, Kanagawa, JP;
Yuta Hiratsuka, Kanagawa, JP;
Kaname Morita, Kanagawa, JP;
Yohsuke Kobayashi, Kanagawa, JP;
Kohei Tsuzuki, Kanagawa, JP;
Takashi Mori, Kanagawa, JP;
Ryoji Okamoto, Kanagawa, JP;
Yuta Hiratsuka, Kanagawa, JP;
Kaname Morita, Kanagawa, JP;
Yohsuke Kobayashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A metal member includes a first layer and a second layer. The second layer has an average crystal grain size different from an average crystal grain size of the first layer. An intermediate layer having an average crystal grain size smaller than the average crystal grain sizes of the first layer and the second layer is interposed between the first layer and the second layer.