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. 01, 2020
Filed:
Jun. 07, 2018
Nakashima Sangyo Co., Ltd., Seto-shi, Aichi, JP;
Okuno Chemical Industries Co., Ltd., Osaka-shi, Osaka, JP;
Mikio Nakashima, Aichi, JP;
Takashi Kato, Osaka, JP;
Nakashima Sangyo Co., Ltd., Seto-shi, JP;
Okuno Chemical Industries Co., Ltd., Osaka-shi, JP;
Abstract
Provided are a black mixed oxide that contains chromium per se of any valency as a main component, and fails to contain cobalt as the main component material, and has a high safety, an excellent color tone and economical efficiency, and a method for producing the same, and various products using the black mixed oxide material. The mixed oxides comprise oxides containing La, Mn and Cu as main components but containing neither Cr nor Co as a main component, wherein the contents of La, Mn and Cu in the mixed oxides satisfy the following ratios, as oxide equivalent amount with respect to 100% by weight of the oxide equivalent amount: the La content as LaObeing 35-70 wt %; the Mn content as MnObeing 25-60 wt %; and the Cu content as CuO being 0.5-10 wt %.