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:
Feb. 16, 2021
Filed:
Jan. 28, 2019
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Yukiko Abe, Kanagawa, JP;
Naoyuki Ueda, Kanagawa, JP;
Yuki Nakamura, Tokyo, JP;
Shinji Matsumoto, Tokyo, JP;
Yuji Sone, Kanagawa, JP;
Mikiko Takada, Kanagawa, JP;
Ryoichi Saotome, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/24 (2006.01); H01L 29/786 (2006.01); C01F 5/06 (2006.01); C01F 11/04 (2006.01); C01G 3/02 (2006.01); G09G 3/32 (2016.01); H01L 29/04 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 29/242 (2013.01); C01F 5/06 (2013.01); C01F 11/04 (2013.01); C01G 3/02 (2013.01); G09G 3/32 (2013.01); H01L 29/04 (2013.01); H01L 29/78693 (2013.01); C01P 2002/02 (2013.01); H01L 27/3244 (2013.01);
Abstract
A p-type oxide which is amorphous and is represented by the following compositional formula: xAO.yCuO where x denotes a proportion by mole of AO and y denotes a proportion by mole of CuO and x and y satisfy the following expressions: 0≤x<100 and x+y=100, and A is any one of Mg, Ca, Sr and Ba, or a mixture containing at least one selected from the group consisting of Mg, Ca, Sr and Ba.