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:
May. 07, 2019
Filed:
Jan. 25, 2013
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Takashi Iseki, Nagakute, JP;
Kazuyuki Nakanishi, Seto, JP;
Yasuhiro Ozawa, Nagakute, JP;
Naoki Ueda, Toyota, JP;
Masafumi Koizumi, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
An amorphous carbon film contains carbon as a main component, not more than 30 at. % of hydrogen, not more than 20 at. % of nitrogen and not more than 3 at. % of oxygen (all excluding 0 at. %), and when the total amount of the carbon is taken as 100 at. %, the amount of carbon having an sphybrid orbital is not less than 70 at. % and less than 100 at. %. Nitrogen and oxygen are concentrated on a surface side of the film and when detected from a surface layer by X-ray photoelectron spectroscopy, oxygen content ratio is not less than 4 at. % and not more than 15 at. % and nitrogen content ratio is not less than 10 at. % and not more than 30 at. %.