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. 15, 2005
Filed:
Jun. 07, 2000
Katsumi Suzuki, Kakegawa, JP;
Noriyuki Nakajima, Ogasa-gun, JP;
Yoshio Ohba, Fukuroi, JP;
Takahiro Ono, Ogasa-gun, JP;
Katsumi Suzuki, Kakegawa, JP;
Noriyuki Nakajima, Ogasa-gun, JP;
Yoshio Ohba, Fukuroi, JP;
Takahiro Ono, Ogasa-gun, JP;
Asahi Tec Corporation, , JP;
Abstract
A non-austemper-treated spheroidal graphite cast iron obtainable without being subjected to an austemper treatment. The non-austemper-treated spheroidal graphite cast iron has a tensile strength of 650-850 MPa and an elongation of 7.0-14.5%. In the non-austemper-treated spheroidal graphite cast iron, V-notch material has a fatigue limit of 290 MPa or more. The non-austemper-treated spheroidal graphite cast iron has well-balanced mechanical properties both in tensile strength and elongation and improved tensile strength and elongation than conventional one.