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:
Apr. 10, 2001
Filed:
Jul. 29, 1998
Kazuyuki Yoshimoto, Hiroshima-ken, JP;
Ryoji Abe, Higashi Hiroshima, JP;
Yukihiro Sugimoto, Higashi Hiroshima, JP;
Fuminori Ishimura, Higashi Hiroshima, JP;
Yukio Yamamoto, Hiroshima, JP;
Nobuyuki Oda, Hiroshima, JP;
Yukiyoshi Fukuda, Hiroshima, JP;
Toshio Miyatani, Hiroshima-ken, JP;
Hiroshi Kodama, Hiroshima, JP;
Akihiro Nakano, Kure, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The film boiling state of a refrigerant is maintained for a time longer than in the prior art by t to lower the nuclear boiling start temperature to a temperature at which the material proof strength of a work exceeds thermal stress, thereby lowering the cooling rate of the work. In addition, by controlling the cooling rate in hardening, the film boiling state of the refrigerant is maintained to a temperature at which the material proof strength exceeds thermal stress, thereby cooling the work at a temperature equal to or higher than the critical cooling rate of the work.