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:
Jun. 22, 2004
Filed:
Feb. 06, 2002
Applicant:
Inventors:
Katsuyoshi Terakado, Urizura, JP;
Arata Kagiyama, Naka, JP;
Noboru Baba, Hitachiota, JP;
Shizuka Yamaguchi, Hitachinaka, JP;
Masahiro Souma, Hitachi, JP;
Shuichi Shimizu, Ooarai, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 5/100 ; B05B 1/00 ;
U.S. Cl.
CPC ...
F02M 5/100 ; B05B 1/00 ;
Abstract
In an electronic fuel injector used in a combustion system using gas fuel, the present invention suppresses wearing of worn portions to make control of stable supply of gas fuel possible by forming a surface reforming layer (nitrided layer etc.) having wear resistance on a surface of a structural material of worn portions of the electronic fuel injector.