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:
Jan. 04, 2005
Filed:
Dec. 10, 2002
Applicants:
Naoki Yamamoto, Chita-gun, JP;
Tooru Ooiwa, Toyota, JP;
Inventors:
Naoki Yamamoto, Chita-gun, JP;
Tooru Ooiwa, Toyota, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 720 ;
U.S. Cl.
CPC ...
Abstract
In an alternator, a voltage control device includes a control circuit IC chip, a radiating fin and a case. The radiating finhas a basethat is fixed to the IC chip and radiating portions. The radiating portions protrudes from the baseand have substantially U-shaped cross sections, so that tubular air passages are formed between the radiating portions and a fixed surface of the IC chip. Each radiating portion has a central trunk and alternating branches, thereby rows of air passages are formed by the central trunk and rows of branches.