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:
Aug. 31, 1999
Filed:
Mar. 03, 1998
Katsuya Kamimura, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
An LED head includes a circuit board and a plurality of LED arrays aligned on the circuit board in a longitudinal direction of the circuit board. Each of the plurality of LED arrays includes a row of a plurality of first LEDs aligned in the longitudinal direction between a second LED and a third LED. The second and third LEDs are at the end of the row. The first LEDs have a width W1 in the longitudinal direction and the second LED and the third LED have a width W2 in the longitudinal direction. The width W2 is smaller than a width W1. The first, second, and third LEDs have the same dimension D in a direction perpendicular to the longitudinal direction. The first, second, and, third LEDs are aligned at predetermined intervals P1 and the plurality of LED arrays are aligned such that the first, second, and third LEDs are aligned in the predetermined intervals P1.