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. 03, 2012
Filed:
Apr. 06, 2009
Hitoshi Sato, Kanagawa, JP;
Hirohiko Hirasawa, Niigata, JP;
Roy B. Chung, Goleta, CA (US);
Steven P. Denbaars, Goleta, CA (US);
James S. Speck, Goleta, CA (US);
Shuji Nakamura, Santa Barbara, CA (US);
Hitoshi Sato, Kanagawa, JP;
Hirohiko Hirasawa, Niigata, JP;
Roy B. Chung, Goleta, CA (US);
Steven P. DenBaars, Goleta, CA (US);
James S. Speck, Goleta, CA (US);
Shuji Nakamura, Santa Barbara, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A yellow Light Emitting Diode (LED) with a peak emission wavelength in the range 560-580 nm is disclosed. The LED is grown on one or more III-nitride-based semipolar planes and an active layer of the LED is composed of indium (In) containing single or multi-quantum well structures. The LED quantum wells have a thickness in the range 2-7 nm. A multi-color LED or white LED comprised of at least one semipolar yellow LED is also disclosed.