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. 10, 1989
Filed:
Dec. 24, 1986
Fumio Inaba, Sendai-shi, Miyagi-ken, JP;
Hiromasa Ito, Sendai-shi, Miyagi-ken, JP;
Noriaki Onodera, Sendai, JP;
Akira Mizuyoshi, Amagasaki, JP;
Mitsubishi Cable Industries, Ltd., , US;
Ricoh Company, Ltd., , US;
Ricoh Research Institute of General Electronics, , US;
Other;
Abstract
A semiconductor light emitting device, such as a light emitting diode or laser, includes a substrate which is provided with a hole and a pn junction extending adjacent to and in parallel with the side wall of the hole. Thus, the side wall of the hole extends in a direction perpendicular to a main surface of the substrate. A pair of electrodes is provided such that current flows across the pn junction so that light emitted in a vertical direction which is perpendicular to the main surface of the substrate. The hole may be either a through hole or a bore hole. With the additional provision of a pair of resonators, there is provided a semiconductor laser.