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:
Jul. 12, 2005
Filed:
Jul. 13, 2004
Nobuyuki Otsuka, Kawanishi, JP;
Shigeo Yoshii, Hirakata, JP;
Masahiro Kitoh, Suita, JP;
Toshiya Yokogawa, Nara, JP;
Nobuyuki Otsuka, Kawanishi, JP;
Shigeo Yoshii, Hirakata, JP;
Masahiro Kitoh, Suita, JP;
Toshiya Yokogawa, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A vertical optical modulator comprising: a first semiconductor layer of a first conductivity type; a second semiconductor layer of a second conductivity type bonded to the first semiconductor layer; a third semiconductor layer of the second conductivity type; a dielectric layer formed between the second semiconductor layer and the third semiconductor layer; an antenna electrode having a plurality of conductive pieces which are formed within the dielectric layer so as to have a net-like shape as a whole, to be separated from one another at the intersections of the net-like shape, and to be in contact with both the second semiconductor layer and the third semiconductor layer; a first electrode electrically connected to the first semiconductor layer; and a second electrode electrically connected to the third semiconductor layer.