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:
Oct. 20, 2009
Filed:
Jul. 17, 2008
Hirokazu Shiraki, Miyagi, JP;
Makoto Kobayashi, Miyagi, JP;
Katsumi Ikeda, Miyagi, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
An HCCD includes a channelthat transfers electric charges in an X direction, a channelthat transfers the electric charges in a Zdirection, a channelthat transfers the electric charges in a Zdirection, and a channelthat connects the channelsto the channel. The following relation is satisfied in impurity concentration of the channels: channelchannelchannel. A fixed DC voltage is applied to branch electrodesabove the channel. The channelhas protrusion portionsthat protrude inward from an outer circumference, which connects Tand T, and an outer circumference, which connects Tand T. The protrusion portionscauses charges below the transfer electrodeto move near the center of the channelin a Y direction. Thereby, the travel distance of the charges in the channelis reduced.