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Yasuhiro Hirayama

USPTO Granted Patents = 4

Average Co-Inventor Count = 4.4

ph-index = 3

Forward Citations = 121(Granted Patents)

Company Filing History:

3 out of 16,618

Semiconductor Energy Laboratory Co., Ltd.

3 out of 25,537

Sharp Kabushiki Kaisha Corporation

where one patent can have more than one assignee

Years Active: 2000-2007

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7268756 - Liquid crystal display device and method of driving a liquid crystal display device (2007-09-11),

2. 7193593 - Liquid crystal display device and method of driving a liquid crystal display device (2007-03-20),

3. 6975298 - Active matrix display device and driving method of the same (2005-12-13),

4. 6025817 - Liquid crystal display system using a digital-to-analog converter (2000-02-15),

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