YI

Yoichi Igarashi

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HC Hitachi Device Engineering Co.: 2 patents #202 of 514Top 40%
HD Hitachi Displays: 2 patents #384 of 752Top 55%
📍 Mobara, JP: #231 of 731 inventorsTop 35%
Overall (All Time): #1,030,428 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7397456 Inspecting method and inspecting device of control signal for display device, and display unit having this inspecting function 2008-07-08
7391396 Display device and driving method thereof 2008-06-24
6515679 Driving method for a liquid crystal display device 2003-02-04
5838400 Liquid crystal display device with reduced frame portion surrounding display area Shiro Ueda, Shunichi Kumaoka, Masumi Sasuga, Katsuhiko Shibata, Naoto Kobayashi 1998-11-17
5739887 Liquid crystal display device with reduced frame portion surrounding display area Shiro Ueda, Shunichi Kumaoka, Masumi Sasuga, Katsuhiko Shibata, Naoto Kobayashi 1998-04-14