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Years Active: 2001-2016
Title: Hiroyuki Kawanaka: Innovator in Liquid Crystal Display Technology
Introduction
Hiroyuki Kawanaka is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of liquid crystal display (LCD) technology. With a total of 2 patents, Kawanaka's work has advanced the capabilities of display devices.
Latest Patents
Kawanaka's latest patents include a sophisticated LCD device that features a unique pixel structure. This device incorporates column data lines and row scanning lines, along with a display element. It utilizes a first switching unit for sampling frame data from an input video signal and a first holding unit configured as SRAM to hold sub-frame data. Additionally, a second switching unit applies output data to the pixel electrode, while a pixel control unit manages the writing and rewriting of memory content. The timing control unit ensures that a delay is applied to the operation of the second switching unit.
Another significant patent involves the manufacturing of langasite-type crystals. This process begins with a melt containing lanthanum oxide, tantalum oxide, and gallium oxide, mixed in a stoichiometric ratio. A crystal is then pulled from the melt using the Czochralski process in an atmosphere of argon and oxygen, with specific concentrations of each gas.
Career Highlights
Throughout his career, Kawanaka has worked with prominent companies such as Victor Company of Japan, Limited and JVC Kenwood Corporation. His experience in these organizations has contributed to his expertise in display technology and materials science.
Collaborations
Kawanaka has collaborated with notable colleagues, including Tsuguo Fukuda and Takayuki Iwasa. These partnerships have likely enriched his research and development efforts in the field.
Conclusion
Hiroyuki Kawanaka is a distinguished inventor whose work in liquid crystal display technology and crystal manufacturing has made a lasting impact. His innovative patents and collaborations reflect his commitment to advancing technology in his field.