Location History:
- Mobara, JP (2003 - 2012)
- Osaka, JP (2016)
Company Filing History:
3 out of 42,508 
3 out of 1,238 
3 out of 1,207 Years Active: 2003-2016
Title: The Innovative Journey of Keiichirou Ashizawa
Introduction
Keiichirou Ashizawa, hailing from Mobara, Japan, is a prominent inventor known for his contributions to liquid crystal display technology. With a commendable portfolio, consisting of nine patents, Ashizawa has made significant advancements in the field over his career.
Latest Patents
Among his recent innovations are two notable patents focusing on the development of liquid crystal display devices. The first patent describes a manufacturing method for a liquid crystal display device that incorporates a TFT substrate. This device utilizes a unique configuration where a common signal line is situated atop a common electrode, with a pixel electrode situated below that, separated by an insulating film. A significant aspect of this patent involves the application of laser irradiation to the metal piece in a pixel with a bright spot, which causes it to melt and short-circuit the common and pixel electrodes.
The second patent further addresses the liquid crystal display device, featuring a TFT substrate and a liquid crystal layer. A critical innovation within this patent is the inclusion of a color filter substrate, which consists of a light non-transmitting layer that manages light transmission effectively. The design incorporates a display region with color resist and a frame-shaped non-display region equipped with a strategically placed slit, enhancing the overall functionality of the display.
Career Highlights
Throughout his career, Keiichirou Ashizawa has made valuable contributions while working with reputable companies such as Hitachi, Ltd. and Panasonic Liquid Crystal Display Co., Ltd. His work at these organizations has greatly influenced the development and enhancement of liquid crystal technologies.
Collaborations
In pursuit of innovation, Ashizawa has collaborated with notable colleagues, including Hiroaki Iwato and Masafumi Hirata. These partnerships have fostered an environment for creative problem-solving and pioneering solutions in their respective fields.
Conclusion
Keiichirou Ashizawa's dedication to advancing liquid crystal display technology positions him as a significant figure in the realm of inventions. His nine patents reflect an ongoing commitment to innovation, paving the way for future technological advancements in the industry. His journey continues to inspire aspiring inventors and researchers alike.