Location History:
- Kumamoto, JP (2005)
- Kikuchi-gun, JP (2003 - 2006)
Company Filing History:
3 out of 88 
1 out of 832,880 Years Active: 2003-2006
Title: Innovations of Hitoshi Koyama: Pioneering Liquid Crystal Display Technology
Introduction
Hitoshi Koyama, an accomplished inventor based in Kikuchi-gun, Japan, holds a significant portfolio with four patents to his name. His work primarily revolves around the development of advanced liquid crystal display (LCD) technologies, contributing to the enhancement of display quality and performance.
Latest Patents
Among his notable patents, Koyama's innovations include a groundbreaking liquid crystal display device and its manufacturing method. This invention features transistors positioned at the intersection of gate lines and source lines, enhancing pixel electrode connections. The patent emphasizes a design where pixel electrodes consist of a first and a second pixel electrode, with the second positioned above an insulating layer, ensuring effective electrical connections while minimizing overlap.
Another significant patent developed by Koyama pertains to a transflective liquid crystal display device that includes both transmissive and reflective components for each pixel. The innovation addresses the widths of the black matrix portions aligned with the transmissive and reflective sections, strategically designed to prevent mixed light interference. This advancement results in high-contrast displays, achieving ratio evaluations of 74 in reflective mode and 194 in transmissive mode, ensuring clarity without glare.
Career Highlights
Koyama has dedicated a considerable part of his career to enhancing display technologies, having worked with companies such as Advanced Display, Inc. His valuable contributions have propelled advancements in the field, particularly focusing on liquid crystal innovations.
Collaborations
Throughout his career, Koyama has collaborated with notable professionals, including Tetsuyuki Kurata and Tetsuya Satake. These partnerships have likely enriched his inventive processes, contributing to the development of his patented technologies.
Conclusion
Hitoshi Koyama's innovative spirit and dedication to the evolution of liquid crystal display technology have established him as a notable figure in the field. His patents not only showcase significant advancements in display devices but also reflect his commitment to enhancing user experiences through technology.