This inventor holds 41 USPTO granted patents, primarily in Display Technology. Top assignees: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd., Renesas Technology Corp.. Active years: 1993-2019.
Location History:
- Yokohama, JP (1993 - 2013)
- Mobara, JP (2014 - 2015)
- Chiba, JP (2014 - 2016)
- Osaka, JP (2018)
- Hyogo, JP (2016 - 2019)
Company Filing History:
21 out of 1,238Â 
8 out of 1,207Â 
7 out of 3,781Â 
Years Active: 1993-2019
Areas of Expertise:
Title: Junichi Maruyama: Innovator in Liquid Crystal Display Technology
Introduction
Junichi Maruyama, based in Yokohama, Japan, is an accomplished inventor known for his significant contributions to the field of liquid crystal display (LCD) technology. With an impressive portfolio of 41 patents, Maruyama has made strides in enhancing display devices, making them more efficient and effective.
Latest Patents
One of Maruyama's latest innovations revolves around a sophisticated liquid crystal display device. This invention outlines a method for driving an LCD that includes a matrix of LCD pixels, a driver that selectively inputs drive signals to each pixel, and a controller that regulates the level and polarity of these signals. Furthermore, it features a memory that stores corrected charge voltage values, ensuring that each pixel receives an accurate drive signal throughout the horizontal period. This technology mitigates issues such as overshooting of driving voltage, especially when achieving the brightest gray scale levels, thereby preventing after-images on displays.
Another notable patent encompasses a display device that integrates control circuit substrates on the rear surface of a display panel. It comprises a control circuit generating control signals for data line and gate line driving circuits, as well as configurations for gate connecting wirings and substrate connecting wiring. The innovative arrangement ensures that the components do not overlap, optimizing functionality and design.
Career Highlights
Maruyama has held significant positions in renowned companies, including Panasonic Liquid Crystal Display Co., Ltd. and Hitachi Displays, Ltd. His work in these organizations has been pivotal in advancing LCD technology, which is the backbone of modern display screens.
Collaborations
Throughout his career, Maruyama has collaborated with esteemed colleagues, including Yoshihisa Ooishi and Motoyasu Tsunoda. These partnerships have fostered an environment of innovation, allowing for groundbreaking advancements in technology.
Conclusion
Junichi Maruyama's commitment to innovation in liquid crystal display technology is evident through his numerous patents and collaborations. His contributions continue to shape the future of display devices, reflecting the relentless pursuit of excellence in the realm of electronics.