Tatsuharu Yamamoto

Title: Innovations of Tatsuharu Yamamoto

Introduction

Tatsuharu Yamamoto is a notable inventor based in Ryugasaki, Japan. He has made significant contributions to the field of liquid crystal display technology. With a total of 2 patents, his work focuses on enhancing the efficiency and accuracy of substrate assembly processes.

Latest Patents

Yamamoto's latest patents include a substrate assembly apparatus and a substrate assembly method. The substrate assembly apparatus is designed for accurately bonding large substrates for liquid crystal displays. It features Z-axis drive mechanisms and upper and lower chambers. The Z-axis drive mechanisms are strategically placed at the four corners of a mount, allowing for precise vertical movement of the upper frame. The upper chamber, supported by the upper frame, contains an upper table, while the lower chamber houses a lower table and is supported on the mount. These chambers are united through a seal ring to create a vacuum chamber, which can be opened or closed by moving the upper frame. The lower table is supported by a free joint stage and can be moved horizontally by a side thrust mechanism located outside the vacuum chamber.

The manufacturing method of the liquid crystal display apparatus involves a unique substrate assembly process. One substrate is held in place by an attracting and adsorbing operation, along with an adhesive means within a pressurizing plate. The other substrate, which receives a liquid crystal agent, is supported on a table using similar methods. The pressure inside the chamber is reduced to a designated level, and once the substrates are in contact with the adhesive agent, the pressure is increased. This process allows for the substrates to be laminated while ensuring proper positioning. Finally, the adhesive means is retracted to remove the adhesive member from the substrate surface.

Career Highlights

Yamamoto has worked with prominent companies such as Hitachi Plant Technologies and Hitachi Industries. His experience in these organizations has contributed to his expertise in the field of substrate assembly technology.

Collaborations

Some of his notable coworkers include Hiroaki Imai and Masaaki Ito. Their collaboration has likely played a role in advancing the innovations within their projects.

Conclusion

Tatsuharu Yamamoto's contributions to the field of liquid crystal display technology through his patents and career experiences highlight his importance as an inventor. His innovative approaches to substrate assembly continue to influence the industry.