Company Filing History:
3 out of 42,508 
3 out of 1,641 
2 out of 832,891 Years Active: 1996-2011
Title: Takehisa Yoshikawa: Innovator in Liquid Crystal Display Technology
Introduction
Takehisa Yoshikawa is a prominent inventor known for his contributions to the field of liquid crystal display (LCD) technology. He is based in Yokohama, Japan, and holds a total of six patents. His innovative work has significantly advanced the functionality and efficiency of LCDs, making them more versatile for various applications.
Latest Patents
Yoshikawa's latest patents include a method for producing apertures in a diffuse reflector layer that has a metal reflection film. This invention pertains to a transflective type liquid crystal display that features display side members and rear side members, which include a diffuse reflector layer with apertures and a glass substrate. The liquid crystal layer is interposed between these members, allowing for excellent visibility regardless of whether an external light or internal lighting source is used. Another notable patent involves a microlens array and a method for making a transfer master pattern for this array. This technology includes a concave and convex pattern that enhances light convergence, diffusion, and diffraction, thereby improving the overall performance of liquid crystal display devices.
Career Highlights
Throughout his career, Yoshikawa has worked with notable companies such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in display technology.
Collaborations
Yoshikawa has collaborated with esteemed colleagues, including Masato Taya and Yukio Maeda. These partnerships have fostered a creative environment that has led to significant innovations in the field.
Conclusion
Takehisa Yoshikawa's work in liquid crystal display technology exemplifies the impact of innovative thinking in the electronics industry. His patents and collaborations continue to influence the development of advanced display systems, ensuring that his contributions will be felt for years to come.