Masao Totsuka is a prominent inventor based in Ohmiya, Japan. He has made significant contributions to the field of display technology, holding a total of 10 patents. His work primarily focuses on advancements in flat panel display devices and manufacturing techniques.

Latest Patents

One of Totsuka's latest patents is for a flat panel display device and its manufacturing process. This invention pertains to large-sized display devices, such as liquid crystal panel displays. The method involves photolithographically transferring a pattern for forming picture elements and a drive circuit onto the substrate in a step-and-repeat manner. Different masks are utilized to ensure high resolving power during the pattern transfer process. Another notable patent is for a projection exposure apparatus designed to project patterns from a reticle onto a wafer. This apparatus features an alignment system that enhances the accuracy of aligning the reticle and wafer, independent of any photoresist layer applied to the wafer surface.

Career Highlights

Masao Totsuka has dedicated his career to innovation in display technology. His work at Canon Kabushiki Kaisha has positioned him as a key figure in the development of advanced manufacturing techniques for display devices. His inventions have paved the way for improvements in display quality and manufacturing efficiency.

Collaborations

Totsuka has collaborated with notable coworkers, including Akiyoshi Suzuki and Hideki Ina. Their combined expertise has contributed to the success of various projects and innovations within the company.

Conclusion

Masao Totsuka's contributions to display technology through his patents and work at Canon Kabushiki Kaisha highlight his role as a leading inventor in the field. His innovative approaches continue to influence the development of advanced display devices.

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