Location History:
- Saitama, JP (1992 - 1993)
- Iruma, JP (1995)
Company Filing History:
Years Active: 1992-1995
Title: Innovations of Yoshiko Tezuka
Introduction
Yoshiko Tezuka is a prominent inventor based in Saitama, Japan. She has made significant contributions to the field of optics, particularly in the development of projection lens systems. With a total of 3 patents to her name, her work has had a substantial impact on semiconductor manufacturing processes.
Latest Patents
One of her latest inventions is a projection lens system designed for transferring circuit patterns from masks onto semiconductor wafers through projection photolithography. This innovative system achieves high resolving power of a few micrometers while maintaining wide exposure coverage. The design includes at least two sets of lens groups, each composed of lenses with concave surfaces facing each other. Additionally, it features at least one lens surface with positive refractive power situated between the two sets of lens groups, ensuring optimal performance.
Career Highlights
Yoshiko Tezuka has built a successful career at Olympus Optical Company, Ltd., where she has been instrumental in advancing optical technologies. Her expertise in lens design and photolithography has positioned her as a key figure in the industry.
Collaborations
Throughout her career, Yoshiko has collaborated with notable colleagues, including Takayoshi Togino and Keiichi Kuba. These partnerships have fostered innovation and contributed to the success of her projects.
Conclusion
Yoshiko Tezuka's contributions to optical technology, particularly in projection lens systems, highlight her role as a leading inventor in her field. Her work continues to influence advancements in semiconductor manufacturing and optics.