Location History:
- Yokohama, JA (1977)
- Tokyo, JP (1980 - 1984)
- Fujisawa, JP (1985 - 1988)
Company Filing History:
Years Active: 1977-1988
Title: Yutaka Iizuka: Innovator in Optical Technology
Introduction
Yutaka Iizuka is a prominent inventor based in Tokyo, Japan, known for his significant contributions to optical technology. With a total of 13 patents to his name, Iizuka has made remarkable advancements in the field of lens design, particularly in zoom and telephoto lenses.
Latest Patents
Iizuka's latest patents include a zoom lens comprising two groups of lenses. This innovative design features a first diverging group of lenses and a second convergent group of lenses, which are movable along the optical axis to effect zooming. The first group consists of a negative meniscus lens, a negative lens, and a positive lens, while the second group includes a positive lens functioning as an achromatic lens, along with additional lenses to enhance performance. Another notable patent is the catadioptric telephoto lens, which incorporates a biconvex positive lens component, two reflecting members, and a negative lens group. This design effectively reflects and converges light, showcasing Iizuka's expertise in optical engineering.
Career Highlights
Iizuka is currently employed at Nippon Kogaku K.K., a leading company in the optical industry. His work has significantly impacted the development of advanced lens systems, making him a key figure in the field. His innovative designs have not only improved optical performance but have also paved the way for new applications in photography and imaging technology.
Collaborations
Throughout his career, Iizuka has collaborated with notable colleagues, including Yasutomo Seki and Toshio Akiyama. These partnerships have fostered a creative environment that has led to groundbreaking advancements in lens technology.
Conclusion
Yutaka Iizuka's contributions to optical technology through his patents and collaborations highlight his status as a leading inventor in the field. His innovative designs continue to influence the development of advanced optical systems, ensuring his legacy in the industry.