Company Filing History:
Years Active: 2020-2024
Title: Kenji Ishida: Innovator in Optics
Introduction
Kenji Ishida, based in Mitaka, Japan, is a notable inventor known for his contributions to optical technologies. With a total of two patents to his name, Ishida's innovations have had significant impacts in the field of zoom lenses and optical apparatus.
Latest Patents
His latest patents focus on the design and manufacturing of a zoom lens. The innovative design consists of five lens groups: a first lens group (G1) with positive refractive power, a second lens group (G2) with negative refractive power, a third lens group (G3) with positive refractive power, a fourth lens group (G4) with negative refractive power, and a fifth lens group (G5) with positive refractive power. These groups are arranged sequentially from the object, allowing for effective zooming by adjusting the distances between each lens group. Specifically, the first lens group (G1) is composed of three or more lenses, while the fourth (G4) and fifth (G5) lens groups consist of two or fewer lenses. The fifth lens group (G5) notably moves towards the image surface side when zooming from a wide-angle to a telephoto state, satisfying specific conditional expressions.
Career Highlights
Kenji Ishida is an esteemed member of Nikon Corporation, where he continues to push the boundaries of optical technology. His expertise in lens design and manufacturing processes has helped Nikon maintain its reputation as a leader in imaging technology.
Collaborations
Throughout his career, Ishida has collaborated with talented professionals such as Atsushi Suzuki and Saburo Masugi. These partnerships have enhanced the development process of their innovative optical solutions, contributing greatly to the advancements in the industry.
Conclusion
Kenji Ishida exemplifies the spirit of innovation, making notable strides in the realm of optics with his patents and collaborations. His work at Nikon Corporation demonstrates a profound commitment to enhancing the capabilities of optical instruments, marking him as a significant figure in his field.