Location History:
- Kamifukuoka, JA (1976)
- Saitama, JA (1977)
- Ranzan, JP (1980 - 1984)
- Tokyo, JP (1985 - 2000)
Company Filing History:
38 out of 3,132 
1 out of 176 
1 out of 38 Years Active: 1976-2000
Areas of Expertise:
Title: **Keisuke Haraguchi: A Trailblazer in Camera Lens Technology**
Introduction
Keisuke Haraguchi, based in Tokyo, Japan, has made significant contributions to the field of camera lens technology. With an impressive portfolio of 41 patents, he stands out as an innovator in the design and mechanics of zoom lenses, particularly those utilized in lens shutter types of cameras.
Latest Patents
Among his most recent innovations are two noteworthy patents. The first patent details a zoom lens drive system for a lens shutter type of camera. This innovative system involves a motor that moves the lens along the optical axis, allowing the operator to control the focal length with ease. The control apparatus ensures that the lens reaches its final position in a predetermined direction, enhancing the precision and efficiency of the camera's operation.
The second patent focuses on a lens shutter type of camera that incorporates a zoom lens within a lens block. This design features a rotatable cam ring and sector gear that work in harmony with a movable finder optical assembly and strobe assembly. The zoom lens can be adjusted from an extreme telephoto position to a wide-angle position, as well as into a fully collapsed and macro photographing mode. This versatile design not only improves functionality but also optimizes the user's experience in different shooting scenarios.
Career Highlights
Keisuke Haraguchi has been associated with esteemed companies in the optical industry, notably, Asahi Kogaku Kogyo Kabushiki Kaisha and Asahi Kogaku Kogyo, K.K. His work in these organizations has cemented his reputation as a leading figure in camera technology. Over the years, his inventions have undergone rigorous testing and implementation, showcasing his dedication to advancing imaging technology.
Collaborations
Throughout his remarkable career, Haraguchi has collaborated with notable professionals in the field, including Shinsuke Kohmoto and Shigeru Kondoh. These collaborations have not only enriched his innovative journey but have also contributed to the advancement of optical engineering and design.
Conclusion
Keisuke Haraguchi's work exemplifies the spirit of innovation in the realm of camera technology. His patents underscore his commitment to enhancing user experience through improved lens mechanics. As the industry continues to evolve, Haraguchi's contributions will undoubtedly influence future advancements in imaging technologies.