Location History:
- Hachioji, JP (1982 - 1984)
- Hino, JP (1984 - 1989)
Company Filing History:
Years Active: 1982-1989
Title: The Innovations of Shozo Ishiyama
Introduction
Shozo Ishiyama is a notable inventor based in Hino, Japan. He has made significant contributions to the field of optical technology, particularly in the development of advanced zoom lens systems. With a total of six patents to his name, Ishiyama's work has had a lasting impact on the photography industry.
Latest Patents
Ishiyama's latest patents include innovative designs for zoom lens systems. One of his notable inventions is a focusing means for a zoom lens group. This invention allows for the focusing of a zoom lens system by moving a lens other than the foremost lens group. The advancing amount of the focusing lens varies according to the variation in focal length, even when focusing on an object at the same distance. This invention enables the use of a single movement amount curve for focusing, utilizing different portions of the curve based on the zoom amount.
Another significant patent is related to a new structure for a zoom lens system designed for still cameras. This compact system boasts a wide magnification-variable capability with a zoom ratio of about three times. By dividing a positive third lens group into two positive lens groups, Ishiyama has decreased the refractive power of each group while enhancing the effect of magnification variation. This innovative arrangement also allows for the correction of aberration, resulting in a more effective zoom lens system.
Career Highlights
Shozo Ishiyama has spent a significant portion of his career at Konishiroku Photo Industry Co., Ltd. His work has been instrumental in advancing optical technology, particularly in the realm of zoom lenses. His innovative designs have not only improved the functionality of cameras but have also contributed to the overall quality of photographic images.
Collaborations
Throughout his career, Ishiyama has collaborated with talented individuals such as Tadashi Kojima and Norikazu Arai. These collaborations have fostered a creative environment that has led to the development of groundbreaking optical technologies.
Conclusion
Shozo Ishiyama's contributions to the field of optical technology, particularly in zoom lens systems, have established him as a prominent inventor. His innovative patents continue to influence the photography industry, showcasing his dedication to advancing optical design.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.