Company Filing History:
10 out of 13 
4 out of 84 
1 out of 2 Years Active: 1980-2004
Title: **Yoshiyuki Takematsu: A Pioneer in Camera Flash Technology**
Introduction
Yoshiyuki Takematsu is a distinguished inventor based in Tokyo, Japan. With a remarkable portfolio of 16 patents, he has made significant contributions to the field of photography, particularly in enhancing camera flash technology. His innovations have improved the way photographers capture images, especially in challenging conditions.
Latest Patents
One of Takematsu's latest patents pertains to the control of light emission from an externally attached flash lamp to digital cameras. This invention specifically addresses the challenges of underwater photography. The technology involves an outer flash lamp equipped with a light-receiving part that can function alongside an inner lamp, which is encased within a watertight housing. The inner lamp emits infrared light, which, when filtered correctly, can effectively activate the outer lamp, ensuring vivid and well-lit underwater shots. Additionally, another notable patent revolves around a photometric circuit within a photographic flash device. This circuit generates photometric signals by exposing it to reflected light, regulating the intensity of the emitted light from the flash tube. Both inventions showcase Takematsu's ingenious approach to improving photographic techniques through technology.
Career Highlights
Throughout his career, Yoshiyuki Takematsu has been associated with notable companies such as Fuji Koeki Corporation and Fuji Koeki Kabushiki Kaisha. His experiences with these organizations have significantly influenced his inventive processes, as he applied practical knowledge gained from industry standards to develop pioneering technologies.
Collaborations
While specific collaborative projects are not detailed, Takematsu's involvement with renowned companies in the photography industry suggests he has engaged with various teams and professionals in the field. These collaborations likely contributed to his breakthroughs in flash technology, reflective of the collective effort to enhance photographic equipment and techniques.
Conclusion
Yoshiyuki Takematsu continues to be a significant figure in the realm of photographic technology, particularly with his innovations in controlling flash emission. His patents not only highlight his inventive spirit but also demonstrate the practical application of technology in everyday photography. As the industry evolves, Takematsu's contributions are sure to influence future advancements in camera technology.