This inventor holds 30 USPTO granted patents and 2 EPO patents, primarily in Camera Technology. Top assignees: Asahi Kogaku Kogyo Kabushiki Kaisha, Hoya Corporation, Pentax Corporation. Active years: 1988-2015.
Company Filing History:
20 out of 3,132 
5 out of 2,565 
2 out of 1,056 
Years Active: 1988-2015
Areas of Expertise:
Title: Yutaka Ohsawa: Innovator in Camera Technology
Introduction
Yutaka Ohsawa is an esteemed inventor based in Tokyo, Japan. With a remarkable portfolio of 30 patents, Ohsawa's contributions to camera technology have significantly impacted the field. His innovative designs address various technical challenges, enhancing both the functionality and user-friendliness of photography equipment.
Latest Patents
Among his latest patents are two notable inventions that showcase his ingenuity. The first is a **diaphragm control apparatus of interchangeable lens camera**, which features a controller designed to optimize the lens' aperture. When the photography lens is attached and the camera body is powered off, the apparatus automatically moves to a minimum aperture, thereby protecting the internal components from sunlight damage. This invention streamlines the camera design by reducing the parts needed, showcasing Ohsawa's focus on efficiency.
The second invention, a **sequential shooting controller**, offers advanced features for various load requirements. It incorporates both high and low load drive modes, along with first and second power-voltage detectors. The controller enables optimal performance during image capturing by detecting voltage thresholds, adapting to the power demands of the device. This patent reflects Ohsawa's commitment to enhancing the performance of camera equipment under varying operational conditions.
Career Highlights
Throughout his career, Ohsawa has been associated with prominent companies in the optical industry, including Asahi Kogaku Kogyo Kabushiki Kaisha and Hoya Corporation. His work with these firms has positioned him as a key player in the development of innovative camera technologies.
Collaborations
Ohsawa has collaborated with notable individuals, including Satoshi Takami and Toshiaki Yamada. Their joint efforts have contributed to advancements in camera systems, further highlighting the importance of teamwork in the field of innovation.
Conclusion
Yutaka Ohsawa stands out as a pioneering inventor in the realm of camera technology. With his extensive patent portfolio and impactful collaborations, he continues to drive forward the boundaries of innovation in photography. His inventions not only enhance the user experience but also demonstrate a profound understanding of technical needs in modern photography equipment.