Location History:
- Tokyo, JP (1999 - 2004)
- Koriyama, JP (2005 - 2007)
Company Filing History:
6 out of 256 
2 out of 192 
1 out of 1 Years Active: 1999-2007
Title: Takao Ogawa: Innovator in Focal Plane Shutter Technology
Introduction
Takao Ogawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of camera technology, particularly in the development of focal plane shutter apparatuses. With a total of 9 patents to his name, Ogawa's innovations have enhanced the functionality and durability of digital cameras.
Latest Patents
One of Ogawa's latest patents is a focal plane shutter apparatus designed to improve the performance of digital cameras. This apparatus features a light shielding blade, a fitting pin attached to the blade, and an arm that is slidably engaged with the fitting pin to open or close the blade. The surface hardness of the fitting pin is higher than that of the arm, with specific hardness values ranging from Hv300 to 600 for the arm and Hv450 to 1000 for the fitting pin. Both components undergo chemical polishing treatment, and the fitting pin may be plated with materials such as nickel, chromium, palladium, or rhodium. This design minimizes the generation and accumulation of abrasion powder, thereby enhancing the longevity of the shutter mechanism.
Another notable patent by Ogawa involves a focal plane shutter that includes a light shielding shutter blade and a blade dowel attached to the shutter blade. Similar to his previous invention, the blade arm is engaged with the blade dowel to control the shutter's operation. The surface hardness specifications are consistent with his other patent, ensuring durability and efficiency in camera performance.
Career Highlights
Throughout his career, Takao Ogawa has worked with notable companies in the camera technology sector, including Nidec Copal Corporation and Copal Company Limited. His experience in these organizations has allowed him to refine his skills and contribute to advancements in shutter technology.
Collaborations
Ogawa has collaborated with esteemed colleagues such as Noribumi Tachihara and Shigemi Takahashi. Their combined expertise has fostered innovation in the field of camera mechanisms.
Conclusion
Takao Ogawa's contributions to focal plane shutter technology have significantly impacted the digital camera industry. His innovative designs and patents continue to influence the development of high-performance camera systems.
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.