Company Filing History:
Years Active: 1985-1995
Title: Akihiro Ooka: Innovator in Fiber-Optic Technology
Introduction
Akihiro Ooka is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of fiber-optic technology, holding a total of 5 patents. His innovative work focuses on improving the efficiency and cost-effectiveness of fiber-optic gyroscopes.
Latest Patents
One of Akihiro Ooka's latest patents is a fiber-optic gyroscope that obtains a signal from a perturbed light source. This invention addresses the limitations of conventional fiber-optic gyroscopes, which typically require an independent photodetector for detecting interfering beams. By eliminating the need for an independent photodetector, Ooka's design reduces the number of beam dividing-and-combining devices required, ultimately lowering the cost of gyroscopes. Instead, the light source itself or a monitoring photodiode detects the interfering beams through changes in driving current, applied voltage, or photocurrent.
Another notable patent is the optical fiber type polarizer. This invention consists of a first optical fiber made from a birefringent optical fiber wound at a specific radius, with its winding start and end fixed together by adhesive. The design includes short extra portions extending from the winding start and end, ensuring optimal performance. The optical fiber type polarizer also features a second and third optical fiber spliced to the short extra portions of the first optical fiber.
Career Highlights
Akihiro Ooka is currently employed at Sumitomo Electric Industries, Limited, where he continues to develop innovative solutions in fiber-optic technology. His work has significantly advanced the capabilities of gyroscopes and optical devices, making them more accessible and efficient.
Collaborations
Throughout his career, Ooka has collaborated with notable colleagues, including Yozo Nishiura and Takaki Iwashita. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.
Conclusion
Akihiro Ooka's contributions to fiber-optic technology exemplify the spirit of innovation. His patents not only enhance the functionality of existing technologies but also pave the way for future advancements in the industry.