Location History:
- Sakura, JP (1978 - 1987)
- Shisui, JP (1989)
- Chiba, JP (1989)
Company Filing History:
3 out of 1,805 
2 out of 522 
1 out of 5,290 
Years Active: 1978-1989
Title: Yasuyuki Sugawara: Innovator in Optical Fiber Technology
Introduction
Yasuyuki Sugawara is a prominent inventor based in Sakura, Japan. He has made significant contributions to the field of optical fiber technology, holding a total of 4 patents. His innovative designs have paved the way for advancements in telecommunications and sensing technologies.
Latest Patents
One of Sugawara's latest patents is an optical fiber cable that features a neutral axis defining a zero stress. This design includes a flexible pipe made of a plastics material, with a group of optical fibers loosely mounted within an axial bore. The cable is engineered to ensure that the optical fibers are not subjected to axial contraction or elongation when the cable is bent, thanks to the strategic placement of a reinforcing member made of a material with a higher Young's modulus.
Another notable patent is a water penetration-detecting apparatus that utilizes an optical fiber sensor. This apparatus includes a water-absorbent material that expands when it absorbs water, applying pressure to the optical fiber and causing it to bend. A detecting means is connected to the sensor to monitor this bending, providing a reliable method for detecting water penetration.
Career Highlights
Throughout his career, Yasuyuki Sugawara has worked with esteemed companies such as Fujikura Limited and Nippon Telegraph and Telephone Public Corporation. His work in these organizations has allowed him to develop and refine his innovative ideas in optical fiber technology.
Collaborations
Sugawara has collaborated with notable colleagues, including Hideo Suzuki and Toshiaki Kobayashi. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Yasuyuki Sugawara's contributions to optical fiber technology have had a lasting impact on the industry. His innovative patents and collaborations highlight his dedication to advancing telecommunications and sensing technologies.