This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Sumitomo Electric Industries, Limited. Active years: 2002-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (2002 - 2003)
- Kanagawa, JP (2004)
Company Filing History:
Years Active: 2002-2004
Title: The Innovations of Shinjiro Hagihara
Introduction
Shinjiro Hagihara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical fiber technology. With a total of 3 patents to his name, his work focuses on enhancing the performance of optical fibers.
Latest Patents
Hagihara's latest patents include innovations related to optical fibers designed to have a large positive dispersion in the wavelength band of 1.55 µm. This design aims to compensate for the negative dispersion inherent in Non-Zero Dispersion Shifted Fiber (NZ-DSF) within the same wavelength band. The optical fiber features a depressed cladding structure that consists of a core region, an inner cladding with a lower refractive index, and an outer cladding with a higher refractive index. The relative refractive index difference of the core region with respect to the outer cladding is maintained between 0.30% and 0.50%. Additionally, the inner cladding's relative refractive index difference with respect to the outer cladding ranges from -0.50% to -0.02%. This optical fiber achieves a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 µm, along with an effective area of at least 70 µm at the same wavelength.
Career Highlights
Shinjiro Hagihara is currently employed at Sumitomo Electric Industries, Limited, where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of optical fibers, making them more efficient and effective for various applications.
Collaborations
Hagihara has collaborated with notable colleagues such as Takatoshi Kato and Kazuhiro Okamoto. Their combined expertise has contributed to the successful development of advanced optical fiber technologies.
Conclusion
Shinjiro Hagihara's contributions to optical fiber technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of the complexities involved in optical fiber design, paving the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile