Location History:
- Saitama, JP (2014)
- Tokorozawa, JP (2012 - 2015)
Company Filing History:
Years Active: 2012-2015
Title: Shigehiro Takashima: Innovator in Optical Technology
Introduction
Shigehiro Takashima is a prominent inventor based in Tokorozawa, Japan. He has made significant contributions to the field of optical technology, holding a total of 3 patents. His work focuses on advancements in optical receivers and transmission systems, showcasing his expertise in this specialized area.
Latest Patents
One of Takashima's latest patents involves an optical receiver designed for pattern synchronization. This innovation allows for the correct regeneration of received data in an optical signal subjected to quadrature phase modulation. The method enables quick signal conduction without the need for verifying duplicate combinations of bit shifting and pattern changing. A signal check circuit performs data verification of multiplexed data, while a control circuit manages bit shifting and pattern changing based on verification results, ensuring accurate data regeneration.
Another notable patent pertains to an optical output module, optical transceiver, and optical transmission system. This invention utilizes phase modulators that operate based on bias voltages, incorporating both modulation and pilot signals. A time-average power synchronous detection unit is employed to detect optical power at specific timing, allowing for precise control of the bias voltage to minimize differences in optical power.
Career Highlights
Throughout his career, Shigehiro Takashima has worked with notable companies in the optical technology sector, including Oclaro Japan, Inc. and Opnext Japan, Inc. His experience in these organizations has contributed to his development as a leading inventor in the field.
Collaborations
Takashima has collaborated with esteemed colleagues such as Kouji Takeguchi and Taichi Kogure. These partnerships have further enriched his work and innovations in optical technology.
Conclusion
Shigehiro Takashima's contributions to optical technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative approaches continue to influence advancements in optical systems and signal processing.