Location History:
- Kanagawa, JP (2002 - 2009)
- Yokohama, JP (1999 - 2013)
Company Filing History:
48 out of 10,250 
1 out of 5,290 
Years Active: 1999-2013
Areas of Expertise:
Title: Toshiaki Okuno: Innovator in Optical Transmission Technologies
Introduction
Toshiaki Okuno, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of optical transmission. With an impressive portfolio of 48 patents, he is recognized for his innovative approaches to channel allocation methods and wavelength conversion in optical systems.
Latest Patents
Among Toshiaki Okuno's latest patents is a channel allocation method for multi-channel optical transmission, alongside an optical transmission system utilizing this method. This patent focuses on signal wavelengths of light components multiplexed at various sections of multiplexing stations located at the input end of an EDFA (Erbium-Doped Fiber Amplifier). The design ensures that the wavelength-dependent noise figure of the EDFA decreases successively with the input signals. This innovative approach minimizes fluctuations in the signal-to-noise ratio in the amplified light.
Another notable patent is for a wavelength converter that boasts a simple and cost-effective structure. This device generates converted light with a different wavelength from that of the input light. The design includes a pump light source to output pump light, an optical multiplexer to combine input light with the pump light, and a specially designed optical fiber that facilitates the nonlinear optical phenomenon necessary for generating converted light.
Career Highlights
Toshiaki Okuno's career has been marked by his tenure at renowned companies such as Sumitomo Electric Industries and Nippon Telegraph and Telephone Corporation. His work at these institutions has played a crucial role in advancing optical transmission technologies, leading to significant innovations in the industry.
Collaborations
Throughout his career, Toshiaki has collaborated with distinguished professionals like Masayuki Nishimura and Eisuke Sasaoka. These partnerships have enriched his work, bringing together diverse expertise to tackle complex challenges in optical technology.
Conclusion
Toshiaki Okuno's innovative work in optical transmission and wavelength conversion has positioned him as a leading inventor in the field. With 48 patents to his name and continued contributions through collaboration, he remains a pivotal figure driving advancements in optical communication technologies. His endeavors not only enhance technical understanding but also pave the way for new developments in telecommunications.