This inventor holds 28 USPTO granted patents and 7 published patent applications and 2 EPO patents, primarily in Wavelength Conversion. Top assignees: Nippon Telegraph and Telephone Corporation, Mitsubishi Heavy Industries Limited, Ntt Electronics Corporation. Active years: 2003-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Zama, JP (2004 - 2010)
- Atsugi, JP (2011)
- Tokyo, JP (2003 - 2018)
- Musashino, JP (2022 - 2024)
Company Filing History:
28 out of 5,300 
2 out of 4,741 
1 out of 164 Years Active: 2003-2025
Areas of Expertise:
Title: Osamu Tadanaga: Innovator in Optical Technologies
Introduction
Osamu Tadanaga, based in Zama, Japan, is a prolific inventor known for his impactful contributions to optical technologies. With a remarkable portfolio of 26 patents, Tadanaga has demonstrated his expertise and creativity in the field, focusing mainly on wavelength conversion and optical amplification technologies.
Latest Patents
Tadanaga's recent innovations include a groundbreaking wavelength converter designed to stabilize output light intensity in optical systems. This invention features a unique mounting structure that uses materials with lower refractive indices for signal light, which minimizes variations in light coupling efficiency to a light waveguide core. Furthermore, the design incorporates a robust support structure to manage thermal stress and elastic deformation, ensuring consistent performance.
Another significant patent is his optical amplifier, which integrates a Raman amplification unit and a parametric amplification unit that utilizes a second-order nonlinear element, specifically a periodically-poled lithium niobate (PPLN) waveguide. This innovative amplifier generates second harmonic lights from a fundamental wave light, enhancing the phase matching curve in a wide band during the difference frequency generation process. The coherent design allows for compensation of conversion efficiency losses, demonstrating Tadanaga's advanced understanding of optical dynamics.
Career Highlights
Throughout his career, Osamu Tadanaga has worked with renowned companies such as Nippon Telegraph and Telephone Corporation and Mitsubishi Heavy Industries Limited. His tenure in these organizations has significantly contributed to his development as a proficient inventor and innovator in cutting-edge technology.
Collaborations
Tadanaga has collaborated with esteemed colleagues in his field, including Takeshi Umeki and Takahiro Kashiwazaki. Their combined expertise has played a crucial role in advancing optical technologies, resulting in innovative solutions that have furthered the industry's progress.
Conclusion
In conclusion, Osamu Tadanaga stands out as a significant figure in the field of optical technologies, with a commendable record of patents and collaborations. His latest inventions, including the wavelength converter and optical amplifier, demonstrate his commitment to innovation and his ability to tackle complex challenges in modern technology. As he continues to develop new ideas and solutions, Tadanaga remains a key contributor to the field, inspiring future generations of inventors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile