This inventor holds 16 USPTO granted patents and 7 published patent applications. Top assignees: Sumitomo Electric Industries, Limited, Osaka University. Active years: 2015-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (2015 - 2019)
- Yokohama-shi, JP (2019)
- Osaka, JP (2021 - 2024)
Company Filing History:
16 out of 10,641 
1 out of 1,043 
Years Active: 2015-2026
Title: Takafumi Ohtsuka: Innovator in Optical Technology
Introduction
Takafumi Ohtsuka is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, holding a total of 16 patents. His work focuses on advancements in optical amplifiers and communication systems, showcasing his expertise and innovative spirit.
Latest Patents
Ohtsuka's latest patents include an optical amplifier and an optical communication system. The optical amplifier features one or more rare earth element-doped optical fibers, each containing multiple cores. It utilizes two or more excitation light sources per core to emit excitation light, which is essential for exciting the rare earth elements within the fibers. Additionally, a synthesizing part is included to combine the excitation light emitted from these sources for each core.
Another notable patent is the mode-dependent loss measurement device and method. This apparatus is designed to transmit a portion of first light guided through multiple cores of a target object, alongside second light guided through optical waveguides. It includes modulators and detectors to output signals that provide information about the mode-dependent loss of the target object.
Career Highlights
Throughout his career, Takafumi Ohtsuka has worked with esteemed organizations such as Sumitomo Electric Industries and Osaka University. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking research in optical technologies.
Collaborations
Ohtsuka has collaborated with notable colleagues, including Hidehisa Tazawa and Masaki Suzuki. These partnerships have fostered an environment of innovation and have led to the development of advanced optical solutions.
Conclusion
Takafumi Ohtsuka's contributions to optical technology through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in optical communication systems and measurement devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile