Location History:
- Kanagawa, JP (2009 - 2013)
- Lexington, MA (US) (2019)
- Cambridge, MA (US) (2019 - 2020)
- Boston, MA (US) (2021)
- Tokyo, JP (2007 - 2024)
Company Filing History:
18 out of 15,928 
14 out of 1,634 
2 out of 21,351 
Years Active: 2007-2025
Title: Innovations of Yukimasa Nagai in Wireless Communication
Introduction
Yukimasa Nagai, a prolific inventor based in Tokyo, Japan, has made significant contributions to the field of wireless communication. With an impressive portfolio of 27 patents, he has focused primarily on improving the performance and efficiency of network systems, particularly in environments with competing technologies.
Latest Patents
Among his latest innovations is a patent for a "Suspendable CSMA/CA for IEEE 802.15.4 system to reduce packet discard caused by backoff failure." This advancement involves a computer-executed method specifically designed for IEEE 802.15.4 devices, allowing them to optimize their backoff procedures within a busy channel. By selecting a suspendable CSMA/CA control program, devices can manage their transmission attempts more effectively, thereby minimizing packet loss.
Another crucial patent is the "Hybrid carrier sense multiple access system with collision avoidance for IEEE 802.15.4 to achieve better coexistence with IEEE 802.11." This innovation caters to the need for interoperability between Wi-SUN devices and Wi-Fi HaLow networks, successfully allowing packet transmission even when both networks operate in shared frequency spectra. The system intelligently assesses channel status and adjusts transmission attempts to ensure efficient communication.
Career Highlights
Throughout his career, Yukimasa Nagai has worked with leading firms such as Mitsubishi Electric Corporation and Mitsubishi Electric Research Laboratories, Inc. His experience in these companies has provided him the platform to develop cutting-edge technologies that address real-world communication challenges.
Collaborations
Nagai has collaborated with notable colleagues in the field, including Takenori Sumi and Philip Orlik. These partnerships have allowed him to leverage diverse expertise and foster innovative solutions to complex problems in wireless communication.
Conclusion
Yukimasa Nagai exemplifies the spirit of innovation with his dedicated work in the wireless communication sector. His patents and inventions are paving the way for future advancements, enhancing device interactions and overall network efficiency in increasingly crowded frequency environments. As technology continues to evolve, contributions from inventors like Nagai will be pivotal in shaping the future of communication systems.