Location History:
- Kanagawa, JP (2012 - 2013)
- Yokohama, JP (2005 - 2014)
- Tokyo, JP (2016)
Company Filing History:
Years Active: 2005-2016
Title: Innovations of Kunihiro Kawai in Wireless Circuit Technology
Introduction
Kunihiro Kawai, a prominent inventor based in Yokohama, Japan, has made significant contributions to the field of wireless circuit technology. With a total of 20 patents to his name, Kawai has been at the forefront of innovations that enhance telecommunication systems.
Latest Patents
Among his latest inventions are two notable patents. The first, titled "Wireless Circuit and Frequency Pair Determination Method," describes a robust wireless circuit capable of operating across multiple frequency bands. The innovation incorporates a transmission-reception antenna, a variable frequency duplexer, a double-pole six-throw switch, an RFIC (Radio Frequency Integrated Circuit), and a controller that executes switching operations based on control signals. This technology enables efficient switching between transmission and reception frequency bands, optimizing performance in wireless communications.
The second patent, "Front-end Circuit and Impedance Adjustment Method," details a sophisticated front-end circuit that includes an RFIC, an antenna, multiple duplexers, and variable impedance adjustment circuits. The control unit receives signals from the RFIC and manages the switching operations, allowing for precise impedance adjustments tailored to specific frequency bands. This method enhances signal quality and overall system performance.
Career Highlights
Kawai's current affiliation with NTT DoCoMo, Inc. places him in one of Japan's leading telecommunications companies. His role involves pioneering research and development in wireless technologies, contributing to advancements that benefit a wide array of communication applications. His inventive contributions have earned him recognition in the industry and strengthened the company's reputation for innovation.
Collaborations
Throughout his career, Kunihiro Kawai has collaborated with notable coworkers, including Shoichi Narahashi and Hiroshi Okazaki. Together, they have combined their expertise to push the boundaries of wireless technology and tackle complex challenges related to signal transmission and reception.
Conclusion
Kunihiro Kawai's significant contributions to wireless circuit technology illustrate the impact of innovation in the telecommunications sector. His recent patents demonstrate a commitment to advancing systems that enable seamless communication, reinforcing the importance of inventors in developing technologies that improve everyday lives. Kawai's ongoing work at NTT DoCoMo will likely continue to drive advancements in this essential field.