This inventor holds 4 USPTO granted patents, plus 1 CIPO patent. Top assignees: Yamatake-Honeywell Co., Ltd., Yokowo Co., Ltd., Yokowo Mfg. Co., Ltd.. Active years: 1990-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 1990-2009
Title: The Innovations of Fusao Sekiguchi
Introduction
Fusao Sekiguchi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of telecommunications and wireless technology. With a total of 4 patents to his name, Sekiguchi's work has paved the way for advancements in mobile communication devices.
Latest Patents
One of Sekiguchi's latest patents is a variable tuning antenna and mobile wireless device using the same. This innovative antenna includes a tuning circuit and a radiation element connected in series. The tuning circuit consists of a first inductance element and a parallel circuit, which includes a second inductance element and a variable capacitance element. The design allows for tunability across a wide range of low-frequency bands, making it applicable for devices such as portable telephones and digital TVs. Another significant patent is a baseband signal communication apparatus. This apparatus features a transmission unit that superposes a subcarrier on a baseband signal and a reception unit that demodulates the signal upon reception. This technology enhances the efficiency of communication in wireless devices.
Career Highlights
Throughout his career, Sekiguchi has worked with prominent companies such as Yamatake-Honeywell Co., Ltd. and Yokowo Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative communication technologies.
Collaborations
Sekiguchi has collaborated with notable coworkers, including Yoshikazu Kawashima and Ko Ishikawa. Their combined efforts have led to advancements in the field of wireless communication.
Conclusion
Fusao Sekiguchi's contributions to the field of telecommunications are significant and impactful. His innovative patents and collaborations have advanced mobile communication technology, making him a noteworthy figure in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile