This inventor holds 10 USPTO granted patents. Top assignees: Sony Corporation, Clarion Co, Other. Active years: 1983-2011.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Toda, JP (1983)
- Tokyo, JP (1986 - 2004)
- Saitama, JP (1985 - 2011)
Company Filing History:
4 out of 58,151 
3 out of 1,057 
3 out of 834,708 Years Active: 1983-2011
Title: Innovations of Toshiyuki Imagawa
Introduction
Toshiyuki Imagawa is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of wireless technology, particularly in the development of earphone antennas. With a total of 10 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is for an earphone antenna and wireless device that addresses high-frequency adverse effects on wireless devices transmitted from the human body via an earphone. This innovative earphone antenna ensures receiver sensitivity required for signals across a wide frequency range without the need for sensitivity control operations. It effectively transmits audio signals from a television receiver to an earphone unit. The design includes two pairs of audio/high-frequency signal lines corresponding to the left and right earphone units, which are connected to a balun. The terminals of these signal lines are linked to the earphone units through loading coils, which have low impedance for fundamental frequencies and high impedance for blocking specific higher frequencies. This structure allows for efficient audio signal transmission while minimizing interference.
Career Highlights
Throughout his career, Toshiyuki Imagawa has worked with prominent companies, including Sony Corporation. His experience in these organizations has contributed to his expertise in wireless technology and innovation.
Collaborations
He has collaborated with notable individuals in the field, including Minoru Oozeki and Yoshitaka Yoshino. These partnerships have likely enhanced his work and led to further advancements in his inventions.
Conclusion
Toshiyuki Imagawa's contributions to the field of wireless technology, particularly through his innovative earphone antenna designs, showcase his expertise and commitment to advancing the industry. His patents reflect a deep understanding of the challenges in wireless communication and a dedication to finding effective solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile