Location History:
- Tokyo, JP (1992 - 1994)
- Kanagawa, JP (1989 - 1996)
- Sagamihara, JP (1989 - 1997)
Company Filing History:
18 out of 91 
2 out of 126 
1 out of 1 Years Active: 1989-1997
Title: Yoshimi Egashira: Innovator in Antenna Technology
Introduction
Yoshimi Egashira, an esteemed inventor based in Kanagawa, Japan, has made significant contributions to the field of telecommunications through his innovative antenna designs. With a notable portfolio consisting of 21 patents, Egashira has paved the way for advancements in portable telephone technology.
Latest Patents
Among his latest inventions, Egashira is credited with developing a retractable broad-band antenna for portable telephones. This antenna features three key elements: a first element that resonates in the lower frequency band, a second element that resonates in the higher band and is coupled to the first, and a third element designed specifically for call reception. The design incorporates shortened helical coils to enhance its broad band characteristics.
In another remarkable patent, Egashira introduced a telescopic antenna for portable telephones. This design includes a dual structure where two antennas are carefully positioned parallel to one another within a uniquely crafted mount, allowing both antennas to extend and retract. This innovative configuration not only optimizes performance but also maintains a compact form in the telephone housing.
Career Highlights
Yoshimi Egashira has held significant roles in companies such as Harada Kogyo Kabushiki Kaisha and Harada Industry Co., Ltd. His work in these organizations has been instrumental in advancing the technology behind portable communication devices.
Collaborations
Throughout his career, Egashira has collaborated with talented individuals such as Xu Hai and Moriyoshi Kawasaki. Their joint efforts have contributed to the creation of cutting-edge technologies, enhancing the functionality and efficiency of communication devices.
Conclusion
Yoshimi Egashira's commitment to innovation in antenna technology has greatly influenced the telecommunications landscape. His patents and collaborative efforts highlight his dedication to advancing technology, making a lasting impact in the industry. As advancements continue, Egashira's work remains a cornerstone for future innovations in portable communication devices.