This inventor holds 2 USPTO granted patents. Top assignees: Matsushita Electric Works, Ltd., Other. Active years: 1986-2001.
Company Filing History:
2 out of 1,623 
1 out of 834,453 Years Active: 1986-2001
Title: Hisao Yabu: Innovator in High-Frequency Relay Technology
Introduction
Hisao Yabu is a notable inventor based in Osaka, Japan, recognized for his contributions to high-frequency relay technology. With a total of 2 patents, Yabu has made significant advancements in the field, particularly in the design and functionality of electromagnetic relays.
Latest Patents
Yabu's latest patents include a high-frequency relay that effectively shields a signal path while minimizing the number of components involved in the shielding structure. This innovative relay features a dielectric base that mounts three fixed contacts arranged in a line, with movable contact springs that bridge adjacent fixed contacts to open and close the high-frequency signal path. The design incorporates electromagnetic shield plates that create a shielded space for the fixed contacts and movable springs, ensuring complete shielding of the signal path.
Another significant patent is an electromagnetic relay designed for high-frequency circuits. This relay includes an armature mounted on a central shaft, allowing pivotal movement between two switching positions. The design features four actuator cards on either side of the armature, each carrying a contact spring that bridges fixed contacts. The arrangement ensures sufficient electrical separation for high-frequency applications, enhancing the relay's performance.
Career Highlights
Throughout his career, Hisao Yabu has worked with prominent companies, including Matsushita Electric Works, Ltd. His experience in these organizations has contributed to his expertise in relay technology and innovation.
Collaborations
Yabu has collaborated with notable coworkers, including Takuji Yamashita and Hidetoshi Takeyama. Their collective efforts have further advanced the field of high-frequency relay technology.
Conclusion
Hisao Yabu's contributions to high-frequency relay technology demonstrate his innovative spirit and commitment to advancing engineering solutions. His patents reflect a deep understanding of electromagnetic systems and their applications in modern technology.