Location History:
- Sendai, JP (1985)
- Kooriyama, JP (2001)
Company Filing History:
1 out of 3 
2 out of 832,880 Years Active: 1985-2001
Title: Kazuyoshi Sugai: Innovator in Acoustic Surface Wave Technology
Introduction
Kazuyoshi Sugai, an inventive mind hailing from Sendai, Japan, has made significant contributions to the field of acoustic surface wave technology. With three patents to his name, Sugai's work reflects a deep understanding of communication systems and the development of devices that enhance data transmission efficiency.
Latest Patents
Among Sugai's noteworthy inventions is a communication system utilizing a surface acoustic wave-matched filter. This innovative system includes a spectrum diffusion signal that carries data reflecting the center frequency of an acoustic surface filter on the transmitter side. The complexity of this system allows it to transmit efficiently while sweeping its carrier frequency. Upon receiving the modulation signal, the receiver side sends out its own spectrum diffusion signal, maintaining synchronization with the transmitter's filter characteristics.
Another remarkable patent is for a multi-layer acoustic surface wave device designed to minimize delay time. This device features a substrate made of elastic material, supported by a multilayer structure of silicon dioxide and aluminum nitride layers. The unique combination of materials ensures that the temperature coefficient of delay time for acoustic surface waves remains positive, while counteracting negative coefficients through the piezoelectric properties of aluminum nitride.
Career Highlights
Throughout his career, Sugai has worked with various companies, contributing his expertise to the advancement of technology. Notable collaborations occurred at organizations where he joined forces with fellow researchers and inventors to push the boundaries of acoustic technology.
Collaborations
Sugai has collaborated with notable individuals in his field, including Kazuo Tsubouchi and Nobuo Mikoshiba. These partnerships have led to substantial advancements in the development and application of surface acoustic wave technologies, underscoring the importance of teamwork in innovation.
Conclusion
Kazuyoshi Sugai's contributions to acoustic surface wave technology showcase his inventive spirit and dedication to improving communication systems. With three patents to his credit, he continues to be a significant figure in the realm of innovations, shaping the future of technology through his groundbreaking work.