Location History:
- Iwaki, JP (1983 - 1987)
- Matsudo, JP (1987 - 1991)
- Tokyo, JP (1980 - 1999)
Company Filing History:
22 out of 776 
12 out of 52,735 
2 out of 4,979 Years Active: 1980-1999
Title: **Yoshio Okada: Innovator in Constant-Voltage Generating Devices and Surface-Acoustic-Wave Filters**
Introduction
Yoshio Okada is a prominent inventor based in Iwaki, Japan, recognized for his significant contributions to technology through a remarkable portfolio of 37 patents. His innovative efforts mainly focus on advancements in electronic devices, particularly in voltage regulation and signal processing.
Latest Patents
Among his latest patents, Yoshio has developed a **Constant-Voltage Generating Device**. This device includes a reference voltage generating circuit responsible for producing a desired reference voltage, complemented by a constant-current circuit unit that features a differential error amplifier. This setup allows for precise control of current flow through a system. The device's architecture ensures that a stable output voltage is maintained, thus enhancing its reliability for various applications.
Another notable invention is the **Surface-Acoustic-Wave Filter with Poles of Attenuation**. This innovative filter design includes a two-port surface-acoustic-wave resonator circuit arranged in conjunction with a two-port impedance circuit. By aligning the open-circuit impedance with the short-circuit impedance, this design achieves high attenuation across a broad spectrum of stopband frequencies, ensuring clear signal processing.
Career Highlights
Yoshio Okada has built his career at esteemed firms, including Kureha Kagaku Kogyo Kabushiki Kaisha, where he contributed to significant advancements in material science and electronics. He also worked with Toshiba Corporation, a leader in various technological domains, allowing him to refine his inventions further and expand his expertise in the field of electronics.
Collaborations
Throughout his career, Yoshio has collaborated with talented individuals, notably Yuriko Igarashi and Tadashi Nakamura. Their combined efforts have propelled innovative solutions that address complex technological challenges, showcasing the power of teamwork in driving progress in the industry.
Conclusion
Yoshio Okada’s extensive patent portfolio and collaborative efforts underscore his influence in the realm of electronic innovations. His inventions, particularly in constant-voltage devices and surface-acoustic-wave filters, have not only advanced technology but also set benchmarks for future developments in the field. As he continues to innovate, Okada remains a key figure in shaping the future of electronics through his visionary ideas and practical solutions.