Location History:
- Yokohama, JA (1976)
- Yokohama, JP (1990)
- Fukui, JP (1995)
Company Filing History:
Years Active: 1976-1995
Title: Innovations of Yoshihiro Arakawa
Introduction
Yoshihiro Arakawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of technology, particularly in signal processing and convergence correction circuits. With a total of 3 patents to his name, Arakawa continues to push the boundaries of innovation.
Latest Patents
One of his latest inventions is the Adaptive Crosshatch Signal Generator. This device includes a frequency detector that identifies horizontal scanning frequencies. It features a square calculator that processes the detected output and a variable pulse width multivibrator. The multivibrator generates output pulses that form longitudinal lines of a crosshatch signal, ensuring that the line width remains consistent with the distance between adjacent scanning lines. This invention is designed to work with a simplified configuration, regardless of the input signal format.
Another significant patent is the Convergence Correction Circuit. This circuit utilizes a phased locked loop that incorporates a programmable counter. The counter has programmable count start and end points, allowing for adjustments based on the horizontal screen size. As the screen size increases, the count start and end points are modified to ensure accurate convergence correction, even with varying screen dimensions.
Career Highlights
Yoshihiro Arakawa is currently employed at Hitachi, Ltd., where he applies his expertise in developing advanced technological solutions. His work has been instrumental in enhancing the performance of electronic devices through innovative signal processing techniques.
Collaborations
Throughout his career, Arakawa has collaborated with talented individuals such as Takeo Yamada and Miyuki Ikeda. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Yoshihiro Arakawa's contributions to the field of technology are noteworthy, particularly through his innovative patents. His work at Hitachi, Ltd. and collaborations with esteemed colleagues highlight his commitment to advancing technology. Arakawa's inventions continue to influence the industry and pave the way for future innovations.