Location History:
- Yokohama, JP (2009)
- Kawasaki, JP (2007 - 2010)
Company Filing History:
Years Active: 2007-2010
Title: Innovations of Yoshihiro Amemiya
Introduction
Yoshihiro Amemiya is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of technology, particularly in the development of integrated circuits. With a total of 7 patents to his name, Amemiya's work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is a head IC that adjusts the amplitude level of a read signal of a head. This innovative head IC is designed to output to a read channel that includes an AGC amplifier. It features a differential amplifier, an AGC circuit, external gain setting sections, and a switch. The integration of the AGC amplifier within the head IC allows for automatic adjustment of the amplitude from the head, ensuring that the signal level entering the AGC amplifier's input dynamic range is optimized. This design minimizes power consumption while maintaining effective automatic adjustment.
Another significant patent involves a head IC, read circuit, and medium storage device. This head IC adjusts the amplitude level of a read signal to manage the dispersion of the output characteristic of the head. It ensures that the read signal remains within the input dynamic range of the AGC of a read channel. The feedback response speed of the AGC circuit in the head IC is intentionally set to be slower than that of the read channel's AGC circuit. Additionally, it incorporates a peak hold circuit and an amplitude limiting circuit, allowing for stable and high-speed initial gain adjustments.
Career Highlights
Yoshihiro Amemiya has worked with prominent companies such as Fujitsu Corporation and Toshiba Storage Device Corporation. His experience in these organizations has contributed to his expertise in the field of integrated circuits and signal processing.
Collaborations
Amemiya has collaborated with notable coworkers, including Yasuhiko Takahashi and Tetsuyuki Kubota. Their combined efforts have led to advancements in technology and innovation.
Conclusion
Yoshihiro Amemiya's contributions to the field of technology through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of integrated circuits and signal processing technologies.