Location History:
- Atsugi, JP (1984)
- Zama, JP (1984)
- Kanagawa, JP (1992 - 1997)
- Kanagawa Prefecture, JP (2008)
Company Filing History:
9 out of 58,130 
2 out of 621 
Years Active: 1984-2008
Title: The Innovative Contributions of Hirohisa Koga
Introduction: Hirohisa Koga is a distinguished inventor based in Kanagawa, Japan, with an impressive portfolio of nine patents. His inventions primarily focus on advancements in magnetic head devices and linear tape drives, showcasing his significant impact on the field of data storage technology.
Latest Patents: Koga's latest patents include groundbreaking technologies aimed at enhancing the performance of magnetic head devices. One patent describes a magnetic head device and linear tape drive that increases the resonant frequency and the range of a servo system. This invention features a magnetic head chip with multiple elements that allows for fine positioning, enabling the head to accurately follow data tracks on linear magnetic tape. Notably, this design reduces weight, thereby increasing the resonant frequency and servo bandwidth.
Another recent patent introduces a magnetic head device with twin bimodal actuators and a dampening structure designed to widen the high-frequency side of the servo range. This invention incorporates a magnetic head chip equipped with multiple elements for recording or playback across various tracks. The innovative bimodal construction improves the high-speed response of the device and increases the resonant frequency, ultimately enhancing the device's overall efficiency.
Career Highlights: Throughout his career, Hirohisa Koga has made substantial contributions to the field of data storage technology. His work with renowned companies such as Sony Corporation and Imation Corporation has been pivotal in advancing the capabilities of magnetic tape drives and other related technologies. Koga's inventions reflect a deep understanding of engineering principles and innovative design.
Collaborations: In the course of his career, Koga has collaborated with esteemed colleagues including Takashi Abe and Yoshihiko Ito. These partnerships have enabled him to further explore innovative solutions and refine his inventions, contributing to the success of various projects within the industry.
Conclusion: Hirohisa Koga's contributions to technology through his inventions and patents illustrate the significant role that innovative minds play in advancing our understanding and capabilities in data storage. His dedication to improving magnetic head devices and linear tape drives positions him as a key figure in engineering, and his work continues to inspire future developments in the field.