Yasuhiro Iihara

Title: Yasuhiro Iihara: Innovator in Hard Disk Drive Technology

Introduction

Yasuhiro Iihara is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of hard disk drive technology, holding a total of 4 patents. His innovative work focuses on enhancing the performance and reliability of hard disk drives.

Latest Patents

One of Iihara's latest patents is titled "Pulse power during a shut down in a hard disk drive." This invention involves a hard disk drive (HDD) that includes write components designed to operate within a specific voltage range. The charging circuitry comprises a charging capacitor that holds a higher voltage when charged than the operating voltage range. The HDD features pulse circuitry that pulses power from the charging circuitry to the write components during a controlled shut down, ensuring that remaining data-sector bits are written effectively.

Another significant patent is "Disk drive device and servo control method thereof." This invention addresses the need for appropriate servo control in response to detected vibrations in a disk drive device equipped with a vibration sensor. The HDD can switch between a correction servo mode for vibration correction in head positioning and a normal servo mode without vibration correction. It performs servo positioning in either mode and determines accuracy based on measured positional error signals, ultimately selecting the mode with higher accuracy.

Career Highlights

Yasuhiro Iihara has worked with prominent companies in the technology sector, including Hitachi Global Storage Technologies and HGST Netherlands. His experience in these organizations has contributed to his expertise in hard disk drive innovations.

Collaborations

Iihara has collaborated with notable professionals in his field, including Masanori Aratani and Kaoru Iseri. Their collective efforts have further advanced the technology surrounding hard disk drives.

Conclusion

Yasuhiro Iihara's contributions to hard disk drive technology through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the performance and reliability of data storage solutions.