Company Filing History:
Years Active: 2007-2009
Title: Kazuhiko Washizu: Innovator in Magnetic Disk Technology
Introduction
Kazuhiko Washizu is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of four patents. His work focuses on improving the efficiency and accuracy of magnetic disk drives.
Latest Patents
One of Washizu's latest patents is titled "Method and apparatus for writing pattern on disk." This invention ensures that the pitch of a servo write track is accurately controlled. The Self Servo Write (SSW) method identifies read-write offsets and calculates target positions on both the inner and outer diameter sides of a magnetic disk. In the inner diameter-side area, the SSW controller uses a radial pattern to identify the read-write offset, which is then used to anticipate the offset in the outer diameter-side area. This innovative approach enhances the precision of servo write tracks.
Another notable patent is the "Magnetic head tester and method of manufacturing magnetic disk drive." This invention provides an inexpensive magnetic head tester that utilizes components from a production hard disk drive (HDD). The design incorporates a lightweight fixing mechanism for the head gimbal assembly (HGA) and achieves servo control through the actuator of a production VCM. This invention significantly reduces costs while maintaining functionality close to that of a production HDD.
Career Highlights
Kazuhiko Washizu is currently employed at Hitachi Global Storage Technologies Netherlands B.V. His work at this company has allowed him to further develop his innovative ideas in magnetic disk technology. His contributions have been instrumental in advancing the capabilities of storage devices.
Collaborations
Washizu has collaborated with notable colleagues, including Hiroshi Fukuyama and Kensuke Ishiwata. Their combined expertise has fostered a productive environment for innovation and development in their field.
Conclusion
Kazuhiko Washizu is a key figure in the advancement of magnetic disk technology, with several patents that enhance the performance and efficiency of storage devices. His work continues to influence the industry and drive innovation forward.