This inventor holds 4 USPTO granted patents. Top assignees: Nippon Telegraph and Telephone Public Corporation, Nippon Telegraph and Telephone Corporation. Active years: 1985-1991.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ibaraki, JP (1986)
- Mito, JP (1985 - 1987)
- Ibaragi, JP (1991)
Company Filing History:
3 out of 522 
1 out of 5,300 
Years Active: 1985-1991
Title: Iwao Hatakeyama: Innovator in Magneto-Optic Recording Technology
Introduction
Iwao Hatakeyama is a notable inventor based in Mito, Japan. He has made significant contributions to the field of magneto-optic recording systems, holding a total of 4 patents. His work has advanced the technology used in data storage and retrieval.
Latest Patents
One of his latest patents is a magneto-optic recording system with overwrite capability. This innovative system features a recording medium that includes a substrate, a recording magnetic film, and a reproducing magnetic film. The reproducing magnetic film has a Curie temperature lower than that of the recording magnetic film, allowing for efficient data transfer and overwriting. Another significant patent involves an iron oxide magnetic film and its fabrication process. This patent describes a gamma-Fe2O3 film enhanced with additives such as osmium, which improves the film's magnetic properties and reduces noise.
Career Highlights
Throughout his career, Iwao Hatakeyama has worked with prominent organizations, including Nippon Telegraph and Telephone Public Corporation and Nippon Telegraph and Telephone Corporation. His experience in these companies has contributed to his expertise in magneto-optic technologies.
Collaborations
Iwao has collaborated with notable colleagues such as Osamu Ishii and Fumikatsu Yoshimura. Their combined efforts have furthered advancements in the field of magneto-optic recording.
Conclusion
Iwao Hatakeyama's contributions to magneto-optic recording technology have established him as a key figure in the field. His innovative patents and collaborations reflect his commitment to advancing data storage solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile