Location History:
- Fujisawa, JP (2007)
- Kangawa, JP (2010)
- Kanagawa, JP (2008 - 2013)
- Odawara, JP (2013 - 2015)
Company Filing History:
4 out of 2,636 
3 out of 987 
2 out of 227 
Years Active: 2007-2015
Title: Norihiro Ookawa: Innovator in Magnetic Sensor Technology
Introduction
Norihiro Ookawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic sensor technology, holding a total of 9 patents. His work focuses on enhancing the performance and efficiency of magnetic read sensors.
Latest Patents
One of his latest patents is titled "Magnetic head having two domain control layers for stabilizing magnetization of the hard bias layer." This invention includes a magnetic head with a lower shield, a read element, and two domain control layers that stabilize the magnetization of the hard bias layer. The first domain control layer is a hard magnetic layer, while the second is a soft magnetic layer, both working together to control the direction of magnetization effectively.
Another notable patent is the "Method of manufacturing a magnetic read sensor having a low resistance cap structure." This method aims to decrease area resistance and improve the magnetoresistance (MR) ratio of the sensor by eliminating oxide formation in the capping layer. The process involves forming a sensor stack with a multi-layer capping structure and utilizing a carbon hard mask during manufacturing.
Career Highlights
Norihiro Ookawa has worked with several notable companies, including Hitachi Global Storage Technologies and HGST Netherlands. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic sensor technology.
Collaborations
Throughout his career, Ookawa has collaborated with esteemed colleagues such as Shuichi Kojima and Koji Okazaki. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Norihiro Ookawa's contributions to magnetic sensor technology are noteworthy, with a focus on improving sensor performance through innovative designs and manufacturing methods. His work continues to influence the field and inspire future advancements in technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.