Inventors with similar research interests:
Location History:
- Hachioji, JP (1981 - 1982)
- Sayama, JP (1983 - 1992)
- Kitasoma, JP (1993)
- Kitasouma, JP (1994)
- Moriya, JP (1998)
- Iruma, JP (1989 - 1999)
- Kitasoma-gun, JP (2001)
- Ibaraki-ken, JP (1997 - 2002)
- Tsukuba-gun, JP (1999 - 2005)
- Ibaraki, JP (1994 - 2006)
- Yawara-mura, JP (2005 - 2008)
Company Filing History:
36 out of 42,496 
29 out of 1,112 
3 out of 56 
Years Active: 1981-2008
Areas of Expertise:
Title: **Norio Ohta: Innovator in Magnetic Recording Technologies**
Introduction
Norio Ohta, an illustrious inventor hailing from Yawara-mura, Japan, has made significant contributions to the field of magnetic recording technologies. With an impressive portfolio of 65 patents, Ohta's innovations are widely recognized for advancing data storage solutions.
Latest Patents
Among his recent breakthroughs, Ohta developed a **method for recording information data to a recording medium by irradiation with a light beam and application of a magnetic field**. This invention pertains to a magnetic recording medium comprising a first magnetic film and a second magnetic film on a substrate. The first magnetic film, made of a ferrimagnetic material, exhibits excellent thermal stability, while the second magnetic film, composed of a magnetic material optimized for recording and reproduction, allows for data storage. By heating the first magnetic film with a laser beam to reduce coercivity, information is magnetically transferred from the second film, resulting in a reliable medium that withstands thermal fluctuations.
Another significant patent focuses on a **method for recording and reproduction on a magneto-optical recording medium**. This technology features a magneto-optical recording medium that supports four-valued recording through two magnetic layers, each corresponding to four combined magnetization states. By employing light beams of differing wavelengths, Ohta's design enhances the signal-to-noise ratio during the retrieval of recorded information, facilitating multi-valued reproduction signals that increase data reliability.
Career Highlights
Norio Ohta's professional journey includes prominent roles at companies such as Hitachi, Ltd. and Hitachi Maxell, Limited, where he honed his expertise in magnetic recording technologies. His dedication to research and development has positioned him as a leader in the innovative realm of data storage.
Collaborations
Throughout his career, Ohta has collaborated with esteemed colleagues, including Katsusuke Shimazaki and Masafumi Yoshihiro. These partnerships have fostered a collaborative spirit of innovation, contributing to the advancement of magnetic recording technology.
Conclusion
Norio Ohta's remarkable innovations have played a significant role in shaping the future of magnetic recording technologies. With a substantial number of patents to his name, his contributions are invaluable to the field, ensuring that data storage solutions continue to evolve and adapt to modern needs. Ohta's work exemplifies how determination and creativity can lead to groundbreaking advancements in technology.