Location History:
- Tokyo, JA (1977 - 1978)
- Tokyo, JP (1978 - 1981)
- Yokohama, JP (1984 - 1995)
- Kanagawa, JP (1988 - 1995)
Company Filing History:
33 out of 28,544 
2 out of 23 
2 out of 20 Years Active: 1977-1995
Title: Innovator Wasaburo Ohta: Pioneering Thin Film Technologies
Introduction: Wasaburo Ohta is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the field of thin film technology. With a remarkable portfolio of 36 patents, Ohta has focused his research on enhancing the performance and cost-effectiveness of magnetic heads and thin film deposition systems.
Latest Patents: One of Ohta's latest innovations is a method of forming a thin film magnetic head. This design incorporates a lower magnetic pole on a substrate, a coil situated on the lower magnetic pole through an adhesive layer, and an upper magnetic pole placed above the coil. A gap layer is integrated between the upper and lower magnetic poles. The method outlines various processes, including the formation of the lower magnetic pole and coil, polishing the substrates for optimal contact, adhering the substrates together, and forming a gap layer, leading to improved performance and reduced costs of thin film magnetic heads.
Another significant invention by Ohta is a thin film deposition system, which features a vacuum casing where an active or inert gas is introduced. This system utilizes a filament to emit thermions that ionize gas molecules into positive ions, which then bombard a target to emit particles that deposit onto a substrate. This process is enhanced by a grid mechanism that further ionizes the particles, resulting in high-quality thin films.
Career Highlights: Ohta's impressive career includes valuable tenure with renowned companies such as Ricoh Company, Ltd. and Kabushiki Kaisha Ricoh, where he applied his innovative thinking to practical challenges in the industry. His patents reflect a deep understanding of materials and processes critical to advancements in magnetic and deposition technologies.
Collaborations: Throughout his career, Ohta has collaborated with fellow innovators like Mikio Kinoshita and Shinji Yagawara. These partnerships have likely contributed to the refinement and dissemination of ideas critical to their joint projects in thin film technology.
Conclusion: Wasaburo Ohta stands out as a distinguished inventor whose innovative work in thin film technologies significantly impacts various industries. His 36 patents underscore a relentless pursuit of improvement in technology, from magnetic heads to advanced deposition systems, paving the way for future developments in the field.
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.