Company Filing History:
2 out of 614 
1 out of 4,800 
Years Active: 1993-1995
Title: Hitoshi Nagashima: Innovator in Titanium Disc Technology
Introduction: Hitoshi Nagashima is an accomplished inventor based in Tokyo, Japan, renowned for his contributions to the field of magnetic disc technology. With a total of two patents to his name, Nagashima's work focuses on enhancing the performance of magnetic discs through innovative use of materials and manufacturing processes.
Latest Patents: Among his latest innovations, Nagashima has developed titanium discs specifically designed for high-density read-while-write magnetic discs. These titanium discs are coated with a non-magnetic plated layer, achieving specific structures that enhance their functionality. One of his patents describes a titanium disc with a mean height of the peaks from the center line, Ra, ranging from 0.0002 μm to 0.0060 μm, while ensuring the pits on the surface do not exceed 25 μm in diameter or 5 μm in depth. Additionally, he has patented a method for manufacturing a magnetic disk substrate of titanium, which includes performing chemical etching to remove surface portions and then anodizing the new surface to form a protective anodized film.
Career Highlights: Hitoshi Nagashima has had a notable career, working with leading companies such as NKK Corporation and Fuji Electric Co., Ltd. His professional experience has played a crucial role in the development of advanced materials used in magnetic storage solutions.
Collaborations: Throughout his career, Nagashima has collaborated with esteemed colleagues, including Hiroyoshi Suenaga and Masanori Ohmura. These collaborations have significantly contributed to his innovations and the overall advancement of technology in the magnetic disc industry.
Conclusion: Hitoshi Nagashima exemplifies the spirit of innovation within the technology sector. His patents in titanium discs for magnetic applications not only demonstrate his expertise but also reflect the potential of materials science in the evolution of data storage technology. With ongoing developments in this field, Nagashima’s work continues to pave the way for future advancements.
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.