Location History:
- Yokohama, JP (1989)
- Machida, JP (1991 - 1994)
- Tokyo, JP (1995)
- Chigasaki, JP (1997)
Company Filing History:
5 out of 59 
2 out of 38 
1 out of 3 Years Active: 1989-1997
Title: The Innovative Journey of Tomoyuki Kotani
Introduction
Tomoyuki Kotani, an accomplished inventor based in Machida, Japan, has made significant contributions to the field of materials science. With a strong focus on developing advanced polyester films, Kotani holds ten patents showcasing his innovative prowess. His work primarily revolves around enhancing the performance of magnetic recording media.
Latest Patents
Among his latest inventions, Kotani has patented a number of notable innovations. One such patent is for a **biaxially oriented polyester film for magnetic recording medium**. This film incorporates at least two different sizes of synthetic calcium carbonate particles and aluminum oxide particles, resulting in outstanding surface uniformity, running properties, and slittability. The film is designed to minimize scratches and reduce the generation of abrasion dust. Notably, the synthetic calcium carbonate particles are treated with a polycarboxylic acid followed by a phosphorus compound, enhancing their effectiveness.
Another significant patent is for **biaxially oriented laminated polyester film for magnetic recording media**. This innovation also boasts excellent surface uniformity, slittability, and running properties while providing favorable cost performance. Magnetic tapes produced from this laminated film exhibit fewer scratches and reduced abrasion dust, making them highly effective for their intended applications.
Career Highlights
Throughout his career, Tomoyuki Kotani has worked with renowned companies, including Diafoil Company, Ltd. and Diafoil Hoechst Company, Limited. His tenure at these organizations has played a pivotal role in the development of groundbreaking materials that address industry needs.
Collaborations
Kotani's innovative journey has been supported by collaborations with distinguished colleagues. Notable coworkers include Narihiro Masuda and Shigeo Utsumi, who have contributed their expertise and insights to enhance the research and development efforts in the field of polyester film technology.
Conclusion
Tomoyuki Kotani's advancements in the realm of polyester films for magnetic recording media underscore his exceptional talent as an inventor. With a robust portfolio of patents and fruitful collaborations, Kotani continues to impact the materials science industry significantly, paving the way for future innovations.