Location History:
- Yokosuka, JP (1995 - 1998)
- Kanagawa, JP (1996 - 1998)
- Tokyo, JP (2007 - 2012)
- Hachioji, JP (2010 - 2016)
Company Filing History:
8 out of 4,811 
6 out of 80 
2 out of 33 
Years Active: 1995-2016
Title: The Innovative Contributions of Hisato Kato
Introduction
Hisato Kato is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of electronics. With a total of 17 patents to his name, Kato has made remarkable advancements in technologies such as thin film field-effect transistors and magnetic recording media. His work has had a profound impact on the industry, showcasing his expertise and innovative spirit.
Latest Patents
One of Kato's latest patents is a process for producing a thin film field-effect transistor. This process involves providing a gate electrode, a gate insulating film, and source and drain electrodes. The entire surfaces of the source and drain electrodes are treated with a mixture of sulfuric acid and hydrogen peroxide. An organic electronic material layer is then provided on the gate insulating film to be in electrical contact with the source and drain electrodes. This innovative approach increases the electroconductivity of the organic electronic material and reduces the charge injection barrier from the source electrode to the organic electronic material.
Another notable patent is for a perpendicular magnetic recording medium. This medium includes a soft-magnetic underlayer, a non-magnetic underlayer, a ferromagnetic intermediate layer, a non-magnetic intermediate layer, and a perpendicular magnetic recording layer, all sequentially stacked on a non-magnetic substrate. The ferromagnetic intermediate layer is formed of a CoCr based alloy, and the product of saturation magnetic flux density and film thickness is carefully controlled to enhance performance.
Career Highlights
Throughout his career, Kato has worked with esteemed companies such as Fuji Electric Co., Ltd. and Fuji Electric Holdings Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to the advancement of technology in the electronics sector.
Collaborations
Kato has collaborated with notable colleagues, including Haruo Kawakami and Tomoyuki Kawashima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Hisato Kato's contributions to the field of electronics through his patents and collaborations highlight his role as a leading inventor. His innovative processes and products continue to influence the industry, showcasing the importance of creativity and research in technological advancement.