Location History:
- Kitaibaraki, JP (2012)
- Ibaraki, JP (2010 - 2018)
Company Filing History:
11 out of 481 
1 out of 165 Years Active: 2010-2018
Title: The Innovations of Masakatsu Ikisawa
Introduction
Masakatsu Ikisawa is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of materials science, particularly in the development of transparent conductive films and oxide sintered compacts. With a total of 12 patents to his name, Ikisawa's work has had a substantial impact on various technological applications.
Latest Patents
One of Ikisawa's latest patents involves an indium oxide transparent conductive film. This invention features an indium oxide sintered compact containing zirconium as an additive. The atomic concentration of zirconium is maintained between 0.5 to 4%, achieving a relative density of 99.3% or higher, with a bulk resistance of 0.5 mΩ·cm or less. This film exhibits high transmittance in both the visible light and infrared regions, along with low film resistivity. Additionally, the crystallization temperature can be controlled, enhancing its manufacturing process.
Another notable patent focuses on an oxide sintered compact made of indium, gallium, zinc, and oxygen. This compact is represented by the formula InxGayZnzOa, where specific ratios of the elements are maintained to ensure high densification and low bulk resistance. This technology is particularly useful in producing IGZO targets, which are essential for various sputtering applications. The invention addresses challenges such as swelling and cracks during production, minimizing the generation of nodules and inhibiting abnormal discharge.
Career Highlights
Ikisawa has worked with notable companies, including JX Nippon Mining & Metals Corporation and Nippon Mining & Metals Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.
Collaborations
Ikisawa has collaborated with esteemed colleagues, including Masataka Yahagi and Hideo Takami. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Masakatsu Ikisawa's contributions to the field of materials science through his innovative patents have significantly advanced the technology of transparent conductive films and oxide sintered compacts. His work continues to influence various industries, showcasing the importance of innovation in modern technology.