Company Filing History:
13 out of 1,883 
2 out of 121 
2 out of 1,100 Years Active: 2006-2014
Title: Innovations of Katsufumi Tomihisa
Introduction
Katsufumi Tomihisa is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of display technology and semiconductor devices. With a total of 17 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
His latest patents include an Al alloy film for display devices, a display device itself, and a sputtering target. The Al alloy film is designed to be directly connected to a conductive oxide film on a substrate. This innovative film comprises Ge in an amount of 0.05 to 0.5 at %, along with Gd and/or La in a total amount of 0.05 to 0.45 at %. The invention ensures high adhesion between the conductive oxide film and the Al alloy film, resulting in low contact resistivity and excellent dry etching properties. Additionally, he has developed a wiring structure that achieves excellent low-contact resistance by eliminating the need for a barrier metal layer between a Cu alloy wiring film and a semiconductor layer.
Career Highlights
Throughout his career, Katsufumi Tomihisa has worked with notable companies such as Kobe Steel, Ltd. and Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.). His expertise in materials science and engineering has led to advancements in various technologies.
Collaborations
He has collaborated with esteemed colleagues, including Toshihiro Kugimiya and Hiroshi Gotoh, to further enhance his research and development efforts.
Conclusion
Katsufumi Tomihisa's innovative contributions to display technology and semiconductor devices have established him as a key figure in his field. His patents reflect a commitment to advancing technology and improving device performance.
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.