This inventor holds 31 USPTO granted patents and 1 EPO patent, primarily in Semiconductor Technology. Top assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd., Renesas Technology Corp.. Active years: 1984-2017.
Location History:
- Bonn, DE (1991)
- Hachiohji, JP (1994)
- Hachioji, JP (1984 - 1995)
- Mito, JP (1999 - 2007)
- Hitachi, JP (2013 - 2017)
Company Filing History:
18 out of 42,726 
9 out of 1,641 
5 out of 3,781 
Years Active: 1984-2017
Areas of Expertise:
Title: Innovations by Takumi Ueno: A Leader in Photosensitive Resin Technology
Introduction
Takumi Ueno, an accomplished inventor based in Mito, Japan, holds an impressive portfolio of 31 patents. His pioneering work primarily focuses on the development of positive-type photosensitive resin compositions, which play a crucial role in semiconductor technology and electronic devices.
Latest Patents
Among Ueno's latest patents, notable inventions include a positive-type photosensitive resin composition that features a phenol resin modified by an unsaturated hydrocarbon compound, an acid-producing compound, a thermal crosslinking agent, and a solvent. This innovative resin composition can be developed using an alkaline aqueous solution, resulting in a resist pattern noted for its high sensitivity, resolution, adhesion, and thermal shock resistance. Additionally, Ueno's work includes a positive-type photosensitive resin composition comprised of an alkali-soluble resin with a phenolic hydroxyl group, alongside similar components, demonstrating versatility in applications for resist pattern creation and electronic components.
Career Highlights
Ueno has established a substantial career, significantly contributing to the fields of semiconductor devices and electronic technologies. His tenure at renowned companies such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. has enhanced his expertise and influence in the innovation landscape.
Collaborations
Throughout his career, Ueno has collaborated with notable professionals, including Akira Nagai and Asao Nishimura. These partnerships have facilitated the advancement of his work and the broader industry of semiconductor technology.
Conclusion
Takumi Ueno's contributions to the field of positive-type photosensitive resin technology highlight his status as a leading inventor. With a strong focus on innovation, his patents continue to influence the development of advanced semiconductor devices and electronic components, marking significant strides in technology.