This inventor holds 4 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd.. Active years: 1979-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ohme, JP (1979 - 1982)
- Ome, JP (1989)
Company Filing History:

Years Active: 1979-1989
Title: Yutaka Takeda: Innovator in Semiconductor Technology
Introduction
Yutaka Takeda is a prominent inventor based in Ohme, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work has been instrumental in advancing the capabilities of semiconductor devices.
Latest Patents
One of his latest patents is a process for producing a pattern with a negative-type photosensitive resin composition. This innovative developing solution comprises at least two compounds selected from choline and quaternary ammonium salts, which are suitable for developing a negative-type photosensitive resin composition with exposure to a smaller light amount. Another notable patent involves a semiconductor laser device that includes an arrangement for preventing laser degradation. This device features an active region consisting of a semiconductor material and a confining semiconductor region with a different composition. The design allows for current to flow through regions other than the active region via a p-n junction, preventing catastrophic degradation even when subjected to currents higher than the rated value.
Career Highlights
Throughout his career, Yutaka Takeda has worked with esteemed companies such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Yutaka has collaborated with notable individuals in his field, including Motohisa Hirao and Michiharu Nakamura. These collaborations have further enriched his work and contributed to advancements in semiconductor technology.
Conclusion
Yutaka Takeda's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor. His innovative approaches continue to shape the future of the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile