Company Filing History:
Years Active: 2008-2011
Title: Yasushi Ohno: Innovator in Gallium Nitride-Based Semiconductor Technology
Introduction
Yasushi Ohno is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of gallium nitride-based devices. With a total of 3 patents to his name, Ohno's work has had a substantial impact on the industry.
Latest Patents
One of Yasushi Ohno's latest patents is a gallium nitride-based compound semiconductor light-emitting device. This innovative device includes an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer, all composed of gallium nitride-based compound semiconductors. These layers are deposited in that order on a substrate. The device also features a negative electrode and a positive electrode that are in contact with the n-type and p-type semiconductor layers, respectively. Notably, the positive electrode has a translucent structure that includes a contact metal layer, a current diffusion layer, and a bonding pad layer.
Another significant patent is for a transparent positive electrode designed for gallium nitride-based compound semiconductor light-emitting devices. The objective of this invention is to provide a positive electrode that boasts high transparency, low contact resistance, and excellent current diffusibility. This design does not require electron beam irradiation, high-temperature annealing, or heat treatment for alloying in an oxygen atmosphere. The transparent positive electrode comprises a contact metal layer, a current diffusing layer, and a bonding pad layer.
Career Highlights
Yasushi Ohno is currently employed at Showa Denko K.K., a leading company in the semiconductor industry. His work at Showa Denko has allowed him to focus on advancing semiconductor technologies and contributing to innovative solutions in the field.
Collaborations
Ohno has collaborated with notable coworkers, including Munetaka Watanabe and Noritaka Muraki. These collaborations have further enhanced his research and development efforts in semiconductor technology.
Conclusion
Yasushi Ohno is a key figure in the advancement of gallium nitride-based semiconductor technology. His innovative patents and contributions to Showa Denko K.K. highlight his importance in the field. His work continues to influence the development of efficient and effective semiconductor devices.