Location History:
- Hyogo, JP (1985)
- Atsugi, JP (1988)
- Atusgi, JP (1988)
Company Filing History:
Years Active: 1985-1988
Title: Nobuyasu Hase: Innovator in Semiconductor Laser Technology
Introduction
Nobuyasu Hase is a prominent inventor based in Hyogo, Japan, known for his significant contributions to semiconductor laser technology. With a total of 3 patents to his name, Hase has made remarkable advancements in the field, particularly in the design and functionality of semiconductor lasers.
Latest Patents
Hase's latest patents include a semiconductor laser with a controllable transmittance layer. This innovative design features an active layer and a pair of cladding layers that form a light waveguide passage. The light is guided toward the substrate by reflecting it at reflecting layers made of dielectric material. The inclusion of a multiquantum well layer allows for changes in transmittance based on the applied electric field, enabling extremely high-speed modulation. Additionally, through-holes in the substrate can derive output light, with some filled with a reflection layer to selectively reflect specific wavelengths, allowing for oscillation at different wavelengths using multiple laser chips.
Another notable patent is a semiconductor laser device capable of emitting laser beams of different wavelengths. This device consists of a compound semiconductor substrate and multiple semiconductor layers that are electrically isolated to create portions with differing quantum levels. By applying voltage between the electrodes, laser beams of varying wavelengths can be emitted from the device, showcasing Hase's innovative approach to semiconductor technology.
Career Highlights
Hase has built a successful career at Matsushita Electric Industrial Co., Ltd., where he has been instrumental in developing cutting-edge semiconductor technologies. His work has not only advanced the field but has also contributed to the company's reputation as a leader in electronic innovation.
Collaborations
Throughout his career, Hase has collaborated with notable colleagues, including Mototsugu Ogura and Yuzaburoh Ban. These partnerships have fostered a creative environment that has led to significant advancements in semiconductor laser technology.
Conclusion
Nobuyasu Hase's contributions to semiconductor laser technology have established him as a key figure in the field. His innovative patents and collaborative efforts continue to influence advancements in electronic devices and applications.