Company Filing History:
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Years Active: 1984-1991
Title: Innovations of Yukitoshi Kushiro
Introduction
Yukitoshi Kushiro is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of eight patents. His work focuses on light-emitting devices and optical modulators, showcasing his expertise in advanced materials and engineering.
Latest Patents
One of his latest patents is for a light-emitting semiconductor device. This device emits blue and/or green light and features an active layer sandwiched between a pair of clad layers, all deposited on a semiconductor substrate. The substrate can be made from materials such as GaAs, GaP, InP, Si, Ge, ZnSe, and mixed crystals of GaAsP. The active layer consists of various compound semiconductors, while the clad layer is made of a II-transition metal-VI group compound semiconductor that is lattice-matched to the active layer.
Another notable patent is for a semiconductor external optical modulator. This modulator is designed to optimize the mode of polarization of incident light, the crystal plane of the substrate, the energy gap of the optical waveguide layer, and the direction of light travel. The goal is to minimize variations in the real part of the refractive index of the optical waveguide layer, which are caused by the application of an electric field.
Career Highlights
Yukitoshi Kushiro has worked with notable companies such as Kokusai Denshin Denwa Kabushiki Kaisha and Kokusai Denshin Denwa K.K. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Throughout his career, Yukitoshi has collaborated with esteemed colleagues, including Shigeyuki Akiba and Yukio Noda. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Yukitoshi Kushiro's contributions to semiconductor technology through his innovative patents highlight his expertise and dedication to the field. His work continues to influence advancements in light-emitting devices and optical modulation.