Atsuko Niwa

Title: Atsuko Niwa: Innovator in Optical Information Processing

Introduction

Atsuko Niwa is a prominent inventor based in Hachioji, Japan. She has made significant contributions to the field of optical information processing and semiconductor technology. With a total of 2 patents, her work has advanced the capabilities of high-reliability information processors and light-emitting devices.

Latest Patents

Atsuko Niwa's latest patents include innovations in optical information processing equipment and semiconductor light-emitting devices. One of her notable inventions is an information processor that boasts high reliability and recording density. This technology enables the satisfactory recording and reproduction of moving pictures, such as high-definition television images. Additionally, her semiconductor light-emitting device operates at a low threshold current density, which is crucial for efficiency. The device features a barrier layer in a quantum-well active layer that is doped with n-type impurities at a high density. Furthermore, the face orientation of the quantum-well active layer is inclined from the (0001) plane, which helps to decrease the threshold current value. This semiconductor light-emitting device is typified by a gallium nitride-based compound semiconductor laser device.

Career Highlights

Atsuko Niwa has established herself as a key figure in her field through her innovative work at Hitachi, Ltd. Her contributions have not only advanced technology but have also set new standards in optical information processing.

Collaborations

Throughout her career, Atsuko has collaborated with notable colleagues, including Tsukuru Ohtoshi and Takao Kuroda. These partnerships have further enriched her research and development efforts.

Conclusion

Atsuko Niwa's work in optical information processing and semiconductor technology exemplifies her commitment to innovation. Her patents reflect her expertise and dedication to advancing technology in her field.