Location History:
- Ashikaga, JP (2000)
- Gunma, JP (2006 - 2009)
Company Filing History:
Years Active: 2000-2009
Title: Akira Hatsugai: Innovator in Optical Semiconductor Technology
Introduction
Akira Hatsugai is a notable inventor based in Gunma, Japan, recognized for his contributions to the field of optical semiconductor technology. With a total of 4 patents to his name, Hatsugai has made significant advancements that enhance the performance and reliability of optical devices.
Latest Patents
Hatsugai's latest patents include an innovative optical semiconductor integrated circuit device. This device features an opening portion in an insulating layer, strategically formed in a light receiving region of a photodiode. The design reduces the step of the opening portion, which improves the step coverage of a light shadowing film on the insulating film. This advancement addresses the issue of conventional light shadowing films breaking, particularly for photodiodes used with blue laser beams.
Another significant patent involves a manufacturing method for optical semiconductor integrated circuit devices. In this method, a multi-layered wiring layer is formed on the substrate's top surface. The insulating layer on the anti-reflection film of the photodiode is then dry-etched to remove it, using a barrier metal layer as an etching stopper. This process simplifies manufacturing and enhances the sensitivity to light by minimizing fluctuations in light incidence.
Career Highlights
Hatsugai is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of optical semiconductors. His work has not only contributed to the company's technological advancements but has also positioned him as a key figure in the industry.
Collaborations
Throughout his career, Hatsugai has collaborated with talented individuals such as Tsuyoshi Takahashi and Katsuya Okabe. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Akira Hatsugai's contributions to optical semiconductor technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the challenges in the field and provide solutions that enhance device performance.