This inventor holds 1 USPTO granted patent. Top assignees: Nec Corporation, Nec Platforms, Ltd.. Active years: 2026.
Company Filing History:
1 out of 36,653 
1 out of 366 
Years Active: 2026
Title: Hiroaki Shiga: Innovator in Underwater Technology
Introduction
Hiroaki Shiga is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of underwater technology, particularly with his innovative patent related to feedthrough structures.
Latest Patents
Hiroaki Shiga holds a patent for a "Feedthrough structure and underwater apparatus." This invention involves a body component and a protector component that are inserted into the through hole of the end face plate. The protector component is strategically placed closer to the outer surface of the end face plate than the body component. The body component serves to guide a tail cable into the internal space of the pressure-resistant housing main body, while the protector component safeguards the tail cable. Additionally, a nut is used to secure the protector component to the end face plate, and an elastic member is attached to cover the boundary between the protector component and the nut. Insulating liquid is charged in the space between the elastic member and the protector component, enhancing the apparatus's functionality.
Career Highlights
Throughout his career, Hiroaki Shiga has worked with prominent companies such as NEC Platforms, Ltd. and NEC Corporation. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Hiroaki Shiga has collaborated with fellow inventor Toshihide Nagasawa, further enriching his work in the field of underwater technology.
Conclusion
Hiroaki Shiga's contributions to underwater technology through his innovative patent demonstrate his expertise and commitment to advancing this field. His work continues to influence the development of underwater apparatuses, showcasing the importance of innovation in technology.