This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1980.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1980
Title: Shigewo Ishikawa: Innovator in Pressure Responsive Switch Technology
Introduction
Shigewo Ishikawa is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of pressure responsive switch technology. His innovative designs have paved the way for advancements in various applications, particularly in combustion engines.
Latest Patents
Ishikawa holds a patent for a "Pressure responsive switch having protection from overpressure of source." This invention features a valve seat mounted within a housing. An actuating shaft, which is movable in the axial direction, is rigidly fixed to the center portions of an elastic valve and a snap-action plate. The elastic valve has an outer resilient peripheral portion that is press-fitted to the valve seat by its elasticity, effectively separating the interior of the housing into low and high-pressure chambers. The snap-action plate responds to the movement of the actuating shaft, rapidly changing a pair of contacts from one position to another. The low-pressure chamber connects to the intake manifold of a combustion engine, while the high-pressure chamber is opened to the atmosphere. When overpressure occurs in the low-pressure chamber, the peripheral portion of the elastic valve separates from the valve seat, providing essential protection.
Career Highlights
Shigewo Ishikawa is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to focus on developing advanced solutions that enhance the efficiency and safety of various systems.
Collaborations
Ishikawa has collaborated with Syozo Yanagisawa, another talented individual in the field. Their partnership has contributed to the development of innovative technologies that address industry challenges.
Conclusion
Shigewo Ishikawa's contributions to pressure responsive switch technology exemplify his commitment to innovation. His patent and work at Hitachi, Ltd. highlight his role as a significant inventor in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile