This inventor holds 2 USPTO granted patents and 2 EPO patents. Top assignee: Fujikoki Corporation. Active years: 2012-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2012-2026
Title: Shu Yanagisawa: Inventor of a Pressure Control Valve.
Introduction
Shu Yanagisawa is an inventor based in Tokyo, Japan, associated with Fujikoki Corporation. His patent work includes an invention for controlling pressure in a refrigerant system.
Latest Patents
Yanagisawa is named on 1 patent, titled “Pressure Control Valve.” The invention describes a valve with a chamber, refrigerant inflow and outflow ports, a valve seat, and a pressure-responsive diaphragm that drives the valve body. A sealed pressure chamber contains an inert gas with a thermal expansion coefficient no greater than a specified value. Its internal volume is configured so that the valve reaches a fully open state when chamber pressure rises sufficiently above the pressure at which the valve begins to open.
Career Highlights
Yanagisawa’s patent reflects work on pressure regulation in refrigerant systems. The disclosed design uses the gas-filled sealed chamber and diaphragm to influence valve operation as pressure changes.
Collaborations
Yanagisawa’s listed coworkers include Hiroshi Yokota and Daisuke Watari. The patent information connects his work with Fujikoki Corporation.
Conclusion
Shu Yanagisawa’s patent describes a pressure control valve designed to respond to refrigerant pressure through a diaphragm and a sealed chamber containing inert gas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile