This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.. Active years: 1982-1986.
Company Filing History:
3 out of 42,726 
1 out of 162 Years Active: 1982-1986
Title: Hiroshi Tsunematsu: Innovator in Plant Control Technologies
Introduction
Hiroshi Tsunematsu is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of plant control technologies, holding a total of 3 patents. His work focuses on improving the efficiency and safety of turbine operations.
Latest Patents
Tsunematsu's latest patents include a method and apparatus for controlling the operation of a turbine plant. This invention computes the saturation pressure corresponding to the temperature in the downcomer pipe, using detected values that represent the conditions of the plant. It aims to control the reduction of the turbine to maintain the pressure in the downcomer pipe higher than the computed saturation pressure, thereby preventing the occurrence of flashing. Another significant patent is for a side stream type condensing system and method of operating the same. This system features a first hot well for condensing steam exhausted from a turbine and storing the condensed water, along with a second hot well for storing purified condensed water. The design includes a partition plate with a weir portion to maintain a fixed water level, ensuring efficient operation and water management.
Career Highlights
Throughout his career, Tsunematsu has worked with prominent companies such as Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in plant control technologies.
Collaborations
Tsunematsu has collaborated with notable coworkers, including Takeshi Ueno and Keiichi Toyoda. Their combined expertise has contributed to the advancement of technologies in their field.
Conclusion
Hiroshi Tsunematsu is a distinguished inventor whose work in plant control technologies has led to significant advancements in turbine operation efficiency and safety. His contributions continue to impact the industry positively.