Location History:
- Kanagawa, JP (1987 - 2004)
- Yokohama, JP (1988 - 2004)
Company Filing History:
9 out of 1,232 
1 out of 182 
Years Active: 1987-2004
Title: Chiharu Umetsu: Innovator in Accumulator Technology
Introduction
Chiharu Umetsu is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of accumulator technology, holding a total of 9 patents. His innovative designs focus on enhancing the safety and efficiency of hydraulic systems.
Latest Patents
Umetsu's latest patents include an accumulator featuring a safety valve. This design incorporates a pressure vessel with a bellows that divides the interior into a gas chamber and a liquid chamber. The safety valve is strategically placed within a stay member, ensuring that it does not compromise the sealing capability of the pressure vessel. Another patent describes an accumulator with a cylindrical shell that includes a partitioning member to separate the hydraulic and gas chambers. This design allows for the accommodation of pressure variations in hydraulic fluids through the expansion and compression of gas.
Career Highlights
Throughout his career, Chiharu Umetsu has worked with prominent companies such as NHK Spring Co., Ltd. and Honda Giken Kogyo Co., Ltd. His experience in these organizations has contributed to his expertise in accumulator technology and hydraulic systems.
Collaborations
Umetsu has collaborated with notable colleagues, including Hiroshi Mizukami and Koichiro Yamada. These partnerships have fostered innovation and development in his field.
Conclusion
Chiharu Umetsu's contributions to accumulator technology demonstrate his commitment to innovation and safety in hydraulic systems. His patents reflect a deep understanding of engineering principles and a dedication to improving existing technologies.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.