Location History:
- Tochigi, JP (1991 - 1993)
- Shimotsuga-gun, JP (1998 - 2002)
- Oohira, JP (2003)
- Tochigi-ken, JP (1996 - 2006)
- Ohira-machi, JP (2008)
Company Filing History:
Years Active: 1991-2008
Title: Koichi Sekiguchi: Innovator in Scroll Compressor Technology
Introduction: Koichi Sekiguchi, based in Tochigi-ken, Japan, is a notable inventor with an impressive portfolio of 19 patents. His contributions to the field of compressor technology have significantly enhanced the efficiency and reliability of scroll compressors. As a key member of Hitachi, Ltd., he has made strides in innovating solutions that cater to a wide array of operating pressures.
Latest Patents: Among his latest innovations is the patent for a scroll compressor that features a valved back pressure chamber and a bypass for overcompression. This design provides high overall adiabatic efficiency and ensures reliability across a broad range of pressure operations. The invention incorporates a backside excess-suction-pressure region, where pressure is applied to the back of the scroll members, generating an attractive force that stabilizes their position. Furthermore, a control bypass is implemented to connect the compression chambers with a discharge system, but only when the pressure within the chambers is elevated, enhancing operational safety and performance.
Career Highlights: Koichi Sekiguchi has established himself as a vital inventor within Hitachi, Ltd., focusing on advancements in compressor technology. His work not only showcases technical expertise but also reflects a commitment to innovation, contributing significantly to modern refrigeration and air conditioning systems.
Collaborations: Throughout his career, Sekiguchi has collaborated with notable colleagues, including Isamu Tsubono and Koichi Inaba. Their teamwork has fostered an environment of creativity and innovation, allowing for the successful development of cutting-edge compressor solutions.
Conclusion: Koichi Sekiguchi’s dedication to innovation in scroll compressor technology, as demonstrated through his extensive patent portfolio, illustrates his impact on the industry. His collaborative spirit and continuous pursuit of improvement at Hitachi, Ltd. mark him as a leading figure in the field of compressor design, ensuring a legacy of advancements that enhance efficiency and reliability in various applications.