Location History:
- Ibaraki, JP (1995 - 1996)
- Ibaraki-ken, JP (1996 - 2002)
- Tokyo, JP (2008)
- Minori, JP (2002 - 2012)
Company Filing History:
20 out of 42,517 
2 out of 48 
1 out of 7 Years Active: 1995-2012
Title: **Innovative Contributions of Hirokatsu Kohsokabe**
Introduction
Hirokatsu Kohsokabe is a prominent inventor based in Ibaraki-ken, Japan, known for his significant contributions to the field of compressor technology. With a remarkable portfolio of 23 patents, his innovations have greatly influenced the efficiency and functionality of mechanical devices.
Latest Patents
Among his latest inventions is a groundbreaking displacement type compressor equipped with a self-start synchronous motor and a start load reducing mechanism. This innovative design addresses the challenge of ensuring reliable startup of the compressor without enlarging its external dimensions. The compressor incorporates a self-start synchronous motor that initially operates as an induction motor, subsequently transitioning to synchronous operation by executing a synchronization pull-in at nearly synchronous rotational frequency. Its compression chamber, designed to compress a working fluid, is housed within a hermetic container alongside the motor. This inventive compressor also features a start load reducing means that minimizes the load on the compression part during startup, enhancing its operational efficiency.
Career Highlights
Hirokatsu Kohsokabe has built a career with esteemed firms, including Hitachi, Ltd. and Hitachi Appliances, Inc. His work at these organizations has been instrumental in the development of advanced technologies in the field of compression and energy-efficient systems.
Collaborations
Throughout his career, Hirokatsu has collaborated with notable professionals in the industry, including Masahiro Takebayashi and Hiroaki Hata. These collaborations have fostered an environment of innovation and have enabled the exchange of ideas leading to groundbreaking advancements in their respective fields.
Conclusion
Hirokatsu Kohsokabe's inventive spirit and his impressive collection of patents reflect his dedication to innovation in compressor technology. His work not only enhances the efficiency of mechanical devices but also contributes to the broader field of engineering, showcasing the importance of creativity and collaboration in driving technological advancements.