Location History:
- Ohta, JP (1988)
- Ota, JP (1986 - 1993)
- Gunma-ken, JP (2001)
Company Filing History:
5 out of 8,780 
1 out of 68 Years Active: 1986-2001
Title: The Innovations of Yoshio Ishiai
Introduction
Yoshio Ishiai is a notable inventor based in Ota, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and reliability of refrigeration systems.
Latest Patents
One of his latest patents is a multi-stage compressing refrigeration device. This device is designed for multi-stage compressing a refrigerant using a plurality of compressing means. The primary objective of this invention is to enhance reliability, reduce input, improve refrigeration effect, and enhance overall efficiency. The refrigeration cycle consists of low-stage compressing means, high-stage compressing means, a condenser, first expanding means, an intermediate evaporator, second expanding means, and a main evaporator. The refrigerant flowing out of the condenser is divided into two paths: one leading to the intermediate evaporator via the first expanding means and the other to the main evaporator via the second expanding means. Heat exchange occurs between the refrigerant entering the second expanding means and the intermediate evaporator. Additionally, the refrigerant from the main evaporator is drawn in by the low-stage compressing means, while the refrigerant from the intermediate evaporator is drawn in by the high-stage compressing means, along with the refrigerant discharged from the low-stage compressing means. Another notable invention is a scroll compressor featuring a driving pin between the scrolls and a sliding shaft.
Career Highlights
Yoshio Ishiai has worked with prominent companies such as Sanyo Electric Co., Ltd. and Tokyo Sanyo Electric Co. His experience in these organizations has contributed to his expertise in refrigeration technology and innovation.
Collaborations
Throughout his career, Yoshio has collaborated with talented individuals, including Toshihiko Mitsunaga and Yoshinori Noboru. These collaborations have likely played a role in the development of his innovative patents.
Conclusion
Yoshio Ishiai's contributions to refrigeration technology through his patents demonstrate his commitment to innovation and efficiency. His work continues to influence the industry and improve refrigeration systems worldwide.