Location History:
- Kurata, JP (1989)
- Kurate, JP (1990 - 1993)
- Tokyo, JP (1993)
Company Filing History:
3 out of 65 
1 out of 353 
1 out of 1,530 
Years Active: 1989-1993
Title: Kenji Iio: Innovator in Electromagnetic Technology
Introduction
Kenji Iio is a notable inventor based in Kurate, Japan, recognized for his contributions to electromagnetic technology. With a total of 4 patents, Iio has made significant advancements in the design and functionality of electromagnets and valves.
Latest Patents
One of Iio's latest inventions is a plunger type electromagnet. This device features an attractive plate connected to the plunger, designed with an improved configuration of the plunger and stationary element. It also includes a flanged tubular member of magnetic material affixed to the axial end of a coiling bobbin. This design aims to increase the rate of change in the permeance of the magnetic circuit during attractive operation, thereby enhancing the sensitivity of the electromagnet. Additionally, the surface area of the abutment faces of the stationary and movable elements is calibrated to control the attractive and retaining force. In some embodiments, a permanent magnet shaped like an annulus is included, which is magnetized in the direction of thickness to facilitate magnetization, reduce component parts, and create a compact, lightweight electromagnet suitable for mass production.
Another significant patent is for a valve and solenoid valve that operates with very small force. This invention includes a valve that opens through an improved two-step motion and operates positively without fluid leakage, even with minimal pressure differences between the inlet and outlet. The small-sized opening/closing valve and solenoid valve can be operated using a dry cell or similar power source, making it ideal for automatic opening and closing control in city gas appliances.
Career Highlights
Throughout his career, Kenji Iio has worked with prominent companies such as Mitsubishi Mining and Cement Co. Ltd. and Osaka Gas Company Limited. His experience in these organizations has contributed to his innovative approach to engineering and design.
Collaborations
Iio has collaborated with notable coworkers, including Tokio Uetsuhara and Yuichi Andoh, who have contributed to his projects and inventions.
Conclusion
Kenji Iio's work in the field of electromagnet technology and valve design showcases his innovative spirit and dedication to engineering excellence. His patents reflect a commitment to improving functionality and efficiency in everyday applications.