Location History:
- Shinjuku, JP (1993)
- Tokyo, JP (1999 - 2001)
Company Filing History:
Years Active: 1993-2001
Title: Hirotake Shigemi: Innovator in Membrane Technology
Introduction
Hirotake Shigemi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of membrane technology, particularly in the development of spiral wound type membrane modules. With a total of 3 patents to his name, Shigemi's work has advanced the efficiency and effectiveness of water treatment processes.
Latest Patents
Shigemi's latest patents include a method of operating spiral wound type membrane modules. This innovative method involves forming a module with multiple membranes wound around an axis, creating feed water channels. The design allows feed water to flow into the channels and nonpermeated water to exit from the rear end of the roll. The operation is optimized by maintaining a differential pressure of 0.3 kg/cm or less, ensuring maximum permeate flux during continuous feed water supply.
Another notable patent is the spiral wound type membrane module itself. This module is constructed by winding membranes onto a shaft with the aid of outer spacers. An inner spacer is also included to facilitate the flow of raw water, which enters the channels between the membranes. The design allows for efficient water permeation and collection, enhancing the overall performance of water treatment systems.
Career Highlights
Hirotake Shigemi is currently associated with Kurita Water Industries Ltd., a company known for its innovative solutions in water treatment and management. His work at Kurita has positioned him as a key player in advancing membrane technology, contributing to the company's reputation for excellence in the industry.
Collaborations
Shigemi has collaborated with notable colleagues, including Keiji Uemura and Toshio Totoki. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas, further enhancing the development of advanced membrane technologies.
Conclusion
Hirotake Shigemi's contributions to membrane technology have significantly impacted the field of water treatment. His innovative patents and collaborative efforts continue to drive advancements in this essential area, showcasing his dedication to improving water management solutions.