This inventor holds 5 USPTO granted patents. Top assignees: Ebara Corporation, Ebara Research Co., Ltd., Kabushiki Kaisha Toshiba. Active years: 1991-2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kamakura, JP (1993)
- Kanagawa-ken, JP (1997)
- Kanagawa, JP (1991 - 2007)
Company Filing History:
5 out of 2,579 
2 out of 32 
1 out of 53,276 
Years Active: 1991-2007
Title: Ken Nakajima: Innovator in Semiconductor and Water Treatment Technologies
Introduction
Ken Nakajima is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the fields of semiconductor manufacturing and water treatment technologies. With a total of five patents to his name, Nakajima's work reflects a commitment to innovation and efficiency.
Latest Patents
One of Nakajima's latest patents is a material supply system designed for semiconductor device manufacturing plants. This system provides a low-cost pure water supply without compromising production efficiency. It produces multiple grades of pure water, which are delivered through pipes to various points of use, such as cleaning, chemical mechanical polishing (CMP), and lithography. The system includes a controller that manages the supply based on demand, ensuring optimal usage of resources.
Another significant patent involves a method and apparatus for producing ozonized water. In this system, pressurized ozone gas is dissolved in water through a porous hollow-fiber membrane. An infinite variable-speed control pump maintains the water pressure inside the hollow fibers, ensuring it remains higher than the ozone gas pressure. This innovation allows for the production of treated water that is free from tiny bubbles and impurities, with controlled concentration, flow rate, and pressure.
Career Highlights
Throughout his career, Ken Nakajima has worked with prominent companies, including Ebara Corporation and Ebara Research Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies in his field.
Collaborations
Some of Nakajima's notable coworkers include Takayuki Saito and Yukio Ikeda. Their collaboration has likely fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
Ken Nakajima's contributions to semiconductor manufacturing and water treatment technologies exemplify his innovative spirit and dedication to improving efficiency. His patents reflect a deep understanding of the challenges in these industries and a commitment to finding effective solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile