This inventor holds 4 USPTO granted patents. Top assignee: Nkk Corporation. Active years: 1992-1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1992-1993
Title: Akihiro Kawashima: Innovator in Silicon Crystal Technology
Introduction
Akihiro Kawashima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of silicon crystal technology, holding a total of 4 patents. His innovative approaches have advanced the methods used in the manufacturing of silicon single crystals.
Latest Patents
Kawashima's latest patents include a "Method and apparatus for controlling the diameter of a silicon single crystal." This invention involves a sophisticated method of controlling the diameter of a silicon single crystal during its manufacturing process. By comparing the measured diameter of the pulled single crystal with a desired value, Kawashima's method utilizes incomplete differential PID processing or the Smith method to adjust the pull rate accordingly. This ensures precise control over the diameter of the silicon single crystal.
Another notable patent is the "Method for rectification and apparatus therefor." This invention outlines a process for rectification that includes supplying raw materials to a rectifying column and managing the refluxing of fluids. The apparatus designed for this method features a rectifying column with multiple bottom tanks, allowing for efficient heat exchange and vapor management.
Career Highlights
Kawashima is currently employed at NKK Corporation, where he continues to develop innovative technologies in his field. His work has not only contributed to advancements in silicon crystal manufacturing but has also positioned him as a key figure in the industry.
Collaborations
Throughout his career, Kawashima has collaborated with notable colleagues, including Tatsuo Sato and Toshio Okawa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Akihiro Kawashima's contributions to silicon crystal technology through his patents and collaborative efforts highlight his role as a leading inventor in the field. His innovative methods continue to influence the manufacturing processes of silicon single crystals, showcasing the importance of his work in advancing technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile