Location History:
- Yokohama, JP (1991 - 1992)
- Tokyo, JP (1989 - 1994)
Company Filing History:
8 out of 614 
1 out of 189 
1 out of 487 Years Active: 1989-1994
Title: The Innovative Journey of Yoshinobu Shima
Introduction
Yoshinobu Shima, a distinguished inventor based in Tokyo, Japan, is celebrated for his significant contributions to the field of silicon single crystal manufacturing. With a remarkable portfolio of 10 patents, Shima has pioneered innovations that enhance the efficiency and quality of silicon crystal production.
Latest Patents
Among Shima's latest patents, two noteworthy inventions stand out. The first is the "Silicon Single Crystal Manufacturing Apparatus," designed to produce large-diameter silicon single crystals through the Czochralski process. This apparatus features strategically placed openings to mitigate adverse effects from atmospheric gases. Importantly, the total area of these openings surpasses the gap area formed between the warmth retaining cover and the silicon solution.
The second patent is a "Crucible for Manufacturing Single Crystals," which includes a cylindrical partition member concentrically arranged within the crucible. This design ensures structural integrity, with the bottom of the crucible having a specific thickness ratio to the partition member and controlled porosity in its layers, allowing for a dislocation-free ratio of over 80%.
Career Highlights
Yoshinobu Shima has established a reputable career, contributing his expertise to notable companies such as NKK Corporation and Toshiba Ceramics Co., Ltd. His work has been critical in advancing technologies that cater to the semiconductor industry and beyond.
Collaborations
Throughout his career, Shima has had the privilege of collaborating with talented professionals, including Kenji Araki and Hiroshi Kamio. These partnerships have fostered a creative environment leading to innovative solutions and groundbreaking inventions.
Conclusion
Yoshinobu Shima's dedication to innovation in silicon crystal manufacturing exemplifies the essence of modern inventorship. With his remarkable patents and collaborative efforts, he continues to influence the technological landscape, paving the way for future advancements in the field.