Location History:
- Hiratsuka, JA (1977)
- Hiratsuka, JP (1978 - 1999)
- Omura, JP (1998 - 2000)
- Nagasaki, JP (2010)
- Kanagawa, JP (1999 - 2011)
Company Filing History:
17 out of 142 
2 out of 15 
1 out of 1 
Years Active: 1977-2011
Title: **Yoshinobu Hiraishi: Innovator in Single Crystal Production**
Introduction
Yoshinobu Hiraishi, an accomplished inventor based in Omura, Japan, holds 22 patents to his name. His innovative work primarily focuses on advancements in single crystal production, employing methods that significantly enhance production efficiency and quality.
Latest Patents
One of Hiraishi's notable patents details an apparatus for pulling single crystals using the Czochralski (CZ) method. This invention features a CZ single crystal puller equipped with a cooler and a thermal insulation member, strategically placed within a CZ furnace. The design allows for smooth recharge and additional material charging, addressing a key challenge in the process. Moreover, his approach facilitates the smooth elimination of dislocations from a silicon seed crystal through the application of Dash's neck method. This advancement provides an innovative solution by enabling immediate upward movement of the cooler and thermal insulation member away from the melt surface during critical operations such as charging or dislocation elimination.
Career Highlights
Throughout his career, Yoshinobu Hiraishi has contributed significantly to the field of materials science. His experience includes working with esteemed companies known for their commitment to innovation, such as Komatsu Electronic Metals Co., Ltd. and Komatsu Denshi Kinzoku Kabushiki Kaisha. These roles have allowed him to refine his skills and contribute to groundbreaking developments in crystal growth technologies.
Collaborations
Hiraishi has also collaborated with notable figures in the industry, including Mitsunori Kawabata and Koichi Shimomura. These collaborations reflect a shared commitment to advancing technology in crystal manufacturing, enhancing both research and practical applications.
Conclusion
Yoshinobu Hiraishi's innovative contributions to the field of single crystal production exemplify the spirit of invention. With 22 patents and a robust collaborative network, he continues to influence the advancement of technologies that are pivotal in the world of semiconductor materials. His dedication to innovation not only furthers the capabilities of existing technology but also sets the foundation for future breakthroughs in the industry.