Location History:
- Nishinomiya, JP (1994)
- Kobe, JP (1995)
Company Filing History:
Years Active: 1994-1995
Title: **Toshiyuki Fujiwara: Innovator in Crystal Growth Technologies**
Introduction
Toshiyuki Fujiwara is a distinguished inventor based in Nishinomiya, Japan, known for his significant contributions to the field of crystal growth technologies. With a total of two patents to his name, he has developed advanced methods and apparatuses that are crucial in the production of high-quality single crystals.
Latest Patents
Fujiwara's latest innovations include the following patents:
1. **Method of Growing Crystal** - This inventive method involves filling a crucible with single crystal material and melting it to incorporate doping impurities. The process allows for a solid layer to coalesce upwards from the bottom of the crucible, which then coexists with the melted layer. By carefully adjusting the weight ratios of the layers during the pulling of the single crystal, the growth of the crystal is effectively managed, allowing for variations in the melted layer's volume.
2. **Apparatus and Method of Growing Single Crystal** - This apparatus is designed for the efficient growth of single crystals. It features a crucible, dual heaters positioned along the vertical axis, and a series of shields to manage heat radiation. The design allows for a thin lower heat shield and controls the melting process of the solid layer while maintaining the integrity of the single crystal being pulled. Additionally, the process enables fine control of the oxygen concentration in the resulting single crystal by manipulating the rotation of the crucible.
Career Highlights
Toshiyuki Fujiwara works at Sumitomo Metal Industries, Inc., a leading company in the metal and materials sector. His career is marked by a commitment to advancing crystal growth techniques, which have applications in various industries, including electronics and materials science.
Collaborations
Throughout his professional journey, Fujiwara has collaborated with notable coworkers, including Sumio Kobayashi and Shunji Miyahara. Their teamwork has proven valuable in refining and developing innovative technologies related to crystal growth.
Conclusion
Toshiyuki Fujiwara stands out as a pivotal figure in the field of crystal growth, with his patents representing significant advancements that continue to influence the industry. His work not only enhances the understanding of crystal growth processes but also paves the way for future innovations in material sciences.