Location History:
- Annaka, JP (1998 - 2002)
- Nishishirakawa-gun, JP (2002)
- Fukushima, JP (2012)
Company Filing History:
Years Active: 1998-2012
Title: Innovations of Kouji Kitagawa: Pioneering Work in Polishing and Crystal Production
Introduction
Kouji Kitagawa, an accomplished inventor based in Fukushima, Japan, has made significant contributions to the fields of polishing technology and single crystal production. With a total of five patents to his name, his innovative work showcases his commitment to advancing industrial processes.
Latest Patents
Among his latest patents, two stand out for their ingenuity:
1. **Workpiece holder for polishing** - This invention features a workpiece holder body equipped with multiple perforated holes that enable vacuum suction to securely hold a workpiece during polishing. The design incorporates a resin coating on the holding surface, with a coefficient of thermal expansion of 1×10/K or less. The coating, made from epoxy resin filled with silica particles, ensures optimal performance and durability.
2. **Apparatus for producing single crystals and method for producing single crystals** - This advanced apparatus addresses the challenges of vibration management in the production of single crystals by the Czochralski (CZ) method. It comprises a crucible for holding a raw material melt, a mechanism for pulling crystals, and a rotational mechanism utilizing a ball spline for effective power transmission. This innovative design minimizes vibration transfer, leading to improved crystal quality.
Career Highlights
Kouji Kitagawa’s career is marked by his influential role at Shin-Etsu Handotai Co., Ltd., a leading company in the production of semiconductor materials. His dedication to research and development has propelled numerous advancements in crystal production technologies and polishing applications.
Collaborations
Throughout his career, Kitagawa has collaborated with esteemed colleagues, including Eiichi Iino and Kouji Mizuishi. Their collective expertise and innovative approaches have further strengthened the technological advancements produced by their team.
Conclusion
Kouji Kitagawa exemplifies the spirit of innovation, with his patent contributions significantly impacting the industries of polishing and single crystal production. His work continues to inspire future developments within these critical technological domains.