Location History:
- Annaka, JP (1999)
- Niigata, JP (2015)
Company Filing History:
Years Active: 1999-2015
Title: **Masayuki Hasegawa: Innovating Chlorosilane Purification and Treatment**
Introduction
Masayuki Hasegawa is a notable inventor based in Niigata, Japan, recognized for his contributions to the field of chlorosilane purification and treatment. With a total of two patents to his name, Hasegawa has significantly advanced the methods used in chemical processing, particularly concerning silane compounds.
Latest Patents
Hasegawa's latest innovations include two important patents:
1. **Method for Purifying Chlorosilanes** - This innovative method comprises several steps, including a hydrogenation and/or chlorination step, an impurity conversion step, and a purification step. The impurity conversion step involves the addition of an aldehyde compound represented by the general formula Ar—R—CHO, where Ar denotes an aryl group and R denotes an organic group containing two or more carbon atoms. This process effectively converts donor and acceptor impurities present in a chlorosilane distillate into a high-boiling substance. Subsequently, the distillate is sent to a purification step where high purity chlorosilanes are obtained using techniques such as distillation, allowing for recovery from the system.
2. **Method for Treating Silane-Containing Gas** - This method involves treating a silane-containing gas by contacting it with a liquid that contains silanes or disilanes, which have a higher boiling point than the silanes in the gas. This approach simplifies the removal or reduction of silanes, facilitating their recovery.
Career Highlights
Throughout his career, Masayuki Hasegawa has worked with renowned companies such as Shin-Etsu Chemical Co., Ltd. His contributions in these roles have been pivotal in enhancing chemical manufacturing processes, particularly in the semiconductor and electronic industries.
Collaborations
Hasegawa has collaborated with esteemed professionals in the field, including Kazuo Ogiwara and Hiroyuki Kobayashi. These partnerships have fueled innovation through shared expertise and insights.
Conclusion
Masayuki Hasegawa's innovations in chlorosilane purification and treatment illustrate his significant impact on the field of chemical engineering. Through his patented processes and collaborations, Hasegawa continues to pave the way for advancements in chemical manufacturing, ensuring higher efficiency and sustainability in the industry. His work stands as a testament to the importance of continued innovation in the ever-evolving realm of technology.