Company Filing History:
1 out of 173 
1 out of 167 
Years Active: 1994
Title: Tsohikazu Maruyama: Innovator in Bisphenol A Production
Introduction
Tsohikazu Maruyama is a notable inventor based in Kitakyushu, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of bisphenol A. His innovative processes have enhanced the efficiency and quality of this important chemical compound.
Latest Patents
Maruyama holds a patent for a process for preparing prilled bisphenol A. This invention involves granulation techniques that include adding specific compounds to molten bisphenol A. These compounds do not adversely affect the melt color of bisphenol A and have a melting point of 60 degrees Celsius or more. The process also incorporates the use of reaction mother liquor or crystallization mother liquor from the manufacturing step of bisphenol A, which is added to bisphenol A or its adduct with phenol. The resulting prilled bisphenol A exhibits high strength and resistance to powdering, making it a valuable product in various applications.
Career Highlights
Throughout his career, Maruyama has worked with prominent companies in the chemical industry. Notably, he has been associated with Nippon Steel Chemical Co., Ltd. and Chiyoda Corporation. His work in these organizations has allowed him to develop and refine his innovative processes, contributing to advancements in chemical manufacturing.
Collaborations
Maruyama has collaborated with esteemed colleagues such as Hiroshi Yanai and Tadayoshi Matsuo. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas in the field of chemical engineering.
Conclusion
Tsohikazu Maruyama's contributions to the production of bisphenol A through his patented processes highlight his role as an influential inventor in the chemical industry. His work continues to impact the efficiency and quality of chemical manufacturing.