Location History:
- Yamaguchi, JP (1993 - 2008)
- Saitama, JP (2000 - 2011)
- Tokyo, JP (2016)
Company Filing History:
10 out of 1,001 
1 out of 832,843 Years Active: 1993-2025
Title: Mitsuya Ohashi: Innovator in Chemical Manufacturing
Introduction
Mitsuya Ohashi is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of chemical manufacturing, particularly in the production of tungsten hexafluoride and lithium hexafluorophosphate. With a total of 11 patents to his name, Ohashi's work has had a notable impact on the industry.
Latest Patents
Ohashi's latest patents include a tungsten hexafluoride manufacturing method and a tungsten hexafluoride purification method. The tungsten hexafluoride manufacturing method involves a reaction step where tungsten containing arsenic or an arsenic compound reacts with a gas of a fluorine element-containing compound. This process results in a mixture that contains tungsten hexafluoride and a trivalent arsenic compound. The subsequent distillation step purifies the mixture, allowing for the separation and removal of the trivalent arsenic compound to obtain pure tungsten hexafluoride. Additionally, he has developed a method for producing a lithium hexafluorophosphate concentrated liquid. This method entails reacting phosphorus trichloride, chlorine, and lithium chloride in a nonaqueous organic solvent, followed by a reaction with hydrogen fluoride. The process is characterized by the filtration of the reaction product, leading to the production of a high-purity lithium hexafluorophosphate concentrated liquid at a low cost.
Career Highlights
Throughout his career, Mitsuya Ohashi has worked with notable companies, including Central Glass Company, Limited. His innovative approaches and dedication to research have established him as a key figure in the chemical manufacturing sector.
Collaborations
Ohashi has collaborated with esteemed colleagues such as Tetsuya Tamura and Isamu Mouri. Their combined expertise has contributed to the advancement of chemical processes and technologies.
Conclusion
Mitsuya Ohashi's contributions to the field of chemical manufacturing are significant and impactful. His innovative patents and collaborations highlight his dedication to advancing technology in this area.