Location History:
- Ohmuta, JP (1991 - 1993)
- Omuta, JP (1994)
Company Filing History:
Years Active: 1991-1994
Title: Zunzi Tashima: Innovator in Polyphenylene Chemistry
Introduction
Zunzi Tashima is a notable inventor based in Ohmuta, Japan. He has made significant contributions to the field of polyphenylene chemistry, holding a total of 3 patents. His work focuses on improving the production processes of methylene-crosslinked polyphenylene compounds.
Latest Patents
Tashima's latest patents include a process for the production of methylene-crosslinked polyphenylene polyisocyanate. This innovative method enhances the hue of the polyisocyanate produced by reacting phosgene with a polyamine mixture derived from aniline and formaldehyde. The process involves removing residual phosgene and applying heat treatment in the presence of hydrogen chloride gas. Another significant patent is a fractionation process for a reaction mixture containing methylene bridged polyphenylene polyisocyanate. This process separates the mixture into fractions, focusing on the content of specific isomers while minimizing impurities.
Career Highlights
Zunzi Tashima is currently employed at Mitsui Toatsu Chemicals, Incorporated, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the applications of polyphenylene compounds in various industries.
Collaborations
Tashima has collaborated with esteemed colleagues such as Noritoshi Ishida and Takashi Nagou. Their combined expertise has contributed to the successful development of innovative chemical processes.
Conclusion
Zunzi Tashima's contributions to polyphenylene chemistry exemplify the impact of innovative thinking in the field. His patents reflect a commitment to improving production processes and enhancing the quality of chemical products.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.