Company Filing History:
3 out of 8 
1 out of 1 
1 out of 36,546 
Years Active: 1987-1997
Title: Innovations by Toshiaki Imokawa: A Pioneer in Isocyanate Technologies
Introduction
Toshiaki Imokawa, a renowned inventor based in Niihama, Japan, has made significant contributions to the field of chemistry, particularly in the development of processes involving aromatic isocyanates. With a portfolio of four patents, he has demonstrated a commitment to advancing industry standards through innovative solutions.
Latest Patents
Imokawa’s most recent patents include a groundbreaking process for preparing liquid diphenylmethane diisocyanate (MDI). This method involves the addition of a phospholine catalyst and a specific phosphorous acid ester, facilitating an efficient carbodiimidization reaction to yield high-quality liquid MDI. Another notable patent addresses the method for preventing the coloration of aromatic isocyanate compounds. This innovation leverages the use of organic phosphite esters, particularly those derived from hydrocarbon groups and renowned antioxidants, to maintain the compound's integrity and enhance its applications in various industries.
Career Highlights
Throughout his career, Toshiaki Imokawa has been associated with notable companies such as Sumitomo Bayer Urethane Co., Ltd. His tenure at these organizations has allowed him to develop and refine his expertise, leading to significant advancements in the chemical manufacturing sector, particularly in the production of isocyanates.
Collaborations
Imokawa has collaborated with esteemed professionals in the field, including Masaru Honda and Takanori Chiba. These partnerships have facilitated a creative exchange of ideas and expertise, further driving innovation in their respective projects and enhancing the overall quality of their research outcomes.
Conclusion
Toshiaki Imokawa’s contributions to the field of isocyanate technology highlight his role as a pioneering inventor. Through his patents and collaborations, he has significantly impacted the industry, offering novel solutions that are both practical and commercially viable. His work continues to inspire future generations of inventors and researchers in the realm of chemical innovations.
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.