Location History:
- Yokohama, JP (1990 - 1991)
- Kawasaki, JP (1995 - 2000)
- Kanagawa, JP (2001)
- Tokyo, JP (2001 - 2002)
Company Filing History:
Years Active: 1990-2002
Title: The Innovative Contributions of Sumio Soya
Introduction
Sumio Soya is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of chemistry, particularly in the development of various chemical compounds. With a total of 8 patents to his name, Soya's work has had a considerable impact on pharmaceuticals, agrochemicals, and other industries.
Latest Patents
One of Soya's latest patents is a process for producing cyanobenzoic acid derivatives. This innovative process allows for the production of a cyanobenzoic acid compound, a cyanobenzamide compound, an alkyl cyanobenzoate compound, and a cyanobenzoyl chloride compound. These compounds serve as useful intermediates for a variety of chemicals, including pharmaceuticals and functional polymers. The method involves selectively hydrolyzing one nitrile group of an easily available phthalonitrile compound, resulting in a cyanobenzamide compound with high selectivity and yield. Furthermore, this compound can be transformed under acidic conditions into a cyanobenzoic acid compound and a cyanobenzoate ester compound without damaging the cyano group of the benzene ring.
Another significant patent by Soya is related to L-ascorbic acid-2-phosphoric acid potassium crystals. This patent describes a method for producing high-purity L-ascorbic acid-2-phosphoric acid potassium crystals that exhibit excellent stability. The production method involves adding a solution containing L-ascorbic acid-2-phosphoric potassium to methanol or simultaneously mixing methanol with the solution. The resulting crystals are valuable for use in feedstuff, cosmetic materials, medical products, and food additives.
Career Highlights
Throughout his career, Sumio Soya has worked with prominent companies, including Showa Denko K.K. and Showa Denko Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in chemical innovation and patent development.
Collaborations
Soya has collaborated with notable colleagues such as Makoto Saito and Tohru Yamamoto. These partnerships have likely enhanced his research and development efforts, leading to the successful creation of his patented processes.
Conclusion
Sumio Soya's contributions to the field of chemistry through his innovative patents demonstrate his commitment to advancing chemical processes and products. His work continues