Location History:
- Kashima-machi, JP (1996)
- Ibaraki, JP (2000)
- Kashima, JP (1995 - 2018)
Company Filing History:
3 out of 12 
1 out of 43 
1 out of 1 Years Active: 1995-2018
Title: Keiichi Yokota: Innovator in Chemical Production
Introduction
Keiichi Yokota is a notable inventor based in Kashima, Japan. He has made significant contributions to the field of chemical production, holding a total of 5 patents. His work focuses on methods that enhance the yield and purity of various chemical compounds.
Latest Patents
One of Yokota's latest patents is titled "Composition containing 3-chloro-4-methoxybenzylamine hydrochloride, and method for producing same." This invention provides a method for producing a composition containing 3-chloro-4-methoxybenzylamine hydrochloride (CMBA-HCl) with high purity. The method involves a chlorination step that generates CMBA-HCl from 4-methoxybenzylamine hydrochloride using hydrogen peroxide and hydrochloric acid. Another significant patent is the "Method for producing thiosalicylic acid." This invention describes a method for reacting sodium sulfide or a mixture of sodium sulfide and sulfur with diazonium salt formed by diazotizing anthranilic acid. The Na/S atomic ratio is adjusted during the reaction to ensure high yield without isolating and reducing dithiosalicylic acid.
Career Highlights
Throughout his career, Keiichi Yokota has worked with prominent companies such as Sumikin Chemical Co., Ltd. and Air Water Inc. His expertise in chemical processes has led to advancements in production methods that benefit the industry.
Collaborations
Yokota has collaborated with notable coworkers, including Ikuo Ito and Toshio Sato. Their combined efforts have contributed to the successful development of innovative chemical production techniques.
Conclusion
Keiichi Yokota's contributions to chemical production through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the industry positively.