Company Filing History:
1 out of 499 
1 out of 614 
Years Active: 1984-1990
Title: Innovations by Inventor Koichi Yoneyama
Introduction
Koichi Yoneyama is a notable inventor based in Utsunomiya, Japan, recognized for his contributions in the field of sulfonamide compounds and herbicides. With two patents to his name, he has made significant strides in developing effective herbicidal compositions that demonstrate physiological selectivity.
Latest Patents
Yoneyama’s latest patents include a sulfonamide compound that is characterized by a specific chemical structure designed for herbicidal applications. The first patent describes a sulfonamide compound represented by a formula where various groups can be substituted to enhance the herbicidal properties. The innovation outlines a herbicidal composition that effectively utilizes this sulfonamide compound.
The second patent revolves around an N-(2,3-epoxypropylene)-N-aralkylsulfonamide. This compound is identified by its unique structure and showcases excellent herbicidal efficacy while exhibiting low phytotoxicity against rice plants. This vital characteristic allows rice plants to thrive while effectively targeting weeds.
Career Highlights
Throughout his esteemed career, Koichi Yoneyama has worked with prominent organizations such as Mitsubishi Kasei Corporation and Mitsubishi Chemical Industries Limited. His tenure in these companies has been instrumental in driving forward innovations in herbicide technology and related chemical compounds.
Collaborations
Yoneyama has collaborated with respected colleagues, including Tetsuo Takematsu and Tetsuo Jikihara. These partnerships have enriched his research endeavors and contributed to the successful development of his patented innovations.
Conclusion
In summary, Koichi Yoneyama stands out as a distinguished inventor in the agricultural chemistry field with his impactful patents on sulfonamide compounds and herbicidal formulations. His work demonstrates a perfect blend of innovation and practicality, paving the way for advancements in herbicidal effectiveness while prioritizing the health of target crops.