Company Filing History:
2 out of 29 
1 out of 614 
Years Active: 1979-1984
Title: Innovations of Hiroyoshi Omokawa
Introduction
Hiroyoshi Omokawa is a notable inventor based in Utsunomiya, Japan. He has made significant contributions to the field of herbicidal compositions, holding a total of three patents. His work focuses on developing novel compounds that exhibit excellent herbicidal effects while maintaining low phytotoxicity against rice plants.
Latest Patents
Omokawa's latest patents include the N-(2,3-Epoxypropylene)-n-aralkylsulfonamide and herbicidal compositions. This compound demonstrates a unique formula where R^1 can be an alkyl group, a haloalkyl group, an aralkyl group, or an aryl group, which may be substituted. The physiological selectivity between rice plants and weeds is a key feature of this invention. Another significant patent involves novel benzenesulfonamide derivatives, which are produced through various chemical reactions. These compounds are particularly useful as active ingredients in herbicides, especially for application in aquatic rice paddies.
Career Highlights
Throughout his career, Omokawa has worked with esteemed organizations such as Utsunomiya University and Mitsubishi Chemical Industries Limited. His research and innovations have contributed to advancements in agricultural chemistry, particularly in herbicide development.
Collaborations
Some of his notable coworkers include Tetsuo Takematsu and Makoto Konnai. Their collaborative efforts have further enhanced the impact of Omokawa's inventions in the field.
Conclusion
Hiroyoshi Omokawa's innovative work in herbicidal compositions showcases his dedication to improving agricultural practices. His patents reflect a commitment to developing effective solutions that benefit both farmers and the environment.