Company Filing History:

9 out of 191

Sagami Chemical Research Center

patents

8 out of 136

Kaken Pharmaceutical Company, Ltd.

Nippon Mining Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1989-1997

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9 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 5639915 - Process for the production of aniline derivatives (1997-06-17),

2. 5554581 - Tetrahydrophthalamide derivative, intermediate for producing the same, (1996-09-10),

3. 5506190 - Tetrahydrophthalamide derivative, intermediate for producing the same, (1996-04-09),

4. 5464811 - Benzene derivatives substituted with heterocyclic ring and herbicides (1995-11-07),

5. 5424277 - Benzene derivatives substituted with heterocyclic ring, and herbicides (1995-06-13),

6. 5391807 - Methods of preparing fluorobenzene derivatives and related compounds (1995-02-21),

7. 5344953 - Fluorobenzene derivatives (1994-09-06),

8. 5281742 - Bis(fluorophenyl) carbonate derivatives (1994-01-25),

9. 4861917 - Process for preparing macrocyclic 2-halogenoketones (1989-08-29),

Title: Emiko Ejiri: Innovator in Herbicide Development

Introduction

Emiko Ejiri is a prominent inventor based in Kanagawa, Japan. She has made significant contributions to the field of herbicide development, holding a total of nine patents. Her work focuses on the production of aniline derivatives and their applications in agriculture.

Latest Patents

Among her latest patents is a process for the production of aniline derivatives, specifically tetrahydrophthalamide derivatives. These compounds are recognized for their excellent herbicidal activity, particularly in soil treatment for paddy fields and field crops. The invention details the preparation of tetrahydrophthalamide derivatives through the reaction of halogen-substituted 5-cycloalkyloxyaniline derivatives with 3,4,5,6-tetrahydrophthalic anhydride. The resulting tetrahydroisophthalimide derivatives also serve as intermediates for producing tetrahydrophthalamide derivatives, showcasing their versatility and effectiveness in herbicide applications.

Career Highlights

Emiko has worked with notable organizations such as Sagami Chemical Research Center and Kaken Pharmaceutical Company, Ltd. Her experience in these companies has allowed her to refine her expertise in chemical research and development.

Collaborations

Throughout her career, Emiko has collaborated with esteemed colleagues, including Kenji Hirai and Tomoyuki Yano. These partnerships have contributed to her innovative research and the successful development of her patented technologies.

Conclusion

Emiko Ejiri stands out as a leading inventor in the field of herbicide development, with a strong portfolio of patents that reflect her dedication to innovation. Her contributions continue to impact agricultural practices positively.

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