Company Filing History:

9 out of 1,432

Ube Industries, Inc.

patents

5 out of 613

Sankyo Company, Limited

patents

1 out of 58

Hokko Chemical Industry Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1977-1984

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4464375 - 4-Anilinoquinazoline compounds and pharmaceutical compositions thereof (1984-08-07),

2. 4421761 - Thiophene derivatives (1983-12-20),

3. 4323680 - 4-Aminoquinazoline compounds useful as agricultural fungicides (1982-04-06),

4. 4322420 - Method of using 4-anilinoquinazoline derivatives as analgesic and (1982-03-30),

5. 4304778 - 4-Aminoquinazoline derivatives having fungicidal, anti-insect and (1981-12-08),

6. 4213987 - Agricultural fungicidal method (1980-07-22),

7. 4213775 - Diphenyl ether derivatives and herbicidal compositions containing the (1980-07-22),

8. 4048236 - Process for preparing o-alkoxy-p-allylphenols (1977-09-13),

9. 4025566 - Process for preparing monoalkyl ethers of dihydric phenols (1977-05-24),

Title: Shigeki Nagai: Innovator in Pharmaceutical Chemistry

Introduction

Shigeki Nagai is a prominent inventor based in Ube, Japan. He has made significant contributions to the field of pharmaceutical chemistry, holding a total of 9 patents. His work primarily focuses on the development of novel compounds with therapeutic applications.

Latest Patents

Among his latest patents are the 4-Anilinoquinazoline compounds and pharmaceutical compositions thereof. These compounds are characterized by the formula (I), where R¹ can represent a hydrogen atom, a halogen atom, a trifluoromethyl group, or a nitro group. Additionally, he has developed thiophene derivatives that are useful as fungicides, described by a specific formula where X, Y, and Z are defined.

Career Highlights

Shigeki Nagai has had a distinguished career, working with notable companies such as Ube Industries, Inc. and Sankyo Company, Limited. His expertise in pharmaceutical chemistry has led to advancements in drug development and innovative therapeutic solutions.

Collaborations

Throughout his career, Shigeki has collaborated with esteemed colleagues, including Takeo Honda and Kiroku Oda. These partnerships have fostered a collaborative environment that has enhanced the quality and impact of his research.

Conclusion

Shigeki Nagai's contributions to pharmaceutical chemistry and his innovative patents underscore his role as a leading inventor in the field. His work continues to influence the development of new therapeutic compounds, showcasing the importance of innovation in healthcare.

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