Company Filing History:

8 out of 138

Otsuka Kagaku Kabushiki Kaisha

patents

5 out of 45

Otsuka Kagaku Yakuhin Kabushiki Kaisha

patents

1 out of 167

Otsuka Chemical Co., Ltd.

patents

Years Active: 1979-1996

Loading Chart...

14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5527798 - Pyridazinone derivatives, and insecticidal and miticidal composition (1996-06-18),

2. 5298500 - Pesticidal (1994-03-29),

3. 4920142 - Fungicidal imidazole derivatives (1990-04-24),

4. 4840957 - Pyran derivatives (1989-06-20),

5. 4746673 - Fungicidal imidazol-1-yl-carboxylic acid ester derivatives (1988-05-24),

6. 4742078 - Pyran derivatives (1988-05-03),

7. 4736053 - Phosphoric ester derivatives and insecticidal and miticidal compositions (1988-04-05),

8. 4608367 - .gamma.-Pyrone phosphoric ester derivatives and insecticidal and (1986-08-26),

9. 4540708 - Sulfenyl carbamate derivatives and insecticidal compositions containing (1985-09-10),

10. 4532339 - Process for purifying aminosulfenylcarbamate derivatives (1985-07-30),

11. 4444786 - Carbamate derivatives, insecticidal, miticidal or nematocidal (1984-04-24),

12. 4413005 - Carbamate derivatives and insecticidal, miticidal or nematocidal (1983-11-01),

13. 4334066 - Heterocyclic containing 5-oxo pyrans (1982-06-08),

14. 4150039 - 2,2'-Bis(3,4-Epoxy-5-oxotetrahydropyran)ethers (1979-04-17),

Title: **Inventor Hisashi Takao: A Pioneer in Pest Control Innovations**

Introduction

Hisashi Takao is a notable inventor based in Tokushima, Japan. With an impressive portfolio of 14 patents, he has made significant contributions to the field of pest control through innovative chemical formulations.

Latest Patents

Among his latest creations, Hisashi Takao has developed pyridazinone derivatives along with an insecticidal and miticidal composition. This invention discloses a phosphoric acid ester derivative characterized by a specific general formula, where R¹, R², and R³ are lower alkyls, X¹ and X² can be hydrogen or halogen atoms, and Y could either be an oxygen or sulfur atom. The phosphoric acid ester derivatives exhibit excellent residual activity as insecticides and miticides while maintaining low toxicity to warm-blooded animals, marking a significant advancement in the area of safe pest control.

Career Highlights

Throughout his career, Hisashi Takao has held significant positions in major organizations such as Otsuka Chemical Co., Ltd. and Otsuka Pharmaceutical Co., Ltd. His work in these companies has laid the foundation for numerous innovations in agricultural chemistry, specifically targeting pest management solutions.

Collaborations

Hisashi has collaborated with talented individuals like Norio Yasudomi and Norio Osaki. These partnerships have enabled fruitful discussions and exchanges of ideas, contributing to the development of new chemical products and enhancing the effectiveness of pest control methodologies.

Conclusion

With a robust portfolio and a commitment to innovation, Hisashi Takao has firmly established himself as a leader in the field of pest control. His inventive spirit and collaborative work continue to pave the way for advancements that not only enhance agricultural productivity but also promote environmental safety.

This text is generated by artificial intelligence and may not be accurate.

Please report any incorrect information to support@idiyas.com

Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.