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For the Inventor, By the Inventor

Funabashi, Japan

Tatsuo Numata

This inventor holds 8 USPTO granted patents. Top assignee: Nissan Chemical Industries Limited. Active years: 1984-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Numata. Retrieved from https://idiyas.com/inventor/tatsuo-numata-x9o1ulcj

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 5.6

ph-index = 3

Forward Citations = 37(Granted Patents)


Company Filing History:

goldMedal8 out of 1,235 
 
Nissan Chemical Industries Limited
 patents

Years Active: 1984-1994

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8 patents (USPTO):Explore Patents
1. 5278163 - Pyridazinone derivatives and compositions for controlling and/or (1994-01-11),
2. 4945091 - 3(2H)-pyridazinone compounds derivatives and compositions for (1990-07-31),
3. 4908379 - Nitrogen-containing heterocyclic compounds and compositions for (1990-03-13),
4. 4837345 - Process for the production of tetrahydropyran-3-one derivatives (1989-06-06),
5. 4824474 - Quinoline derivatives and herbicidal compositions and method of use (1989-04-25),
6. 4696694 - Pyridine derivatives and their herbicidal compositions (1987-09-29),
7. 4508561 - 1-Phenylethyl sulfone derivatives of 2-pyridyl-N-oxides and herbicidal (1985-04-02),
8. 4462994 - N-Containing heterocyclic ring-substituted O-arylphosphate derivatives, (1984-07-31),

Title: Innovations by Tatsuo Numata: Pioneering Pyridazinone Derivatives

Introduction

Tatsuo Numata, an accomplished inventor based in Funabashi, Japan, has made significant contributions to the field of chemical innovations. With a remarkable portfolio of 8 patents, his work primarily focuses on the development of novel compounds that serve essential agricultural and horticultural purposes.

Latest Patents

Numata's latest patents feature innovative pyridazinone derivatives. One of his notable inventions is a pyridazinone derivative characterized by a specific chemical formula, where R represents various alkyl, cycloalkyl, phenyl, or heterocyclic groups. Similarly, R' can denote hydrogen, halogen, alkoxy, or hydroxyl groups. These derivatives stand out for their utility as active ingredients in insecticidal, acaricidal, and nematicidal compositions, offering effective solutions for pest control on crops and animals.

Another patent details a 3(2H)-pyridazinone derivative with a different chemical structure, where R signifies alkenyl or alkynyl groups, along with possible alkyl substitutions. This creativity in chemical formulation highlights Numata's dedication to agricultural innovations that address pest-related challenges effectively.

Career Highlights

Numata is currently employed at Nissan Chemical Industries Limited, a leading firm known for its commitment to chemical innovation and quality. His work not only enhances the company’s product portfolio but also underscores the importance of research and development in creating sustainable agricultural solutions.

Collaborations

Throughout his career, Tatsuo Numata has collaborated with esteemed coworkers like Masataka Hatanaka and Junichi Watanabe. These partnerships within Nissan Chemical Industries Limited signify a collaborative approach to innovation, combining diverse expertise to propel the development of new and effective chemical entities.

Conclusion

Tatsuo Numata's advancements in the realm of pyridazinone compounds reflect the ongoing commitment to innovation in agriculture and pest control. His patents embody the spirit of discovery and provide valuable insights into the application of chemistry for enhancing agricultural productivity. As he continues to work with leading experts in the field, Numata remains a significant figure in the domain of chemical inventions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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