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For the Inventor, By the Inventor

Mobara, Japan

Toshiaki Kuwatsuka

This inventor holds 7 USPTO granted patents. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1988-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Kuwatsuka. Retrieved from https://idiyas.com/inventor/toshiaki-kuwatsuka

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 6.5

ph-index = 4

Forward Citations = 36(Granted Patents)


Location History:

  • Yokohama, JP (1988 - 1989)
  • Mobara, JP (1990 - 1993)

Company Filing History:

goldMedal7 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents

Years Active: 1988-1993

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7 patents (USPTO):Explore Patents
1. 5240951 - Isothiazolecarboxylic acid derivatives, rice blast control agents (1993-08-31),
2. 5183927 - Process for the preparation of iodoalkynyl carbamates (1993-02-02),
3. 5136042 - Process for the preparation of thiazolecarboxylic acid chlorides (1992-08-04),
4. 5104886 - Amide derivatives, processes for production thereof, and (1992-04-14),
5. 4980363 - Novel amide derivatives, processes for production thereof, and (1990-12-25),
6. 4814337 - Dihalogen-substituted thiocyanopyrimidine derivatives, and agricultural (1989-03-21),
7. 4792565 - Pyrazolecarbonylamine derivatives and agricultural and horticultural (1988-12-20),

Title: Toshiaki Kuwatsuka: Innovator in Agricultural Chemistry

Introduction

Toshiaki Kuwatsuka is a prominent inventor based in Mobara, Japan. He has made significant contributions to the field of agricultural chemistry, particularly in the development of effective solutions for crop protection. With a total of 7 patents to his name, Kuwatsuka's work has had a substantial impact on rice cultivation practices.

Latest Patents

Kuwatsuka's latest patents include innovative formulations such as isothiazolecarboxylic acid derivatives, which serve as rice blast control agents. These agents demonstrate excellent activity against rice blast (Pyricularia oryzae) when applied to the water surface of paddy rice fields. The absorption of the derivative through the roots of rice plants enhances their resistance to this devastating disease. His patent details a specific formula where R¹ and R² can be a hydrogen or halogen atom or a particular group, while Y represents an OR₃ group, an NHR⁴ group, or a morpholino group.

Another notable patent involves a process for preparing iodoalkynyl carbamates. This method allows for the iodination of an alkynyl carbamate with iodine monochloride in a controlled environment, yielding highly pure iodoalkynyl carbamates that are useful as industrial germicides. The process achieves a remarkable yield of 96 to 98% under specific conditions, showcasing Kuwatsuka's expertise in chemical synthesis.

Career Highlights

Kuwatsuka is currently associated with Mitsui Toatsu Chemicals, Incorporated, where he continues to innovate in the field of agricultural chemicals. His work has not only advanced scientific understanding but has also provided practical solutions for farmers facing challenges in crop protection.

Collaborations

Throughout his career, Kuwatsuka has collaborated with notable colleagues such as Hitoshi Shimotori and Yuji Yanase. These partnerships have fostered a collaborative environment that enhances the development of new agricultural technologies.

Conclusion

Toshiaki Kuwatsuka's contributions to agricultural chemistry through his patents and innovative solutions have made a significant impact on rice cultivation. His work exemplifies the importance of innovation in addressing agricultural challenges and improving crop resilience.

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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