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For the Inventor, By the Inventor

Toyonaka, Japan

Chiyozo Takayama

This inventor holds 6 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1977-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chiyozo Takayama. Retrieved from https://idiyas.com/inventor/chiyozo-takayama

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 5.1

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Osaka, JA (1977)
  • Toyonaka, JP (1978 - 1980)
  • Sonehigashi, JP (1978 - 1980)

Company Filing History:

goldMedal6 out of 6,960 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1977-1980

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6 patents (USPTO):Explore Patents
1. 4237122 - Imidazolidinedione compounds, and their production and use (1980-12-02),
2. 4181732 - 1-Branched-alkylcarbonyl-3-(3,5-dihalophenyl)imidazolidine-2,4-diones (1980-01-01),
3. 4151290 - Fungicidal (1979-04-24),
4. 4123549 - N-(3,5-dihalophenyl)-.alpha.-spirocycloalkanesuccinimides, and their (1978-10-31),
5. 4110462 - N'-Sulfenyl-N'-dihalophenylimidazolidinediones (1978-08-29),
6. 4056622 - N-sulfonyl-N-dihalophenylimidazolidinediones (1977-11-01),

Title: Chiyozo Takayama: Innovator in Agricultural Chemistry

Introduction

Chiyozo Takayama is a notable inventor based in Toyonaka, Japan. He has made significant contributions to the field of agricultural chemistry, particularly through his innovative work on imidazolidinedione compounds. With a total of 6 patents to his name, Takayama's inventions have the potential to impact agricultural practices positively.

Latest Patents

Among his latest patents, Takayama has developed imidazolidinedione compounds that are useful as agricultural chemicals. These compounds are designed to serve as insecticides, acaricides, nematocides, and fungicides, all while ensuring high safety for mammals and humans. One of his notable inventions includes a branched-alkylcarbonyl-3-(3,5-dihalophenyl)imidazolidine-2,4-dione, which exhibits high fungicidal activity without causing toxicity to mammals and plants. This innovation can be produced by reacting the corresponding 1-unsubstituted compound with a branched alkanecarboxylic acid or a reactive derivative thereof.

Career Highlights

Chiyozo Takayama is currently associated with Sumitomo Chemical Company, Limited, where he continues to advance his research and development efforts. His work has garnered attention for its practical applications in enhancing agricultural productivity and safety.

Collaborations

Takayama has collaborated with esteemed colleagues such as Yoshio Hisada and Toshiro Kato, contributing to a rich environment of innovation and research within his field.

Conclusion

Chiyozo Takayama's contributions to agricultural chemistry through his patented inventions highlight his role as a significant innovator. His work not only advances scientific knowledge but also promotes safer agricultural practices.

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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