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For the Inventor, By the Inventor

Kusatsu, Japan

Toshio Nakajima

This inventor holds 9 USPTO granted patents. Top assignee: Ishihara Sangyo Kaisha, Ltd.. Active years: 1982-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Nakajima. Retrieved from https://idiyas.com/inventor/toshio-nakajima-3v4exyu8

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 3

Forward Citations = 62(Granted Patents)


Location History:

  • Kusatsu, all of Shiga, JP (1982)
  • Kusatsu, JP (1983)
  • Moriyama, JP (1985)
  • Shiga, JP (1990 - 1991)

Company Filing History:

goldMedal9 out of 394 
 
Ishihara Sangyo Kaisha, Ltd.
 patents

Years Active: 1982-1991

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9 patents (USPTO):Explore Patents
1. 5023336 - Imidazole compound and process for preparing the same (1991-06-11),
2. 4995898 - Imidazole compounds and biocidal composition comprising the same for (1991-02-26),
3. H000811 - Biocidal composition (1990-08-06),
4. 4504665 - Process for producing chloronicotinic acid compounds (1985-03-12),
5. 4420618 - Process for producing 5-chloro-.beta.-trifluoromethylpyridines (1983-12-13),
6. 4415739 - Process for producing 4-benzoylpyrazoles (1983-11-15),
7. 4399143 - Phenoxybutyltriazole compound, agricultural and horticultural fungicidal (1983-08-16),
8. 4383116 - Process for producing 4-benzoylpyrazoles (1983-05-10),
9. 4349681 - 2-Amino-3-chloro-5-trifluoromethylpyridine (1982-09-14),

Title: The Innovations of Toshio Nakajima

Introduction

Toshio Nakajima is a prominent inventor based in Kusatsu, Japan. He has made significant contributions to the field of chemistry, particularly in the development of imidazole compounds. With a total of 9 patents to his name, Nakajima's work has had a notable impact on various applications in biocidal compositions.

Latest Patents

Among his latest patents, Nakajima has developed an imidazole compound and a process for preparing the same. This compound is represented by a specific formula, where X can denote various groups such as a --COOT group or a --CONH₂ group. Additionally, he has disclosed novel imidazole compounds that are characterized by a general formula involving cyano groups and other substituents.

Career Highlights

Toshio Nakajima is associated with Ishihara Sangyo Kaisha, Ltd., where he continues to innovate and contribute to the field. His expertise in imidazole chemistry has positioned him as a key figure in his company and the industry at large.

Collaborations

Throughout his career, Nakajima has collaborated with notable coworkers, including Takahiro Haga and Rikuo Nasu. These partnerships have fostered a collaborative environment that enhances the innovation process.

Conclusion

Toshio Nakajima's work in the field of imidazole compounds exemplifies the spirit of innovation and dedication to scientific advancement. His contributions continue to influence the industry and inspire future research.

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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