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For the Inventor, By the Inventor

Kusatsu, Japan

Hisajiro Yukinaga

This inventor holds 9 USPTO granted patents. Top assignee: Shionogi Company Limited. Active years: 1976-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisajiro Yukinaga. Retrieved from https://idiyas.com/inventor/hisajiro-yukinaga

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 6

Forward Citations = 142(Granted Patents)


Location History:

  • Kusatsu, JA (1976 - 1977)
  • Kusatsu, JP (1978 - 1982)

Company Filing History:

goldMedal9 out of 1,001 
 
Shionogi Company Limited
 patents

Years Active: 1976-1982

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9 patents (USPTO):Explore Patents
1. 4314845 - N.sup.4 -Phenoxyalkanoylsulfanilamides and herbicidal composition (1982-02-09),
2. 4293328 - N-(5-t-Butyl-3-isoxazolyl)alkanamide derivatives and herbicidal (1981-10-06),
3. 4212981 - Process for preparing 3-isoxazolylurea derivatives (1980-07-15),
4. 4116671 - 3-Isoxazolylcarbamate derivatives (1978-09-26),
5. 4111680 - Herbicidal compositions containing 3-isoxazolylurea derivatives (1978-09-05),
6. 4062861 - 3-Isoxazolylurea derivatives (1977-12-13),
7. 4061490 - Post-harvest plant preserving compositions (1977-12-06),
8. 4028376 - 3-Alkylisoxazole derivatives and herbicides containing them (1977-06-07),
9. 3933828 - Quinone derivatives and compositions containing the same (1976-01-20),

Title: The Innovations of Hisajiro Yukinaga

Introduction

Hisajiro Yukinaga, an accomplished inventor hailing from Kusatsu, Japan, has made significant contributions to the field of herbicidal compounds. With a remarkable portfolio of 9 patents, Yukinaga continues to drive innovation through his research and development efforts.

Latest Patents

Among Hisajiro Yukinaga's latest patents are the N⁴-Phenoxyalkanoylsulfanilamides, along with a herbicidal composition that includes these compounds. This innovation features a formula where R¹, R², R³, and R⁴ can independently represent hydrogen, halogen, nitro, or lower alkyl, while R⁵ can denote hydrogen or lower alkyl. R⁶ may represent hydrogen, lower alkoxycarbonyl, lower alkanoyl, or carbamoyl, showcasing his deep involvement in chemical innovations that address agricultural needs. Another notable patent includes the N-(5-t-Butyl-3-isoxazolyl)alkanamide derivatives, which introduces herbicidal compounds defined by certain specifications that allow diverse applications in weed management.

Career Highlights

His exceptional career is anchored at Shionogi & Company Limited, where he has played a vital role in pharmaceutical research. His work focuses on developing innovative solutions that enhance agricultural productivity, thus reflecting the importance of his inventions within the industry.

Collaborations

Yukinaga’s collaborative efforts with colleagues such as Jitsuo Sugita and Shinzaburo Sumimoto have led to the advancement of many herbicidal compositions. Together, they have explored various chemical formulations and their potential agricultural applications, paving the way for future innovations in pest control.

Conclusion

Hisajiro Yukinaga stands as a testament to the spirit of innovation. Through his work and collaborations, he has significantly impacted the field of herbicides, demonstrating the substantial role of inventors in addressing modern agricultural challenges. His patents not only reflect his technical expertise but also contribute to the ongoing evolution of effective agricultural solutions.

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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