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For the Inventor, By the Inventor

Yokohama, Japan

Kazunori Ohba

This inventor holds 7 USPTO granted patents. Top assignee: Meiji Seika Kaisha, Ltd.. Active years: 1976-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunori Ohba. Retrieved from https://idiyas.com/inventor/kazunori-ohba

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 = 7.9

ph-index = 3

Forward Citations = 57(Granted Patents)


Location History:

  • Yokohama, JA (1976)
  • Yokohama, JP (1979 - 1980)
  • Kanagawa, JP (1991)

Company Filing History:

goldMedal7 out of 382 
 
Meiji Seika Kaisha, Ltd.
 patents

Years Active: 1976-1991

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7 patents (USPTO):Explore Patents
1. 5037993 - Sulfonyl derivatives of an antibiotic substance isolated from (1991-08-06),
2. 4994578 - Certain anti-tumor duocarmycin antibiotics from streptomyces (1991-02-19),
3. 4242327 - Antibiotic SF-2052 substance and production and use thereof (1980-12-30),
4. 4220639 - Antibiotics SF-2050 and SF-2050B substances and production and use (1980-09-02),
5. 4202886 - Antibiotic SF-1942 substance and process for production of the same (1980-05-13),
6. 4169140 - Antibiotics SF-1771 substance and SF-1771-B substance as well as the (1979-09-25),
7. 3974035 - Process for preparing a cephamycin type antibiotic substance (1976-08-10),

Title: Kazunori Ohba: Innovator in Antimicrobial and Antitumor Research

Introduction

Kazunori Ohba is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of antimicrobial and antitumor research, holding a total of seven patents. His work focuses on novel substances that exhibit remarkable biological activities.

Latest Patents

Kazunori Ohba's latest patents include innovative sulfonyl derivatives of antibiotic substances isolated from microorganisms. These substances demonstrate both antimicrobial and antitumor activities. His patents detail processes for producing these compounds by cultivating microorganisms belonging to the genus Streptomyces, which are capable of generating these valuable derivatives.

Career Highlights

Ohba is associated with Meiji Seika Kaisha, Ltd., where he has been instrumental in advancing research in his field. His dedication to innovation has led to the development of new therapeutic agents that could potentially improve treatment options for various diseases.

Collaborations

Throughout his career, Kazunori Ohba has collaborated with notable colleagues, including Takashi Shomura and Michio Kojima. These partnerships have fostered a collaborative environment that enhances the research and development of new antimicrobial and antitumor agents.

Conclusion

Kazunori Ohba's contributions to the field of antimicrobial and antitumor research are noteworthy. His innovative patents and collaborations reflect his commitment to advancing medical science and improving health outcomes.

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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