Chikao Yoshikumi

This inventor holds 68 USPTO granted patents, primarily in Pharmaceutical Compositions (CPC class 536 ). Top assignee: Kureha Kagaku Kogyo Kabushiki Kaisha. Active years: 1977-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikao Yoshikumi. Retrieved from https://idiyas.com/inventor/chikao-yoshikumi

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

USPTO Granted Patents = 68

% Patents Active = 100.0

Average Co-Inventor Count = 6.6

ph-index = 11

Forward Citations = 458(Granted Patents)

Forward Citations (Not Self Cited) = 330(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokyo, JA (1977)
Kunitachi, JP (1979 - 1991)
Tokyo, JP (1985 - 1992)

Company Filing History:

68 out of 776

Kureha Kagaku Kogyo Kabushiki Kaisha

patents

Years Active: 1977-1992

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Areas of Expertise:

Antiviral Drugs

Glycoproteins

Anti-Tumor Substances

Polysaccharides

Cephalosporin Derivatives

Nucleic Acid

Pharmaceutical Formulations

P-aminobenzoic Acid

Electrophoresis

Bone Mass

Immunoglobulin

Hyperglycemia

68 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5089481 - Polysaccharides and antiviral drugs containing the same as active (1992-02-18),

2. 5008243 - Pharmaceutical composition containing a glycoprotein (1991-04-16),

3. 5001118 - Method for preventing senescence and increasing bone mass (1991-03-19),

4. 4985543 - Lectins and antiretroviral drugs containing the lectins as active (1991-01-15),

5. 4957906 - Pharmaceutical compositions containing a derivative of para-aminobenzoic (1990-09-18),

6. 4925662 - Anti-tumor substance and process for producing the same (1990-05-15),

7. 4874750 - Pharmaceutical composition containing a derivative of para-aminobenzoic (1989-10-17),

8. 4866047 - Method for inhibiting the formation of urinary calculus utilizing (1989-09-12),

9. 4851395 - Nitrogen-containing polysaccharide (1989-07-25),

10. 4820689 - Pharmaceutical composition containing a glycoprotein (1989-04-11),

11. 4801581 - Pharmaceutical composition containing para-amino-benzoic (1989-01-31),

12. 4783419 - Examining cells by electrophoresis (1988-11-08),

13. 4758558 - N-(substituted)-[7-(2-cyanoacetamido)cephalosporanic]amide derivatives (1988-07-19),

14. 4757054 - Pharmaceutical composition containing para-amino-benzoic (1988-07-12),

15. 4748159 - Method for the treatment of tumors (1988-05-31),

Title: The Innovative Journey of Chikao Yoshikumi

Introduction: Chikao Yoshikumi, a pioneering inventor hailing from Kunitachi, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Yoshikumi's latest patents focus on advancements in renewable energy technologies, particularly in the field of solar power efficiency and storage solutions.

Career Highlights: With a career spanning over two decades, Yoshikumi has worked tirelessly to develop cutting-edge solutions in the renewable energy sector. His inventions have not only revolutionized the industry but have also paved the way for a more sustainable future.

Collaborations: Throughout his career, Yoshikumi has collaborated with leading research institutions and universities to further his research and bring his inventions to life. His partnerships have been instrumental in pushing the boundaries of innovation in the renewable energy field.

Conclusion: Chikao Yoshikumi's unwavering dedication to innovation and sustainability has solidified his position as a trailblazer in the world of renewable energy technology. His inventive spirit continues to inspire future generations of inventors to push the boundaries of what is possible.

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]