Tomoyuki Igawa

This inventor holds 117 USPTO granted patents and 128 published patent applications, plus 11 CIPO patents and 65 EPO patents, primarily in Antibody Engineering (CPC class C07K16-2866). Top assignees: Chugai Seiyaku Kabushiki Kaisha, Osaka University. Active years: 2010-2026.

USPTO Granted Patents = 117 (Patent Applications = 128)

% Patents Active = 94.0

CIPO Patents = 11 (Patent Applications = 5)

EPO Patents = 65 (Patent Applications = 137)

Average Co-Inventor Count = 3.7

ph-index = 22

Forward Citations = 1,390(Granted Patents)

Forward Citations (Not Self Cited) = 703(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Gotemba, JP (2022)
Singapore, SG (2022 - 2023)
Shizuoka, JP (2010 - 2024)

Company Filing History:

117 out of 984

Chugai Seiyaku Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2010-2026

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Areas of Expertise:

Antibody Engineering

Bispecific Antibodies

Antigen-Binding Molecules

Pharmaceutical Formulations

Modified Fc Region

Cytotoxicity-Inducing Agent

Blood Coagulation Factor VIII

Ligand-Binding Molecules

Polypeptide Hetero-Oligomer

Immune Response Induction

Isoelectric Point Modification

Multispecific Antigen-Binding

117 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12703738 - ANTIBODY CONSTANT REGION VARIANT (2026-08-11),

2. RE50968 - METHODS OF MODIFYING ANTIBODIES FOR PURIFICATION OF BISPECIFIC ANTIBODIES (2026-07-28),

3. 12643937 - Fc REGION VARIANT (2026-06-02),

4. 12624089 - ANTIGEN-BINDING MOLECULE FOR PROMOTING DISAPPEARANCE OF ANTIGEN VIA Fc GAMMA RIIB (2026-05-12),

5. 12617847 - ANTIGEN-BINDING MOLECULE CAPABLE OF BINDING TO PLURALITY OF ANTIGEN MOLECULES REPEATEDLY (2026-05-05),

6. 12600789 - MODIFIED ANTIBODY CONSTANT REGION (2026-04-14),

7. 12595299 - FC variants (2026-04-07),

8. 12558423 - ANTIBODY-CONTAINING FORMULATION (2026-02-24),

9. 12545743 - BISPECIFIC ANTIBODY EXHIBITING INCREASED ALTERNATIVE FVIII-COFACTOR-FUNCTION ACTIVITY (2026-02-10),

10. 12522669 - CYTOTOXICITY-INDUCING THERAPEUTIC AGENT (2026-01-13),

11. 12522668 - MULTISPECIFIC ANTIGEN-BINDING MOLECULES HAVING BLOOD COAGULATION FACTOR VIII (FVIII) COFACTOR FUNCTION-SUBSTITUTING ACTIVITY AND PHARMACEUTICAL FORMULATIONS CONTAINING SUCH A MOLECULE AS AN ACTIVE INGREDIENT (2026-01-13),

12. 12522648 - ANTIGEN-BINDING MOLECULE CONTAINING MODIFIED FC REGION (2026-01-13),

13. 12479929 - ANTIBODIES WITH MUTATED HEAVY CHAIN CONSTANT REGIONS (2025-11-25),

14. 12479916 - ANTIGEN-BINDING MOLECULE CONTAINING MODIFIED ANTIBODY VARIABLE REGION (2025-11-25),

15. 12473375 - METHODS FOR CONTROLLING BLOOD PHARMACOKINETICS OF ANTIBODIES (2025-11-18),

Title: The Innovative Journey of Tomoyuki Igawa

Introduction: Tomoyuki Igawa is a renowned inventor hailing from Shizuoka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tomoyuki Igawa holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Tomoyuki Igawa has worked with leading tech companies in Japan, spearheading research and development projects that have resulted in cutting-edge inventions and solutions that have revolutionized the industry.

Collaborations: Throughout his career, Tomoyuki Igawa has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing that has led to the successful implementation of various projects.

Conclusion: Tomoyuki Igawa's passion for innovation, coupled with his relentless drive to create a positive impact through his inventions, solidifies his position as a trailblazer in the world of technology and a source of inspiration for aspiring inventors worldwide.