Keiji Numata

This inventor holds 7 USPTO granted patents and 10 published patent applications and 2 EPO patents. Top assignees: Riken Corporation, Spiber Inc.. Active years: 2016-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Numata. Retrieved from https://idiyas.com/inventor/keiji-numata

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

USPTO Granted Patents = 7 (Patent Applications = 10)

% Patents Active = 71.4

EPO Patents = 2 (Patent Applications = 8)

Average Co-Inventor Count = 4.4

ph-index = 1

Location History:

Saitama, JP (2016 - 2022)
Wako, JP (2020 - 2023)

Company Filing History:

where one patent can have more than one assignee

Years Active: 2016-2023

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11692015 - Modified fibroin (2023-07-04),

2. 11505577 - Polypeptide comprising cell-penetrating sequence and composition comprising same (2022-11-22),

3. 11279941 - Method for introducing protein into plant cell (2022-03-22),

4. 11174572 - Composite molding composition including fibroin-like protein, and method for producing composite molding composition (2021-11-16),

5. 10723806 - Method of introducing nucleic acid into plant cells (2020-07-28),

6. 10526612 - Plant transformation method (2020-01-07),

7. 9447441 - Method for producing polyhydroxyalkanoate having long main chain structure (2016-09-20),

Title: Keiji Numata: Innovator in Fibroin and Polypeptide Technologies

Introduction

Keiji Numata is a prominent inventor based in Saitama, Japan. He has made significant contributions to the fields of biotechnology and materials science, holding a total of seven patents. His work focuses on innovative modifications of fibroin and the development of cell-penetrating polypeptides.

Latest Patents

One of his latest patents is related to modified fibroin. This invention includes a domain sequence characterized by a reduced content of glutamine residues, which enhances the properties of naturally occurring fibroin. Another notable patent involves a polypeptide that possesses the ability to penetrate cells. This polypeptide is defined by a specific structural formula and is designed to be part of a cell-invasive composition that includes a substance of interest.

Career Highlights

Throughout his career, Keiji Numata has worked with leading companies in the biotechnology sector. Notably, he has been associated with Riken Corporation and Spiber Inc., where he has contributed to various innovative projects and research initiatives.

Collaborations

Keiji Numata has collaborated with esteemed colleagues, including Takeshi Yoshizumi and Yutaka Kodama. These collaborations have furthered his research and development efforts in the field of biotechnology.

Conclusion

Keiji Numata's innovative work in fibroin and polypeptide technologies showcases his significant impact on the field of biotechnology. His patents reflect a commitment to advancing scientific knowledge and practical applications in this area.

Profile summary based on public USPTO records.