Riichiro Nagano

This inventor holds 14 USPTO granted patents, primarily in Polymer Compositions. Top assignees: Mitsui Petrochemical Industries, Ltd., Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1979-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Riichiro Nagano. Retrieved from https://idiyas.com/inventor/riichiro-nagano

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

Calculating rank

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 10

Forward Citations = 259(Granted Patents)

Location History:

Waki, JP (1979 - 1983)
Yamaguchi, JP (1981 - 1986)
Hiroshima, JP (1984 - 1988)
Hatsukaichi, JP (1988)

Company Filing History:

14 out of 1,008

Mitsui Petrochemical Industries, Ltd.

patents

1 out of 2,916

Tokyo Shibaura Denki Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1979-1988

Loading Chart...

Areas of Expertise:

Primer Composition

Chlorinated Polyolefins

Hot-Melt Adhesive

Modified Polyolefin

Image-Forming Method

Laminated Structure

Polymer Composition

Graft-Modified Copolymer

Lubricating Oil

Surface Treating Agent

Thermoplastic Olefin

Pressure Sensitive Adhesive

14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4755553 - Primer composition for substrates (1988-07-05),

2. 4725506 - Chlorinated polyolefins (1988-02-16),

3. 4659785 - Hot-melt adhesive composition (1987-04-21),

4. 4632959 - Modified polyolefin composition (1986-12-30),

5. 4623610 - Positive image-forming method using 4-methyl-1-pentene polymer (1986-11-18),

6. 4612252 - Laminated structure having post-chlorinated adhesive olefin resin layer (1986-09-16),

7. 4584348 - Polymer composition of olefin/carboxylic acid copolymer and elastomer (1986-04-22),

8. 4501827 - Glass-reinforced polymer composition comprising 4-methyl-1-pentene (1985-02-26),

9. 4490508 - Graft-modified copolymer and compounding agent for styrene-type polymer (1984-12-25),

10. 4397916 - Laminated multilayer structure (1983-08-09),

11. 4388202 - Lubricating oil composition and process for preparation thereof (1983-06-14),

12. 4299754 - Surface treating agent and method for its production (1981-11-10),

13. 4284541 - Hot-melt pressure sensitive adhesive compound (1981-08-18),

14. 4134927 - Production of thermoplastic olefin elastomers (1979-01-16),

Title: The Innovations of Riichiro Nagano

Introduction

Riichiro Nagano is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to the field of materials science, particularly in the development of primer compositions and chlorinated polyolefins. With a total of 14 patents to his name, Nagano's work has had a lasting impact on various industries.

Latest Patents

One of his latest patents is a primer composition for substrates. This innovative primer composition consists of 1 to 100 parts by weight of a chlorinated carboxyl group-containing α-olefin polymer and 100 parts by weight of an organic solvent. This advancement in primer technology enhances the performance and application of coatings in various substrates.

Career Highlights

Throughout his career, Nagano has worked with notable companies such as Mitsui Petrochemical Industries, Ltd. and Tokyo Shibaura Denki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise and contribute to groundbreaking innovations in the field.

Collaborations

Nagano has collaborated with several talented individuals, including Toshihiro Sagane and Hiroshi Kiga. These partnerships have fostered a creative environment that has led to the development of new technologies and solutions.

Conclusion

Riichiro Nagano's contributions to the field of materials science and his impressive portfolio of patents highlight his role as a leading inventor. His work continues to influence various industries, showcasing the importance of innovation in advancing technology.

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]