Ryuichi Fujii

This inventor holds 8 USPTO granted patents. Top assignees: Somar Corporation, Hitachi, Ltd.. Active years: 1991-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuichi Fujii. Retrieved from https://idiyas.com/inventor/ryuichi-fujii

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

Calculating rank

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 4

Forward Citations = 41(Granted Patents)

Location History:

Saitama, JP (1991)
Tokyo, JP (1993)
Urawa, JP (1991 - 1994)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1991-1994

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5276073 - Thermosetting resin composition comprising maleimide, anhydride, epoxy (1994-01-04),

2. 5250591 - Curable adhesive composition (1993-10-05),

3. 5095047 - Epoxy resin composition and multilayer printed wiring board having (1992-03-10),

4. 5061744 - Resist ink composition (1991-10-29),

5. 5043184 - Method of forming electrically conducting layer (1991-08-27),

6. 5001168 - Adhesive for surface mounting devices (1991-03-19),

7. 4997863 - Thermosetting resin composition useful for forming insulating layer of (1991-03-05),

8. 4985474 - Hardenable resin composition (1991-01-15),

Title: Ryuichi Fujii: Innovator in Thermosetting Resin Compositions

Introduction

Ryuichi Fujii is a notable inventor based in Urawa, Japan. He has made significant contributions to the field of thermosetting resin compositions, holding a total of 8 patents. His work has been instrumental in developing materials that enhance the performance and reliability of various applications.

Latest Patents

Among his latest patents, Ryuichi Fujii has developed a thermosetting resin composition comprising maleimide, anhydride, and epoxy. This innovative composition is particularly useful for slot insulation purposes. Additionally, he has created a curable adhesive composition that includes a polymerizable prepolymer, a reactive diluent, and a polymerization initiator. This adhesive composition is notable for its ability to cure through heat or light, making it extremely useful for surface mounting devices.

Career Highlights

Throughout his career, Ryuichi Fujii has worked with prominent companies such as Somar Corporation and Hitachi, Ltd. His experience in these organizations has allowed him to refine his expertise in materials science and adhesive technologies.

Collaborations

Ryuichi Fujii has collaborated with talented individuals in his field, including Osamu Ogitani and Toru Shirose. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Ryuichi Fujii's contributions to thermosetting resin compositions and adhesive technologies highlight his role as a significant inventor in the industry. His work continues to influence advancements in material science and engineering.

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]