Shiga, Japan

Seiji Tonogai

This inventor holds 1 USPTO granted patent. Top assignee: Dainippon Screen Manufacturing Co., Ltd.. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Tonogai. Retrieved from https://idiyas.com/inventor/seiji-tonogai

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 1993

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1 patent (USPTO):Explore Patents

Title: Seiji Tonogai: Innovator in Metal Processing Technology

Introduction

Seiji Tonogai is a notable inventor based in Shiga, Japan. He has made significant contributions to the field of metal processing technology. His innovative methods have paved the way for advancements in manufacturing techniques.

Latest Patents

Tonogai holds a patent for a "Method of forming small through-holes in thin metal plate." This patent describes a process that includes forming resist films with openings according to a predetermined pattern. The method involves etching one or both sides of a thin metal plate and stopping the etching before through-holes are formed. It also includes removing the overhang of the resist film by spraying high-pressure fluid onto the etched side of the thin metal plate. The process continues with covering the surface with an etch-resisting layer, forming through-holes by etching the side not covered, and finally stripping the etch-resisting layer and the resist film.

Career Highlights

Seiji Tonogai is associated with Dainippon Screen Manufacturing Co., Ltd., where he has contributed to various projects and innovations. His work has been instrumental in enhancing the efficiency and precision of metal processing techniques.

Collaborations

Tonogai has collaborated with notable colleagues, including Akihiro Inagaki and Masanobu Sato. Their combined expertise has led to advancements in their respective fields.

Conclusion

Seiji Tonogai's contributions to metal processing technology through his innovative patent demonstrate his commitment to advancing manufacturing techniques. His work continues to influence the industry and inspire future innovations.

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]
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