Kisarazu, Japan

Kiwamu Tokuhisa

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignee: Nippon Steel Chemical Co., Ltd.. Active years: 1999-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiwamu Tokuhisa. Retrieved from https://idiyas.com/inventor/kiwamu-tokuhisa

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

Calculating rank

% Patents Active = 20.0


Average Co-Inventor Count = 2.9

ph-index = 2

Forward Citations = 16(Granted Patents)


Location History:

  • Kimitsu, JP (1999)
  • Chiba, JP (2005 - 2006)
  • Kisarazu, JP (2011 - 2012)

Company Filing History:


Years Active: 1999-2012

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5 patents (USPTO):Explore Patents

Title: Kiwamu Tokuhisa: Innovator in Adhesive Resin Technology

Introduction

Kiwamu Tokuhisa is a prominent inventor based in Kisarazu, Japan. He has made significant contributions to the field of adhesive resin technology, holding a total of 5 patents. His work focuses on developing innovative materials that enhance the performance and safety of various applications.

Latest Patents

One of Tokuhisa's latest patents is a flame-retardant adhesive resin composition. This composition is halogen- and phosphorus-free, making it suitable for heat contact bonding of adherends at or below 250°C. It exhibits excellent heat resistance, solder heat resistance after moisture absorption, and processability. Additionally, an adhesive film produced from this composition is ideal for use in multilayer printed circuit board substrates, hybrid circuit board substrates, and coverlay films.

Another notable patent is a photosensitive resin composition that demonstrates exceptional pliability and ultraviolet sensitivity for development. This composition is designed for use in circuit substrates and includes a siloxane-containing polyamic acid resin along with a photopolymerization initiator. The resulting circuit substrate is coated with this innovative photosensitive resin composition, enhancing its functionality and reliability.

Career Highlights

Kiwamu Tokuhisa is currently employed at Nippon Steel Chemical Co., Ltd., where he continues to push the boundaries of adhesive technology. His work has garnered attention for its practical applications in various industries, particularly in electronics and materials science.

Collaborations

Throughout his career, Tokuhisa has collaborated with notable colleagues, including Akira Tokumitsu and Kazuaki Kaneko. These partnerships have contributed to the advancement of adhesive technologies and the successful development of innovative products.

Conclusion

Kiwamu Tokuhisa is a distinguished inventor whose work in adhesive resin technology has led to significant advancements in the field. His innovative patents reflect a commitment to enhancing material performance and safety in various applications.

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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