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For the Inventor, By the Inventor

Ichihara, Japan

Tadashi Kawakami

This inventor holds 7 USPTO granted patents and 5 EPO patents. Top assignee: Nippon Soda Co., Ltd.. Active years: 2006-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Kawakami. Retrieved from https://idiyas.com/inventor/tadashi-kawakami

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

USPTO Granted Patents = 7

% Patents Active = 14.3


Average Co-Inventor Count = 3.3

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Chiba, JP (2013)
  • Ichihara, JP (2006 - 2014)

Company Filing History:

goldMedal7 out of 517 
 
Nippon Soda Co., Ltd.
 patents

Years Active: 2006-2014

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7 patents (USPTO):Explore Patents
1. 8697601 - Rewritable recording material (2014-04-15),
2. 8546299 - Color-developing composition and recording material containing the same (2013-10-01),
3. 8529688 - Phenolic compound and recording material (2013-09-10),
4. 8420568 - Color-developing compositions and recording material containing same (2013-04-16),
5. 7390771 - Recording material and recording sheet (2008-06-24),
6. 7169737 - Phenolic compound and recording material using the same (2007-01-30),
7. 7012159 - Phenolic compounds and recording materials containing the same (2006-03-14),

Title: The Innovations of Tadashi Kawakami

Introduction

Tadashi Kawakami is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of recording materials, holding a total of 7 patents. His work focuses on developing advanced materials that enhance the performance and durability of recording technologies.

Latest Patents

Kawakami's latest patents include a rewritable recording material that incorporates phenolic compounds. This innovative material is designed to stably repeat coloring and discoloring over extended periods while exhibiting superior storage properties, including heat resistance and moisture resistance. Additionally, he has developed a color-developing composition that allows for the production of recording materials with enhanced heat resistance, significantly reducing the content of dihydroxydiphenylsulfone derivatives.

Career Highlights

Kawakami is currently associated with Nippon Soda Co., Ltd., where he continues to push the boundaries of material science. His research and inventions have positioned him as a key figure in the development of rewritable recording technologies.

Collaborations

Throughout his career, Kawakami has collaborated with esteemed colleagues such as Satoshi Kodama and Hiroshi Fujii. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Tadashi Kawakami's contributions to the field of recording materials exemplify the spirit of innovation. His patents reflect a commitment to enhancing technology through research and collaboration.

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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