Osaka, Japan

Takao Yanagisawa

This inventor holds 4 USPTO granted patents. Top assignee: Hakkol Chemical Co., Ltd.. Active years: 1996-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Yanagisawa. Retrieved from https://idiyas.com/inventor/takao-yanagisawa

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 = 2.7

ph-index = 2

Forward Citations = 18(Granted Patents)


Location History:

  • Izumi, JP (1996)
  • Osaka, JP (1997 - 2002)

Company Filing History:


Years Active: 1996-2002

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4 patents (USPTO):Explore Patents

Title: Takao Yanagisawa: Innovator in Organic Chemistry

Introduction

Takao Yanagisawa is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of organic chemistry, particularly in the development of innovative compounds with practical applications. With a total of 4 patents to his name, Yanagisawa continues to push the boundaries of chemical research.

Latest Patents

Yanagisawa's latest patents include an organic fluorescent whitening pigment composition that boasts excellent hiding power. Additionally, he has developed a near-infrared ray absorbing polyazo compound. This compound is capable of effectively absorbing near-infrared rays and can be produced from readily available raw materials. It comprises at least one --OH group or a group derived from --OH at the p-position of the azo group in the molecule. The production process involves diazotizing a substituted or nonsubstituted aromatic monocyclic or polycyclic compound or heterocyclic compound, each having a diazotizable primary amino group. The resulting diazo component is then coupled with an azo component that also has a diazotizable primary amino group, ensuring that the --OH group or its derivative is present at the p-position of the azo group.

Career Highlights

Yanagisawa is currently associated with Hakkol Chemical Co., Ltd., where he applies his expertise in organic chemistry to develop innovative solutions. His work has garnered attention in the industry, showcasing his ability to create compounds that meet specific needs in various applications.

Collaborations

Throughout his career, Yanagisawa has collaborated with notable colleagues, including Shigekazu Matsumoto and Shigehiro Matsumoto. These collaborations have further enriched his research and development efforts, leading to advancements in the field.

Conclusion

Takao Yanagisawa is a distinguished inventor whose work in organic chemistry has led to the development of valuable compounds. His innovative spirit and dedication to research continue to inspire advancements in the industry.

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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