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For the Inventor, By the Inventor

Kanagawa, Japan

Takeshi Yanagihara

This inventor holds 13 USPTO granted patents. Top assignees: Mitsui Toatsu Chemicals, Incorporated, Unicharm Corporation. Active years: 1990-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Yanagihara. Retrieved from https://idiyas.com/inventor/takeshi-yanagihara

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 7

Forward Citations = 181(Granted Patents)


Location History:

  • Kanagawa, JP (1990 - 1995)
  • Chigasaki, JP (1990 - 1996)

Company Filing History:

goldMedal13 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents
silverMedal1 out of 1,655 
 
Unicharm Corporation
 patents
where one patent can have more than one assignee

Years Active: 1990-1996

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13 patents (USPTO):Explore Patents
1. 5500286 - Multi-shell emulsion particle (1996-03-19),
2. 5409776 - Multi-shell emulsion particle (1995-04-25),
3. 5401800 - Substantially flat surfaced vinyl polymer emulsion particles having a (1995-03-28),
4. 5273824 - Cored multi-shell emulsion particle (1993-12-28),
5. 5216044 - Synthetic core-shell particle resin emulsion, process for producing and (1993-06-01),
6. 5210066 - Heat-sensitive recording material (1993-05-11),
7. 5106813 - Thermosensitive recording material (1992-04-21),
8. 5094998 - Fine-particle aggregate emulsion (1992-03-10),
9. 5078931 - Gas-permeable, waterproof film and process for its production (1992-01-07),
10. 5041464 - Process for preparing polymer emulsion particles having pores (1991-08-20),
11. 4983450 - Gas-permeable, waterproof nonwoven fabric and process for its production (1991-01-08),
12. 4978695 - Fine-particle aggregate emulsion and process for producing same (1990-12-18),
13. 4948772 - Substantially flat surfaced vinyl polymer emulsion particles having a (1990-08-14),

Title: Takeshi Yanagihara: A Pioneer in Multi-Shell Emulsion Particles

Introduction

Takeshi Yanagihara, based in Kanagawa, Japan, is a distinguished inventor with a remarkable portfolio of 13 patents. His contributions to the field of emulsion technology are particularly noteworthy, showcasing innovation that blends chemistry with practical applications.

Latest Patents

One of Yanagihara's latest patents focuses on a multi-shell emulsion particle designed with a unique dry state structure. This structure features penetrating pores that connect the surface layer with the particle's interior. The particle diameter ranges from 0.1 to 5.0 micrometers, with a preference for sizes between 0.1 and 1.2 micrometers. The preparation method involves emulsion polymerization of a vinyl monomer containing a significant percentage of unsaturated carboxylic acid. The resulting emulsion particle is particularly useful in resin compositions for paints, paper coating, and heat-sensitive recording materials.

Career Highlights

Yanagihara has worked for notable companies, including Mitsui Toatsu Chemicals, Incorporated and Unicharm Corporation. His experience in these reputable organizations has indeed shaped his approach to innovation and provided him with the platform to develop his groundbreaking inventions.

Collaborations

Throughout his career, Yanagihara has had the opportunity to collaborate with esteemed colleagues such as Makoto Nakano and Futoshi Hoshino. These partnerships have fostered an environment of creativity and shared knowledge, significantly contributing to his achievements and advancements in emulsion technology.

Conclusion

Takeshi Yanagihara exemplifies the spirit of innovation through his extensive work in developing advanced multi-shell emulsion particles. His contributions have not only pushed the boundaries of chemical engineering but also created valuable applications for various industries. As an inventor, his work continues to inspire future advancements in material science.

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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