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For the Inventor, By the Inventor

Tsukuba, Japan

Yoshihisa Arai

This inventor holds 15 USPTO granted patents. Top assignee: Mitsubishi Gas Chemical Company, Inc.. Active years: 1993-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihisa Arai. Retrieved from https://idiyas.com/inventor/yoshihisa-arai

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

USPTO Granted Patents = 15

% Patents Active = 86.7

Average Co-Inventor Count = 3.5

ph-index = 6

Forward Citations = 97(Granted Patents)


Location History:

  • Tsukuba, JP (1993 - 2002)
  • Ibaraki, JP (2003)
  • Katsushika-ku, JP (2012)
  • Tokyo, JP (2013)

Company Filing History:

goldMedal15 out of 2,301 
 
Mitsubishi Gas Chemical Company, Inc.
 patents

Years Active: 1993-2013

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15 patents (USPTO):Explore Patents
1. 8598292 - Adamantane derivative, method for producing same, polymer using same as starting material, and resin composition (2013-12-03),
2. 8198475 - Method for producing adamantyl (meth)acrylates (2012-06-12),
3. 6521781 - Production of 2-hydrocarbyl-2-adamantyl acrylate compounds (2003-02-18),
4. 6359163 - Process for producing dialkyl carbonate (2002-03-19),
5. 6169197 - Process for separation between dialkyl carbonate and alkyl carbamate (2001-01-02),
6. 6031122 - Process for producing dialkyl carbonate (2000-02-29),
7. 5980445 - Process for producing diaryl carbonate (1999-11-09),
8. 5587106 - Liquid crystal display devices and liquid crystal substances therefor (1996-12-24),
9. 5534190 - Anti-ferroelectric liquid crystal composition and liquid crystal display (1996-07-09),
10. 5378396 - Liquid crystal compound and liquid crystal display device (1995-01-03),
11. 5374375 - Liquid crystal compound and liquid crystal display device (1994-12-20),
12. 5364560 - Liquid crystal compound and liquid crystal display device (1994-11-15),
13. 5352382 - Liquid crystal composition (1994-10-04),
14. 5340498 - Anti-ferroelectric liquid crystal and liquid crystal display device (1994-08-23),
15. 5264150 - Optically active alcohol, process for producing same and liquid crystal (1993-11-23),

Title: **Yoshihisa Arai: Innovator in Adamantane Derivatives and Polymer Resins**

Introduction

Yoshihisa Arai, an esteemed inventor based in Tsukuba, Japan, has made significant contributions to the field of polymer science with a focus on adamantane derivatives. With a remarkable portfolio of 15 patents, Arai’s work is instrumental in enhancing the properties of various materials used in advanced technologies.

Latest Patents

Among his most recent patents, Arai has developed an adamantane derivative and a method for producing it. This invention includes a polymer that utilizes an acrylate compound containing the adamantane structure in its repeat unit. Notably, this functional resin composition demonstrates excellent alkali developability and substrate adhesiveness. It further enhances resolution and line edge roughness for chemically amplified resists sensitive to far-ultraviolet rays, ensuring that traditional resist properties, such as pattern forming characteristics and dry etching resistance, are maintained. His innovative methods are set to redefine industrial production practices for adamantyl (meth)acrylates, emphasizing efficiency and eliminating the need for column purification.

Career Highlights

Yoshihisa Arai is affiliated with Mitsubishi Gas Chemical Company, Inc., where he has been pivotal in driving research and development initiatives. His expertise in producing adamantane-based polymers has opened new avenues in applications like crosslinked resins, optical fibers, and optical waveguides, making a profound impact on the industry.

Collaborations

Arai has collaborated with notable coworkers such as Tomoyuki Yui and Masamichi Mizukami. Their collective efforts have contributed to advancing the understanding and practical applications of polymer-based materials in various technological fields.

Conclusion

Yoshihisa Arai stands out as a prolific inventor whose work on adamantane derivatives significantly influences the landscape of polymer science. His innovative patents and collaborative spirit at Mitsubishi Gas Chemical Company, Inc. assure that he will continue to be a driving force in the development of advanced materials and technologies.

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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