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For the Inventor, By the Inventor

Yamaguchi, Japan

Hiroshi Iwasaki

This inventor holds 9 USPTO granted patents. Top assignees: Mitsui Chemicals, Inc., Mitsui Petrochemical Industries, Ltd.. Active years: 1981-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Iwasaki. Retrieved from https://idiyas.com/inventor/hiroshi-iwasaki-f5exxpkg

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Yamoguchi, JP (1981)
  • Waki-cho, JP (1998)
  • Yamaguchi, JP (1995 - 2000)
  • Kuga-gun, JP (1999 - 2000)

Company Filing History:

goldMedal5 out of 1,817 
 
Mitsui Chemicals, Inc.
 patents
silverMedal4 out of 1,008 
 
Mitsui Petrochemical Industries, Ltd.
 patents

Years Active: 1981-2000

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9 patents (USPTO):Explore Patents
1. 6162948 - Naphthalenedicarboxylic acid particles and process for the production (2000-12-19),
2. 6100374 - Method of purifying crude naphthalenedicarboxlic acid and process for (2000-08-08),
3. 6028193 - Method for producing aryl aklyl hydroperoxides (2000-02-22),
4. 5945572 - Method for producing aryl alkyl hydroperoxides (1999-08-31),
5. 5872284 - Method for purifying crude naphthalenedicarboxylic acid (1999-02-16),
6. 5847227 - Method for producing aryl alkyl hydroperoxides (1998-12-08),
7. 5811513 - Process for producing polyethylene naphthalate (1998-09-22),
8. 5475157 - Process for producing aromatic hydroxylic compound (1995-12-12),
9. 4266081 - Process for preparation of peroxides (1981-05-05),

Title: Hiroshi Iwasaki: Innovator in Naphthalenedicarboxylic Acid Production

Introduction

Hiroshi Iwasaki is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production and purification of naphthalenedicarboxylic acid. With a total of 9 patents to his name, Iwasaki's work has had a considerable impact on the industry.

Latest Patents

Iwasaki's latest patents include innovative processes for the production of naphthalenedicarboxylic acid particles. He has also developed a method for purifying crude naphthalenedicarboxylic acid, showcasing his expertise in this specialized area of chemistry.

Career Highlights

Throughout his career, Hiroshi Iwasaki has worked with prominent companies such as Mitsui Chemicals, Inc. and Mitsui Petrochemical Industries, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various projects that advance chemical production techniques.

Collaborations

Iwasaki has collaborated with esteemed colleagues, including Masayasu Ishibashi and Nobuya Hirokane. These partnerships have fostered a creative environment that has led to innovative solutions in their field.

Conclusion

Hiroshi Iwasaki's contributions to the field of naphthalenedicarboxylic acid production and purification are noteworthy. His patents and collaborations reflect his dedication to advancing chemical engineering. His work continues to influence the industry and inspire future innovations.

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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