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For the Inventor, By the Inventor

Yokosuka, Japan

Hiroyuki Akahori

This inventor holds 10 USPTO granted patents. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1983-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Akahori. Retrieved from https://idiyas.com/inventor/hiroyuki-akahori

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 5

Forward Citations = 66(Granted Patents)


Location History:

  • Yokohama, JP (1983)
  • Yokosuka, JP (1983 - 1993)

Company Filing History:

goldMedal10 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents

Years Active: 1983-1993

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10 patents (USPTO):Explore Patents
1. 5235104 - Hydrazones and electrophotographic photoreceptors comprising them (1993-08-10),
2. 5132190 - Hydrozones and electrophotographic photoreceptors comprising them (1992-07-21),
3. 4997874 - Aqueous suspension and preparation method thereof (1991-03-05),
4. 4931420 - Temperature history indicator and its manufacturing method (1990-06-05),
5. 4735744 - Novel benzoquinone derivatives and production process thereof as well as (1988-04-05),
6. 4632987 - Process for the preparation of triarylmethane compounds (1986-12-30),
7. 4561000 - Heat-sensitive recording unit (1985-12-24),
8. 4480002 - Dyestuff-containing microscopic capsule suspension for record materials (1984-10-30),
9. 4398753 - Pressure sensitive recording unit (1983-08-16),
10. 4384871 - Dyestuff-containing microscopic capsule dispersion for record materials (1983-05-24),

Title: Hiroyuki Akahori: Innovator in Electrophotographic Materials

Introduction

Hiroyuki Akahori is a prominent inventor based in Yokosuka, Japan. He has made significant contributions to the field of electrophotographic materials, holding a total of 10 patents. His work focuses on innovative compounds that enhance the performance of photoreceptors.

Latest Patents

Among his latest patents is a hydrazone compound that serves as a charge-transporting material in electrophotographic photoreceptors. This compound is represented by a specific formula, where R1 and R2 are aryl groups or form a polycyclic group, while R3 can be a hydrogen or halogen atom, or an alkyl or phenyl group. Additionally, R4 and R5 are alkyl, aralkyl, or aryl groups, with at least one being an aryl group. The production of these compounds involves condensing the corresponding aldehyde with H2N–NR4R5 hydrazine.

Career Highlights

Hiroyuki Akahori is associated with Mitsui Toatsu Chemicals, Incorporated, where he continues to develop innovative materials for various applications. His expertise in hydrazone compounds has positioned him as a key figure in the advancement of electrophotographic technology.

Collaborations

He has collaborated with notable coworkers, including Makoto Asano and Kiyoharu Hasegawa, contributing to the collective knowledge and innovation within their field.

Conclusion

Hiroyuki Akahori's work in the development of hydrazone compounds has significantly impacted the field of electrophotographic materials. His contributions continue to drive innovation and enhance the performance of photoreceptors in various applications.

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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