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For the Inventor, By the Inventor

Kawasaki, Japan

Masafumi Hisamura

This inventor holds 8 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1986-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Hisamura. Retrieved from https://idiyas.com/inventor/masafumi-hisamura

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 90(Granted Patents)


Location History:

  • Kawasaki, JP (1986 - 1992)
  • Toride, JP (1990 - 1997)

Company Filing History:

goldMedal8 out of 92,901 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1986-1997

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8 patents (USPTO):Explore Patents
1. 5669047 - Charging member, electrophotographic apparatus and charging method using (1997-09-16),
2. 5112708 - Member for charging with surface layer of N-alkoxymethylated nylon (1992-05-12),
3. 4948690 - Electrophotographic photosensitive member with fine spherical resin (1990-08-14),
4. 4943819 - Image holding member and image forming device (1990-07-24),
5. 4932860 - Electrophotographic photosensitive member (1990-06-12),
6. 4877701 - Photosensitive member for electrophotography (1989-10-31),
7. 4766048 - Electrophotographic photosensitive member having surface layer (1988-08-23),
8. 4617245 - Light receiving member having tapered reflective surfaces between (1986-10-14),

Title: Masafumi Hisamura: Innovator in Electrophotography

Introduction

Masafumi Hisamura is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of electrophotography, holding a total of 8 patents. His work focuses on developing advanced charging members and methods that enhance the efficiency of electrophotographic devices.

Latest Patents

His latest patents include innovative technologies such as a charging member for electrophotography that features a surface layer comprising a resin and an alkali metal salt. This invention aims to improve the performance of electrophotographic apparatuses. Another notable patent is for a member for charging that utilizes a surface layer made of N-alkoxymethylated nylon. This technology allows for effective contact charging by applying an external voltage to the member for charging, which is crucial for the operation of electrophotographic devices.

Career Highlights

Masafumi Hisamura is currently employed at Canon Kabushiki Kaisha, a leading company in imaging and printing technologies. His work at Canon has positioned him as a key player in the development of innovative solutions in the electrophotography sector.

Collaborations

Throughout his career, Masafumi has collaborated with notable colleagues such as Hisami Tanaka and Shigemori Tanaka. These collaborations have contributed to the advancement of technologies in their field.

Conclusion

Masafumi Hisamura's contributions to electrophotography through his patents and work at Canon Kabushiki Kaisha highlight his role as an influential inventor. His innovative approaches continue to shape the future of imaging 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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