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For the Inventor, By the Inventor

Yokohama, Japan

Tetsuhito Kuwashima

This inventor holds 14 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1991-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuhito Kuwashima. Retrieved from https://idiyas.com/inventor/tetsuhito-kuwashima

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

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 5.3

ph-index = 7

Forward Citations = 128(Granted Patents)


Location History:

  • Yokohama, JP (1991 - 1995)
  • Yokoyama, JP (1996)
  • Toride, JP (1998 - 1999)

Company Filing History:

goldMedal14 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1991-1999

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14 patents (USPTO):Explore Patents
1. 5952138 - Magnetic developer and recognition method of magnetic-ink character (1999-09-14),
2. 5802428 - Images forming apparatus and developer for developing electrostatic (1998-09-01),
3. 5534981 - Image forming apparatus and developer for developing electrostatic images (1996-07-09),
4. 5470686 - Image forming apparatus (1995-11-28),
5. 5422707 - Toner for developing electrostatic images, detachable apparatus, image (1995-06-06),
6. 5333059 - Electrostatic imaging apparatus and facsimile apparatus employing toner (1994-07-26),
7. 5307122 - Image forming apparatus apparatus unit facsimile apparatus and developer (1994-04-26),
8. 5217836 - Toner for developing electrostatic images (1993-06-08),
9. 5180649 - Toner having crosslinkages and method of fixing same (1993-01-19),
10. 5164780 - Image forming apparatus having developer carrying member with surface (1992-11-17),
11. 5153377 - Image forming apparatus (1992-10-06),
12. 5141833 - One component developer for developing electrostatic image and image (1992-08-25),
13. 5126224 - Electrostatic image developing toner and process for its production, and (1992-06-30),
14. 5041351 - One component developer for developing electrostatic image and image (1991-08-20),

Title: Tetsuhito Kuwashima: Innovator in Imaging Technology

Introduction:

Tetsuhito Kuwashima, a prolific inventor based in Yokohama, Japan, has made significant contributions to the field of imaging technology. With 14 patents to his name, Kuwashima has demonstrated a keen understanding of magnetic developer and image forming methods.

Latest Patents:

Kuwashima's recent patents include innovations such as the Magnetic Developer and Recognition Method of Magnetic-Ink Character. This invention features a magnetic toner comprising a binder resin, magnetic material, and hydrocarbon wax. Another notable patent is the Images Forming Apparatus and Developer for Developing Electrostatic, which involves a developer with magnetic toner and fine powder treated with silicone oil or varnish-treating agent.

Career Highlights:

Currently affiliated with Canon Kabushiki Kaisha, a renowned multinational corporation known as Canon, Kuwashima continues to push the boundaries of imaging technology. His expertise in magnetic developer and image forming processes has positioned him as a leader in the field.

Collaborations:

In his professional journey, Kuwashima has worked alongside esteemed colleagues such as Manabu Ohno and Hiroyuki Suematsu. Their collective efforts have led to groundbreaking inventions that have revolutionized the imaging industry.

Conclusion:

Tetsuhito Kuwashima's trailblazing work in magnetic developer and imaging technology underscores his invaluable contributions to the field. His innovative patents and collaborations reflect a commitment to advancing the boundaries of imaging technology, cementing his legacy as a visionary inventor.

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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