Toshitaro Kohri

This inventor holds 15 USPTO granted patents, primarily in Electrophotographic Toner. Top assignees: Minolta Camera Kabushiki Kaisha, Minolta Company, Ltd.. Active years: 1984-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshitaro Kohri. Retrieved from https://idiyas.com/inventor/toshitaro-kohri

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

Calculating rank

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 8

Forward Citations = 174(Granted Patents)

Location History:

Osaka, JP (1989 - 1992)
Higashi Osaka, JP (1984 - 2001)

Company Filing History:

13 out of 2,979

Minolta Camera Kabushiki Kaisha

patents

2 out of 2,816

Minolta Company, Ltd.

patents

Years Active: 1984-2001

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Areas of Expertise:

Electrophotographic Toner

Magnetic Carrier

Developer Composition

Capsule Toner

Wax-Particles

Color Toner

Electrostatic Latent Image

Binder Type Carrier

Dry Developer

Toner Manufacturing

Silica

Titanium Oxide

15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6300031 - Method for manufacturing an electrophotographic toner (2001-10-09),

2. 6183925 - Two component developer comprising specific magnetic toner and specific magnetic carrier (2001-02-06),

3. 5663027 - Two-component developer comprising specific magnetic toner and specific (1997-09-02),

4. 5424162 - Toner for electrophotography containing wax-particles dispersed in (1995-06-13),

5. 5149611 - Color toner for developing electrostatic latent image (1992-09-22),

6. 4990427 - Toner for developing electrostatic latent images (1991-02-05),

7. 4973541 - Electrostatic latent image developer comprising capsule toner of (1990-11-27),

8. 4968577 - Wrinkle configured electrophotographic capsule toner particles (1990-11-06),

9. 4943506 - White toner comprising titanium oxide of specified size (1990-07-24),

10. 4868082 - Binder type carrier (1989-09-19),

11. 4847176 - Binder-type carrier (1989-07-11),

12. 4822709 - Binder-type carrier suitable for a developing method of electrostatic (1989-04-18),

13. 4822708 - Carrier for use in developing device of electrostatic latent image and (1989-04-18),

14. 4623605 - Dry developer for developing electrostatic latent images contains silica (1986-11-18),

15. 4426433 - Electrophotographic developer composition of improved resistance to (1984-01-17),

Title: Toshitaro Kohri: Innovator in Electrophotographic Toner Technology

Introduction

Toshitaro Kohri is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of electrophotographic toner technology, holding a total of 15 patents. His work has been instrumental in advancing the efficiency and quality of toner manufacturing processes.

Latest Patents

One of his latest patents is a method for manufacturing an electrophotographic toner. This method focuses on producing toner particles with a mean diameter of more than 5 µm and less than 10 µm. The process begins with coarsely pulverized particles, which are first reduced to medium pulverized particles with a diameter between 10 µm and 19 µm. These medium particles are then further pulverized to achieve the desired small diameter. Additionally, he has developed a two-component developer that includes specific magnetic toner and magnetic carrier particles, designed for high-speed copying systems.

Career Highlights

Throughout his career, Toshitaro Kohri has worked with prominent companies such as Minolta Camera Co., Ltd. and Minolta Company, Ltd. His experience in these organizations has allowed him to refine his expertise in toner technology and contribute to various innovative projects.

Collaborations

Toshitaro Kohri has collaborated with notable coworkers, including Junji Machida and Hitoshi Kato. Their combined efforts have led to advancements in the field of electrophotographic technologies.

Conclusion

Toshitaro Kohri's contributions to the development of electrophotographic toner technology have made a lasting impact on the industry. His innovative methods and collaborative spirit continue to inspire advancements in this field.

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]