Takao Fujiwara

This inventor holds 21 USPTO granted patents, primarily in Electrophotographic Technology. Top assignee: Minolta Camera Kabushiki Kaisha. Active years: 1976-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Fujiwara. Retrieved from https://idiyas.com/inventor/takao-fujiwara

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

USPTO Granted Patents = 21

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 10

Forward Citations = 370(Granted Patents)

Location History:

Sakai, J (1976)
Sakai, JA (1976 - 1977)
Sakai, JP (1978 - 1979)
Toyakawa, JP (1981)
Toyokawa, JP (1981 - 1990)
Osaka, JP (1989 - 1992)

Company Filing History:

21 out of 2,979

Minolta Camera Kabushiki Kaisha

patents

Years Active: 1976-1992

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Areas of Expertise:

Image Forming

Electrophotographic

Illumination Device

Toner Management

Copying Apparatus

Fusing Apparatus

Color Editing

Variable Magnification

Charge Control

Toner Scattering

Residual Toner

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5103764 - Developing device drive mechanism for selecting and powering developing (1992-04-14),

2. 5073793 - Multi-color image forming method and an apparatus therefor (1991-12-17),

3. 5038171 - Multicolored image forming method and apparatus therefor (1991-08-06),

4. 4935781 - Image forming apparatus having color editing function (1990-06-19),

5. 4827314 - Optical illumination device for use in a copying apparatus (1989-05-02),

6. 4483606 - Toner scattering prevention device (1984-11-20),

7. 4277165 - Photocopying machine equipped with variable magnification arrangement (1981-07-07),

8. 4264186 - Electrophotographic copying apparatus (1981-04-28),

9. 4244647 - Erasing device for image transfer type copying apparatus (1981-01-13),

10. 4174904 - Electrophotographic copying apparatus for copying thick and thin (1979-11-20),

11. 4116556 - Electrophotographic copying apparatus (1978-09-26),

12. 4038026 - Electrophotographic fusing apparatus (1977-07-26),

13. 4009958 - Belt support structure in copying machine (1977-03-01),

14. 4008954 - Device for extinguishing unnecessary electrostatic charge in (1977-02-22),

15. 4003335 - Developing material applicator (1977-01-18),

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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]