logo

For the Inventor, By the Inventor

Yokohama, Japan

Tadashi Fujii

This inventor holds 12 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1980-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Fujii. Retrieved from https://idiyas.com/inventor/tadashi-fujii-27evvvgi

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 9

Forward Citations = 371(Granted Patents)


Location History:

  • Tokyo, JP (1981)
  • Yokohama, JP (1980 - 1988)

Company Filing History:

goldMedal12 out of 28,951 
 
Ricoh Company, Ltd.
 patents

Years Active: 1980-1988

Loading Chart...
12 patents (USPTO):Explore Patents
1. 4740420 - Recording medium for ink-jet printing (1988-04-26),
2. 4620876 - Aqueous ink for ink-jet printing (1986-11-04),
3. 4554555 - Recording method by use of inks (1985-11-19),
4. 4508570 - Aqueous ink for ink-jet printing (1985-04-02),
5. 4504844 - Ink jet printing apparatus (1985-03-12),
6. 4455168 - Aqueous ink for ink-jet printing (1984-06-19),
7. 4445124 - Ink jet recording process (1984-04-24),
8. 4254201 - Pressure sensitive adhesive toner of clustered encapsulated porous (1981-03-03),
9. 4251827 - Wet type direct recording method (1981-02-17),
10. 4218691 - Recording apparatus with improved counter electrode (1980-08-19),
11. 4206467 - Recording method (1980-06-03),
12. 4205320 - Wet type direct image recording method (1980-05-27),

Title: The Innovations of Tadashi Fujii

Introduction

Tadashi Fujii is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of ink-jet printing technology. With a total of 12 patents to his name, Fujii has established himself as a key figure in this innovative industry.

Latest Patents

Fujii's latest patents include a recording medium for ink-jet printing. This recording medium comprises a support material that contains at least a water-soluble metal salt with an ion valence of 2 to 4, along with a cationic organic material. Another notable patent is an aqueous ink for ink-jet printing, which consists of a water-soluble dye, a water-soluble organic solvent, a water-soluble preservative and anti-mold agent, and water.

Career Highlights

Fujii is currently employed at Ricoh Company, Ltd., where he continues to develop innovative solutions in the printing sector. His work has greatly influenced the efficiency and quality of ink-jet printing technologies.

Collaborations

Throughout his career, Fujii has collaborated with notable colleagues such as Kakuji Murakami and Eiichi Akutsu. These partnerships have further enhanced his contributions to the field.

Conclusion

Tadashi Fujii's work in ink-jet printing technology showcases his innovative spirit and dedication to advancing the industry. His patents reflect a commitment to improving printing solutions, making him a valuable inventor 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]
Loading…