Yushin Kataoka

This inventor holds 9 USPTO granted patents. Top assignees: Sumitomo Chemical Company, Limited, Nittetsu Chemical Industrial Co., Ltd.. Active years: 1977-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yushin Kataoka. Retrieved from https://idiyas.com/inventor/yushin-kataoka

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 58(Granted Patents)

Location History:

Ehime, JA (1977)
Niihama, JP (1979 - 1988)

Company Filing History:

9 out of 6,961

Sumitomo Chemical Company, Limited

patents

1 out of 5

Nittetsu Chemical Industrial Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1977-1988

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4786481 - Method for eluting a metal adsorbed on a chelating agent (1988-11-22),

2. 4605706 - Process for producing a chelate resin (1986-08-12),

3. 4565673 - Process for eluting indium from a chelate resin containing adsorbed (1986-01-21),

4. 4564659 - Chelate resin and process for producing the same (1986-01-14),

5. 4468374 - Method for recovery of gallium (1984-08-28),

6. 4442231 - Aminophosphonic acid chelate resin (1984-04-10),

7. 4277566 - Chelate resin prepared by aftertreatment of aminated resin with (1981-07-07),

8. 4167525 - Process for preparation of aromatic acyl chloride (1979-09-11),

9. 4055585 - Preparation of liquid TDI for compositions (1977-10-25),

Title: Yushin Kataoka: Innovator in Chelating Agents

Introduction

Yushin Kataoka is a prominent inventor based in Niihama, Japan. He has made significant contributions to the field of chelating agents, holding a total of 9 patents. His innovative methods and processes have advanced the understanding and application of metal adsorption.

Latest Patents

Kataoka's latest patents include a method for eluting a metal adsorbed on a chelating agent. This method utilizes an eluent that consists of an aqueous solution containing a water-soluble inorganic sulfide and a basic compound at specific concentrations. Another notable patent is for a process for producing a chelate resin, which features a functional group that exhibits excellent adsorption capacity for metal ions.

Career Highlights

Throughout his career, Yushin Kataoka has worked with reputable companies such as Sumitomo Chemical Company and Nittetsu Chemical Industrial Co., Ltd. His work has been instrumental in developing new materials and processes that enhance the efficiency of metal ion adsorption.

Collaborations

Kataoka has collaborated with notable coworkers, including Masaaki Matsuda and Masahiro Aoi. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Yushin Kataoka's contributions to the field of chelating agents and metal adsorption are noteworthy. His patents and collaborations reflect his commitment to innovation and excellence in his 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]