Kyoji Ohdan

This inventor holds 22 USPTO granted patents, primarily in Catalysis Technology. Top assignees: Ube Industries, Inc., Produits Chimiques Ugine Kuhlmann. Active years: 1977-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kyoji Ohdan. Retrieved from https://idiyas.com/inventor/kyoji-ohdan

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

USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 4.5

ph-index = 9

Forward Citations = 192(Granted Patents)

Location History:

Ube, JA (1977 - 1978)
Ube, JP (1978 - 1988)
Yamaguchi, JP (1992 - 1999)

Company Filing History:

Produits Chimiques Ugine Kuhlmann

patents

Years Active: 1977-1999

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Areas of Expertise:

Catalyst

Acrylonitrile

Methacrylic Acid

Maleic Anhydride

Oxidation

Ammoxidation

Fluidized Bed Reactor

Porous Lithium Aluminate

Electromagnetic Effect

Barium Ferrite

Carboxylic Acid

Spinel Structure

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5885917 - Porous lithium aluminate carrier of spinel structure for catalyst (1999-03-23),

2. 5688984 - Porous lithium aluminate carrier of spinel structure for catalyst (1997-11-18),

3. 5164349 - Electromagnetic effect material (1992-11-17),

4. 4778734 - Barium ferrite magnetic powder and magnetic recording medium containing (1988-10-18),

5. 4444907 - Methacrylic acid production catalyst (1984-04-24),

6. 4364844 - Catalyst for production of unsaturated carboxylic acid, preparation (1982-12-21),

7. 4290922 - Ammoxidation catalyst for the production of acrylonitrile from propylene (1981-09-22),

8. 4278614 - Process for the catalytical preparation of acrylonitrile (1981-07-14),

9. 4267385 - Process for the catalytic preparation of acrolein and methacrolein (1981-05-12),

10. 4264476 - Catalyst for producing acrylonitrile in a fluidized bed reactor (1981-04-28),

11. 4256914 - Catalytic oxidation of methacrolein (1981-03-17),

12. 4217309 - Process for producing methacrolein (1980-08-12),

13. 4205010 - Method for the catalytical production of acrylonitrile (1980-05-27),

14. 4177161 - Catalytic oxidative process for producing maleic anhydride (1979-12-04),

15. 4171328 - Catalytic oxidation of isobutylene (1979-10-16),

Title: Kyoji Ohdan: A Pioneer in Catalytic Innovations

Introduction

Kyoji Ohdan, an esteemed inventor based in Ube, Japan, has made significant contributions to the field of catalysis through his innovative patents. With a remarkable portfolio of 22 patents, Ohdan has earned recognition for his work in developing advanced catalytic materials that enhance chemical processes.

Latest Patents

Among his latest innovations is the patent for a porous lithium aluminate carrier with a spinel structure tailored for catalysis. This carrier features a mean pore diameter ranging from 40 to 1,000 angstroms and a total pore volume between 0.2 to 1.5 mL/g. It is designed to support catalyst compounds that include platinum group metals, significantly improving the efficiency of catalytic reactions. Notably, this carrier is particularly effective in facilitating the catalytic reaction of nitrite esters and carbon monoxide, leading to the production of carbonate diesters such as dimethyl carbonate.

Career Highlights

Ohdan has had an impressive career, having worked with prominent companies such as Ube Industries, Inc. and Produits Chimiques Ugine Kuhlmann. His association with these organizations has allowed him to develop and commercialize his innovative solutions, making an impact in the chemical industry.

Collaborations

Throughout his career, Kyoji Ohdan has collaborated with peers, including Sumio Umemura and Tokuo Matsuzaki. These collaborations have fostered a productive exchange of ideas and expertise, further advancing the field of catalysis and extending the applicability of his inventions.

Conclusion

In summary, Kyoji Ohdan stands out as a notable figure in the realm of innovations and inventions related to catalysis. His extensive patent portfolio illustrates his commitment to improving chemical processes and the efficiency of catalysis. With each innovation, Ohdan continues to leave a lasting legacy in the field, paving the way for future advancements.

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]