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Research Association for Petroleum Alternatives Development

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USPTO Granted Patents = 15

Forward Citations = 182

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27 inventors (with patents filed for the assignee):

Kozo Takatsu (5 out of 5 patents)

Nobuyuki Morimoto (3 out of 3 patents)

Michio Sugimoto (3 out of 3 patents)

4. Masatoshi Shibata (2 out of 18 patents)

5. Tetsuya Imai (2 out of 7 patents)

6. Minoru Koikeda (2 out of 2 patents)

7. Yoshinobu Aoki (2 out of 2 patents)

8. Soichi Uchiyama (2 out of 2 patents)

9. Noboru Kawata (2 out of 2 patents)

10. Takashi Suzuki (2 out of 86 patents)

11. Toshio Itoh (1 out of 5 patents)

12. Tomohiro Yoshinari (1 out of 10 patents)

13. Hiroshi Fujita (1 out of 7 patents)

14. Toshio Ito (1 out of 1 patent)

15. Takashi Yamamoto (1 out of 41 patents)

15 patents: Sort by Forward Citations

1. 5061362 - Process for hydrogenation of heavy oil (1991-10-29),

2. 5008001 - Process for hydrogenation of heavy oil (1991-04-16),

3. 4948773 - Amphora particulate catalyst-support and a method for the preparation of (1990-08-14),

4. 4837000 - Crystalline silicates and process for the production thereof (1989-06-06),

5. 4822737 - Process for producing ethanol by fermentation (1989-04-18),

6. 4766263 - Hydrocarbon synthesis process utilizing crystalline aluminosilicate (1988-08-23),

7. 4728672 - Process for producing hydrocarbons (1988-03-01),

8. 4698449 - Crystalline silicates, and processes for the production or use thereof (1987-10-06),

9. 4695440 - Crystalline aluminosilicate ISI-6 (1987-09-22),

10. 4673693 - Process for preparing oxygen-containing organic compounds (1987-06-16),

11. 4657750 - Process for the production of crystalline silicate ISI-4 using ethylene (1987-04-14),

12. 4622308 - Catalyst for the production of hydrocarbons from the synthesis gas (1986-11-11),

13. 4582858 - Process for the production of mixed alcohols (1986-04-15),

14. 4578259 - Process for preparing a crystalline aluminosilicate (1986-03-25),

15. 4564643 - Process for the production of mixed alcohols (1986-01-14),

Company Overview

The Research Association for Petroleum Alternatives Development is based in Tokyo, Japan, and focuses on advancing technologies related to alternative fuels and energy sources. The organization engages in extensive research and development to promote sustainable energy solutions, aiming to reduce reliance on traditional petroleum products. Its work encompasses various domains, including biofuels, synthetic fuels, and other innovative energy technologies, contributing to the global transition towards cleaner energy systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

15 Patents

#1,544 in Tokyo

#3,449 in Japan

#40,018 in the World

Research Association for Petroleum Alternatives Development

Forward Citations = 182

27 inventors:

Kozo Takatsu (5 out of 5 patents)

Nobuyuki Morimoto (3 out of 3 patents)

Michio Sugimoto (3 out of 3 patents)

4. Masatoshi Shibata (2 out of 18 patents)

5. Tetsuya Imai (2 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Research Association for Petroleum Alternatives Development. Retrieved from https://idiyas.com/company/research-association-for-petroleum-alternatives-development

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

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]

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