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Forward Citations = 49

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12 inventors (with patents filed for the assignee):

Yoichi Kageyama (7 out of 13 patents)

Yukio Nakako (4 out of 10 patents)

Makoto Suzuki (2 out of 8 patents)

4. Kazuhiko Onuma (2 out of 5 patents)

5. Jun Imai (2 out of 4 patents)

6. Tetsuo Matsumura (2 out of 5 patents)

7. Nobuyoshi Hirokoh (2 out of 2 patents)

8. Hironori Kageyama (2 out of 2 patents)

9. Tetsuo Masuyama (1 out of 7 patents)

10. Toshihiro Kawakami (1 out of 2 patents)

11. Akihiro Matsuki (1 out of 1 patent)

12. Hiromu Kobayashi (1 out of 4 patents)

7 patents: Sort by Forward Citations

1. 4818374 - Process for converting coal to an oil fraction (1989-04-04),

2. 4750991 - Method for hydrogenating a solvent-refined coal (1988-06-14),

3. 4740289 - Process for the hydrogenolysis of a coal liquid bottom (1988-04-26),

4. 4737266 - Method for hydrogenating a solvent-refined coal (1988-04-12),

5. 4541914 - Process for converting coal (1985-09-17),

6. 4508841 - Process for producing porous refractory inorganic oxide products (1985-04-02),

7. 4448896 - Hydrogenation catalyst for desulfurization and removal of heavy metals (1984-05-15),

Asia Oil Company Limited is a leading oil and gas exploration and production company based in Asia. With a strong focus on operational excellence and sustainable practices, we strive to deliver high-quality products and services to meet the energy needs of our customers. Our experienced team of professionals is dedicated to driving innovation and delivering value to our stakeholders.

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USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#2,034 in Tokyo

#5,301 in Japan

Tokyo, Japan

Asia Oil Company Limited