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Amagasaki, Japan

Yoshihiko Sunami

USPTO Granted Patents = 10

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 62(Granted Patents)

Location History:

Amagasaki, JA (1978)
Amagasaki, JP (1979 - 1983)
Kashima, JP (1989)
Ibaraki, JP (1984 - 1991)

Company Filing History:

Sumitomo Metal Industries, Inc.

Sumikin Coke Company Limited

Sumikin Chemical Co., Ltd.

4. 1 out of 776

Kureha Kagaku Kogyo Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1978-1991

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5066384 - Process for refining coal-derived heavy carbonaceous materials (1991-11-19),

2. 4874564 - Molding process and device therefor (1989-10-17),

3. 4671907 - Method of manufacturing carbon materials (1987-06-09),

4. 4437974 - Coal liquefaction process (1984-03-20),

5. 4402824 - Process for refining coal-based heavy oils (1983-09-06),

6. 4326946 - Process for manufacture of solvent for coal liquefaction (1982-04-27),

7. 4303498 - Process for manufacture of solvent for coal liquefaction (1981-12-01),

8. 4272324 - Process for producing shaft furnace cokes (1981-06-09),

9. 4178215 - Method of manufacturing blast furnace coke (1979-12-11),

10. 4073625 - Process for preparing briquettes (1978-02-14),

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