Hayashi; Kiyoshige
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hayashi; Kiyoshige.The latest application filed is for "process for the production of a petroleum pitch or coke of a high purity".
- Hayashi; Kiyoshige - Tokyo JP
| Patent | Date |
|---|---|
| Process for the production of a petroleum pitch or coke of a high purity Grant 4,312,742 - Hayashi January 26, 1 | 1982-01-26 |
| Production of high-density carbon materials Grant 4,202,868 - Hayashi , et al. May 13, 1 | 1980-05-13 |
| Process for the production of petroleum coke Grant 4,108,798 - Sze , et al. August 22, 1 | 1978-08-22 |
| Process for producing high-crystalline petroleum coke Grant 4,049,538 - Hayashi , et al. September 20, 1 | 1977-09-20 |
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