P

Inventor

HAYASHI KIYOSHIGE

6 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHI KIYOSHIGE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MARUZEN PETROCHEM CO LTD

4 patents
US4049538ASep 20, 1977

Process for producing high-crystalline petroleum coke

MARUZEN PETROCHEM CO LTD67 citations94
US4202868AMay 13, 1980

Production of high-density carbon materials

MARUZEN PETROCHEM CO LTD46 citations91
US3959115AMay 25, 1976

Production of petroleum cokes

MARUZEN PETROCHEM CO LTD17 citations70
US4040946AAug 9, 1977

Process for the production of a petroleum coke and coking crystallizer used thereof

MARUZEN PETROCHEM CO LTD6 citations61

HI MAX LTD

1 patent
US4312742AJan 26, 1982

Process for the production of a petroleum pitch or coke of a high purity

HI MAX LTD53 citations88

LUMMUS CO

1 patent
US4108798AAug 22, 1978

Process for the production of petroleum coke

LUMMUS CO28 citations80