Inventor
NAKAJIMA RYOICHI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “NAKAJIMA RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MARUZEN PETROCHEM CO LTD
6 patentsUS5736030AApr 7, 1998
Process for manufacturing fine particles of pitch with a high softening point
MARUZEN PETROCHEM CO LTD27 citations92
US4705618ANov 10, 1987
Process for the preparation of an intermediate pitch for manufacturing carbon products
MARUZEN PETROCHEM CO LTD30 citations92
US5182011AJan 26, 1993
Process for preparing pitches
MARUZEN PETROCHEM CO LTD27 citations91
US6194344B1Feb 27, 2001
Process for preparing carbonaceous material carrying ultrafinely dispersed metal
MARUZEN PETROCHEM CO LTD23 citations89
US5091072AFeb 25, 1992
Process for preparing pitches
MARUZEN PETROCHEM CO LTD18 citations70
US5240613AAug 31, 1993
Process for regenerating clogged filters
MARUZEN PETROCHEM CO LTD11 citations68