Inventor
MARUYAMA YASUO
JP30 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI CHEM IND
12 patentsUS5308811AMay 3, 1994
Catalyst for polymerizing an olefin and method for producing an olefin polymer
MITSUBISHI CHEM IND136 citations98
US4902761AFeb 20, 1990
Method for producing an olefin polymer
MITSUBISHI CHEM IND23 citations92
US4060593ANov 29, 1977
Preparation of titanium trichloride
MITSUBISHI CHEM IND20 citations74
US4115533ASep 19, 1978
Preparation of solid titanium trichloride
MITSUBISHI CHEM IND16 citations73
US4115532ASep 19, 1978
Preparation of solid titanium trichloride
MITSUBISHI CHEM IND11 citations73
US4380608AApr 19, 1983
Process for producing propylene-ethylene block copolymer
MITSUBISHI CHEM IND14 citations72
US4883848ANov 28, 1989
Method for producing an olefin polymer
MITSUBISHI CHEM IND6 citations63
US5128417AJul 7, 1992
3-methylbutene-1 polymer, composition containing said polymer, and molded articles of said composition
MITSUBISHI CHEM IND3 citations62
US4645797AFeb 24, 1987
3-Methylbutene-1 polymer composition and process for its production
MITSUBISHI CHEM IND4 citations62
US5061755AOct 29, 1991
Polypropylene composition and highly transparent polypropylene film made thereof
MITSUBISHI CHEM IND6 citations60
US5270409ADec 14, 1993
Process for producing olefin polymer
MITSUBISHI CHEM IND1 citations52
US4970187ANov 13, 1990
Catalyst for producing an olefin polymer
MITSUBISHI CHEM IND0 citations52
MITSUBISHI CHEM CORP
5 patentsUS6340652B1Jan 22, 2002
Catalysts for polymerization of α-olefins, process for producing α-olefin polymers, novel transition metal compounds and catalyst components for polymerization of α-olefin
MITSUBISHI CHEM CORP52 citations95
US6252097B1Jun 26, 2001
Transition metal compounds
MITSUBISHI CHEM CORP36 citations95
US5973084AOct 26, 1999
Method for polymerizing olefins using a novel catalyst
MITSUBISHI CHEM CORP52 citations95
US5928982AJul 27, 1999
Catalyst for polymerizing an olefin and method for polymerizing the olefin
MITSUBISHI CHEM CORP46 citations95
US6590045B2Jul 8, 2003
Catalysts for polymerization of α-olefins, process for producing α-olefin polymers, novel transition metal compounds and catalyst components for polymerization of α-olefin
MITSUBISHI CHEM CORP2 citations63
NIPPON TELEGRAPH & TELEPHONE
4 patentsUS6512924B2Jan 28, 2003
Mobile communications system
NIPPON TELEGRAPH & TELEPHONE20 citations92
US5649301AJul 15, 1997
Mobile communication method for controlling origination or termination of a call in a desired network
NIPPON TELEGRAPH & TELEPHONE23 citations91
US5703941ADec 30, 1997
Connection control method for personal communications
NIPPON TELEGRAPH & TELEPHONE18 citations81
US5995837ANov 30, 1999
Mobile communication system
NIPPON TELEGRAPH & TELEPHONE2 citations62