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Nitta Kazumasa, Ueda Takashi, Yasuda Yoshiyuki, Kido Syunichi: Communication mode switching method for mobile station. Nippon Telegraph & Telephone, March 12, 1997: EP0762669-A2 (133 worldwide citation)

The ground base station informs an in-level for the ground system, an out-level from the ground system, a timer value and an edge information indicating the edge of the service area, in addition to the broadcast information. It assumes that the mobile station MS moves from position 31 to zone 26 at ...


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Hatakeyama Jun, Ueda Takashi, Ogiwara Tsutomu, Iwabuchi Motoaki: Antireflection film material, substrate having antireflection film and method for forming pattern. Shin Etsu Chem, November 4, 2004: JP2004-310019 (75 worldwide citation)

PROBLEM TO BE SOLVED: To provide an antireflection film material having an excellent antireflection effect against exposure at short wavelength, a high etching selection ratio, that is, having a sufficiently fast etching rate with respect to a photoresist film, and having a sufficiently slow etching ...


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Tsutsui Toshiyuki, Yoshitsugu Ken, Ueda Takashi: Process for the preparation of an ethylene copolymer and an olefin polymer, and catalysts for olefin polymerization.. Mitsui Petrochemical, October 23, 1991: EP0452920-A2 (73 worldwide citation)

The present invention provides an ethylene copolymer comprising constituent units (a) derived from ethylene and constituent units (b) derived from an alpha -olefin having 3 to 20 carbon atoms, the ethylene copolymer being characterized in that (A) the ethylene copolymer has a density (d) of 0.86 to ...


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Imuta Junichi C O Mitsui Petro, Saito Junji C O Mitsui Petroch, Ueda Takashi C O Mitsui Petroc, Kiso Yoshihisa C O Mitsui Petr, Mizuno Akira C O Mitsui Petroc, Kawasaki Masaaki C O Mitsui Pe, Hashimoto Mikio C O Mitsui Pet: Novel transition metal compound, and polymerization catalyst containing it.. Mitsui Petrochemical, December 21, 1994: EP0629631-A2 (67 worldwide citation)

A transition metal compound of formula (I): wherein M is a transition metal of Group IVa, Group Va and Group VIa of the periodic table; R and R, which may all be identical or different from each other, are each a hydrogen atom, a halogen atom, a hydrocarbon group of 1 to 20 carbon atoms, a halogenat ...


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Ueda Takashi, Okawa Kazunori: Olefin polymerization catalyst and olefin polymerization.. Mitsui Petrochemical, November 25, 1992: EP0515132-A2 (45 worldwide citation)

A solid catalyst for olefin polymerization comprising [A] a particulate carrier composed of (i) an oxide of at least one element selected from among those belonging to the groups of II, III and IV of the periodic table, and containing (ii) at least 1.0 % by weight of water, [B] an organoaluminum oxy ...


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Tsutsui Toshiyuki C O Mitsui P, Ueda Takashi C O Mitsui Petroc: Olefin polymerization catalyst and process for the polymerization of olefins.. Mitsui Petrochemical, August 7, 1991: EP0439964-A2 (43 worldwide citation)

In accordance with the present invention, there are provided olefin polymerization solid catalysts comprising [A] a solid titanium catalyst component containing titanium, magnesium and halogen as its essential ingredients, said catalyst component having supported thereon [B] a transition metal compo ...


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Tsutsui Toshiyuki C O Mitsui P, Ueda Takashi C O Mitsui Petroc: Olefin polymerization solid catalysts and process for the polymerization of olefins.. Mitsui Petrochemical, August 21, 1991: EP0442725-A2 (41 worldwide citation)

The present invention provides an olefin polymerization solid catalyst prepared by pre-polymerizing olefin in a suspension containing [A] a component obtainable by bringing a particulate carrier, an organoaluminum compound [A-a] and water into contact with one another, [B] a transition metal compoun ...


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Ueda Takashi, Hashimoto Mikio, Kawasaki Masaaki, Fukuoka Daisuke, Imuta Junichi: Process for producing propylene polymer composition, and propylene polymer composition. Mitsui Petrochemical, April 3, 1996: EP0704463-A1 (38 worldwide citation)

A process for preparing a propylene polymer composition comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (a), a step (b) for preparing a propylene-olefin copolymer (b) and a step (c) for preparing an ethylene-olefin copolymer (c) in the prese ...


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Nishi Yasuki, Ueno Susumu, Ueda Takashi, Nagata Kiyohito: Satellite and terrestrial cellular integrated mobile communication system. Nippon Telegraph & Telephone, December 27, 1996: EP0750406-A2 (38 worldwide citation)

A satellite and terrestrial cellular integrated mobile communication system in which accesses to a satellite mobile communication system can be made by using a mobile terminal for a terrestrial mobile communication system. The system uses a dual mode mobile terminal device formed by a child station ...