1
Terunori Fujita, Yasushi Tohi, Makoto Mitani, Shigekazu Matsui, Junji Saito, Masatoshi Nitabaru, Kiyoaki Sugi, Haruyuki Makio, Toshiyuki Tsutsui: Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and &agr;-olefin/conjugated diene copolymers. Mitsui Chemicals, Birch Stewart Kolasch & Birch, October 30, 2001: US06309997 (73 worldwide citation)

The invention provides olefin polymerization catalyst exhibiting excellent polymerization activities, a process for olefin polymerization using the catalyst, a novel transition metal compound useful for the catalyst, and an &agr;-olefin/conjugated diene copolymer having specific properties. The olef ...


2
Junji Saito: Semiconductor device with reduced side gate effect. Fujitsu, Staas & Halsey, April 25, 1995: US05410167 (55 worldwide citation)

A silicon nitride film 2 is formed on a GaAs substrate 1 and patterned to selectively expose the GaAS substrate surface in uniformly distributed areas having a width of not greater than 1 .mu.m. A non-doped GaAs buffer layer is grown on the GaAs substrate to completely cover the silicon nitride film ...


3
Junji Saito: Method of manufacturing semiconductor device with reduced side gate effect. Fujitsu, Staas & Halsey, April 22, 1997: US05622891 (50 worldwide citation)

A silicon nitride film 2 is formed on a GaAs substrate 1 and patterned to selectively expose the GaAS substrate surface in uniformly distributed areas having a width of not greater than 1 .mu.m. A non-doped GaAs buffer layer is grown on the GaAs substrate to completely cover the silicon nitride film ...


4
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Processes for producing propylene polymer utilizing bis (1-(4-isopropyl-7-methyl-indenyl) zirconium halide-base catalyst components. Mitsui Chemicals, Sherman and Shalloway, September 28, 1999: US05959046 (41 worldwide citation)

A process for producing a propylene polymer having an intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., of 1 to 12 dl/g comprises polymerizing propylene optionally with other olefins in the presence of an olefin polymerization catalyst comprising a transition metal ...


5
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Substituted indenyl ring containing metallocene catalyst for propylene polymerization process. Mitsui Petrochemical, Sherman and Shalloway, May 13, 1997: US05629254 (36 worldwide citation)

The novel transition metal catalyst of the invention is represented by the following formula (I): ##STR1## wherein M is a zirconium or hafnium; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom; and Y ...


6
Junji Saito, Keiji Okada, Kenichi Morizono, Makoto Mitani, Terunori Fujita: Ethylene copolymer and process for producing the same, resin composition containing the copolymer, and uses of these. Mitsui Chemicals, Birch Stewart Kolasch & Birch, October 8, 2002: US06462136 (35 worldwide citation)

The present invention is intended to provide an ethylene copolymer having excellent mechanical properties and moldability, a process for preparing the copolymer, a resin composition containing the copolymer and uses thereof. The ethylene copolymer has the following properties: the copolymer comprise ...


7
Terunori Fujita, Yasushi Tohi, Makoto Mitani, Shigekazu Matsui, Junji Saito, Masatoshi Nitabaru, Kiyoaki Sugi, Haruyuki Makio, Toshiyuki Tsutsui: Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers. Mitsui Chemicals, Birch Stewart Kolasch & Birch, November 27, 2007: US07300903 (31 worldwide citation)

The invention provides a process using olefin polymerization catalysts exhibiting excellent polymerization activities. The olefin polymerization catalysts of the invention contain a transition metal compound typified by formula (I) and at least one of an organometallic compound, an organoaluminum ox ...


8
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Process for polymerizing propylene by using a novel metallocene catalyst. Mitsui Petrochemical, January 20, 1998: US05710223 (30 worldwide citation)

A process for polymerizing propylene utilizes a metallocene catalyst component of the formula (I) ##STR1## wherein M is a transition metal, R.sup.1 is a C.sub.2-6 hydrocarbon, R.sup.2 is a C.sub.6-16 aryl group, X.sup.1 and X.sup.2 are each a halogen atom and Y is a divalent hydrocarbon or a divalen ...


9
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Transition metal compound containing substituted indenyl rings. Mitsui Petrochemical, Sherman and Shalloway, April 14, 1998: US05739366 (29 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 ...


10
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Transition metal compound and olefin polymerization catalyst component comprising said compound. Mitsui Petrochemical, Sherman and Shalloway, June 16, 1998: US05767033 (27 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms;